A5079724014- Animal Behavior and Reproduction
- Animal Vocal Communication and Behavior
- Avian ecology and behavior
- Bird parasitology and diseases
- Polar Research and Ecology
- Telomeres, Telomerase, and Senescence
- Bat Biology and Ecology Studies
- Meat and Animal Product Quality
- Animal Nutrition and Physiology
- Plant and animal studies
- Viral Infections and Vectors
- Marine animal studies overview
- Primate Behavior and Ecology
- Safety Warnings and Signage
- Aquaculture Nutrition and Growth
- Veterinary Medicine and Surgery
- Physiological and biochemical adaptations
- Human-Animal Interaction Studies
- Reproductive biology and impacts on aquatic species
- Turtle Biology and Conservation
- Fish Ecology and Management Studies
- Bee Products Chemical Analysis
- Traffic and Road Safety
Louisiana State University
2020-2025
Indiana University Bloomington
2021
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...
There is good evidence that telomeres predict variation in health and longevity, yet it unclear whether these patterns are causally derived from per se, part because relatively little research directly manipulates telomere length during early life, when shortening most dynamic. Here, we test how the telomerase activator TA‐65 (i.e. cycloastrogenol) affects five tissues peak of growth wild tree swallow Tachycineta bicolor . Following eight days oral administration, chicks experienced...
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,...
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...