8 Works

Bat phylogenetic responses to regenerating Amazonian forests

Fábio Z. Farneda, Ricardo Rocha, Sabhrina Gita Aninta, Adrià López-Baucells, Erica M. Sampaio, Jorge M. Palmeirim, Paulo E. D. Bobrowiec, Cristian S. Dambros & Christoph F. J. Meyer
1. Throughout the tropics, regenerating secondary forests occupy vast areas previously cleared for agriculture and cattle ranching. However, despite the importance of regenerating forests in mitigating the pervasive negative consequences of forest loss and fragmentation on forest-associated biodiversity, longitudinal studies on species’ phylogenetic responses to matrix regeneration are rare. 2. We surveyed bats in continuous primary forest, primary forest fragments and in the regenerating secondary forest matrix of a whole-ecosystem Amazonian fragmentation experiment, ~15 and...

Evolutionary tradeoffs between male secondary sexual traits revealed by a phylogeny of the hyperdiverse tribe Eumaeini (Lepidoptera: Lycaenidae)

Wendy A. Valencia-Montoya, Tiago B. Quental, João Filipe R. Tonini, Gerard Talavera, James D. Crall, Gerardo Lamas, Robert C. Busby, Ana Paula S. Carvalho, Ana B. Morais, Nicolás Oliveira Mega, Helena Piccoli Romanowski, Marjorie A. Liénard, Shayla Salzman, Melissa R. L. Whitaker, Akito Y. Kawahara, David J. Lohman, Robert K. Robbins & Naomi E. Pierce
Male butterflies in the hyperdiverse tribe Eumaeini possess an unusually complex and diverse repertoire of secondary sexual characteristics involved in pheromone production and dissemination. Maintaining multiple sexually selected traits is likely to be metabolically costly, potentially resulting in trade-offs in the evolution of male signals. However, a phylogenetic framework to test hypotheses regarding the evolution and maintenance of male sexual traits in Eumaeini has been lacking. Here, we infer a comprehensive, time-calibrated phylogeny from 379...

Effect of productivity on community size explains the latitudinal diversity gradient of South American small mammals

Felipe Cerezer, Nilton Cáceres & Cristian Dambros
Although many studies have shown that species richness increases from high to low latitudes (the latitudinal diversity gradient), the mechanisms responsible for generating and maintaining higher species richness in the tropics remain intensely debated. Here, we investigate how the effects of temperature on speciation rates (kinetic effects) and the effects of productivity on community size (chemical effects) explain the latitudinal diversity gradient of South American small mammals. We implemented Bayesian models that integrate processes from...

Data from: Flower consumption, ambient temperature and rainfall modulate drinking behavior in a folivorous-frugivorous arboreal mammal

Óscar M. Chaves, Vanessa B. Fortes, Gabriela P. Hass, Renata B. Azevedo, Kathryn E. Stoner & Júlio César Bicca-Marques
In these datasets we provided information on the drinking behavior in 14 wild groups of brown howler monkeys (Alouatta guariba clamitans) inhabiting small, medium, and large Atlantic Forest fragments in southern Brazil. We provided two datasets: (1) full data on the drinking behavior of the 14 study groups, and (2) the dataset used to run the GLMMs described in the main manuscript. Overall, we found a wide variation in the mean rate of drinking among...

Data from: An early-diverging procolophonid from the lowermost Triassic of South America and the origins of herbivory in Procolophonoidea

Felipe Pinheiro, Eduardo Silva-Neves & Átila Da-Rosa
The Procolophonoidea was the only parareptile clade to survive the end-Permian mass extinction, experiencing an important adaptive radiation during the Triassic. The flourishing of procolophonoid lineages in highly stressful post-extinction environments may be, at least in part, a result of their early adaptations to herbivory, which would eventually become the commonest feeding strategy in later representatives of the group. Although procolophonoids are comparatively diverse in the South African Lystrosaurus Assemblage Zone, only the globally widespread...

Anatomical character matrix of early ornithischian dinosaurs

Matthew Baron, Rodrigo Muller, Mauricio Garcia & David Norman
Anatomical character matrix for the project "Taxonomic, palaeobiological and evolutionary implications of a new phylogenetic hypothesis for Ornithischia (Archosauria: Dinosauria)" - this dataset contains revised/updated anatomical character scores for most early (Middle Triassic - Early Jurassic) dinosauriforms and expands upon a number of previous studies in terms fo sampling. It contains a broader sample of early ornithischian dinosaur taxa then previous studies, for example the early thyreophroan Scelidosaurus harrisonii, the early neornithischians Hexinlusaurus multidens and...

Sizes and environmental variables to peccaries

Carla D. Hendges, Bruce D. Patterson & Nilton C. Cáceres
Aim: Bergmann's rule is an ecogeographical rule that describes a negative relationship between body size and temperature. Here, we used a multivariate measure of skull size (centroid size) as a proxy for body size to test the influence of temperature, precipitation, elevation, human influence and competition on size in Dicotyles tajacu and Tayassu pecari. Location: American tropics and sub-tropics. Taxon: Tayassuidae. Methods: Using geometric morphometric methods, we measured 426 adult skulls of both peccary species...

Function of a multimodal signal: a multiple hypothesis test using a robot frog

Vinícius Matheus Caldart, Maurício Beux Dos Santos & Glauco Machado
1. Multimodal communication may evolve because different signals may convey information about the signaller (content-based selection), increase efficacy of signal processing or transmission through the environment (efficacy-based selection), or modify the production of a signal or the receiver’s response to it (inter-signal interaction selection). 2. To understand the function of a multimodal signal (aggressive calls + toe flags) emitted by males of the frog Crossodactylus schmidti during territorial contests, we tested two hypotheses related to...

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  • Universidade Federal de Santa Maria
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  • Field Museum of Natural History
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  • Botanical Institute of Barcelona
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