A5051663576- Animal Behavior and Reproduction
- Animal Vocal Communication and Behavior
- Avian ecology and behavior
- Bird parasitology and diseases
- Animal and Plant Science Education
- Primate Behavior and Ecology
- Animal Nutrition and Physiology
- Plant and animal studies
- Physiological and biochemical adaptations
- Human-Animal Interaction Studies
- Bee Products Chemical Analysis
- Meat and Animal Product Quality
- Animal Behavior and Welfare Studies
- Turtle Biology and Conservation
- Parasite Biology and Host Interactions
- Reproductive biology and impacts on aquatic species
- Insects and Parasite Interactions
- Helminth infection and control
- Bat Biology and Ecology Studies
- Fish Ecology and Management Studies
- Aquaculture Nutrition and Growth
- Veterinary Medicine and Surgery
- Traffic and Road Safety
- Evolutionary Psychology and Human Behavior
- Marine animal studies overview
Louisiana State University
1981-2025
St. Mary's College of Maryland
2020-2024
Abstract Avoidance of novel stimuli (neophobia) affects how wild animals interact with their environment and may partly determine whether persist in human‐altered landscapes. The neuroendocrine mediators neophobia are poorly understood, although past work demonstrated that experimentally reducing circulating corticosterone wild‐caught house sparrows ( Passer domesticus ) decreased toward objects placed near the food dish. In this experiment, we directly tested role one two types receptors,...
Novel object trials are commonly used to assess aversion novelty (neophobia), and previous work has shown neophobia can be influenced by the social environment, but whether altered behaviour persists afterwards (social learning) is largely unknown in wild animals. We assessed house sparrow ( Passer domesticus ) novel responses before, during after being paired with a conspecific of either similar or different behavioural phenotype. During trials, animals housed more neophobic partner...
Some individuals respond to new objects, foods, or environments with wariness (neophobia), whereas others are willing approach and explore. Because novel stimuli can represent both dangers resources, group-living species may show adaptive plasticity in neophobia response social cues. To better understand how conspecific calls influence a highly gregarious species, we exposed individual house sparrows ( Passer domesticus ) either alarm (n = 12), contact no playback 12) measured latency feed...
Resource mobilization and reallocation is a major endpoint of the physiological response to acute challenges. However, energy metabolites have not been focus most field studies. Here, we characterized glycemic free fatty acid (FFA) an acute-handling challenge in breeding, free-living, population Mountain Dark-eyed Juncos ( Junco hyemalis oreganus) Mono County, CA. n = 12) were trapped seed-baited potter traps at Tioga Pass Meadow, coinciding with territory establishment early nesting period....
Many songbirds begin active incubation after laying their penultimate egg, resulting in synchronous hatching of the clutch except for a last-hatched individual ("runt") that hatches with size deficit and competitive disadvantage to siblings when begging food. However, climate change may elevate temperatures cause environmental as eggs are laid, asynchronous larger hierarchies among siblings. Although previous work demonstrated reduces nestling growth survival relative synchrony,...
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Neophobia – an animal’s reluctance to approach novel objects, try new foods, or explore unfamiliar environments affects whether animals can adapt environment ts and exploit resources. However, despite its importance, the neurobiological mechanisms underlying this personality trait are poorly understood. In study, we examined regional brain activity using expression of two immediate early genes (IEGs), ZENK c-Fos, in response objects control conditions captive house sparrows (Passer...
The presence of predators can cause major changes in animal behavior, but how this interacts with hormonal state and brain activity is poorly understood. We gave female house sparrows ( Passer domesticus ) post-molt condition an estradiol (n = 17) or empty implant 16) for 1 week. Four weeks after removal, a time when show large differences neuronal to conspecific vs. heterospecific song, we exposed birds either 30 min song predator calls, video recorded their behavior. Females were then...
The presence of predators can cause major changes in animal behavior, but how this interacts with hormonal state and perception is poorly understood. We gave female house sparrows (Passer domesticus) an estradiol (n=17) or empty implant (n=16) for one week. Four weeks after removal, a time when have large differences brain activity to conspecific vs. heterospecific song, we exposed birds either 30 min song predator calls, video recorded their behavior. Females were then euthanized, examined...
SUMMARY The efficacy of ivermectin against inhibited early 4th-stage larvae Ostertagia ostertagi and other nematodes the abomasum intestinal tract was determined in naturally infected yearling beef cattle. time when large numbers were acquired by monthly slaughter monitor cattle, beginning January. In April, 12 animals removed from pasture maintained free further helminth exposure until (21 days). At 9 days after cattle pasture, administered to principals subcutaneous injection (200 μg/kg);...