Calf/female ratio and population dynamics of wild forest reindeer in relation to wolf and moose abundances in a managed European ecosystem
Kojola, Ilpo; Hallikainen, Ville; Heikkinen, Samuli; Forsman, Jukka T.; Kukko, Tuomas; Pusenius, Jyrki; Antti, Paasivaara (2021)
Kojola, Ilpo
Hallikainen, Ville
Heikkinen, Samuli
Forsman, Jukka T.
Kukko, Tuomas
Pusenius, Jyrki
Antti, Paasivaara
Julkaisusarja
PLoS ONE
Volyymi
16
Numero
12
Sivut
15 p.
Public Library of Science
2021
Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi-fe202201031018
http://urn.fi/URN:NBN:fi-fe202201031018
Tiivistelmä
The alternative prey hypothesis describes the mechanism for apparent competition whereby the mortality of the secondary prey species increases (and population size decreases decreases) by the increased predation by the shared predator if the population size of the primary prey decreases. Apparent competition is a process where the abundance of two co-existing prey species are negatively associated because they share a mutual predator, which negatively affects the abundance of both prey Here, we examined whether alternative prey and/or apparent competition hypothesis can explain the population dynamics and reproductive output of the secondary prey, wild forest reindeer (Rangifer tarandus fennicus) in Finland, in a predator-prey community in which moose (Alces alces) is the primary prey and the wolf (Canis lupus) is the generalist predator.
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