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1.
Braz. j. biol ; 83: e243651, 2023. tab, graf
Artigo em Inglês | LILACS-Express | MEDLINE, LILACSEXPRESS | ID: biblio-1285608

RESUMO

Abstract Acacia auriculiformis A. Cunn. Ex Benth. (Fabaceae), a non-native pioneer species in Brazil with fast growth and rusticity, is used in restoration programs. Our goal was to assess during a 24-month survey the pattern of arthropods (phytophagous insects, bees, spiders, and predator insects) on the leaf surfaces of A. auriculiformis saplings. Fourteen species of phytophagous, two of bees and eleven of predators were most abundant on the adaxial surface. The values of the ecological indexes (abundance, diversity, and species richness) and the rarefaction, and k-dominance curves of phytophagous, bees and arthropod predators were highest on the adaxial leaf surface of A. auriculiformis. The k-dominance and abundance of Aleyrodidae (Hemiptera) (both leaf surfaces), the native stingless bee Tetragonisca angustula Latreille (Hymenoptera: Apidae) (both leaf surfaces) and the ant Brachymyrmex sp. (adaxial surface) and Pheidole sp. (Hymenoptera: Formicidae) (abaxial surface) were the highest between the taxonomic groups of phytophagous, bees, and predators, respectively on A. auriculiformis saplings. The ecological indexes and rarefaction, abundance, and k-dominance curves of phytophagous insects, bees, and predators were highest on the adaxial leaf surface. The preference of phytophagous insects for the adaxial leaf surface is probably due to the lower effort required to move on this surface. Understanding the arthropod preferences between leaf surfaces may help to develop sampling and pest management plans for the most abundant phytophagous insects on A. auriculiformis saplings. Also, knowledge on the preference pattern of bees and predators may be used to favour their conservation.


Resumo Acacia auriculiformis A. Cunn. Ex Benth. (Fabaceae), espécie pioneira com rápido crescimento e rusticidade, é utilizada em programas de recuperação de áreas degradadas. O objetivo deste trabalho foi avaliar, durante 24 meses, o padrão de distribuição de artrópodes (insetos fitófagos, abelhas, aranhas e insetos predadores) nas superfícies foliares de A. auriculiformis. Quatorze espécies de fitófagos, duas de abelhas e onze de predadores foram mais abundantes na superfície adaxial. Índices ecológicos (abundância, diversidade e riqueza de espécies) e curvas de rarefação e dominância-k de fitófagos, abelhas e artrópodes predadores foram maiores na face adaxial de folhas de A. auriculiformis. A dominância-k e a abundância de Aleyrodidae (Hemiptera) (ambas as superfícies foliares), da abelha nativa sem ferrão Tetragonisca angustula Latreille (Hymenoptera: Apidae) (ambas as superfícies foliares) e das formigas Brachymyrmex sp. (superfície adaxial) e Pheidole sp. (Hymenoptera: Formicidae) (superfície abaxial) foram as maiores entre os grupos taxonômicos de fitófagos polinizadores e predadores, respectivamente, em plantas jovens de A. auriculiformis. A abundância, diversidade e riqueza e as curvas de rarefação e dominância-k de artrópodes fitófagos, abelhas e predadores foram maiores nas superfícies adaxiais das folhas dessa árvore. A preferência pela superfície adaxial da folha se deve, provavelmente, ao menor esforço para se movimentarem na mesma. Compreender as preferências dos artrópodes pelas superfícies foliares pode auxiliar no desenvolvimento de planos de amostragem e manejo de pragas em A. auriculiformis. Além disso, o conhecimento da distribuição de abelhas e predadores pode favorecer a conservação desses insetos.

2.
Artigo em Inglês | VETINDEXEXPRESS | ID: vti-762045

RESUMO

Abstract Caryocar brasiliense Camb. (Malpighiales: Caryocaraceae) trees have a wide distribution in the Cerrado, and it is protected by federal laws. The need to monitor and understand pest damage to crops and forests is a major motivation for the study of population distribution. The mites (Acari) population distributions on C. brasiliense are unknown. We studied seasonal mite population distribution and their ecological indices on C. brasiliense trees in Cerrado areas during three years. Greatest number of Agistemus sp. (Stigmaeidae), Histiostoma sp. (Histiostomidae), Proctolaelaps sp. (Ascidae), and diversity and species richness on leaves of C. brasiliense occurred in the autumn; Tetranychus sp.1 (Tetranychidae) on leaves in the autumn and winter; Histiostoma sp., and Proctolaelaps sp. in fruits in the summer. No significant effect of season was observed in the abundance of Eutetranychus sp., Tetranychus sp.2 (Tetranychidae) and Acaridae. The populations of Acaridae, Eutetranychus sp., Proctolaelaps sp. and Tetranychus sp.1 negatively correlated with temperature. Proctolaelaps sp. and Tetranychus sp.1 correlated negatively with rainfall and Eutetranychus sp. and Proctolaelaps sp. positively with sunlight. The period with low rainfall and relative humidity increases the phytophagous mites and their predators, especially Agistemus sp.. The Tetranychus sp. and Histiostoma sp. species may become pests in C. brasiliense in the Cerrado domain.


Resumo As árvores Caryocar brasiliense Camb. (Malpighiales: Caryocaraceae) têm ampla distribuição no Cerrado e são protegidas por leis federais. A necessidade de monitorar e entender os danos causados pelas pragas às culturas e florestas é uma das motivações para o estudo da distribuição populacional que para ácaros (Acari) em C. brasiliense é desconhecida. A distribuição sazonal de populações de ácaros e seus índices ecológicos em C. brasiliense em áreas de Cerrado foram estudados durante três anos. Maior número de Agistemus sp. (Stigmaeidae), Histiostoma sp. (Histiostomidae), Proctolaelaps sp. (Ascidae) e diversidade e riqueza de espécies nas folhas de C. brasiliense ocorreram no outono; Tetranychus sp.1 (Tetranychidae) no outono e inverno; Histiostoma sp. e Proctolaelaps sp. em frutos ocorreram no verão. Não foram observados efeitos das estações na abundância de Eutetranychus sp., Tetranychus sp.2 (Tetranychidae) e Acaridae. As populações de Acaridae, Eutetranychus sp., Proctolaelaps sp. e Tetranychus sp.1 correlacionaram-se negativamente com a temperatura. Correlações negativas foram observadas entre chuva e Proctolaelaps sp. e Tetranychus sp.1 e positivas entre luz solar e Eutetranychus sp. e Proctolaelaps sp.. Baixa pluviosidade e umidade relativa do ar aumentaram os ácaros fitófagos e seus predadores, principalmente Agistemus sp.. As espécies Tetranychus sp. e Histiostoma sp. podem se tornar pragas em C. brasiliense no domínio do Cerrado.

3.
Braz. j. biol ; 82: e239747, 2022. graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1249277

RESUMO

Abstract Oncideres females girdle tree branches of the Fabaceae family, interrupting the sap flow and turning the wood conditions ideal for their larvae development. The bark of Stryphnodendron adstringens (Mart.) Coville, a species native to the Brazilian Cerrado, is widely used in the traditional medicine. The objectives were to report, for the first time, Oncideres saga (Dalman), using S. adstringens as a host and to describe the pattern of branch girdling and oviposition distribution by this insect on these branches. The diameter at the base and the length of the girdled branches were measured and the number of incisions made by the O. saga females to oviposit, per branch section (basal, median and apical), counted. The emerged specimens were counted and the diameter of the exit holes measured. The average diameter at the base of the girdled branches was 2.5 ± 0.16 cm and the length was 90.6 ± 4.6 cm. The average number of incisions per branch was 37.7 ± 2.7. Damage by O. saga can reduce the growth and cause losses on S. adstringens, a tree with great extractivism potential.,


Resumo As fêmeas de Oncideres anelam galhos de árvores da família Fabaceae, interrompendo o fluxo de seiva, tornando a madeira ideal para o desenvolvimento de suas larvas. A casca de Stryphnodendron adstringens (Mart.) Coville uma espécie nativa do cerrado brasileiro, é amplamente utilizada na medicina tradicional. Os objetivos foram relatar, pela primeira vez, Oncideres saga (Dalman), usando S. adstringens como hospedeiro e descrever o padrão dos galhos anelados e a distribuição das posturas desse inseto. O diâmetro na base e o comprimento dos galhos anelados foram medidos e o número de incisões feitas pelas fêmeas por seção do galho (basal, mediana e apical) quantificados. Os espécimes emergidos foram contados e o diâmetro dos orifícios de emergência medidos. O diâmetro médio, dos galhos anelados, na base foi de 2,58 ± 0,16 cm e o comprimento de 90,6 ± 4,6 cm. O número médio de posturas por galho foi 37,7 ± 2,7. Danos por O. saga podem reduzir o crescimento e causar perdas em S. adstringens, árvore com grande potencial extrativista.

4.
Braz. j. biol ; 82: e235017, 2022. tab
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1249279

RESUMO

Abstract Caryocar brasiliense Camb. (Malpighiales: Caryocaraceae) is widely distributed in the Brazilian savanna and its fruits are used by humans for food, production of cosmetics, lubricants, and in the pharmaceutical industry. This plant is damaged by galling insects. Number of these galling insects and their parasitoids was recorded, in the field (galls) and in the laboratory (adults emerged from the galls), from three C. brasiliense crown heights, during three years. Numbers of adults of Eurytoma sp. (Hymenoptera: Eurytomidae), galling insect (younger attack) and Sycophila sp. (Hymenoptera: Eurytomidae) (a parasitoid of Eurytoma sp.), were greater on the apical parts of C. brasiliense tree crowns. Numbers and groups of Eurytoma sp. globoid galls (older attack) were higher in the median and basal crown parts. The numbers of Eurytoma sp. galls were higher on apical part of C. brasiliense tree crown and also of their parasitoids.


Resumo Caryocar brasiliense Camb. (Malpighiales: Caryocaraceae) é, amplamente, distribuída no cerrado brasileiro e seus frutos são utilizados para alimentação humana, produção de cosméticos, lubrificantes e na indústria farmacêutica, no entanto, é danificada por insetos galhadores. O número de insetos galhadores e seus parasitoides foram avaliados, em campo (galhas) e em laboratório (emergência de adultos das galhas), em três alturas do dossel de C. brasiliense, durante três anos. Os números de adultos Eurytoma sp. (Hymenoptera: Eurytomidae), inseto galhador (galhas novas) e de Sycophila sp. (Hymenoptera: Eurytomidae), parasitoide de Eurytoma sp., foram maiores na parte apical do dossel da copa de árvores de C. brasiliense. A quantidade de galhas globoides de Eurytoma sp., isoladas ou em grupo (galhas velhas), foi maior na parte mediana e basal da copa. Os números de adultos do galhador Eurytoma sp. e de seus parasitoides, que os seguem, foram maiores na parte apical da copa de árvores de C. brasiliense.

5.
Braz. j. biol ; 82: e236355, 2022. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1153474

RESUMO

Abstract Caryocar brasiliense Camb. (Malpighiales: Caryocaraceae) trees have a wide distribution in the Cerrado, and it is protected by federal laws. The need to monitor and understand pest damage to crops and forests is a major motivation for the study of population distribution. The mites (Acari) population distributions on C. brasiliense are unknown. We studied seasonal mite population distribution and their ecological indices on C. brasiliense trees in Cerrado areas during three years. Greatest number of Agistemus sp. (Stigmaeidae), Histiostoma sp. (Histiostomidae), Proctolaelaps sp. (Ascidae), and diversity and species richness on leaves of C. brasiliense occurred in the autumn; Tetranychus sp.1 (Tetranychidae) on leaves in the autumn and winter; Histiostoma sp., and Proctolaelaps sp. in fruits in the summer. No significant effect of season was observed in the abundance of Eutetranychus sp., Tetranychus sp.2 (Tetranychidae) and Acaridae. The populations of Acaridae, Eutetranychus sp., Proctolaelaps sp. and Tetranychus sp.1 negatively correlated with temperature. Proctolaelaps sp. and Tetranychus sp.1 correlated negatively with rainfall and Eutetranychus sp. and Proctolaelaps sp. positively with sunlight. The period with low rainfall and relative humidity increases the phytophagous mites and their predators, especially Agistemus sp.. The Tetranychus sp. and Histiostoma sp. species may become pests in C. brasiliense in the Cerrado domain.


Resumo As árvores Caryocar brasiliense Camb. (Malpighiales: Caryocaraceae) têm ampla distribuição no Cerrado e são protegidas por leis federais. A necessidade de monitorar e entender os danos causados pelas pragas às culturas e florestas é uma das motivações para o estudo da distribuição populacional que para ácaros (Acari) em C. brasiliense é desconhecida. A distribuição sazonal de populações de ácaros e seus índices ecológicos em C. brasiliense em áreas de Cerrado foram estudados durante três anos. Maior número de Agistemus sp. (Stigmaeidae), Histiostoma sp. (Histiostomidae), Proctolaelaps sp. (Ascidae) e diversidade e riqueza de espécies nas folhas de C. brasiliense ocorreram no outono; Tetranychus sp.1 (Tetranychidae) no outono e inverno; Histiostoma sp. e Proctolaelaps sp. em frutos ocorreram no verão. Não foram observados efeitos das estações na abundância de Eutetranychus sp., Tetranychus sp.2 (Tetranychidae) e Acaridae. As populações de Acaridae, Eutetranychus sp., Proctolaelaps sp. e Tetranychus sp.1 correlacionaram-se negativamente com a temperatura. Correlações negativas foram observadas entre chuva e Proctolaelaps sp. e Tetranychus sp.1 e positivas entre luz solar e Eutetranychus sp. e Proctolaelaps sp.. Baixa pluviosidade e umidade relativa do ar aumentaram os ácaros fitófagos e seus predadores, principalmente Agistemus sp.. As espécies Tetranychus sp. e Histiostoma sp. podem se tornar pragas em C. brasiliense no domínio do Cerrado.

6.
Braz J Biol ; 83: e243651, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34431904

RESUMO

Acacia auriculiformis A. Cunn. Ex Benth. (Fabaceae), a non-native pioneer species in Brazil with fast growth and rusticity, is used in restoration programs. Our goal was to assess during a 24-month survey the pattern of arthropods (phytophagous insects, bees, spiders, and predator insects) on the leaf surfaces of A. auriculiformis saplings. Fourteen species of phytophagous, two of bees and eleven of predators were most abundant on the adaxial surface. The values of the ecological indexes (abundance, diversity, and species richness) and the rarefaction, and k-dominance curves of phytophagous, bees and arthropod predators were highest on the adaxial leaf surface of A. auriculiformis. The k-dominance and abundance of Aleyrodidae (Hemiptera) (both leaf surfaces), the native stingless bee Tetragonisca angustula Latreille (Hymenoptera: Apidae) (both leaf surfaces) and the ant Brachymyrmex sp. (adaxial surface) and Pheidole sp. (Hymenoptera: Formicidae) (abaxial surface) were the highest between the taxonomic groups of phytophagous, bees, and predators, respectively on A. auriculiformis saplings. The ecological indexes and rarefaction, abundance, and k-dominance curves of phytophagous insects, bees, and predators were highest on the adaxial leaf surface. The preference of phytophagous insects for the adaxial leaf surface is probably due to the lower effort required to move on this surface. Understanding the arthropod preferences between leaf surfaces may help to develop sampling and pest management plans for the most abundant phytophagous insects on A. auriculiformis saplings. Also, knowledge on the preference pattern of bees and predators may be used to favour their conservation.


Assuntos
Acacia , Formigas , Artrópodes , Animais , Abelhas , Insetos , Folhas de Planta
7.
Braz J Biol ; 82: e239747, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34105681

RESUMO

Oncideres females girdle tree branches of the Fabaceae family, interrupting the sap flow and turning the wood conditions ideal for their larvae development. The bark of Stryphnodendron adstringens (Mart.) Coville, a species native to the Brazilian Cerrado, is widely used in the traditional medicine. The objectives were to report, for the first time, Oncideres saga (Dalman), using S. adstringens as a host and to describe the pattern of branch girdling and oviposition distribution by this insect on these branches. The diameter at the base and the length of the girdled branches were measured and the number of incisions made by the O. saga females to oviposit, per branch section (basal, median and apical), counted. The emerged specimens were counted and the diameter of the exit holes measured. The average diameter at the base of the girdled branches was 2.5 ± 0.16 cm and the length was 90.6 ± 4.6 cm. The average number of incisions per branch was 37.7 ± 2.7. Damage by O. saga can reduce the growth and cause losses on S. adstringens, a tree with great extractivism potential.


Assuntos
Fabaceae , Brasil , Feminino , Medicina Tradicional , Extratos Vegetais
8.
Braz J Biol ; 82: e235017, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34076163

RESUMO

Caryocar brasiliense Camb. (Malpighiales: Caryocaraceae) is widely distributed in the Brazilian savanna and its fruits are used by humans for food, production of cosmetics, lubricants, and in the pharmaceutical industry. This plant is damaged by galling insects. Number of these galling insects and their parasitoids was recorded, in the field (galls) and in the laboratory (adults emerged from the galls), from three C. brasiliense crown heights, during three years. Numbers of adults of Eurytoma sp. (Hymenoptera: Eurytomidae), galling insect (younger attack) and Sycophila sp. (Hymenoptera: Eurytomidae) (a parasitoid of Eurytoma sp.), were greater on the apical parts of C. brasiliense tree crowns. Numbers and groups of Eurytoma sp. globoid galls (older attack) were higher in the median and basal crown parts. The numbers of Eurytoma sp. galls were higher on apical part of C. brasiliense tree crown and also of their parasitoids.


Assuntos
Himenópteros , Malpighiales , Animais , Brasil , Humanos , Insetos , Árvores
9.
Braz J Biol ; 82: e236355, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33729382

RESUMO

Caryocar brasiliense Camb. (Malpighiales: Caryocaraceae) trees have a wide distribution in the Cerrado, and it is protected by federal laws. The need to monitor and understand pest damage to crops and forests is a major motivation for the study of population distribution. The mites (Acari) population distributions on C. brasiliense are unknown. We studied seasonal mite population distribution and their ecological indices on C. brasiliense trees in Cerrado areas during three years. Greatest number of Agistemus sp. (Stigmaeidae), Histiostoma sp. (Histiostomidae), Proctolaelaps sp. (Ascidae), and diversity and species richness on leaves of C. brasiliense occurred in the autumn; Tetranychus sp.1 (Tetranychidae) on leaves in the autumn and winter; Histiostoma sp., and Proctolaelaps sp. in fruits in the summer. No significant effect of season was observed in the abundance of Eutetranychus sp., Tetranychus sp.2 (Tetranychidae) and Acaridae. The populations of Acaridae, Eutetranychus sp., Proctolaelaps sp. and Tetranychus sp.1 negatively correlated with temperature. Proctolaelaps sp. and Tetranychus sp.1 correlated negatively with rainfall and Eutetranychus sp. and Proctolaelaps sp. positively with sunlight. The period with low rainfall and relative humidity increases the phytophagous mites and their predators, especially Agistemus sp.. The Tetranychus sp. and Histiostoma sp. species may become pests in C. brasiliense in the Cerrado domain.


Assuntos
Malpighiales , Ácaros , Tetranychidae , Animais , Demografia , Estações do Ano , Árvores
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