9 Works

Data from: Are tree plantations promoting homogenization of mammal assemblages between regions with contrasting environments?

María Eugenia Iezzi, Carlos De Angelo, Paula Cruz, Diego Varela, Sebastián Cirignoli & Mario S. Di Bitetti
Aim The expansion of agriculture is promoting the loss of natural environments and their biotic homogenization. We aimed at understanding whether the replacement of forests and grasslands by tree plantations leads to biotic homogenization of mammal assemblages of two contrasting Neotropical ecoregions or if dispersal or environmental limitations keep their original assemblages clearly differentiated. Location Argentina, Upper Paraná Atlantic Forest, Southern Cone Mesopotamian Savannas and Iberá marshes Taxon Mammals Methods We conducted two camera-trap surveys,...

Song parameters, repertoire size and song sharing within and across age classes in the saffron finch

Maria Juliana Benitez Saldivar, Carolina Isabel Miño & Viviana Massoni
Birds sing mostly to attract partners or to defend territories or resources. In relation to the first function, song can vary with age if older experienced males signal their quality through their vocal output. Regarding the second function, song can also vary with age if singing behavior helps mediate social interactions through repertoire sharing with neighbors. Here, we investigate whether song parameters change with age, and in which direction, in saffron finches Sicalis flaveola pelzelni,...

Data from: Cats under cover: habitat models indicate a high dependency on woodlands by Atlantic Forest felids

Paula Cruz, Carlos De Angelo, Julia Martínez Pardo, María Eugenia Iezzi, Diego Varela, Mario S. Di Bitetti & Agustín Paviolo
Four Neotropical small and medium felids—the ocelot, jaguarundi, margay and southern tiger cat—have overlapping geographic distributions in the endangered Atlantic Forest. Local studies show that these felids avoid areas with high human impact, but the three smaller ones use human-modified areas more frequently than do ocelots. To understand how landscape changes affect the habitat distribution of these four felids in the Atlantic Forest of Argentina, we used maximum entropy models to analyze the effect of...

Data from: A comprehensive analysis of autocorrelation and bias in home range estimation

Michael J. Noonan, Marlee A. Tucker, Christen H. Fleming, Tom S. Akre, Susan C. Alberts, Abdullahi H. Ali, Jeanne Altmann, Pamela C. Antunes, Jerrold L. Belant, Dean Beyer, Niels Blaum, Katrin Böhning-Gaese, , Rogerio De Paula Cunha, Jasja Dekker, Jonathan Drescher-Lehman, Nina Farwig, Claudia Fichtel, Christina Fischer, Adam T. Ford, Jacob R. Goheen, René Janssen, Florian Jeltsch, Matthew Kauffman, Peter M. Kappeler … & Justin M. Calabrese
Home range estimation is routine practice in ecological research. While advances in animal tracking technology have increased our capacity to collect data to support home range analysis, these same advances have also resulted in increasingly autocorrelated data. Consequently, the question of which home range estimator to use on modern, highly autocorrelated tracking data remains open. This question is particularly relevant given that most estimators assume independently sampled data. Here, we provide a comprehensive evaluation of...

Data from: Jaguar Movement Database: a GPS-based movement dataset of an apex predator in the Neotropics

Ronaldo G. Morato, Jeffrey J. Thompson, Agustín Paviolo, J. Antonio De La Torre, Fernando Lima, , Rogério C. Paula, , Leandro Silveira, Daniel L.Z. Kantek, Emiliano E. Ramalho, Louise Maranhão, Mario Haberfeld, Denis A. Sana, Rodrigo A. Medellin, Eduardo Carrillo, Victor Montalvo, Octavio Monroy-Vilchis, Paula Cruz, Anah Tereza Jácomo, Natalia M. Torres, Giselle B. Alves, Ivonne Cassaigne, Ron Thompson, Carolina Saenz-Bolanos … & Joares A. May
The field of movement ecology has rapidly grown during the last decade, with important advancements in tracking devices and analytical tools that have provided unprecedented insights into where, when, and why species move across a landscape. Although there has been an increasing emphasis on making animal movement data publicly available, there has also been a conspicuous dearth in the availability of such data on large carnivores. Globally, large predators are of conservation concern. However, due...

Data from: Inter-individual spacing affects the finder’s share in ring-tailed coatis (Nasua nasua)

Ben Hirsch, Erica Malpass & Yamil Di Blanco
Social foraging models are often used to explain how group size can affect an individual’s food intake rate and foraging strategies. The proportion of food eaten before the arrival of conspecifics, the finder’s share, is hypothesized to play a major role in shaping group geometry, foraging strategy, and feeding competition. The variables which affect the finder’s share in ring-tailed coatis were tested using a series of food trials. The number of grapes in the food...

Data from: Description and phylogenetic position of a new species of Oreobates (Anura: Craugastoridae) from northwestern Argentina

Martín O. Pereyra, Darío E. Cardozo, Jorge Baldo & Diego Baldo
We describe a new species of Oreobates from Jujuy, Argentina. The new species is clearly diagnosable from other species of Oreobates by a combination of morphological characters and supported by molecular evidence (genetic distance and phylogenetic analysis). We also provide taxonomic comments about O. discoidalis and O. barituensis, emphasizing the need for an exhaustive revision of these species

Data from: A dark scenario for Cerrado plant species: effects of future climate, land use and protected areas ineffectiveness

Santiago José Elías Velazco, Fabricio Villalobos, Franklin Galvão & Paulo De Marco Júnior
Aim: The anthropogenic climate change and land-use change are considered two of the main factors that are altering biodiversity at the global scale. An evaluation that combined both factors can be relevant to detect which species could be the most vulnerable and reveal the regions of highest stability or susceptibility to biodiversity. We aimed to (i) assess the effect of climate change and land-use on the distribution of Cerrado plant species for different countries where...

Woodpeckers and other excavators maintain the diversity of cavity-nesting vertebrates

M. Kurtis Trzcinski, Kristina Cockle, Andrea Norris, Max Edworthy, Karen Wiebe & Kathy Martin
Woodpeckers and other excavators create most of the holes used by secondary tree-cavity nesting vertebrates (SCNs) in North American temperate mixedwood forests, but the degree to which excavators release SCNs from nest-site limitation is debated. Our goal was to quantify how excavators maintain the diversity and abundance of secondary cavity nesters in a temperate forest through the creation of tree cavities. We examined the short- and long-term (legacy) effects of excavators (principally woodpeckers, but also...

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  • Instituto de Biología Subtropical
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  • National University of Río Cuarto
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  • Max Planck Institute for Ornithology
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  • Bernardino Rivadavia Natural Sciences Museum
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  • Universidade Federal de Goiás
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