Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Calcarius pictus"'
Publikováno v:
Avian Conservation and Ecology, Vol 19, Iss 1, p 13 (2024)
Climate change is having a disproportionate impact on the Arctic. For Arctic breeding birds, basic knowledge of their annual cycle, specifically the timing, route, and movement behavior of migration, is needed to understand when and where populations
Externí odkaz:
https://doaj.org/article/29533abdb0df4466aef3446b58f80c7a
Akademický článek
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Publikováno v:
The Condor, 2017 Feb 01. 119(1), 85-97.
Externí odkaz:
https://www.jstor.org/stable/90009480
Publikováno v:
The Auk, 2015 Oct 01. 132(4), 916-925.
Externí odkaz:
https://www.jstor.org/stable/90009104
Publikováno v:
The Condor, 2015 Feb 01. 117(1), 3-17.
Externí odkaz:
https://www.jstor.org/stable/90008639
Publikováno v:
The Condor. 119:85-97
Despite changes in shrub cover and weather patterns associated with climate change in the Arctic, little is known about the breeding requirements of most passerines tied to northern regions. We investigated the nesting biology and nest habitat charac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43360d33cf2e6780419d5b115863cc58
https://doi.org/10.1650/condor-16-87.1
https://doi.org/10.1650/condor-16-87.1
Publikováno v:
The Auk. 132:916-925
Although sex biases in survival and dispersal are thought to be linked to avian mating systems, little is known about these demographic patterns in less common mating strategies such as polygynandry. We investigated breeding-site fidelity, natal phil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bd533ec3123885c67767d7a215608cb
https://doi.org/10.1642/auk-15-41.1
https://doi.org/10.1642/auk-15-41.1
Publikováno v:
The Condor. 117:3-17
Smith's Longspur (Calcarius pictus) is a species of conservation concern which breeds in Arctic habitats that are expected to be especially vulnerable to climate change. We used bird presence and habitat data from point-transect surveys conducted at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4493840839bec62e187f381edda2015
https://doi.org/10.1650/condor-14-77.1
https://doi.org/10.1650/condor-14-77.1
Autor:
William C. Holimon, C. Theo Witsell, Catherine W. Rideout, Jennifer A. Akin, William H. Baltosser
Publikováno v:
Journal of Field Ornithology. 83:351-361
Smith's Longspurs (Calcarius pictus) are a species of concern in North America because of their limited range and apparent low population size. To better understand winter habitat needs and guide management of this species, we examined habitat associ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a625d6639eea0a5edd6188e20d1db99
https://doi.org/10.1111/j.1557-9263.2012.00385.x
https://doi.org/10.1111/j.1557-9263.2012.00385.x
Autor:
Joseph P. Roberts, Gary D. Schnell
Publikováno v:
Journal of Field Ornithology. 77:46-60
Although investigators have evaluated the efficacy of survey methods for assessing densities of breeding birds, few comparisons have been made of survey methods for wintering birds, especially in grasslands. In winter, social behavior and spatial dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e25ecf04ad41fa17a2025e4de0715d2f
https://doi.org/10.1111/j.1557-9263.2006.00024.x
https://doi.org/10.1111/j.1557-9263.2006.00024.x