In many primates, including humans, the vocalizations of males and females differ dramatically, with male vocalizations and vocal anatomy often seeming to exaggerate apparent body size. These traits may be favoured by sexual selection because low-frequency male vocalizations intimidate rivals and/or attract females, but this hypothesis has not been systematically tested across primates, nor is it clear why competitors and potential mates should attend to vocalization frequencies. Here we show across anthropoids that sexual dimorphism...
Data from: Correlates of extinction risk in squamate reptiles: the relative importance of biology, geography, threat and range sizeMonika Böhm, Rhiannon Williams, Huw R. Bramhall, Kirsten M. McMillan, Ana D. Davidson, Andrés Garcia, Lucie M. Bland, Jon Bielby & Ben Collen
Aim Evaluating the relative roles of biological traits and environmental factors that predispose species to an elevated risk of extinction is of fundamental importance to macroecology. Identifying species that possess extinction-promoting traits allows targeted conservation action before precipitous declines occur. Such analyses have been carried out for several vertebrate groups, with the notable exception of reptiles. We identify traits correlating with high extinction risk in squamate reptiles, assess whether these differ with geography, taxonomy and...
Data from: Rapid postglacial diversification and long-term stasis within the songbird genus Junco: phylogeographic and phylogenomic evidenceGuillermo Friis, Pau Aleixandre, Ricardo Rodriguez-Estrella, Adolfo G. Navarro-Sigüenza & Borja Milá
Natural systems composed of closely-related taxa that vary in the degree of phenotypic divergence and geographic isolation, provide an opportunity to investigate the rate of phenotypic diversification and the relative roles of selection and drift in driving lineage formation. The genus Junco (Aves: Emberizidae) of North America includes parapatric northern forms that are markedly divergent in plumage pattern and color, in contrast to geographically isolated southern populations in remote areas that show moderate phenotypic divergence....
Data from: Adult sex ratio and operational sex ratio exhibit different temporal dynamics in the wildMaría Cristina Carmona-Isunza, Sergio Ancona, Tamás Székely, Alfonso P. Ramallo-González, Medardo Cruz-López, Martín Alejandro Serrano-Meneses & Clemens Küpper
Adult sex ratio (ASR, the proportion of adult males in the adult population) and operational sex ratio (OSR, the proportion of sexually active males in the mating pool) are fundamental properties of breeding populations and they are often linked to mating systems and sexual selection. However, ASR and OSR emerge via different routes in a population and may exhibit different temporal patterns. Here, we use data from a well-monitored polygamous snowy plover Charadrius nivosus population...
Data from: Long-term population dynamics reveal that survival and recruitment of tropical boobies improve after a hurricaneSergio Ancona, Hugh Drummond, Cristina Rodríguez & José Jaime Zuñiga-Vega
Variability in population numbers is a central issue in evolutionary ecology and also in biodiversity conservation. However, for most seabirds this information is lacking and tropical populations are virtually unstudied. Long-term studies are warranted because world’s seabird populations exhibit an overall declining trend since 1950. Using data spanning 23 years, we investigated how adult survival, local recruitment, and their relative contributions to population growth (λ) vary over time in the blue-footed booby (Sula nebouxii), a...
Why are some traits and trait combinations exceptionally common across the tree of life, whereas others are vanishingly rare? The distribution of trait diversity across a clade at any time depends on the ancestral state of the clade, the rate at which new phenotypes evolve, the differences in speciation and extinction rates across lineages, and whether an equilibrium has been reached. Here we examine the role of transition rates, differential diversification (speciation minus extinction), and...
Data from: Bats, primates, and the evolutionary origins and diversification of mammalian gammaherpesvirusesMarina Escalera-Zamudio, Edith Rojas-Anaya, Sergios-Orestis Kolokotronis, Blanca Taboada, Elizabeth Loza-Rubio, Maria L. Méndez-Ojeda, Carlos F. Arias, Nikolaus Osterrieder & Alex D. Greenwood
Gammaherpesviruses (γHVs) are generally considered host specific and to have codiverged with their hosts over millions of years. This tenet is challenged here by broad-scale phylogenetic analysis of two viral genes using the largest sample of mammalian γHVs to date, integrating for the first time bat γHV sequences available from public repositories and newly generated viral sequences from two vampire bat species (Desmodus rotundus and Diphylla ecaudata). Bat and primate viruses frequently represented deep branches...
National Autonomous University of Mexico32
University of Georgia2
Universidade Federal de Minas Gerais2
University of Toulouse2
University of Connecticut2
University of Missouri2
Smithsonian Tropical Research Institute2
Donald Danforth Plant Science Center1
Helmholtz Centre for Environmental Research1
University of the Basque Country1