Effects of Temperature Variation on the Growth, Phenotype, and Survival of Nestling Barn Swallows, Hirundo rustica.

Elsa D. Schenk
Dr. Joanna Hubbard, Faculty Mentor

Migratory birds use cues from changes in temperature to time migration, mating, and reproduction. Barn swallows (Hirundo rustica), are migratory birds found throughout North America. From days 0 to 8 they are considered as ectotherms and are reliant on incubation for thermoregulation. This crucial time in their development means they are susceptible to fluctuations in temperature, that may affect the color development and survival. Because darker males are more attractive, temperature may ultimately impact sexual selection in the species. In this study, we investigated the effect of temperature during early development, specifically its effects on plumage color, developmental growth, and survival. We predict a positive correlation between temperature and plumage color, temperature and development, and to find an intermediate temperature optimum relative to survival. 

 

Keywords: Biology, Ecology, Barn Swallows, Ornithology

Topic(s):Biology

Presentation Type: Oral Presentation

Session: TBA
Location: TBA
Time: TBA