A5078386758- Animal Behavior and Reproduction
- Wildlife Ecology and Conservation
- Animal Behavior and Welfare Studies
- Bat Biology and Ecology Studies
- Physiological and biochemical adaptations
- Animal Ecology and Behavior Studies
- Neuroendocrine regulation and behavior
- Plant and animal studies
- Evolution and Paleontology Studies
- Evolutionary Psychology and Human Behavior
- Primate Behavior and Ecology
- Fish Ecology and Management Studies
- Isotope Analysis in Ecology
- Species Distribution and Climate Change
- Amphibian and Reptile Biology
- Ecology and Vegetation Dynamics Studies
- Animal Vocal Communication and Behavior
- Marine and fisheries research
- Avian ecology and behavior
- Adipose Tissue and Metabolism
- Insect and Arachnid Ecology and Behavior
- Coral and Marine Ecosystems Studies
- Stress Responses and Cortisol
- Marine animal studies overview
- Crustacean biology and ecology
Austral University of Chile
2013-2024
Pontificia Universidad Católica de Chile
2000-2004
University of Chile
1997
Social interactions among conspecifics are a fundamental and adaptively significant component of the biology numerous species. Such give rise to group living as well many complex forms cooperation conflict that occur within animal groups. Although previous conceptual models have focused on ecological causes fitness consequences variation in social interactions, recent developments endocrinology, neuroscience, molecular genetics offer exciting opportunities develop more integrated research...
The "living fossil," Dromiciops gliroides (monito del monte), is an endemic marsupial inhabiting the temperate rain forests of South America. It cavity-dependent and faces high energetic costs associated with thermoregulation during austral winter. Although D. well known for seed dispersal in forests, its ecology, behavior, long-term population dynamics have received little attention. We monitored a studied variation abundance density seasonal changes body mass condition index (BCI). In...
AbstractThe behavioral and physiological thermoregulation of three Atacama desert-dwelling Liolaemus lizards was studied compared with previous data on from other ecosystems. The thermoregulatory mechanisms the species differed those others, a consequence differences in habitat structure species. Desert have higher critical thermal minima and, contrary to expectations, lower selected body temperatures than Mediterranean environments. Results rates time constants suggest cope fast decrease...
Climate change is one of the greatest threats to biodiversity, pushing species shift their distribution ranges and making existing protected areas inadequate. Estimating potential modifications under climate are then necessary for adjusting conservation management plans; this especially true endangered species. An example issue huemul (Hippocamelus bisulcus), an endemic deer from southern Andes Range, with less than 2,000 individuals. It distributed in fragmented populations along a km...
Human-carnivore conflict has been recognized as one of the main threats to carnivore conservation.When small livestock or poultry are available, carnivores will likely prey upon them.Centinela -a rural area located in Southern Chile where chillas (Lycalopex griseus Gray) and farmers coexist-was chosen a study site.To understand potential conflicts we conducted interviews assess local knowledge, experiences, attitudes toward this fox stock management.Almost third interviewed people reported...
The matched filter hypothesis proposes that the tuning of females' auditory sensitivity matches spectral energy distribution males' signals. Such correspondence is expected to arise over evolutionary time, as it promotes conspecific information transfer and reduces interference from other sound sources. Our main objective was determine between acoustic female frogs Eupsophus roseus characteristics advertisement vocalizations produced by males. We also aimed how related background noise....
Summary Alternative morphotypes have been reported less frequently in females than males. An exception to this rule is the gradient of phenotypical masculinization some female mammals, which feminized and masculinized represent two opposite ends along gradient. These differences originate during prenatal development as consequence maternal effects. Feminized differ several traits, including morphological, physiological, behavioural reproductive traits. Differences previously traits between...
Abstract Until a few years ago, the “monito del monte” ( Dromiciops gliroides ) was considered sole surviving species of Microbiotheria, sister group Australidelphia (Australian marsupials). However, recent identification new relegated to northern range bozinovici and newly discovered populations beyond known limits for geographic demands studies in extreme locations. In this report, we describe northernmost population D . at high Andean location (Reserva Nacional Altos de Lircay [RNAL],...
Abstract Determination of fecal steroid metabolites is a noninvasive technique that characterizes the physiological state organisms without and psychological stress handling. Although this has many applications in study wildlife and/or captive animals necessity capturing individuals, it requires species‐specific validation before use. A complete includes an analytical one. In latter changes hormone are induced by previous manipulations respective plasma hormones. Here we validated method for...
In the late 1990s and early 2000s it was recognized that behavioral ecologists needed to study sociality of caviomorph rodents (New World hystricognaths) before generalizations about rodent could be made. Researchers identified specific problems facing individuals interested in sociality, including a lack information on proximate mechanisms role social environment development, geographical or intraspecific variation systems. Since then researchers have described systems many previously...
During periods of cold, small endotherms depend on a continuous supply food and energy to maintain euthermic body temperature (T(b)), which can be challenging if is limited. In these conditions, energy-saving strategies are critical reduce the energetic requirements for survival. Mammals from temperate regions show wide arrange such strategies, including torpor huddling. Here we provide quantitative description thermoregulatory capacities in Dromiciops gliroides, Microbiotherid marsupial...
Ecological monitoring programs are fundamental to following natural-system populational trends. Drones a new key animal monitoring, presenting different benefits but two basic re-strictions First, the increase of information requires high capacity storage and, second, time invested in data analysis. We present protocol develop an automatic object recognizer minimize analysis and optimize storage. conducted this study at Cruces River, Valdivia, Chile, using Phantom 3 Advanced drone with...