Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Jennifer J. Barg"'
Autor:
M. Katherine. Girvan, Jason Jones, D. Ryan. Norris, Jennifer J. Barg, T. Kurt. Kyser, Raleigh J. Robertson
Publikováno v:
Avian Conservation and Ecology, Vol 2, Iss 2, p 3 (2007)
Despite the fundamental role played by long-distance dispersal in population dynamics, the mechanisms promoting or inhibiting dispersal by migratory songbirds are poorly understood. We used stable-hydrogen isotopes (δD) to evaluate several hypothese
Externí odkaz:
https://doaj.org/article/7729f4e92af44122a4ce3999eecf5845
Autor:
D. Ryan Norris, M. Katherine Girvan, T. Kurt Kyser, Jason Jones, Jennifer J. Barg, Raleigh J. Robertson
Publikováno v:
The Condor. 110:538-544
It has been hypothesized that populations that are strongly connected between two periods of the year (i.e., individuals that breed in similar locations and also spend the nonbreeding season in similar locations) will be most vulnerable to population
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::076053564f51efeed24601561f1780f5
https://doi.org/10.1525/cond.2008.8563
https://doi.org/10.1525/cond.2008.8563
Autor:
David A. Buehler, Dustin W. Varble, Christopher M. Rogers, Joseph R. Robb, Kamal Islam, Jason Jones, James Giocomo, Tiffany A. Beachy, Paul B. Hamel, Jennifer J. Barg, Raleigh J. Robertson, Charles P. Nicholson, Kirk L. Roth
Publikováno v:
Journal of Wildlife Management. 72:646-653
We present and compare demographic data for cerulean warblers (Dendroica cerulea) from 5 study sites across the range of the species from 1992 to 2006. We conducted field studies to collect data on daily nest survival, nest success, and young fledged
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2f7f56037173b6a0486779abae1bf0d
https://doi.org/10.2193/2006-339
https://doi.org/10.2193/2006-339
Publikováno v:
The Wilson Journal of Ornithology. 118:316-325
The Cerulean Warbler (Dendroica cerulea) is currently the focus of considerable management interest; however, our ability to develop effective management strategies is hampered by a dearth of life history and basic behavioral data. Here, we present i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::106806052e14fd6cf2eb22b587c5228a
https://doi.org/10.1676/05-027.1
https://doi.org/10.1676/05-027.1
Publikováno v:
The Auk. 123:795-806
Although most habitat characteristics are known to be continuously variable in space, practicality dictates that most habitat-selection studies at the spatial scale of the territory treat within-territory habitat as essentially homogeneous. However,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08b7e352da8b1f9af8df74b7c56a98e1
https://doi.org/10.1093/auk/123.3.795
https://doi.org/10.1093/auk/123.3.795
Autor:
M. Katharine Girvan, Raleigh J. Robertson, Jason Jones, Jennifer J. Barg, M. Lisa Veit, Vicki L. Friesen, Susanne C. Millard, Christine E. Gibb
Publikováno v:
Journal of Biogeography. 32:1827-1833
Aim Bergmann's rule, the tendency for body size to be positively correlated with latitude, is widely accepted but the mechanisms behind the patterns are still debated. Bergmann's originally conceived mechanism was based on heat conservation; other pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af0b1a17ec43049a024e963b9c3b6502
https://doi.org/10.1111/j.1365-2699.2005.01320.x
https://doi.org/10.1111/j.1365-2699.2005.01320.x
Publikováno v:
Canadian Journal of Zoology. 83:626-629
Although hostparasite interactions can affect the ecology and distribution of species, virtually nothing is known about range-wide variation in haematozoan levels in North American birds. We investigated haematozoan prevalence and parasitemia in 11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1de80f6424bef4001d0f3ec9d5851ff3
https://doi.org/10.1139/z05-043
https://doi.org/10.1139/z05-043
Publikováno v:
Journal of Animal Ecology. 74:139-149
Summary 1. The goals of this study were to investigate the possibility of using kernel techniques to estimate male breeding territory size and delineate core areas, focusing on a small nontransmitter bearing bird, the cerulean warbler. We then compar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8b2277f35feaf138e3ba672ec409c21
https://doi.org/10.1111/j.1365-2656.2004.00906.x
https://doi.org/10.1111/j.1365-2656.2004.00906.x
Publikováno v:
Ecology. 82:2628-2635
Large-scale natural habitat disturbances can play major roles in structuring the distribution of individuals and ecosystems, and can exert substantial selective pressures. The magnitude of these effects depends on the spatial and temporal scale of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db044694644286d8c1f9d6239a3bb3b7
https://doi.org/10.1890/0012-9658(2001)082[2628:ateond]2.0.co
https://doi.org/10.1890/0012-9658(2001)082[2628:ateond]2.0.co
Autor:
Ronald L. Mumme, Jennifer J. Barg
Publikováno v:
The Auk. 111:459-464
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e94d421a4b95b4a8abb1f338708ccc33
https://doi.org/10.2307/4088610
https://doi.org/10.2307/4088610