Results 11 to 20 of about 521 (156)

Speciation History Shapes Patterns of Assemblage Species Richness in Birds. [PDF]

Ecol Lett
Speciation is the ultimate source of biodiversity. However, because most species arise in spatial isolation, how speciation shapes patterns of co‐occurring species richness remains unclear. Here we examine how the legacy of speciation affects contemporary biodiversity patterns via a phylogenetic model and show that this build‐up is remarkably slow and ...
Reijenga BR, Etienne RS, Murrell DJ, Pigot AL.   +3 more
europepmc   +2 more sources

Emergence of Livestock-Associated Methicillin-Resistant Staphylococcus aureus ST398 in Wild Birds, Brazil. [PDF]

Microbiologyopen
In a protected forest fragment in southern Brazil, 197 wild birds were sampled, with 12.2% carrying Staphylococcus aureus. Two MRSA ST398 strains, the first reported in Brazilian wild birds, were identified. Genomic analysis revealed resistance and virulence genes, linking these strains to pigs and underscoring the critical need for resistance ...
Ribas MR, Vásquez-Ponce F, Cardoso R, Mesa D, Rocha G, Wolleck VF, Dal Pizzol JL, de Assunção IBF, Oliveira VPE, Salvador G, Rodrigues AT, Melocco GB, Esposito F, Becerra J, Lincopan N, Ferreira FA, Sincero TCM, Palmeiro JK, Wosiacki SR, Osaki SC.   +19 more
europepmc   +2 more sources

Changing Rainfall Drives Locally Asynchronous Reproduction of Tropical Birds via Modular Trophic Pathways. [PDF]

Glob Chang Biol
In low‐latitude mountains, we found insectivorous bird communities switched from breeding before to after the dry season at a threshold in dry‐season insects. Localized breeding season reversal of insectivores across wet‐to‐dry gradients magnified short‐term effects of drought and contrasted with the seasonal stability of nectar‐fruit consumers.
Newell FL, Ausprey IJ, Robinson SK.
europepmc   +2 more sources

Seasonality, biology and threats to Sicalis luteola (Sparrman, 1789) (Aves, Thraupidae) in northeastern Brazil [PDF]

Brazilian Journal of Biology, 2016
Sicalis luteola occurs from Mexico to South America. In the Northeastern Brazilian region its biology, population dynamics and threats are poorly known. The subspecies S. luteola luteiventris apparently migrates northward during austral winter.
G. A. Pereira, M. A. Larrazábal, S. M. Azevedo-Júnior   +2 more
doaj   +5 more sources

Host life-history traits predict haemosporidian parasite prevalence in tanagers (Aves: Thraupidae). [PDF]

Parasitology, 2023
AbstractVector-borne parasites are important ecological drivers influencing life-history evolution in birds by increasing host mortality or susceptibility to new diseases. Therefore, understanding why vulnerability to infection varies within a host clade is a crucial task for conservation biology and for understanding macroecological life-history ...
Aguiar de Souza Penha V, Maia Chaves Bicalho Domingos F, Fecchio A, Bell JA, Weckstein JD, Ricklefs RE, Braga EM, de Abreu Moreira P, Soares L, Latta S, Tolesano-Pascoli G, Alquezar RD, Del-Claro K, Manica LT.   +13 more
europepmc   +4 more sources

Quantifying the success of prey crypsis, aposematism, and evasiveness in avoiding predator attack. [PDF]

Ecology
Abstract Antipredator defenses typically act at distinct stages of the predation sequence—encounter, identification, approach, and subjugation. However, their effectiveness has rarely been quantified and compared simultaneously in wild predator–prey systems.
Linke D, Hernandez Mejia J, Eche Navarro VNP, Gohil P, Ramírez García C, Salinas L, Elias M, Matos-Maraví P.   +7 more
europepmc   +2 more sources

Birds That Don't Exist: Niche Pre-Emption as a Constraint on Morphological Evolution in the Passeroidea. [PDF]

Ecol Lett
We use topological data analysis to reveal a persistent morphological gap in a major group of songbirds (superfamily Passeroidea). The gap remained unoccupied for millions of years, even though nearby morphologies are common and the same body form exists in other groups of birds.
Chia SY, Swain A, Josephs N, Lin L, Fagan WF.   +4 more
europepmc   +2 more sources

Haemosporidian parasites and incubation period influence plumage coloration in tanagers (Passeriformes: Thraupidae). [PDF]

Proc Biol Sci, 2022
Birds are highly visually oriented and use plumage coloration as an important signalling trait in social communication. Hence, males and females may have different patterns of plumage coloration, a phenomenon known as sexual dichromatism. Because males tend to have more complex plumages, sexual dichromatism is usually attributed to female choice ...
Aguiar de Souza Penha V, Maia Chaves Bicalho Domingos F, Fecchio A, Bell JA, Weckstein JD, Ricklefs RE, Braga EM, de Abreu Moreira P, Soares L, Latta S, Tolesano-Pascoli G, Alquezar RD, Del-Claro K, Manica LT.   +13 more
europepmc   +4 more sources

Morphological variation in the Cinnamon Tanager Schistochlamys ruficapillus Aves: Thraupidae) [PDF]

Zootaxa, 2014
The Cinnamon Tanager Schistochlamys ruficapillus inhabits semi-open grassy country, primarily in Brazil south of Amazonia. Three subspecies are currently recognized, one of which, S. r. sicki, is poorly known and endemic to the central Brazilian savannas (Cerrado).
Lopes, Leonardo Esteves, Gonzaga, Luiz Pedreira   +1 more
openaire   +3 more sources

Biogeographic origins of Darwin's finches (Thraupidae: Coerebinae) [PDF]

The Auk, 2018
ABSTRACT Darwin's finches are considered a classic example of an adaptive radiation, and have been the focus of numerous studies from ecological and evolutionary perspectives. Few studies, however, have attempted to investigate the biogeographic origins of Darwin's finches.
Erik R. Funk, Kevin J. Burns
openaire   +1 more source