Small mammals in the diet of Barn Owls (Tyto furcata) in an urban area in Rio de Janeiro state, Brazil, with a new record of the dwarf mouse opossum (Cryptonanus) / Pequenos mamíferos na dieta da coruja-suindara (Tyto furcata) em uma região urbana do estado do Rio de Janeiro, Brasil, com um novo registro da catita do gênero Cryptonanus

Several studies emphasize the use of owl pellets in small mammal inventories in natural areas harboring high richness of rare species, but few Brazilian Atlantic forest localities have been surveyed by this method. The present study documents the species composition and abundance of small mammals in the diet of Tyto furcata in an urban area of the municipality of Campos dos Goytacazes, Rio de Janeiro, Brazil, remarking on a new record of the dwarf mouse opossum genus Cryptonanus in the Atlantic forest. We analyzed 265 pellets regurgitated by a pair of T. furcata from November 2016 to September 2017 found in a nesting box. Analysis of the samples enabled finding a total of 596 individuals of four small mammal species. Mus musculus was predominant among the prey items (98.3%), while the native rodents Necromys lasiurus (1.3%) and Holochilus brasiliensis (0,17%) were much rarer. A single specimen of Cryptonanus sp. was identified among the diet items based on distinctive dental characters. The identification of this genus in the present study represents the second record in the state of Rio de Janeiro, and the sixth in the Atlantic Forest biome, suggesting that this marsupial occupies a wider ecological and biogeographic range. The present study underscores the relevance of owl pellets for small mammal surveys, even in urban and highly disturbed areas.

Vários estudos enfatizam o uso de pelotas de coruja em inventários de pequenos mamíferos em áreas naturais com elevada riqueza de espécies raras, mas poucas localidades da Mata Atlântica brasileira têm sido inventariadas por esse método. O presente estudo documenta a composição de espécies e abundância de pequenos mamíferos na dieta de Tyto furcata em uma área urbana do município de Campos dos Goytacazes, Rio de Janeiro, Brasil, discutindo a relevância de um novo registro de um raro marsupial do gênero Cryptonanus na Mata Atlântica. Foram analisadas 265 pelotas regurgitadas por um casal de T. furcata entre novembro de 2016 e setembro de 2017, encontradas abaixo de uma caixa de nidificação. A análise das amostras permitiu encontrar o total de 596 indivíduos de quatro espécies pequenas de mamíferos. O roedor exótico Mus musculus foi predominante entre os itens alimentares (98,3%), enquanto os roedores nativos Necromys lasiurus (1,3%) e Holochilus brasiliensis (0,17%) foram bem mais raros. Um único espécime de Cryptonanus sp. foi identificado entre os itens com base em caracteres dentários. A identificação desse gênero no presente estudo representa o segundo registro no estado do Rio de Janeiro e o sexto no bioma Mata Atlântica, sugerindo que este marsupial ocupa uma ampla faixa ecológica e biogeográfica. O presente estudo destaca a relevância dos pellets de coruja para pesquisas com pequenos mamíferos, mesmo em áreas urbanas e altamente perturbadas.

Small mammals in the diet of Barn Owls (Tyto furcata) in an urban area in Rio de Janeiro state, Brazil, with a new record of the dwarf mouse opossum (Cryptonanus) / Pequenos mamíferos na dieta da coruja-suindara (Tyto furcata) em uma região urbana do estado do Rio de Janeiro, Brasil, com um novo registro da catita do gênero Cryptonanus

Several studies emphasize the use of owl pellets in small mammal inventories in natural areas harboring high richness of rare species, but few Brazilian Atlantic forest localities have been surveyed by this method. The present study documents the species composition and abundance of small mammals in the diet of Tyto furcata in an urban area of the municipality of Campos dos Goytacazes, Rio de Janeiro, Brazil, remarking on a new record of the dwarf mouse opossum genus Cryptonanus in the Atlantic forest. We analyzed 265 pellets regurgitated by a pair of T. furcata from November 2016 to September 2017 found in a nesting box. Analysis of the samples enabled finding a total of 596 individuals of four small mammal species. Mus musculus was predominant among the prey items (98.3%), while the native rodents Necromys lasiurus (1.3%) and Holochilus brasiliensis (0,17%) were much rarer. A single specimen of Cryptonanus sp. was identified among the diet items based on distinctive dental characters. The identification of this genus in the present study represents the second record in the state of Rio de Janeiro, and the sixth in the Atlantic Forest biome, suggesting that this marsupial occupies a wider ecological and biogeographic range. The present study underscores the relevance of owl pellets for small mammal surveys, even in urban and highly disturbed areas.

Vários estudos enfatizam o uso de pelotas de coruja em inventários de pequenos mamíferos em áreas naturais com elevada riqueza de espécies raras, mas poucas localidades da Mata Atlântica brasileira têm sido inventariadas por esse método. O presente estudo documenta a composição de espécies e abundância de pequenos mamíferos na dieta de Tyto furcata em uma área urbana do município de Campos dos Goytacazes, Rio de Janeiro, Brasil, discutindo a relevância de um novo registro de um raro marsupial do gênero Cryptonanus na Mata Atlântica. Foram analisadas 265 pelotas regurgitadas por um casal de T. furcata entre novembro de 2016 e setembro de 2017, encontradas abaixo de uma caixa de nidificação. A análise das amostras permitiu encontrar o total de 596 indivíduos de quatro espécies pequenas de mamíferos. O roedor exótico Mus musculus foi predominante entre os itens alimentares (98,3%), enquanto os roedores nativos Necromys lasiurus (1,3%) e Holochilus brasiliensis (0,17%) foram bem mais raros. Um único espécime de Cryptonanus sp. foi identificado entre os itens com base em caracteres dentários. A identificação desse gênero no presente estudo representa o segundo registro no estado do Rio de Janeiro e o sexto no bioma Mata Atlântica, sugerindo que este marsupial ocupa uma ampla faixa ecológica e biogeográfica. O presente estudo destaca a relevância dos pellets de coruja para pesquisas com pequenos mamíferos, mesmo em áreas urbanas e altamente perturbadas.

Small mammals in the diet of Barn Owls (Tyto furcata) in an urban area in Rio de Janeiro state, Brazil, with a new record of the dwarf mouse opossum (Cryptonanus) / Pequenos mamíferos na dieta da coruja-suindara (Tyto furcata) em uma região urbana do estado do Rio de Janeiro, Brasil, com um novo registro da catita do gênero Cryptonanus

Several studies emphasize the use of owl pellets in small mammal inventories in natural areas harboring high richness of rare species, but few Brazilian Atlantic forest localities have been surveyed by this method. The present study documents the species composition and abundance of small mammals in the diet of Tyto furcata in an urban area of the municipality of Campos dos Goytacazes, Rio de Janeiro, Brazil, remarking on a new record of the dwarf mouse opossum genus Cryptonanus in the Atlantic forest. We analyzed 265 pellets regurgitated by a pair of T. furcata from November 2016 to September 2017 found in a nesting box. Analysis of the samples enabled finding a total of 596 individuals of four small mammal species. Mus musculus was predominant among the prey items (98.3%), while the native rodents Necromys lasiurus (1.3%) and Holochilus brasiliensis (0,17%) were much rarer. A single specimen of Cryptonanus sp. was identified among the diet items based on distinctive dental characters. The identification of this genus in the present study represents the second record in the state of Rio de Janeiro, and the sixth in the Atlantic Forest biome, suggesting that this marsupial occupies a wider ecological and biogeographic range. The present study underscores the relevance of owl pellets for small mammal surveys, even in urban and highly disturbed areas.(AU)

Vários estudos enfatizam o uso de pelotas de coruja em inventários de pequenos mamíferos em áreas naturais com elevada riqueza de espécies raras, mas poucas localidades da Mata Atlântica brasileira têm sido inventariadas por esse método. O presente estudo documenta a composição de espécies e abundância de pequenos mamíferos na dieta de Tyto furcata em uma área urbana do município de Campos dos Goytacazes, Rio de Janeiro, Brasil, discutindo a relevância de um novo registro de um raro marsupial do gênero Cryptonanus na Mata Atlântica. Foram analisadas 265 pelotas regurgitadas por um casal de T. furcata entre novembro de 2016 e setembro de 2017, encontradas abaixo de uma caixa de nidificação. A análise das amostras permitiu encontrar o total de 596 indivíduos de quatro espécies pequenas de mamíferos. O roedor exótico Mus musculus foi predominante entre os itens alimentares (98,3%), enquanto os roedores nativos Necromys lasiurus (1,3%) e Holochilus brasiliensis (0,17%) foram bem mais raros. Um único espécime de Cryptonanus sp. foi identificado entre os itens com base em caracteres dentários. A identificação desse gênero no presente estudo representa o segundo registro no estado do Rio de Janeiro e o sexto no bioma Mata Atlântica, sugerindo que este marsupial ocupa uma ampla faixa ecológica e biogeográfica. O presente estudo destaca a relevância dos pellets de coruja para pesquisas com pequenos mamíferos, mesmo em áreas urbanas e altamente perturbadas.(AU)

Small mammals in the diet of Barn Owls (Tyto furcata) in an urban area in Rio de Janeiro state, Brazil, with a new record of the dwarf mouse opossum (Cryptonanus)

Abstract Several studies emphasize the use of owl pellets in small mammal inventories in natural areas harboring high richness of rare species, but few Brazilian Atlantic forest localities have been surveyed by this method. The present study documents the species composition and abundance of small mammals in the diet of Tyto furcata in an urban area of the municipality of Campos dos Goytacazes, Rio de Janeiro, Brazil, remarking on a new record of the dwarf mouse opossum genus Cryptonanus in the Atlantic forest. We analyzed 265 pellets regurgitated by a pair of T. furcata from November 2016 to September 2017 found in a nesting box. Analysis of the samples enabled finding a total of 596 individuals of four small mammal species. Mus musculus was predominant among the prey items (98.3%), while the native rodents Necromys lasiurus (1.3%) and Holochilus brasiliensis (0,17%) were much rarer. A single specimen of Cryptonanus sp. was identified among the diet items based on distinctive dental characters. The identification of this genus in the present study represents the second record in the state of Rio de Janeiro, and the sixth in the Atlantic Forest biome, suggesting that this marsupial occupies a wider ecological and biogeographic range. The present study underscores the relevance of owl pellets for small mammal surveys, even in urban and highly disturbed areas.

Resumo Vários estudos enfatizam o uso de pelotas de coruja em inventários de pequenos mamíferos em áreas naturais com elevada riqueza de espécies raras, mas poucas localidades da Mata Atlântica brasileira têm sido inventariadas por esse método. O presente estudo documenta a composição de espécies e abundância de pequenos mamíferos na dieta de Tyto furcata em uma área urbana do município de Campos dos Goytacazes, Rio de Janeiro, Brasil, discutindo a relevância de um novo registro de um raro marsupial do gênero Cryptonanus na Mata Atlântica. Foram analisadas 265 pelotas regurgitadas por um casal de T. furcata entre novembro de 2016 e setembro de 2017, encontradas abaixo de uma caixa de nidificação. A análise das amostras permitiu encontrar o total de 596 indivíduos de quatro espécies pequenas de mamíferos. O roedor exótico Mus musculus foi predominante entre os itens alimentares (98,3%), enquanto os roedores nativos Necromys lasiurus (1,3%) e Holochilus brasiliensis (0,17%) foram bem mais raros. Um único espécime de Cryptonanus sp. foi identificado entre os itens com base em caracteres dentários. A identificação desse gênero no presente estudo representa o segundo registro no estado do Rio de Janeiro e o sexto no bioma Mata Atlântica, sugerindo que este marsupial ocupa uma ampla faixa ecológica e biogeográfica. O presente estudo destaca a relevância dos pellets de coruja para pesquisas com pequenos mamíferos, mesmo em áreas urbanas e altamente perturbadas.

Modified eye evisceration in a tropical screech owl (Megascops choliba)

Background: An adult owl was presented with an injury to the right eye that rendered it blind in that eye. The left eye was normal. Removal of the right eye was recommended and a modified eye evisceration was performed. No complications were observed during or after surgery. The objective of this paper is to describe the modified eye evisceration technique that was successfully used in a tropical screech owl (Megascops choliba). Case: An adult owl was presented with an injury to the right eye that rendered it blind in that eye. Two previous surgical treatments have been carried out but have not been successful. Using a portable slit-lamp (Kowa SL-15®), both eyes were examined. The left eye was normal. Upon ophthalmic examination of the right eye, the owl demonstrated blepharospasm and large central corneal ulcer. Removal of the right eye was recommended. The bird received midazolam hydrochloride [Dormire® - 1 mg/kg, IM] and ketamine hydrochloride [Ketamina® - 5 mg/kg IM] as pre-anesthetic medications. Subsequently, the bird was anesthetized with isoflurane (Isoforine®) by facemask for induction, and then maintained with isoflurane vaporized in 100% oxygen through an endotracheal tube. With the aid of a surgical microscope and microsurgery materials, a modified eye evisceration was performed. Post-operatively, the owl received meloxicam [Maxicam® - 0.5 mg/kg, IM] and tramadol hydrochloride [Cronidor® - 15 mg/kg, orally for 4 days]. The day after surgery, the owl was comfortable and its usual appetite was regained. The patient remained hospitalized for 3 weeks and was evaluated daily. The skin sutures were removed 10 days after the surgical procedure and the surgical wound had healed normally. The patient was reintroduced into the wild after 2 months. During the 6 months post-release, the bird was evaluated once a month, and no complications were observed. Discussion: Severe eye trauma and complicated corneal ulcers are common causes of eyeball removal in birds. In birds, there is a high risk of complications during enucleation. The fragility of the orbital bones makes them susceptible to trauma during the surgery. Evisceration involves the removal of the inner contents of the eye while leaving the cornea and the sclera intact. In the current case, evisceration was chosen because the eye was blind, and maintaining a blind eye would be a source of pain and infection. In the modified evisceration technique, the risk of complications is minimal compared to enucleation, mainly because surgical manipulation is minimal. In our case, the total surgery time was 20 min. Another complication reported after enucleation in birds is the possibility of disfiguring the bird because the removal of the globe disturbs the natural head balance. To avoid these complications, the use of an intraocular prosthesis after evisceration in birds has been performed. However, owls have a tubular-shaped globe with scleral ossicles. These factors could hinder or even prevent the accommodation of a cylindrical silicone prosthesis. In the present case, an intraocular prosthesis implant was never considered due to the unavailability of the prosthesis and to avoid the risk of postoperative complications that have been reported from the literature in dogs. In this case, the owl recovered well from anesthesia without complications, and no postoperative hemorrhage was observed. No signs of pain were observed during the postoperative period and the owl had already shown an appetite and fed on the first postoperative day. The previously published reports using the modified evisceration technique also demonstrated an absence of pain signs during the postoperative period.(AU)

Hippoboscid flies (Diptera: Hippoboscidae) on birds of prey in the Atlantic Forest, Minas Gerais, Brazil / Hipoboscídeos (Diptera: Hippoboscidae) em aves de rapina da Mata Atlântica, Minas Gerais, Brasil

Hippoboscid flies are potential ectoparasites of several avian orders, including birds of prey, a group formed by the orders Falconiformes, Strigiformes, Cathartiformes and Accipitriformes. In this study, we evaluated 155 birds of prey that were brought to the Wildlife Rehabilitation Center of Juiz de Fora, Minas Gerais, Brazil, between the years 2016 and 2019. Two species of hippoboscid flies (Ornithoctona erythrocephala and Icosta americana) were found in five species of birds of prey (Megascops choliba, Asio stygius, Athene cunicularia, Asio clamator and Caracara plancus). The average intensity found was 1.4 hippoboscids/bird and Megascops choliba (tropical screech-owl) was the most parasitized bird. This is the first record of parasitism of Asio stygius (stygian owl) by Ornithoctona erythrocephala in Brazil and of Athene cunicularia (burrowing owl) and Asio clamator (striped owl) by Icosta americana. Ornithoctona erythrocephala is recorded here for the first time infesting birds of prey in the state of Minas Gerais, Brazil.(AU)

Moscas hipoboscídeas são ectoparasitos potenciais de diversas ordens aviárias, incluindo as aves de rapina, grupo formado pelas ordens Falconiformes, Strigiformes, Cathartiformes e Accipitriformes. Neste estudo foram avaliadas 155 aves de rapina que chegaram ao Centro de Triagem de Animais Silvestres de Juiz de Fora, Minas Gerais, Brasil, entre os anos 2016 e 2019. Foram encontradas duas espécies de hipoboscídeos (Ornithoctona erythrocephala e Icosta americana) em cinco espécies de aves de rapina (Megascops choliba, Asio stygius, Athene cunicularia, Asio clamator e Caracara plancus). A intensidade média encontrada foi de 1,4 hipoboscídeo/ave e a espécie de coruja Megascops choliba (corujinha-do-mato) foi a mais parasitada. Este é o primeiro registro do parasitismo da coruja Asio stygius (mocho-diabo) por Ornithoctona erythrocephala, em território brasileiro, e das corujas Athene cunicularia (coruja-buraqueira) e Asio clamator (coruja-orelhuda), sendo parasitadas por Icosta americana. Ornithoctona erythrocephala é aqui registrada pela primeira vez infestando aves de rapina no estado de Minas Gerais, Brasil.(AU)

First record of Blankaartia sinnamaryi (Floch & Fauran, 1956) (Trombidiformes: Trombiculidae) parasitizing the striped owl in Northeastern Brazil / Primeiro registro de Blankaartia sinnamaryi (Floch & Fauran, 1956) (Trombidiformes: Trombiculidae) parasitando uma coruja-listrada no Nordeste do Brasil

The chigger species Blankaartia sinnamaryi (Floch & Fauran) has been collected mainly from birds with a few records from reptiles and mammals. In Brazil, this species has been found on birds in the Minas Gerais and Rio de Janeiro states. Here, we report the first record of B. sinnamaryi parasitizing the striped owl, Pseudoscops clamator (Vieillot), in the Paraíba state, Brazil (northeastern region).(AU)

A espécie de trombiculídeo, Blankaartia sinnamaryi (Floch & Fauran) tem sido coletada principalmente parasitando aves, com alguns registros em répteis e mamíferos. No Brasil, essa espécie foi encontrada em aves nos estados de Minas Gerais e Rio de Janeiro. No presente estudo, relatamos o primeiro registro de B. sinnamaryi parasitando a coruja-listrada, Pseudoscops clamator (Vieillot), no estado da Paraíba, Brasil (região Nordeste).(AU)

Pseudo-hermafroditismo masculino em caprino (Capra aegagrus hircus Linnaeus, 1758). Relato de caso / Male pseudo-hermafroditism in goat (Capra aegagrus hircus Linnaeus, 1758). Case report / Pseudo-hermafroditismo masculino en caprino (Capra aegagrus hircus Linnaeus, 1758). Reporte de caso

Anomalias de intersexo são relatadas em diversas espécies animais. Tal fato resulta de falhas durante o desenvolvimento embrionário e fetal, originando animais hermafroditas verdadeiros e pseudo-hermafroditas. Com este trabalho objetivou-se relatar um caso de pseudo- hermafroditismo masculino em caprino ocorrido no município de Manaus – AM. Devido ao crescimento da pecuária no relacionada ao segmento correspondente a criação de caprinos, torna-se essencial para o sucesso da atividade que falhas no manejo reprodutivo sejam corrigidas haja visto que a ocorrência de intersexualidade em caprinos está relacionada principalmente ao caráter mocho dos animais ligados a fatores hereditários. O presente trabalho relata o caso de um caprino mocho, que apresentava- se ao exame clínico, morfologicamente como sendo do sexo feminino, com presença de estrutura vulvar anormal. Ao realizar o estudo anatômico, através da dissecação das estruturas, observou-se órgãos que se assemelhavam tanto aos femininos quanto aos masculinos, com presença de testículos intra-abdominal e órgão apresentando-se semelhante ao útero. Para a correta identificação destes órgãos efetuaram-se estudos histológicos, com a identificação correta e características de cada segmento analisado. De acordo com as estruturas encontradas foi possível diagnosticar o animal como tratando-se de um caso de pseudo-hermafroditismo masculino.

Intersex anomalies have been conducted in several animal species. This fact results from failures during embryonic and fetal development, resulting in true hermaphrodites animals and pseudo-hermaphrodites. This study aimed to report a case of pseudo-hermaphroditism male in goats occurred in the city of Manaus - AM. Due to the growth of livestock farming in related to the corresponding segment goat rearing, it is essential to the success of the activity that failures in reproductive management are corrected given the fact that the occurrence of intersexuality in goats is mainly related to the owl character of animals linked to hereditary factors. This paper reports the case of a goat owl, which proved to clinical examination, morphologically as being female, with the presence of abnormal vulvar structure. Upon anatomical study by dissecting the structures, there was bodies that resembled both to women as to men, with the presence of testicles in the abdomen and body presenting similar to the uterus. For the correct identification of these bodies is effected histological, studies with proper identification and characteristics of each segment analyzed. According to the structures found it was possible to diagnose the animal as in the case of a case of male pseudo-hermaphroditism.

Se informan anomalías de la intersexualidad en varias especies animales. Este hecho resulta de fallas durante el desarrollo embrionario y fetal, dando origen a verdaderos animales hermafroditas y pseudohermafroditas. Este estudio tuvo como objetivo reportar un caso de pseudohermafroditismo masculino en cabras que ocurrió en la ciudad de Manaus - AM. Debido al crecimiento de la ganadería en relación al segmento correspondiente a la cría de cabras, es fundamental para el éxito de la actividad que se corrijan las fallas en el manejo reproductivo ya que la ocurrencia de intersexualidad en cabras se relaciona principalmente con el carácter búho de los animales vinculados a factores hereditarios. El presente trabajo reporta el caso de una cabra búho, que se presentó al examen clínico, morfológicamente como hembra, con la presencia de una estructura vulvar anormal. Al realizar el estudio anatómico, mediante la disección de las estructuras, se observaron órganos que se asemejaban tanto a órganos femeninos como masculinos, con presencia de testículos intraabdominales y un órgano similar al útero. Para la correcta identificación de estos órganos se realizaron estudios histológicos, con la correcta identificación y características de cada segmento analizado. Según las estructuras encontradas, fue posible diagnosticar al animal como un caso de pseudohermafroditismo masculino.

Pseudo-hermafroditismo masculino em caprino (Capra aegagrus hircus Linnaeus, 1758). Relato de caso / Male pseudo-hermafroditism in goat (Capra aegagrus hircus Linnaeus, 1758). Case report / Pseudo-hermafroditismo masculino en caprino (Capra aegagrus hircus Linnaeus, 1758). Reporte de caso

Anomalias de intersexo são relatadas em diversas espécies animais. Tal fato resulta de falhas durante o desenvolvimento embrionário e fetal, originando animais hermafroditas verdadeiros e pseudo-hermafroditas. Com este trabalho objetivou-se relatar um caso de pseudo- hermafroditismo masculino em caprino ocorrido no município de Manaus AM. Devido ao crescimento da pecuária no relacionada ao segmento correspondente a criação de caprinos, torna-se essencial para o sucesso da atividade que falhas no manejo reprodutivo sejam corrigidas haja visto que a ocorrência de intersexualidade em caprinos está relacionada principalmente ao caráter mocho dos animais ligados a fatores hereditários. O presente trabalho relata o caso de um caprino mocho, que apresentava- se ao exame clínico, morfologicamente como sendo do sexo feminino, com presença de estrutura vulvar anormal. Ao realizar o estudo anatômico, através da dissecação das estruturas, observou-se órgãos que se assemelhavam tanto aos femininos quanto aos masculinos, com presença de testículos intra-abdominal e órgão apresentando-se semelhante ao útero. Para a correta identificação destes órgãos efetuaram-se estudos histológicos, com a identificação correta e características de cada segmento analisado. De acordo com as estruturas encontradas foi possível diagnosticar o animal como tratando-se de um caso de pseudo-hermafroditismo masculino.(AU)

Intersex anomalies have been conducted in several animal species. This fact results from failures during embryonic and fetal development, resulting in true hermaphrodites animals and pseudo-hermaphrodites. This study aimed to report a case of pseudo-hermaphroditism male in goats occurred in the city of Manaus - AM. Due to the growth of livestock farming in related to the corresponding segment goat rearing, it is essential to the success of the activity that failures in reproductive management are corrected given the fact that the occurrence of intersexuality in goats is mainly related to the owl character of animals linked to hereditary factors. This paper reports the case of a goat owl, which proved to clinical examination, morphologically as being female, with the presence of abnormal vulvar structure. Upon anatomical study by dissecting the structures, there was bodies that resembled both to women as to men, with the presence of testicles in the abdomen and body presenting similar to the uterus. For the correct identification of these bodies is effected histological, studies with proper identification and characteristics of each segment analyzed. According to the structures found it was possible to diagnose the animal as in the case of a case of male pseudo-hermaphroditism.(AU)

Se informan anomalías de la intersexualidad en varias especies animales. Este hecho resulta de fallas durante el desarrollo embrionario y fetal, dando origen a verdaderos animales hermafroditas y pseudohermafroditas. Este estudio tuvo como objetivo reportar un caso de pseudohermafroditismo masculino en cabras que ocurrió en la ciudad de Manaus - AM. Debido al crecimiento de la ganadería en relación al segmento correspondiente a la cría de cabras, es fundamental para el éxito de la actividad que se corrijan las fallas en el manejo reproductivo ya que la ocurrencia de intersexualidad en cabras se relaciona principalmente con el carácter búho de los animales vinculados a factores hereditarios. El presente trabajo reporta el caso de una cabra búho, que se presentó al examen clínico, morfológicamente como hembra, con la presencia de una estructura vulvar anormal. Al realizar el estudio anatómico, mediante la disección de las estructuras, se observaron órganos que se asemejaban tanto a órganos femeninos como masculinos, con presencia de testículos intraabdominales y un órgano similar al útero. Para la correcta identificación de estos órganos se realizaron estudios histológicos, con la correcta identificación y características de cada segmento analizado. Según las estructuras encontradas, fue posible diagnosticar al animal como un caso de pseudohermafroditismo masculino.(AU)

Small mammal diversity in Semi-deciduous Seasonal Forest of the southernmost Brazilian Pampa: the importance of owl pellets for rapid inventories in human-changing ecosystems

The Pampa biogeographic province covers a mere 2% of the Brazilian territory (176,496 km²). However, it stands out as a complex and diverse ecosystem, although its mammal communities are still scarcely understood. Human activities are transforming the territory into a mosaic of agroecosystems, native and exotic forest fragments, and grasslands. Here we conducted the first investigation to determine the richness of small mammal assemblages in the region based on extensive analyses of owl pellets (Tyto furcata). Craniodental remains were studied from samples collected from 12 Semi-deciduous Seasonal Forest sites in the municipality of São Lourenço do Sul, State of Rio Grande do Sul, Southern Brazil. A total of 2,617 individuals belonging to 18 taxa were recorded, including 2 marsupials (Didelphidae; 0.42%), 2 chiropterans (Molossidae, Phyllostomidae; 0.12%), and 14 rodents (Cricetidae, Muridae, Caviidae; 99.46%). The rodent genera Oligoryzomys, Mus, Calomys, and Akodon were the most common taxa. Large samples also included poorly known taxa, such as the cricetids Bibimys, Juliomys (recording here its southernmost occurrence), Lundomys, and Wilfredomys. From a biogeographical point of view, the recorded assemblage embraces a mixture of Platan, Pampean, and Atlantic Forest elements, highlighting the role of the southernmost Brazilian hills as a wedge favoring the penetration of forest micromammals to higher latitudes. Our findings testify to the great diversity of the Pampa, but also point to a growing homogeneity and dominance of rodent species that are widespread in agroecosystems. Rapid inventories based on owl pellets emerge as a suitable, economic, non-invasive tool to document these community changes.

Small mammal diversity in Semi-deciduous Seasonal Forest of the southernmost Brazilian Pampa: the importance of owl pellets for rapid inventories in human-changing ecosystems

The Pampa biogeographic province covers a mere 2% of the Brazilian territory (176,496 km²). However, it stands out as a complex and diverse ecosystem, although its mammal communities are still scarcely understood. Human activities are transforming the territory into a mosaic of agroecosystems, native and exotic forest fragments, and grasslands. Here we conducted the first investigation to determine the richness of small mammal assemblages in the region based on extensive analyses of owl pellets (Tyto furcata). Craniodental remains were studied from samples collected from 12 Semi-deciduous Seasonal Forest sites in the municipality of São Lourenço do Sul, State of Rio Grande do Sul, Southern Brazil. A total of 2,617 individuals belonging to 18 taxa were recorded, including 2 marsupials (Didelphidae; 0.42%), 2 chiropterans (Molossidae, Phyllostomidae; 0.12%), and 14 rodents (Cricetidae, Muridae, Caviidae; 99.46%). The rodent genera Oligoryzomys, Mus, Calomys, and Akodon were the most common taxa. Large samples also included poorly known taxa, such as the cricetids Bibimys, Juliomys (recording here its southernmost occurrence), Lundomys, and Wilfredomys. From a biogeographical point of view, the recorded assemblage embraces a mixture of Platan, Pampean, and Atlantic Forest elements, highlighting the role of the southernmost Brazilian hills as a wedge favoring the penetration of forest micromammals to higher latitudes. Our findings testify to the great diversity of the Pampa, but also point to a growing homogeneity and dominance of rodent species that are widespread in agroecosystems. Rapid inventories based on owl pellets emerge as a suitable, economic, non-invasive tool to document these community changes.(AU)

Small mammal diversity in Semi-deciduous Seasonal Forest of the southernmost Brazilian Pampa: the importance of owl pellets for rapid inventories in human-changing ecosystems

Abstract The Pampa biogeographic province covers a mere 2% of the Brazilian territory (176,496 km²). However, it stands out as a complex and diverse ecosystem, although its mammal communities are still scarcely understood. Human activities are transforming the territory into a mosaic of agroecosystems, native and exotic forest fragments, and grasslands. Here we conducted the first investigation to determine the richness of small mammal assemblages in the region based on extensive analyses of owl pellets (Tyto furcata). Craniodental remains were studied from samples collected from 12 Semi-deciduous Seasonal Forest sites in the municipality of São Lourenço do Sul, State of Rio Grande do Sul, Southern Brazil. A total of 2,617 individuals belonging to 18 taxa were recorded, including 2 marsupials (Didelphidae; 0.42%), 2 chiropterans (Molossidae, Phyllostomidae; 0.12%), and 14 rodents (Cricetidae, Muridae, Caviidae; 99.46%). The rodent genera Oligoryzomys, Mus, Calomys, and Akodon were the most common taxa. Large samples also included poorly known taxa, such as the cricetids Bibimys, Juliomys (recording here its southernmost occurrence), Lundomys, and Wilfredomys. From a biogeographical point of view, the recorded assemblage embraces a mixture of Platan, Pampean, and Atlantic Forest elements, highlighting the role of the southernmost Brazilian hills as a wedge favoring the penetration of forest micromammals to higher latitudes. Our findings testify to the great diversity of the Pampa, but also point to a growing homogeneity and dominance of rodent species that are widespread in agroecosystems. Rapid inventories based on owl pellets emerge as a suitable, economic, non-invasive tool to document these community changes.

Hematological parameters and total plasma protein values of captive strigiformes occurring in Brazil / Parâmetros hematológicos e valores de proteínas plasmáticas totais de Strigiformes cativos de ocorrência no Brasil

Brazil has the highest number of birds of prey in the world, which are important environmental quality indicators. Nevertheless, few studies of the clinical pathology of raptors have been developed in this country. The objectives of this study were to create a database of owl hematology in Brazil and to compare the values between sex in Asio clamator, Megascops spp. and Tyto furcata. Blood samples were collected from 81 captive owls of 10 species located in Rio Grande do Sul, Santa Catarina, Paraná and São Paulo states, Brazil. Hemogram and Total Plasma Protein (TPP) values were determined. Reference intervals (RIs) and descriptive statistic values were established using an Excel program with Reference Value Advisor. The reference intervals were the following: A. clamator: RBC (×106/μL) 1.0-2.5; PCV (%) 30.2-50.1; Hb (g dL-¹) 6.7-15.3; MCV (fL) 123.8-355.2; MCHC (%) 17.1-38.6; WBC (× 10³/μL) 1.2-23.6; Heterophils (× 10³/μL) 0.6-16.6; Lymphocytes (× 10³/μL) 0.6-10.2; Eosinophils (× 10³/μL) 0.0-1.9; Basophils (× 10³/μL) 0.0-1.0; Thrombocytes (× 10³/μL) 10.8-56.6; H/L 0.0-10.8. Megascops spp.: RBC (× 106/μL) 0.8-2.3; PCV (%) 29.7-44.6; Hb (g dL-¹) 6.4-12.4; MCV (fL) 131.6-374.4; MCHC (%) 12.1-34; WBC (× 10³/μL) 0.7-23.1; Heterophils (× 10³/μL) 1.1-10.3; Lymphocytes (× 10³/μL) 0.0-11.5; Eosinophils (× 10³/μL) 0.0-2.2; Basophils (× 10³/μL) 0.0-0.7; Thrombocytes (× 10³/μL) 10.3-43.6; H/L 0.5-7.3; TPP (g dL-¹) 2.9-5.1. The parameters for Tyto furcata were presented with descriptive statistics values. Individual data were provided for the others Strigiformes species sampled. This study provides a wide database of hematological and TPP references for Megascops spp., A. clamator and T. furcata and hematological values for Athene cunicularia, Bubo virginianus, Pulsatrix perspicillata, Asio stygius, Pulsatrix koeniswaldiana, Strix virgata and Asio flammeus in Brazil.

O Brasil tem o maior número de aves de rapina do mundo, e estas aves são, como topo de cadeia alimentar, importantes indicadores de qualidade ambiental. No entanto, poucos estudos sobre a patologia clínica de rapinantes foram desenvolvidos no Brasil. Os objetivos deste estudo foram criar uma base de dados para hematologia de corujas no país e comparar os valores entre sexos em Asio clamator, Megascops spp. e Tyto furcata. Amostras de sangue foram coletadas de 81 corujas em cativeiro, de 10 espécies diferentes, localizadas nos estados do Rio Grande do Sul, Santa Catarina, Paraná e São Paulo, Brasil. Foi determinado o hemograma e as proteínas plasmáticas totais (PPT). Os intervalos de referência (IR) e os valores de estatística descritiva foram estabelecidos através da utilização do Excel com o suplemento do Reference Value Advisor. Os IR foram os seguintes: A. clamator: Eritócitos (x106 76 /μL) 1.0-2.5;Ht (%) 30.2-50.1; Hb (g/dL) 6.7-15.3; VCM (fL) 123.8-355.2; CHCM (%) 17.1-38.6; Leucócitos (x10³/μL) 1.2-23.6; Heterófilos (x10³/μL) 0.6-16.6; Linfócitos (x10³/μL) 0.6-10.2; Eosinófilos (x10³/μL) 0.0-1.9; Basófilos (x10³/μL) 0.0-1.0; Trombócitos (x10³/μL) 0.0-81.65; H:L 0.0-10.8. Megascops spp.: Eritócitos (x106/μL) 0.8-2.3; Ht (%) 29.7-44.6; Hb (g/dL) 6.4-12.4; VCM (fL) 131.6-374.4; CHCM (%)12.1-34; Leucócitos (x10³/μL) 0.7-23.1; Heterófilos (x10³/μL) 1.1-10.3; Linfócitos (x10³/μL) 0.0-11.5; Eosinófilos (x10³/μL) 0.0-2.2; Basófilos (x10³/μL) 0.0-0.7; Trombócitos (x10³/μL) 10.3-43.6; H:L 0.5-7.3; PPT (g/dL) 2.9-5.1. Os parâmetros para Tyto furcata foram apresentados com valores de estatística descritiva. Para as outras espécies de Strigiformes amostradas, os valores individuais foram incluidos. Este estudo forneceu uma ampla base de dados de valores hematológicos e de proteínas plasmáticas totais para Megascops spp., A. clamator [...].

Hematological parameters and total plasma protein values of captive strigiformes occurring in Brazil / Parâmetros hematológicos e valores de proteínas plasmáticas totais de Strigiformes cativos de ocorrência no Brasil

Brazil has the highest number of birds of prey in the world, which are important environmental quality indicators. Nevertheless, few studies of the clinical pathology of raptors have been developed in this country. The objectives of this study were to create a database of owl hematology in Brazil and to compare the values between sex in Asio clamator, Megascops spp. and Tyto furcata. Blood samples were collected from 81 captive owls of 10 species located in Rio Grande do Sul, Santa Catarina, Paraná and São Paulo states, Brazil. Hemogram and Total Plasma Protein (TPP) values were determined. Reference intervals (RIs) and descriptive statistic values were established using an Excel program with Reference Value Advisor. The reference intervals were the following: A. clamator: RBC (×106/μL) 1.0-2.5; PCV (%) 30.2-50.1; Hb (g dL-¹) 6.7-15.3; MCV (fL) 123.8-355.2; MCHC (%) 17.1-38.6; WBC (× 10³/μL) 1.2-23.6; Heterophils (× 10³/μL) 0.6-16.6; Lymphocytes (× 10³/μL) 0.6-10.2; Eosinophils (× 10³/μL) 0.0-1.9; Basophils (× 10³/μL) 0.0-1.0; Thrombocytes (× 10³/μL) 10.8-56.6; H/L 0.0-10.8. Megascops spp.: RBC (× 106/μL) 0.8-2.3; PCV (%) 29.7-44.6; Hb (g dL-¹) 6.4-12.4; MCV (fL) 131.6-374.4; MCHC (%) 12.1-34; WBC (× 10³/μL) 0.7-23.1; Heterophils (× 10³/μL) 1.1-10.3; Lymphocytes (× 10³/μL) 0.0-11.5; Eosinophils (× 10³/μL) 0.0-2.2; Basophils (× 10³/μL) 0.0-0.7; Thrombocytes (× 10³/μL) 10.3-43.6; H/L 0.5-7.3; TPP (g dL-¹) 2.9-5.1. The parameters for Tyto furcata were presented with descriptive statistics values. Individual data were provided for the others Strigiformes species sampled. This study provides a wide database of hematological and TPP references for Megascops spp., A. clamator and T. furcata and hematological values for Athene cunicularia, Bubo virginianus, Pulsatrix perspicillata, Asio stygius, Pulsatrix koeniswaldiana, Strix virgata and Asio flammeus in Brazil.(AU)

O Brasil tem o maior número de aves de rapina do mundo, e estas aves são, como topo de cadeia alimentar, importantes indicadores de qualidade ambiental. No entanto, poucos estudos sobre a patologia clínica de rapinantes foram desenvolvidos no Brasil. Os objetivos deste estudo foram criar uma base de dados para hematologia de corujas no país e comparar os valores entre sexos em Asio clamator, Megascops spp. e Tyto furcata. Amostras de sangue foram coletadas de 81 corujas em cativeiro, de 10 espécies diferentes, localizadas nos estados do Rio Grande do Sul, Santa Catarina, Paraná e São Paulo, Brasil. Foi determinado o hemograma e as proteínas plasmáticas totais (PPT). Os intervalos de referência (IR) e os valores de estatística descritiva foram estabelecidos através da utilização do Excel com o suplemento do Reference Value Advisor. Os IR foram os seguintes: A. clamator: Eritócitos (x106 76 /μL) 1.0-2.5;Ht (%) 30.2-50.1; Hb (g/dL) 6.7-15.3; VCM (fL) 123.8-355.2; CHCM (%) 17.1-38.6; Leucócitos (x10³/μL) 1.2-23.6; Heterófilos (x10³/μL) 0.6-16.6; Linfócitos (x10³/μL) 0.6-10.2; Eosinófilos (x10³/μL) 0.0-1.9; Basófilos (x10³/μL) 0.0-1.0; Trombócitos (x10³/μL) 0.0-81.65; H:L 0.0-10.8. Megascops spp.: Eritócitos (x106/μL) 0.8-2.3; Ht (%) 29.7-44.6; Hb (g/dL) 6.4-12.4; VCM (fL) 131.6-374.4; CHCM (%)12.1-34; Leucócitos (x10³/μL) 0.7-23.1; Heterófilos (x10³/μL) 1.1-10.3; Linfócitos (x10³/μL) 0.0-11.5; Eosinófilos (x10³/μL) 0.0-2.2; Basófilos (x10³/μL) 0.0-0.7; Trombócitos (x10³/μL) 10.3-43.6; H:L 0.5-7.3; PPT (g/dL) 2.9-5.1. Os parâmetros para Tyto furcata foram apresentados com valores de estatística descritiva. Para as outras espécies de Strigiformes amostradas, os valores individuais foram incluidos. Este estudo forneceu uma ampla base de dados de valores hematológicos e de proteínas plasmáticas totais para Megascops spp., A. clamator [...].(AU)

Placa bloqueada em fratura tibiotársica de coruja suindara (Tyto furcata): relato de caso / Locking plate in tibiotarsal fracture in a suindara owl: case report

Foi atendida, no Hospital Veterinário da Universidade de Cuiabá, uma coruja suindara (Tyto furcata), resgatada pela Polícia Militar Ambiental, sem histórico, adulta e 400 gramas de peso corporal. A ave apresentava impotência funcional do membro pélvico direito, além de desvio, crepitação e dor na região proximal tibiotársica direita, sem lesão cutânea. Estudo radiográfico revelou fratura diafisária oblíqua curta em tibiotarso direito. A estabilização da fratura foi realizada com placa bloqueada do sistema de 1,5mm, na função de apoio, seis orifícios, com três parafusos monocorticais distais, dois parafusos monocorticais proximais e um parafuso bicortical proximal. Ao 30º dia do pós-operatório, os achados radiográficos de consolidação óssea e o retorno da função do membro permitiram a alta médica. Concluiu-se que o uso de placa bloqueada em função apoio para estabilização de fraturas tibiotársicas simples de coruja suindara oferece resultados satisfatórios.(AU)

An adult suindara owl (Tyto furcata), with no specific history and 400 grams of body weight was treated at the Veterinary Hospital of the University of Cuiabá. The patient presented functional impotence in the right pelvic limb, deviation, crepitation and pain in the proximal region in right tibiotarsal, without cutaneous lesions. Radiographs revealed a short oblique diaphyseal fracture at the right tibiotarsus. Fracture stabilization was performed with a 1.5mm locking plate, buttress, six holes; three distal monocortical screws, two proximal monocortical screws and a proximal bicortical screw. On the 30th postoperative day, radiographic revealed bone healing, and the return of limb function allowed medical discharge. It was concluded that the use of locking plates in buttress function to stabilize simple tibiotarsus fractures in suindara owl offers satisfactory results.(AU)

Placa bloqueada em fratura tibiotársica de coruja suindara (Tyto furcata): relato de caso / Locking plate in tibiotarsal fracture in a suindara owl: case report

Foi atendida, no Hospital Veterinário da Universidade de Cuiabá, uma coruja suindara (Tyto furcata), resgatada pela Polícia Militar Ambiental, sem histórico, adulta e 400 gramas de peso corporal. A ave apresentava impotência funcional do membro pélvico direito, além de desvio, crepitação e dor na região proximal tibiotársica direita, sem lesão cutânea. Estudo radiográfico revelou fratura diafisária oblíqua curta em tibiotarso direito. A estabilização da fratura foi realizada com placa bloqueada do sistema de 1,5mm, na função de apoio, seis orifícios, com três parafusos monocorticais distais, dois parafusos monocorticais proximais e um parafuso bicortical proximal. Ao 30º dia do pós-operatório, os achados radiográficos de consolidação óssea e o retorno da função do membro permitiram a alta médica. Concluiu-se que o uso de placa bloqueada em função apoio para estabilização de fraturas tibiotársicas simples de coruja suindara oferece resultados satisfatórios.(AU)

An adult suindara owl (Tyto furcata), with no specific history and 400 grams of body weight was treated at the Veterinary Hospital of the University of Cuiabá. The patient presented functional impotence in the right pelvic limb, deviation, crepitation and pain in the proximal region in right tibiotarsal, without cutaneous lesions. Radiographs revealed a short oblique diaphyseal fracture at the right tibiotarsus. Fracture stabilization was performed with a 1.5mm locking plate, buttress, six holes; three distal monocortical screws, two proximal monocortical screws and a proximal bicortical screw. On the 30th postoperative day, radiographic revealed bone healing, and the return of limb function allowed medical discharge. It was concluded that the use of locking plates in buttress function to stabilize simple tibiotarsus fractures in suindara owl offers satisfactory results.(AU)

Habitat use, fruit consumption, and population density of the black-headed night monkey, Aotus nigriceps, in southeastern Peru / Uso de habitat, consumo de frutos, y densidad poblacional del mono nocturno de cabeza negra, Aotus nigriceps, en el sureste de Perú

El mono nocturno de cabeza negra, Aotus nigriceps, tiene uno de los rangos de distribución más grandes de las 11 especies de monos nocturnos que se encuentran en América Central y del Sur. Sin embargo, solo tres estudios se han centrado en su ecología, describiendo una variación considerable en el hábitat, la composición del grupo y la densidad poblacional. Por lo tanto, analisamos el uso de hábitat, la composición del grupo, la densidad poblacional y la dieta de 14 grupos en dos sitios de campo en el sureste de Perú. Todos los grupos muestreados se encontraron en selva tropical secundaria, a menudo dominada por especies nativas de bambú. La mitad de los dormideros observados estaban en bambú, aunque también surgieron grupos de matorrales de caña y lianas. Esto contrasta con otros estudios, que encontraron grupos de Aotus viviendo en cavidades de árboles y lianas. Las estimaciones de densidad poblacional para los dos sitios fueron de 19 y 50 individuos por km2, fuera del rango previamente reportado para A. nigriceps (3134 individuos por km2). Recuperamos semillas de 12 especies de muestras fecales en el transcurso de dos temporadas de campo, pertenecientes principalmente a Cecropiaceae, Piperaceae y Moraceae. Nuestros resultados sugieren que el mono nocturno de cabeza negra puede sobrevivir, e incluso prosperar, en el bosque secundario, alimentándose ampliamente de especies pioneras, ocupando una variedad de tipos de bosque, todo mientras vive a menos de 1 km de asentamientos humanos.(AU)

The black-headed night monkey, Aotus nigriceps, has one of the largest distribution ranges of the 11 night monkey species found across Central and South America. Yet, only three studies have focused on their ecology, describing considerable variation in habitat, group composition, and population density. Therefore, we analyzed habitat use, group composition, population density, and diet of 14 groups at two field sites in southeastern Peru. All sampled groups were found in secondary tropical rainforest, often dominated by native bamboo species. Half of the observed sleeping sites were in bamboo stands, though groups also emerged from cane thickets and lianas. This contrasts with other Aotus studies which have found groups living in tree cavities and lianas. Population density estimates for both sites were 19 and 50 individuals per km2, outside the range previously reported for A. nigriceps (3134 individuals per km2). We recovered seeds of 12 species from fecal samples over the course of two field seasons, belonging mainly to Cecropiaceae, Piperaceae and Moraceae. Our results suggest that the black-headed night monkey in Peru can survive and even thrive in secondary forest, feeding extensively on pioneer species, occupying a range of forest types, all while living near human settlements.(AU)

New genera records of split-eyed owlflies (Neuroptera: Myrmeleontidae: Ascalaphinae) from Colombia

The genera Ameropterus Esben-Petersen, 1922 and Fillus Navás, 1919 are recorded from Colombia for the first time. New distributional records for two Cordulecerus Rambur, 1842 species are also presented. Ameropterus dissimilis (McLachlan, 1871) and Ameropterus scutellaris (Gerstaecker, 1894) are redescribed and illustrated, and Ameropterus mexicanus (Van der Weele, 1909) is here proposed as a junior synonym of the latter. The taxonomic status of Nephelasca crocea Navás, 1914 is discussed. Keys to the Colombian species of Ameropterus and Cordulecerus and a list of the split-eyed Ascalaphinae species of the New World are also given.

New genera records of split-eyed owlflies (Neuroptera: Myrmeleontidae: Ascalaphinae) from Colombia

The genera Ameropterus Esben-Petersen, 1922 and Fillus Navás, 1919 are recorded from Colombia for the first time. New distributional records for two Cordulecerus Rambur, 1842 species are also presented. Ameropterus dissimilis (McLachlan, 1871) and Ameropterus scutellaris (Gerstaecker, 1894) are redescribed and illustrated, and Ameropterus mexicanus (Van der Weele, 1909) is here proposed as a junior synonym of the latter. The taxonomic status of Nephelasca crocea Navás, 1914 is discussed. Keys to the Colombian species of Ameropterus and Cordulecerus and a list of the split-eyed Ascalaphinae species of the New World are also given.(AU)

Morphological description and functions of feathers to support Otus angelinae activitiesˆien

Otus angelinae is an owl that known for their silent flight, capable of flying just inches from their prey without being detected. The quietness of their flight is owed to their special feathers. This study aimed to describe the morphology and function of feathers of Otus angelinae. Two Otus angelinae aged 4 months taken from the wild forest of East Java. Owl were sedated with chloroform, dissected, and then observed to know the morphological of feathers that coat its body. The results showed that each part of the body of an owl composed of different morphology and size of feathers to support the activity of flying.(AU)