A5056037585- Turtle Biology and Conservation
- Wildlife Conservation and Criminology Analyses
- Animal Behavior and Reproduction
- Avian ecology and behavior
- Rabies epidemiology and control
- Social Issues and Policies in Latin America
- Amphibian and Reptile Biology
- Physiological and biochemical adaptations
- Animal Ecology and Behavior Studies
- Marine Ecology and Invasive Species
- Ichthyology and Marine Biology
- Species Distribution and Climate Change
- Ecology and Vegetation Dynamics Studies
The University of Queensland
2023-2024
Sea Turtle Conservancy
2020-2023
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...
Trends in abundance of different life stages present important opportunities to manage the conservation threatened species. For marine turtles, most trend assessments are based on long-term monitoring nesting aggregations, which provides critical information rookery dynamics across years. Tortuguero, Costa Rica, is largest colony green turtle Chelonia mydas Atlantic. Here we an updated annual clutch spanning over 50 yr at Tortuguero. We conducted weekly censuses recording counts and used a...
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,...
Anthropogenic pressures threaten biodiversity, necessitating conservation actions founded on robust ecological models. However, prevailing models inadequately capture the spatiotemporal variation in environmental faced by species with high mobility or complex life histories, as data are often aggregated across species' histories spatial distributions. We highlight limitations of static for dynamic and incorporate history distributions stressors into a trait-based vulnerability impact model....
Understanding the timing of vitellogenesis is essential for identifying threats to reproductive success endangered oviparous vertebrate species, such as sea turtles. We measured concentrations testosterone (T) and vitellogenin (VTG) in green turtles (Chelonia mydas) nesting at Tortuguero, Costa Rica, biomarkers ovarian development. Testosterone concentration increased from first second month VTG third week sampling. These results show that Tortuguero were still producing both early into...
Costa Rica is considered a hot spot for biodiversity and wildlife conservation in Central America, sea turtles are good example of this. Largely distributed along both the Caribbean Pacific coast, adult females five seven extant turtle species select beaches on coasts as their breeding sites. Although Green Sea Turtles (Chelonia mydas), Leatherback (Dermochelys coriacea), Hawksbill (Eretmochelys imbricata), Olive Ridley (Lepidochelys olivacea) have been extensively studied Rica, little...
Although hybridization processes in the Cheloniidae family have been documented since 19th century, detailed reports of these occurrences are scarce. Therefore, record a between Green Sea Turtles (Chelonia mydas) and Hawksbill (Eretmochelys imbricata) signifies an important event. In this study, we report third known C. mydas E. imbricata Caribbean Sea. Tortuguero, Costa Rica, marked monitored several nests from both species during 2020 nesting season. Offspring two clutches showed...