A5074950086- Turtle Biology and Conservation
- Wildlife Ecology and Conservation
- Soil Carbon and Nitrogen Dynamics
- Amphibian and Reptile Biology
- Avian ecology and behavior
- Conservation, Biodiversity, and Resource Management
- Rangeland Management and Livestock Ecology
- Soil erosion and sediment transport
- Species Distribution and Climate Change
- Agriculture, Land Use, Rural Development
- Ichthyology and Marine Biology
- Marine animal studies overview
- Land Use and Ecosystem Services
- Physiological and biochemical adaptations
- Fish Ecology and Management Studies
- Bird parasitology and diseases
- Ecology and Vegetation Dynamics Studies
- Soil and Water Nutrient Dynamics
- Tree Root and Stability Studies
- Botany and Plant Ecology Studies
- Bat Biology and Ecology Studies
- Marine and fisheries research
- Wildlife Conservation and Criminology Analyses
- Forest Management and Policy
- Plant Water Relations and Carbon Dynamics
Cornell University
2015-2024
Louisiana Department of Natural Resources
2001-2023
New York State College of Agriculture & Life Sciences
2017-2023
Worcester State University
2023
NOAA National Marine Fisheries Service Southeast Fisheries Science Center
2008
NOAA National Marine Fisheries Service
2008
Buffalo State University
1982
Temperature determines the sex of hatchling green turtles ( Chelonia mydas ) produced from eggs incubated in a beach hatchery under different temperature regimes. Cold and cool nests (< 28°C) almost no females (0 to 10 percent) warm, thermostable (> 29.5°C) all (95 100 percent). A few intersex hatchlings were at lower temperatures. Since little concern is given temperatures which sea turtle are artificial hatcheries, present conservation practices may be producing male, female, or even...
Activity levels throughout the year and movement patterns of individually marked slider turtles (Pseudemys scripta) were studied in three aquatic systems on Savannah River Plant South Carolina. An hypothesis was proposed to explain differential movements activity sexes, based assumption that reproductive strategies modify activity. Males more active than females early spring late autumn. Significantly males exhibited both terrestrial >1 km. In addition, longest made exclusively by males....
Interactions with fisheries are believed to be a major cause of mortality for adult leatherback turtles ( Dermochelys coriacea ), which is particular concern in the Pacific Ocean, where they have been rapidly declining. In order identify these interactions occurring and how may reduced, it essential first understand movements behavior turtles. There two regional nesting populations East (EP) West (WP), comprising multiple sites. We synthesized tracking data from compared their movement...
While telemetry is an invaluable tool for tracking animal movement patterns, the data generated by this technique often challenging to interpret. Here, we addressed issue developing a novel method, based on changepoint analysis, which incorporated both horizontal and vertical metrics compared output that from switching state‐space model (SSSM) categorized behavior metrics. We deployed 20 satellite transmitters postnesting loggerhead turtles at Rethymno, Crete, Greece between 2010 2011...
Physiology, environment and life history demands interact to influence marine turtle bioenergetics activity. However, metabolism diving behavior of free-swimming turtles have not been measured simultaneously. Using doubly labeled water, we obtained the first field metabolic rates (FMRs; 0.20-0.74 W kg(-1)) water fluxes (16-30% TBW day(-1), where TBW=total body water) for free-ranging combined these data with dive information from electronic archival tags investigate activity reproductive...
Fisheries bycatch is a critical source of mortality for rapidly declining populations leatherback turtles, Dermochelys coriacea. We integrated use-intensity distributions 135 satellite-tracked adult turtles with longline fishing effort to estimate predicted risk over space and time in the Pacific Ocean. Areas did not overlap eastern western nesting populations, warranting their consideration as distinct management units respect fisheries bycatch. For we identified several areas high north...
Bees are the primary pollinators of flowering plants in almost all ecosystems. Worldwide declines bee populations have raised awareness about importance their ecological role maintaining ecosystem functioning. The naturally strong philopatric behavior that some species show can be detrimental to population viability through increased probability inbreeding. Furthermore, found human-altered landscapes, such as urban areas, experience lower levels gene flow and effective sizes, increasing...
Pacific sailfish (Istiophorus platypterus) are the most abundant marlin in Central American waters and a species of socioeconomic ecological importance with sport fishing generating millions dollars (USD) thousands jobs each year. Concurrently, caught as bycatch purse seine longline gear potentially threatening stability population sportfishing community. In this study, Wildlife Computers Mk10 satellite transmitters were deployed on ( n = 6) which relayed real time Argos locations...
Cold-stunned sea turtles, both moribund and dead as a result of hypothermia, were collected along the shorelines Long Island, New York, during three consecutive winters. A total 130 juvenile Lepidochelys kempii, Caretta caretta, Chelonia mydas was collected. kempii represented 75% all individuals encountered. The size distribution L. (straight-line carapace length 22.5 cm to 37.6 cm; i = 29.4 cm, SD 3.1) unlike any other assemblage reported within species' range. regular occurrence...
Sea turtles are vulnerable to climate change impacts in both their terrestrial (nesting beach) and oceanic habitats. From 1982 2012, air sea surface temperatures at major high use foraging nesting regions (n = 5) of loggerhead (Caretta caretta) Greece have steadily increased. Here, we update the established relationships between temperature data from Zakynthos (latitude: 37.7°N), a beach, while also expanding these analyses include precipitation additional two other key beaches Greece:...
Previous studies have shown that the world's largest reptile - leatherback turtle Dermochelys coriacea conducts flexible foraging migrations can cover thousands of kilometres between nesting sites and distant areas. The vast distances may be travelled by migrating turtles greatly complicated conservation efforts for this species worldwide. However, we demonstrate, using a combination satellite telemetry stable isotope analysis, approximately half leatherbacks from an important rookery in...
Underwater sound was recorded in one of the major coastal foraging areas for juvenile sea turtles Peconic Bay Estuary system Long Island, New York. The recording season underwater environment coincided with turtle activity an inshore area where there is considerable boating and recreational activity, especially during summer between Independence Day Labor Day. Within range hearing, average noise pressure reached 110 dB periods high human diminished proportionally, down to 80 dB, decreasing...
Abstract Forest degradation is arguably the greatest threat to biodiversity, ecosystem services, and rural livelihoods. Therefore, increasing understanding of how organisms respond essential for management conservation planning. We were motivated by need rapid practical analytical tools assess influence on biodiversity system state in areas subject environmental change. compared bird community composition size managed (ejido, i.e., communally owned lands) unmanaged (national park) forests...
Loggerhead ( Caretta caretta ) and leatherback Dermochelys coriacea sea turtle distributions movements in offshore waters of the western North Atlantic are not well understood despite continued efforts to monitor, survey, observe them. turtles listed as endangered by World Conservation Union, thus anthropogenic mortality these species, including fishing, is elevated interest. This study quantifies spatial temporal patterns bycatch identify potential processes influencing their locations. A...