Zobrazeno 1 - 10
of 98
pro vyhledávání: '"James N. M. Smith"'
Publikováno v:
PLoS ONE, Vol 7, Iss 9, p e44346 (2012)
Lewis's Woodpecker (Melanerpes lewis) has experienced population declines in both Canada and the United States and in 2010 was assigned a national listing of threatened in Canada. We conducted a two-year study (2004-2005) of this species at its north
Externí odkaz:
https://doaj.org/article/2692724fbc564fdda997a6446fd407cf
Publikováno v:
Journal of Avian Biology. 41:163-176
Conspecific brood parasitism (CBP) occurs in over 200 species of birds. Efforts to detect CBP have relied on either observational criteria, or more recently, on molecular methods. While molecular approaches are powerful, they are expensive, time cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ab0690edf10e7afd3688c1ab9667159
https://doi.org/10.1111/j.1600-048x.2009.04735.x
https://doi.org/10.1111/j.1600-048x.2009.04735.x
Autor:
James N. M. Smith, Christoph Rohner
Publikováno v:
Ibis. 138:236-242
The reproduction of raptors strongly depends on food resources. It is unclear whether predators experience superabundant food during cyclic peaks of prey populations. In order to test this hypothesis, four pairs of Great Horned Owls Bubo virginianus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d662ea606e6a2e04695efecb971331c
https://doi.org/10.1111/j.1474-919x.1996.tb04334.x
https://doi.org/10.1111/j.1474-919x.1996.tb04334.x
Autor:
Peter Arcese, Wesley M. Hochachka, Lukas F. Keller, James N. M. Smith, Alice Cassidy, Mary J. Taitt, Christopher Rogers
Publikováno v:
Ibis. 138:120-128
In this paper, we describe spatial variation in the demography of the Song Sparrow Melospiza melodia. Long-term population studies of birds have generally considered only single sites in optimal habitat, but recent theory has shown the value of takin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46e88f117cb2439429180949997a82da
https://doi.org/10.1111/j.1474-919x.1996.tb04318.x
https://doi.org/10.1111/j.1474-919x.1996.tb04318.x
Publikováno v:
The Auk. 124:276-290
By nesting near aggressive birds, timid species can reap the benefits of aggressive nest defense while avoiding the costs. Red Phalaropes (Phalaropus fulicarius; hereafter “phalaropes”) typically nest in grass-sedge marshes, but nests have also b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1bb9d343efcce736811f1acf88bd3bc
https://doi.org/10.1093/auk/124.1.276
https://doi.org/10.1093/auk/124.1.276
Publikováno v:
The Auk. 124:210-223
The demographic significance of parasitism by Brown-headed Cowbirds (Molothrus ater; hereafter “cowbirds”) has been debated for years, because manipulative studies are few and mathematical models of cowbird-host systems have not led to tests of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d779d3b6f126df0577d8e05d37230e90
https://doi.org/10.1093/auk/124.1.210
https://doi.org/10.1093/auk/124.1.210
Publikováno v:
Ecology. 87:2459-2467
Although the possibility that food and predators may interact in limiting avian populations has long been recognized, there have been few attempts to test this experimentally in the field. We conducted a manipulative food addition experiment on the d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c819aa5d72949cb39e435a2de2ee51c5
https://doi.org/10.1890/0012-9658(2006)87[2459:fapaep]2.0.co
https://doi.org/10.1890/0012-9658(2006)87[2459:fapaep]2.0.co
Publikováno v:
Oecologia. 147:632-640
Food and predators have traditionally been viewed as mutually exclusive alternatives when considering factors affecting animal populations. This has led to long controversies such as whether annual reproductive success in songbirds is primarily a fun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51b6022fae5d2967acc4ae34e46cfc3a
https://doi.org/10.1007/s00442-005-0330-y
https://doi.org/10.1007/s00442-005-0330-y
Autor:
Susan M. Shirley, James N. M. Smith
Publikováno v:
Biological Conservation. 125:475-489
Buffer strips are strips of forest retained along streamsides after harvesting to mitigate negative impacts of forestry on aquatic and riparian fauna and water quality. The capacity of riparian buffer strips of old-growth forest to maintain species r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f72f509280d4bad56af1494af1ccb385
https://doi.org/10.1016/j.biocon.2005.04.011
https://doi.org/10.1016/j.biocon.2005.04.011
Publikováno v:
Ecology. 86:815-820
Predators (or parasites) can have both direct and indirect effects on prey (or host) demography. Recent theory suggests that the impact of either effect may be greater if predators and parasites skew the sex ratio of survivors. Brown-headed Cowbirds
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2d6cbde0e702a1bba3847ff3e0ef2e4
https://doi.org/10.1890/04-0809
https://doi.org/10.1890/04-0809