Zobrazeno 1 - 10
of 10
pro vyhledávání: '"James S. Kellam"'
Publikováno v:
Birds, Vol 5, Iss 3, Pp 440-452 (2024)
Abandoned mine drainage treatment ponds could have contrasting effects on the reproductive success of birds living in the vicinity. The ponds and associated vegetation may, like any other body of freshwater, provide beneficial habitats for the insect
Externí odkaz:
https://doaj.org/article/12a5443948694d98a48c096991779e7c
Autor:
Rachael Sarnowski, James S. Kellam
Publikováno v:
Birds, Vol 4, Iss 1, Pp 148-158 (2023)
Human industry and land use has led to the anthropogenic release of manganese (Mn) into the air and soil near manufacturing centers. Overexposure to Mn can cause considerable health problems in birds. We studied whether the concentration of Mn in bir
Externí odkaz:
https://doaj.org/article/1c78b785b34c4aafa04a1bc1a3445a86
Autor:
James S. Kellam
Publikováno v:
Ornithology. 138
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::556233e2762e64d92a900b5a7e833ae8
https://doi.org/10.1093/ornithology/ukab013
https://doi.org/10.1093/ornithology/ukab013
Autor:
James S. Kellam, Dakota K. Hutchinson
Publikováno v:
BIOS. 86:144-151
Anting is a curious behavior that has been recorded in over 200 species of songbirds. While anting, a bird will wipe several ants throughout its plumage. It has been proposed that birds select ants for their ability to spray formic acid, a chemical t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48ebd991aa8f73d743a6c59b697d134b
https://doi.org/10.1893/bios-d-14-00039.1
https://doi.org/10.1893/bios-d-14-00039.1
Autor:
James S. Kellam, Jeffrey R. Lucas
Publikováno v:
The Wilson Journal of Ornithology. 126:249-260
Numerous studies have shown that testosterone (T) increases singing rates of passerine birds, but much less is known about the influence of T on non-song vocalizations, particularly in non-passerine species. Woodpeckers (order Piciformes) give severa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::053e5558eb754615481d11dd1f8559cd
https://doi.org/10.1676/13-083.1
https://doi.org/10.1676/13-083.1
Autor:
James S. Kellam
Publikováno v:
Northeastern Naturalist. 21:N8-N12
Extra-pair copulation (EPC) behavior is widespread among birds in general, but rarely has been documented among members of the Woodpecker family. Here I report on an EPC observed between a nesting female Picoides pubescens (Downy Woodpecker) and a ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09e24e6c9cc43de6c00b29bfc1b60539
https://doi.org/10.1656/045.021.0115
https://doi.org/10.1656/045.021.0115
Publikováno v:
Animal Behaviour. 71:695-707
Studies of the role of testosterone (T) in birds have typically focused on sexual or aggressive behaviours of males during the breeding period, but males of nonmigratory species may invest in mate and territory long before breeding, and the influence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a4b8d145f2b821c7b3b20cf5b7fd714
https://doi.org/10.1016/j.anbehav.2005.07.012
https://doi.org/10.1016/j.anbehav.2005.07.012
Autor:
Walter D. Koenig, Eric L. Walters, Jeffrey R. Walters, James S. Kellam, Klaus G. Michalek, Matthew S. Schrader
Publikováno v:
The Condor. 107:810-822
We investigated patterns of seasonal variation in body weight in six populations of five resident species of temperate-zone woodpeckers: Acorn Woodpecker (Melanerpes formicivorus), Red-bellied Woodpecker (M. carolinus), Red-cockaded Woodpecker (Picoi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac035ced89360af9daeebaf84ae131e1
https://doi.org/10.1093/condor/107.4.810
https://doi.org/10.1093/condor/107.4.810
Autor:
James S. Kellam
Publikováno v:
The Wilson Bulletin. 115:186-192
Individuals in a number of bird species have the opportunity to maintain contact with their mates during nonbreeding periods. This contact may be important to synchronize the partners' reproductive cycles before breeding begins. As a first step towar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fe26254dbacaa9d073f640ff89eeebb
https://doi.org/10.1676/02-098
https://doi.org/10.1676/02-098
Publikováno v:
Hormones and behavior. 46(5)
Studies in birds show that testosterone (T) concentrations vary over the annual cycle depending on mating system and life history traits. Socially monogamous species show pairing behavior throughout the year and low levels of male-male aggression and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fbb453972d4980748d0af0528099832
https://pubmed.ncbi.nlm.nih.gov/15555514
https://pubmed.ncbi.nlm.nih.gov/15555514