No evidence of metabolic costs following adaptive immune activation or reactivation in house sparrows

Autor: William A. Buttemer, Terence W. O'Dwyer, Lee B. Astheimer, Kirk C. Klasing, Bethany J. Hoye

Publikováno v: Biol Lett

The energy cost of adaptive immune activation in endotherms is typically quantified from changes in resting metabolic rate following exposure to a novel antigen. An implicit assumption of this technique is that all variation in energy costs following

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::430aa6a9525e526be6d28555b834da34
https://doi.org/10.1098/rsbl.2022.0036

Seasonal stress physiology and body condition differ among co-occurring tropical finch species

Autor: Kimberly Maute, Lee B. Astheimer, Sarah Legge, Kristine French

Publikováno v: Journal of Comparative Physiology B. 183:1023-1037

Seasonal changes in avian hormonal stress responses and condition are well known for common species found at temperate and arctic latitudes, but declining and tropical species are poorly studied. This study compares stress and condition measures of c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4670d602d835fd4f5a59f3b4b014778
https://doi.org/10.1007/s00360-013-0775-y

A 'slow pace of life' in Australian old-endemic passerine birds is not accompanied by low basal metabolic rates

Autor: Claus Bech, Lee B. Astheimer, Mark A. Chappell, William A. Buttemer, Gustavo A. Londoño

Publikováno v: Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology, vol 186, iss 4
Bech, C; Chappell, MA; Astheimer, LB; Londono, GA; & Buttemer, WA. (2016). A 'slow pace of life' in Australian old-endemic passerine birds is not accompanied by low basal metabolic rates. JOURNAL OF COMPARATIVE PHYSIOLOGY B-BIOCHEMICAL SYSTEMIC AND ENVIRONMENTAL PHYSIOLOGY, 186(4), 503-512. doi: 10.1007/s00360-016-0964-6. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/337567dp

Life history theory suggests that species experiencing high extrinsic mortality rates allocate more resources toward reproduction relative to self-maintenance and reach maturity earlier (‘fast pace of life’) than those having greater life expecta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab4ecc98df32ab2262ec76e9fd2b37ee
https://escholarship.org/uc/item/337567dp

Fipronil toxicity in northern bobwhite quail Colinus virginianus: Reduced feeding behaviour and sulfone metabolite formation

Autor: Malsha Kitulagodage, William A. Buttemer, John P. Isanhart, Lee B. Astheimer, Michael J. Hooper

Publikováno v: Chemosphere. 83:524-530

Fipronil is a phenyl pyrazole insecticide registered for agricultural use in many countries. Avian exposure to fipronil occurs mainly by ingesting contaminated insects or seeds. There is little information regarding the toxicological effects of fipro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0dd2e43690d00edaad7654e4718f113
https://doi.org/10.1016/j.chemosphere.2010.12.057

Attacks on humans by Australian Magpies (Cracticus tibicen): territoriality, brood-defence or testosterone?

Autor: Lee B. Astheimer, Darryl Noel Jones, Rowena Michelle Warne

Publikováno v: Emu - Austral Ornithology. 110:332-338

Attacks on humans by Australian Magpies (Cracticus tibicen) are a significant human–wildlife conflict in Australia, especially in suburban environments. Remarkably little is known about the phenomenon. In this study, we explored three common hypoth

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7346fea7b1073263164fa981542ddbdb
https://doi.org/10.1071/mu10027