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1.
Ecology ; 100(6): e02647, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30845354

RESUMO

Scientists have long been trying to understand why the Neotropical region holds the highest diversity of birds on Earth. Recently, there has been increased interest in morphological variation between and within species, and in how climate, topography, and anthropogenic pressures may explain and affect phenotypic variation. Because morphological data are not always available for many species at the local or regional scale, we are limited in our understanding of intra- and interspecies spatial morphological variation. Here, we present the ATLANTIC BIRD TRAITS, a data set that includes measurements of up to 44 morphological traits in 67,197 bird records from 2,790 populations distributed throughout the Atlantic forests of South America. This data set comprises information, compiled over two centuries (1820-2018), for 711 bird species, which represent 80% of all known bird diversity in the Atlantic Forest. Among the most commonly reported traits are sex (n = 65,717), age (n = 63,852), body mass (n = 58,768), flight molt presence (n = 44,941), molt presence (n = 44,847), body molt presence (n = 44,606), tail length (n = 43,005), reproductive stage (n = 42,588), bill length (n = 37,409), body length (n = 28,394), right wing length (n = 21,950), tarsus length (n = 20,342), and wing length (n = 18,071). The most frequently recorded species are Chiroxiphia caudata (n = 1,837), Turdus albicollis (n = 1,658), Trichothraupis melanops (n = 1,468), Turdus leucomelas (n = 1,436), and Basileuterus culicivorus (n = 1,384). The species recorded in the greatest number of sampling localities are Basileuterus culicivorus (n = 243), Trichothraupis melanops (n = 242), Chiroxiphia caudata (n = 210), Platyrinchus mystaceus (n = 208), and Turdus rufiventris (n = 191). ATLANTIC BIRD TRAITS (ABT) is the most comprehensive data set on measurements of bird morphological traits found in a biodiversity hotspot; it provides data for basic and applied research at multiple scales, from individual to community, and from the local to the macroecological perspectives. No copyright or proprietary restrictions are associated with the use of this data set. Please cite this data paper when the data are used in publications or teaching and educational activities.

3.
Sci Rep ; 7(1): 9141, 2017 08 22.
Artigo em Inglês | MEDLINE | ID: mdl-28831073

RESUMO

Although Brazil is a megadiverse country and thus a conservation priority, no study has yet quantified conservation gaps in the Brazilian protected areas (PAs) using extensive empirical data. Here, we evaluate the degree of biodiversity protection and knowledge within all the Brazilian PAs through a gap analysis of vertebrate, arthropod and angiosperm occurrences and phylogenetic data. Our results show that the knowledge on biodiversity in most Brazilian PAs remain scant as 71% of PAs have less than 0.01 species records per km2. Almost 55% of Brazilian species and about 40% of evolutionary lineages are not found in PAs, while most species have less than 30% of their geographic distribution within PAs. Moreover, the current PA network fails to protect the majority of endemic species. Most importantly, these results are similar for all taxonomic groups analysed here. The methods and results of our countrywide assessment are suggested to help design further inventories in order to map and secure the key biodiversity of the Brazilian PAs. In addition, our study illustrates the most common biodiversity knowledge shortfalls in the tropics.


Assuntos
Artrópodes/crescimento & desenvolvimento , Conservação dos Recursos Naturais/métodos , Magnoliopsida/crescimento & desenvolvimento , Vertebrados/crescimento & desenvolvimento , Animais , Artrópodes/classificação , Biodiversidade , Brasil , Espécies em Perigo de Extinção , Magnoliopsida/classificação , Filogenia , Vertebrados/classificação
4.
Biota Neotrop. (Online, Ed. ingl.) ; 15(1): e20140035, Jan.-Mar. 2015. tab, graf
Artigo em Inglês | LILACS | ID: biblio-951021

RESUMO

We present a review on the principal interactions between birds and termites in Brazil. We found 218 bird species feeding on termites or using termitaria for nesting or perching. Termites were mentioned as food source for 179 bird species. Alates were the most consumed caste. Termitaria were mentioned as nest site for 45 bird species. Some bird species also perch on the top of termite mounds to search for their prey or to conduct territorial and/or courtship displays. Considering all interactions between both animal groups, little is known about the identification of termite genera or species. Therefore, we suggest more detailed studies to be conducted on the natural history and ecology of interactions between birds and termites in Brazil.


Apresentamos aqui uma revisão sobre as principais interações entre aves e cupins no Brasil. Foram registradas 218 espécies de aves alimentando-se de cupins ou usando cupinzeiros para nidificar ou se empoleirar. Os cupins foram citados como recurso alimentar para 179 espécies de aves, sendo as formas aladas as mais consumidas. Os cupinzeiros foram citados como sítio de nidificação para 45 espécies de aves. Algumas espécies de aves também se empoleiram no alto de termiteiros para localizar suas presas ou para realizar exibições territoriais e/ou de corte. Considerando-se todas as interações entre ambos os grupos de animais, pouco ainda se conhece sobre a identificação dos gêneros e espécies de térmitas envolvidos. Assim, sugerimos a realização de estudos mais detalhados sobre história natural e ecologia das interações entre aves e cupins no Brasil.

5.
Mol Phylogenet Evol ; 53(2): 450-62, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19632344

RESUMO

Scytalopus and the recently erected Eleoscytalopus are among the Neotropical groups of birds whose taxonomy is most difficult to resolve given their very conservative morphology. We investigated the phylogeny and species limits of Eleoscytalopus and the eastern Scytalopus using two mitochondrial genes and two nuclear introns of multiple individuals from all species of these groups. The eastern Scytalopus are separated in three well defined clades also supported by morphological or vocal characteristics, although the relationships between these clades could not be resolved. We found several allopatric and very divergent lineages in these genera whose characteristics are consistent with species-level divergence, especially in S.speluncae. The great divergence between E. psychopompus and its sister species supports the former as a valid species. Our results corroborate the importance of the Bahia refuge as an avian center of endemism.


Assuntos
Especiação Genética , Passeriformes/genética , Filogenia , Animais , Brasil , Núcleo Celular/genética , DNA Mitocondrial/genética , Evolução Molecular , Genética Populacional , Geografia , Íntrons , Passeriformes/classificação , Análise de Sequência de DNA , Especificidade da Espécie
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