Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Per Fauchald"'
Autor:
M. Ballesteros, Knut Langeland, Per Fauchald, Bård-Jørgen Bårdsen, Audun Stien, Torkild Tveraa
Publikováno v:
Journal of Zoology. 287:34-40
Parasites extract part or all their resources from their host depriving them of energy that could be normally used for growth, self-maintenance or reproduction. Thus, parasites are playing a major role in the evolution of life-history traits of their
Publikováno v:
Ecology. 90:3197-3208
The purpose of the present study was to inspect the response of the Atlantic Puffin (Fratercula arctica) to an experimental manipulation of the investment needed to successfully raise an offspring. We achieved this by replacing an old offspring with
Publikováno v:
Oikos. 118:837-852
In a previous experiment we have documented that organisms adopt a risk-sensitive reproductive allocation when summer reproductive investment competes with survival in the coming winter (Bardsen et al. 2008). This tradeoff is present through autumn f
Publikováno v:
Ecology. 79:1781-1788
Life history theory suggests that animals should balance their current investment in young against their chances to reproduce in the future. One fundamental prediction from the theory is that long-lived species should be restrictive in any increase o
Publikováno v:
PLoS ONE
e56450
PLoS ONE, Vol 8, Iss 2, p e56450 (2013)
e56450
PLoS ONE, Vol 8, Iss 2, p e56450 (2013)
Global warming is expected to cause earlier springs and increased primary productivity in the Arctic. These changes may improve food availability for Arctic herbivores, but may also have negative effects by generating a mismatch between the surge of
Empirical work suggest that long-lived organisms have adopted risk sensitive reproductive strategies where individuals trade the amount of resources spent on reproduction versus survival according to expected future environmental conditions. Earlier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84970d2eeeb8ceb22ab3ae0bfd7a3ea0
https://hdl.handle.net/10037/4089
https://hdl.handle.net/10037/4089
Publikováno v:
Oecologia. 162(3)
Organisms should adopt a risk-sensitive reproductive allocation when summer reproductive allocation competes with survival in the coming winter. This trade off is shown through autumn female body mass, which acts as an insurance against unpredictable
Autor:
Knut Langeland, Bård-Jørgen Bårdsen, Per Fauchald, Nigel G. Yoccoz, Torkild Tveraa, Rolf A. Ims
Publikováno v:
Ecology. 89(3)
When reproduction competes with the amount of resources available for survival during an unpredictable nonbreeding season, individuals should adopt a risk-sensitive regulation of their reproductive allocation. We tested this hypothesis on female rein
Publikováno v:
Environment International, Vol 34, Iss 2, Pp 193-201 (2008)
Concentrations of organochlorine contaminants (OCs) and associations between OCs and fitness components were examined in great black-backed gulls (Larus marinus) in three colonies along the coast of northern Norway. In one of the colonies, data were
Publikováno v:
Oecologia. 137(3)
A central issue in ecology is to what extent food limitation and predation affect animal populations. We studied how survival and reproductive success was related to the female , s size in a population of semi-domesticated reindeer during 2 years whe