A5024477012- Avian ecology and behavior
- Animal Behavior and Reproduction
- Wildlife Ecology and Conservation
- Bird parasitology and diseases
- Animal Vocal Communication and Behavior
- Wildlife Conservation and Criminology Analyses
- Animal Ecology and Behavior Studies
- Genetic diversity and population structure
- Plant and animal studies
- Amphibian and Reptile Biology
- Evolution and Paleontology Studies
- Bee Products Chemical Analysis
- Insect behavior and control techniques
- Primate Behavior and Ecology
- Rangeland and Wildlife Management
- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Research on scale insects
- Zoonotic diseases and public health
- Bat Biology and Ecology Studies
- Climate variability and models
Consejo Nacional de Investigaciones Científicas y Técnicas
2015-2021
Fundación Ciencias Exactas y Naturales
2011-2019
University of Buenos Aires
2011-2019
Xenarthrans-anteaters, sloths, and armadillos-have essential functions for ecosystem maintenance, such as insect control nutrient cycling, playing key roles engineers. Because of habitat loss fragmentation, hunting pressure, conflicts with domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 armadillos, 10 anteaters, 6 sloths. Our data set includes the families Chlamyphoridae (13), Dasypodidae (7),...
Abstract Trade represents a significant threat to many wild species and is often clandestine poorly monitored. Information on which are most prevalent in trade potentially threatened by it therefore remains fragmentary. We used 7 global data sets birds identify or groups of at particular risk assessed the extent they were congruent terms recorded trade. frequency with as basis for prevalence score that was applied all bird globally. Literature searches questionnaire surveys develop list...
Hypogeococcus pungens, a mealybug native of southern South America, is devastating cacti in Puerto Rico and threatening cactus diversity the Caribbean, potentially Central North America. The taxonomic status H. pungens controversial since it has been reported feeding not only on Cactaceae but also other plant families throughout its distribution range. However, Australia, where species had exported from Argentina to control weedy American cacti, was never found host plants than Cactaceae....
Abstract Generalist parasites exploit multiple host species at the population level, but individual parasite's strategy may be either itself a generalist or specialist pattern of use. Here, we studied relationship between availability and use in parasitism patterns Shiny Cowbird Molothrus bonariensis , avian obligate brood parasite that parasitizes an extreme range hosts. Using five microsatellite markers 1120‐bp fragment mt DNA control region, reconstructed full‐sibling groups from 359...
Genetic differentiation among shiny cowbird (Molothrus bonariensis) females that use different hosts indicates in this brood parasite, host is not random at an individual level. We tested whether there exist differences morphology and coloration between eggs of cowbirds laid the nests two hosts, chalk-browed mockingbird (Mimus saturninus) house wren (Troglodytes aedon). took morphometric measures found mockingbirds wrens analysed their using digital photography reflectance spectrometry. were...
Abstract Avian obligate brood parasites lay their eggs in nests of host species, which provide all parental care. Brood may be specialists, if they use one or a few generalists, parasitize many hosts. Within the latter, strains host‐specific females might coexist. Although preferentially host, occasionally successfully nest another species. These switching events allow colonization new hosts and expansion into areas. In this study, we analyse two parasitic cowbirds, specialist screaming...
The absence of sex dimorphism in many bird species complicates determination by direct observation, hindering sex-specific studies. Standard protocols for molecular sexing include polymerase chain reaction (PCR) amplification intron regions the Chromodomain-Helicase DNA-binding protein 1 (CHD1) gene. While several methods have been studied, their usefulness songbirds (Passeriformes) has not consistent and largely depended on target time-consuming primer-set specific optimisation available...
Tool use is taxonomically associated with high behavioural flexibility and innovativeness, its prevalence greater in primates some bird species. This association, however, not known to be causally determinant of tool-related competence since innovativeness are often observed the absence tool vice versa. For this reason, it interesting explore whether animals that can loosely categorized as outstanding, or 'intelligent' physical problem solvers, also remarkable using tools innovatively,...
Reintroductions are an important management tool for the conservation of threatened species. Personality or temperament individuals is likely to influence survival in reintroduction success released individuals. We studied behavioural traits related personality globally endangered Yellow Cardinal Gubernatrix cristata and analysed whether these were associated with outcome a programme Argentina. found that exploratory behaviour anti‐predator responses correlated Cardinals. Individuals higher...
Abstract In many cooperatively breeding species, helpers increase the success of their parents. The repayment hypothesis predicts a skewed sex-ratio towards helping sex at population level; individual level bias would in broods attended by smaller number helpers. We studied brown-and-yellow marshbird ( Pseudoleistes virescens ) during 11 seasons. found that 90% were males and they increased nestling survival, although this effect disappeared presence parasitic shiny cowbirds. Helpers...
Abstract Trade represents a significant threat to many wild species and is often clandestine poorly monitored. Information on which are most prevalent in trade, potentially threatened by it, therefore remains fragmentary. We mobilised seven global datasets birds trade identify the or groups of that might be at particular risk. These sample different parts broad spectrum but we nevertheless find statistically strong congruence between them recorded trade. Furthermore, frequency with within...