A5024803417- Wildlife Ecology and Conservation
- Amphibian and Reptile Biology
- Animal Ecology and Behavior Studies
- Sperm and Testicular Function
- Animal Behavior and Reproduction
- Reproductive Physiology in Livestock
- Reproductive biology and impacts on aquatic species
- Yersinia bacterium, plague, ectoparasites research
- Gastrointestinal motility and disorders
- Turtle Biology and Conservation
- Diet, Metabolism, and Disease
- Fish Ecology and Management Studies
- Reproductive System and Pregnancy
- Animal Behavior and Welfare Studies
- Species Distribution and Climate Change
- Medical Imaging and Pathology Studies
- Aquaculture Nutrition and Growth
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Birth, Development, and Health
- Marine animal studies overview
- Peptidase Inhibition and Analysis
- Magnesium in Health and Disease
- Biochemical and Structural Characterization
- Bacterial biofilms and quorum sensing
- Bone and Dental Protein Studies
University of Exeter
2025
Memphis Zoo
2013-2024
University of Veterinary Medicine Vienna
2024
University of Tampa
2019
Utah State University
2015
Northwell Health
1989-2010
University of California, Davis
2010
Rabin Medical Center
2010
Albert Einstein College of Medicine
2010
Feinstein Institute for Medical Research
2010
Rationale : The ubiquitin proteasome system (UPS) becomes dysfunctional as a result of ischemia/reperfusion (I/R), which may lead to dysregulation signaling pathways. Ischemic preconditioning (IPC) prevent by preventing UPS dysfunction through inhibition oxidative damage. Objective Examine the hypothesis that early IPC preserves postischemic function thus facilitating prosurvival events. Methods and Results I/R decreased chymotryptic activity 50% in isolated rat heart an vivo murine left...
Pregnancy determination is difficult in the giant panda (Ailuropoda melanolecua), representing a challenge for ex situ conservation efforts. Research other species experiencing pseudopregnancy indicates that urinary/fecal concentrations of 13,14, dihydro-15-keto-prostaglandin F2α (PGFM) can accurately determine pregnancy status. Our objective was to if urinary PGFM are associated with status panda. Urinary were measured female pandas (n = 4) throughout gestation 6) and using commercial...
The mechanical properties of dietary items are known to influence skull morphology, either through evolution or by phenotypic plasticity. Here, we investigated the impact supplementary feeding peanuts on morphology red squirrels ( Sciurus vulgaris ) from five populations in Britain (North Scotland, Borders, Jersey and two temporally distinct Formby (Merseyside)). Stable isotope analysis confirmed ecology 58 specimens. Geometric morphometrics were used analyse three-dimensional...
Declining numbers of wild giant anteaters highlight the importance sustainable captive populations. Unfortunately, reproductive management is limited by lack external physical indicators female status and aggressive behavior males. We examined endocrinology estrous cycle pregnancy, whether delayed implantation a gestational strategy for as described other xenarthrans. Feces were collected from seven females 3–5 times weekly mating was recorded. Concentrations estrogen (estrone–glucuronide,...
Captive African (Loxodonta africana) and Asian (Elephas maximus) elephants can experience foot pathologies arthritis. As a preventative measure against these to alleviate the potential discomfort due concrete substrates, some zoological institutions have renovated elephant housing increase amount of natural or shock-absorbent substrates. The objective this study was compare behavioral (diurnal nocturnal) glucorticoid (e.g., serum cortisol) responses three female before, during, after...
The relationship between male ejaculate traits and reproductive success is an important consideration for captive breeding programs. A recovery plan the endangered Louisiana pinesnake includes release of young to wild. Semen was collected from twenty snakes motility, morphology, membrane viability were measured each male. analyzed in relation fertilization rate eggs produced pairings with a single female (% fertility) determine factors contributing success. In addition, we investigated age-...
Historically, reproductive health in wildlife species has been evaluated primarily via immunoassay detection of fecal and urinary steroid hormone metabolites. This combination sample type, biomarker category, assay preferred for decades due to the ease assessing through evaluation stable compounds easily collected biological samples using a cost-effective method. Increasingly, beginning with high performance liquid chromatography (HPLC) more recently convergence ultra HPLC coupled mass...
Abstract The Louisiana pinesnake ( Pituophis ruthveni ) is considered one of the rarest snakes in North America and was federally listed under Endangered Species Act 2018. Captive breeding reintroduction zoo‐bred hatchlings has been successful, however, limited founders captive population inability to bring new, wild genes into colony presents a major concern for conservation this species. use artificial insemination (AI) first applied 1980s but further development technique since received...
Cryopreservation of sperm to preserve the genetic diversity declining populations is a promising technique aid in recovery endangered species such as Louisiana pinesnake (Pituophis ruthveni). However, this has been performed on only handful snake and with limited success. Here, we tested cryoprotective agent (CPA) mixture containing Lake's buffer 10% N,N-dimethyl formamide (DMF), 2% methanol, 5% clarified egg yolk, (v/v% final concentration) against 16 other CPA-treatment mixtures. These...
Giant pandas have been described as mono-oestrus spring breeders, yet males exposed to aseasonal oestrous females in the autumn or winter exhibit breeding behaviours and interest mating. In present study, urinary androgens sperm parameters were quantified for expressing oestrus during spring, examine plasticity of reproductive seasonality giant pandas. Monthly average androgen concentrations two either seasonal greater (P<0.001) than baseline concentrations. Evaluation daily revealed a peak...
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 39:35-49 (2019) - DOI: https://doi.org/10.3354/esr00949 High density, early maturing, and morphometrically unique Hippocampus erectus population makes a Bahamian pond priority site for conservation Heather Masonjones1,*, Emily Rose1,2, Jessica Elson1, Breann Roberts1, Jocelyn Curtis-Quick3 1University of Tampa, Florida...
Accurate monitoring of reproductive activity is necessary for success captive breeding and recovery endangered species. Using ultrasonography, we aimed to describe the stages follicle development Louisiana pinesnake (Pituophis ruthveni). Ultrasound procedures were performed weekly 11 females during 2020 season by submerging last half an unanesthetized female in water using a 3.0-10.0 MHz linear array transducer placed moved along gastrosteges explore whole tract. The presence follicles,...
Abstract A decline in sperm quality with age is a common prediction of senescence‐based hypotheses and empirical studies. While widely studied across taxa, there little known on the effect ageing amphibians, especially captive populations used for controlled propagation reintroduction efforts. Here, we investigated variation metrics (i.e., motility, concentration, morphology) endangered Mississippi gopher frog ( Lithobates sevosus ) among males three categories using individuals from...