A5005284875- Turtle Biology and Conservation
- Amphibian and Reptile Biology
- Wildlife Conservation and Criminology Analyses
- Avian ecology and behavior
- Animal Behavior and Reproduction
- Reproductive biology and impacts on aquatic species
- Rabies epidemiology and control
- Physiological and biochemical adaptations
- Regulation of Appetite and Obesity
- Pharmacological Effects and Assays
- Ichthyology and Marine Biology
- Stress Responses and Cortisol
- Muscle metabolism and nutrition
- Bird parasitology and diseases
- Diet and metabolism studies
- Hormonal Regulation and Hypertension
- Social Issues and Policies in Latin America
- Coral and Marine Ecosystems Studies
- Environmental and Cultural Studies in Latin America and Beyond
- Advanced Malware Detection Techniques
- Eating Disorders and Behaviors
- Hormonal and reproductive studies
- Web Data Mining and Analysis
- Marine animal studies overview
- Coleoptera: Cerambycidae studies
Sea Turtle Conservancy
2019-2024
Southeastern Louisiana University
2015-2024
The University of Texas Rio Grande Valley
2024
University of Zulia
2020
Escuela Superior Politecnica del Litoral
2020
University of Mazandaran
2011
Texas Tech University
2011
Texas Tech University Health Sciences Center
2011
Universidad Nacional
2009
University of Michigan–Ann Arbor
2001
Abstract Sea turtles are vulnerable to climate change since their reproductive output is influenced by incubating temperatures, with warmer temperatures causing lower hatching success and increased feminization of embryos. Their ability cope projected increases in ambient will depend on capacity adapt shifts climatic regimes. Here, we assessed the extent which phenological could mitigate impacts from (from 1.5 3°C air 1.4 2.3°C sea surface 2100 at our sites) four species turtles, under a...
Several studies have suggested that significant embryo mortality is caused by microbes, while high microbial loads are generated the decomposition of eggs broken later nesting turtles. This occurs commonly when density high, especially during mass events (arribadas). However, no previous research has directly quantified abundance and associated effects on sea turtle hatching success at a beach. The aim this study was to test hypothesis in olive ridley nest sand affects Ostional, Costa Rica....
The olive ridley sea turtle (Lepidochelys olivacea), a species listed by the International Union for Conservation of Nature as vulnerable, is characterized its mass-nesting behavior, also known arribada. For decades, this phenomenon has facilitated utilization coastal communities, much it illegally. At Ostional beach, Costa Rica, community-based egg-harvest program operates legally to generate important income community while promoting protection nesting assemblage. However, date, no...
Oceanic dispersal characterizes the early juvenile life‐stages of numerous marine species conservation concern. This stage may be a ‘critical period’ for many species, playing an overriding role in population dynamics. Often, relatively little information is available on their distribution during this period, limiting effectiveness efforts to understand environmental and anthropogenic impacts these species. Here we present simple model predict annual variation abundance oceanic‐stage sea...
Although the olive ridley sea turtle (Lepidochelys olivacea) is most abundant in world, species has exhibited a significant decrease size of arribadas at Nancite Beach, Costa Rica, since its discovery 1970. In present study, we compiled data on number nesting females per arribada from previous authors for period 1971–1997 and collected new using total count methodology strip transect method during 1999–2007. We used generalized additive models to assess trend 1971–2007. Our indicate...
Sea turtle hatching success at mass nesting beaches is typically lower than solitary beaches, presumably due in part to high rates of microbial metabolism resulting from the large input organic matter eggs. Therefore, we tested hypothesis that varies across areas beach conjunction with differences physical nest environment and abundance situ olive ridley sea nests Ostional, Costa Rica. We marked natural high-density, low-density, tidal-wash monitored clutch pO 2 temperature throughout...
Amylin is a pancreatic β-cell peptide that facilitates the regulation of blood glucose concentration by inhibiting release glucagon and modulating gastric emptying. Prolonged exercise may alter amylin aid in maintenance concentration; however, no studies have investigated effects prolonged on amylin. Purpose: This study aimed to determine 90 min treadmill other glucoregulatory hormone responses postprandial state. Methods: Eight young healthy males completed preliminary trial for V˙O2max...
Vitellogenin is the egg yolk precursor protein produced by oviparous vertebrates. As endogenous estrogen increases during early reproductive activity, hepatic production of vitellogenin induced and assumed to be complete in female sea turtles before first nesting event. Until present study, innate has not been described free-ranging turtles. Our study describes circulating concentrations loggerhead ( Caretta caretta ) from Northwest Atlantic Ocean. We collected blood samples juveniles adults...
Estimates of illegal wildlife trade vary significantly and are often based on incomplete datasets, inferences from CITES permits or customs seizures. As a result, annual global estimates can by several billions US dollars. Translating these figures into species extraction rates is equally challenging, estimating take accurately not achievable for many species. Due to their nesting strategies that allow census data collection, sea turtles offer an exception. On the Caribbean coast Costa Rica,...
Ostional Beach, Costa Rica, supports a large mass nesting (arribada) aggregation of Olive Ridley Sea Turtles (Lepidochelys olivacea). A number egg clutches is lost to harvest and nest destruction by females after every arribada. Accordingly, the purpose our study was generate estimates net left incubating from clutch densities with use quadrat methodology, compare these data population resulting strip transect in time methodology that currently applied. After conclusion each arribada, we...
Sea turtles are among several hundred species whose sex is determined by incubation conditions during critical developmental periods. Consequently, these marine reptiles may be vulnerable to global climate change, and under the assumption of continued warming, numerous studies pose dire predictions for future populations based primarily on hatchling ratio data. Alternatively, as long-lived that take decades reach maturity, without inherent coping mechanisms such sea could not have persisted...
Abstract Endangered leatherback sea turtles ( Dermochelys coriacea ) are wide‐ranging, long‐distance migrants whose movements often associated with environmental cues. We examined the spatial distribution and habitat use for 33 satellite‐tracked leatherbacks from nesting beaches on Caribbean coast of Costa Rica Panama 2004 to 2018, an important population Northwest Atlantic Distinct Population Segment. Tracking revealed two distinct regions, Gulf Mexico (GoM, n = 18) North Ocean (NAO, 15)....
Vitellogenin (VTG), an egg yolk precursor, is abnormally produced by male and juvenile oviparous species after exposure to estrogens. Plasma VTG in loggerhead sea turtles (Caretta caretta) helped us understand their reproductive maturation investigate it as a biomarker of contaminant exposure. The presence was screened plasma from 404 loggerheads the northwestern Atlantic Ocean using freshwater turtle antibody western blots. concentrations were semiquantified band intensities calibrated...