Individual variation in diurnal body temperature and foraging activity in overwintering black-capped chickadees (Poecile atricapillus).

• Tác giả: Deborah M Hawkshaw, Kimberley J Mathot, Jan J Wijmenga
• Ngôn ngữ: eng
• Thông tin xuất bản: England : Journal of thermal biology , 2025
• Bộ sưu tập: NCBI
• ID: 581944

Tóm tắt

Small birds in winter can mitigate energetic shortfalls via increases in foraging and/or via controlled reductions in metabolic rate and body temperature (torpor). The ability to both increase foraging and use torpor during the day could have profound implications for an individual's daily energy budget and overwinter survival. Trade-offs between foraging efficiency and daytime torpor use may exist but have not been explicitly investigated. Here, we investigated the presence of within- and among-individual correlations between daytime body temperature (T