A5023730913- Wildlife Conservation and Criminology Analyses
- Wildlife Ecology and Conservation
- Avian ecology and behavior
- Bird parasitology and diseases
- Plant and animal studies
- Animal Ecology and Behavior Studies
- Animal Behavior and Reproduction
- Genetic diversity and population structure
- Insect and Pesticide Research
- Crime Patterns and Interventions
- Species Distribution and Climate Change
- Wildlife-Road Interactions and Conservation
- Identification and Quantification in Food
- Fire effects on ecosystems
- Insect and Arachnid Ecology and Behavior
- Viral Infections and Vectors
- Animal Nutrition and Physiology
- Rabies epidemiology and control
- Vector-borne infectious diseases
- Forest Insect Ecology and Management
- Genomics and Phylogenetic Studies
- Ecology and Vegetation Dynamics Studies
- Travel-related health issues
- Tourism, Volunteerism, and Development
- Primate Behavior and Ecology
Texas A&M University
2014-2024
University of California, Santa Barbara
2023
Texas A&M Health Science Center
2021-2022
Texas A&M University System
2020
University of Puerto Rico at Humacao
2018
University of Puerto Rico at Río Piedras
2018
Department of Natural and Environmental Resources
2018
Amazon National University of Madre de Dios
2013
Universidad Nacional Agraria La Molina
2010
Duke University
2000-2009
Parrots that inhabit tropical lowland forests are difficult to study, poorly known, and little information is available on their nesting habits, making analysis of community-wide patterns difficult. I present records for 15 species psittacids co-occur in southeastern Peru. The psittacid breeding season this area lasted from June April, with smaller earlier than larger species. Why bred uncertain, though it may be related interspecific competition nest sites or variations food availability....
ABSTRACT Geophagy, the intentional ingestion of soil, is a widespread phenomenon whose function still debated. Recent studies suggest that consumed soils adsorb dietary toxins and provide sodium. However, quantification soil choice has been absent from most studies, prohibiting direct comparison use characteristics. To determine correlates among bird characteristics, we analyze physical structure, mineral composition, alkaloid adsorption (14 characteristics in total) for 22 samples riverbank...
Data deposition to NCBI Genomes This Whole Genome Shotgun project has been deposited at DDBJ/EMBL/GenBank under the accession AMXX00000000 (SMACv1.0, unscaffolded genome assembly). The version described in this paper is first (AMXX01000000). scaffolded assembly (SMACv1.1) AOUJ00000000, and also (AOUJ01000000). Strong biological interest traits such as acquisition utilization of speech, cognitive abilities, longevity catalyzed two next-generation sequencing platforms provide first-draft de...
ABSTRACT We observed ten species of psittacids, three columbids, and two cracids consuming soil from banks the lower Tambopata River in southeastern Peru. Our study used observations analyses eight exposed riverbank sections to test predictions models determine why birds consume clay: mechanical aid digestion (grit), adsorption dietary toxins, mineral supplementation. found that preferred soils were deficient particles large enough breakdown food help digestion. Percent clay content cation...
Geophagy is well known among some Neotropical parrots. The clay apparently adsorbs dietary toxins and/or provides supplemental nutrients. We used location data and 23 environmental layers to develop a predictive model of claylick distribution using Maxent software. related species characteristics use examined how parrot assemblages claylicks changed with distance from the centre distribution. Fifty‐two were reported an area ca 4 million km 2 but over 50% restricted 35 000 region southeast...
Study of animal movements is key for understanding their ecology and facilitating conservation. The Argos satellite system a valuable tool tracking species which move long distances, inhabit remote areas, are otherwise difficult to track with traditional VHF telemetry not suitable GPS systems. Previous research has raised doubts about the magnitude position errors quoted by service provider CLS. In addition, no peer-reviewed publications have evaluated usefulness CLS supplied error ellipses...
Abstract We identified species‐ and community‐level dietary characteristics for a species‐rich Amazonian parrot assemblage to determine relationships among metrics use of geophagy sites. Previous studies suggest that soil is consumed at sites in this region mainly supplement sodium. accumulated 1400 feeding records 16 species over 2 yr found seeds, flowers, fruit pulp featured prominently diets, while bark, insects, lichen were small quantities. Food availability across 1819 trees was...
Geophagy is widespread and well documented for mammals, but avian geophagy has only recently become the subject of serious scientific investigation. I analyzed data from 606 mornings observations at a large site or "clay lick" in southwestern Amazon Basin to examine effects weather on bird lick use. Birds used clay 94% without precipitation fog. Parrots dominated both numbers species (17) individuals (>99%). Weather conditions were significantly correlated with total use: there was greater...
I studied cavity‐nesting birds in an undisturbed site lowland Peru to determine the relative roles of competition and predation favoring termitarium nesting over tree cavity nesting. Occupancy rates both nest boxes natural cavities near 2% suggest that for is not use termitaria. Artificial nests bird termitaria suffer significantly lower than similar old showing cavities. Bird newly excavated also show older suggesting age more important substrate (tree or termitaria) per se . This study...
We studied the diet and foraging ecology of a community six psittacines in western Costa Rica. All had varied with clear seasonal changes preferred food items, mostly due to plant phenology. There was significant relationship between parrot mass types: larger-bodied parrots consumed more seeds smaller-bodied parakeets fruit pulp. Leaves, bark, lichen were also by most psittacines. Most species dry season when availability at its peak. Levins' niche breath showed varying levels specialization...
ABSTRACT Soils from 18 parrot collpas (‘clay licks’) in southeastern Peru averaged four times more available sodium than uneaten control soils. Collpa soils contained marginally clay sites and content was uncorrelated with content. Parrots may select ingest based on
Wild populations of northern bobwhites (Colinus virginianus; hereafter bobwhite) have declined across nearly all their U.S. range, and despite importance as an experimental wildlife model for ecotoxicology studies, no bobwhite draft genome assembly currently exists. Herein, we present a de novo with annotation, comparative analyses including genome-wide divergence the chicken (Gallus gallus) zebra finch (Taeniopygia guttata) genomes, coalescent modeling to reconstruct demographic history...
Nest site selection by birds is a critically important life history trait as competition for suitable sites can be intense, and because are at their most vulnerable to predators during nesting. Previous studies show that the clutch size nestling period evolve in response nest predation, respectively. This provides opportunity study relative contribution of predation evolution nesting niche. Using previously published phylogenies parrots trogons, I found evidence least 13 independent...
ABSTRACT Competition for nest sites by sympatric species can lead to resource partitioning among species. We examined the of cavity resources Red-and-green Macaws (Ara chloropterus), Blue-and-yellow (A. ararauna), and Scarlet macao) in lowland forest southeast Peru. nested primarily cavities emergent Dipteryx trees, predominantly palm snags. had broadest nesting niche, their use overlapped that other two These differences may be related size, with largest three (90 cm long, 1050–1320 g),...