Modelling the combined effect of an obligate predator and a facultative predator on a common prey: lynx Lynx lynx and wolverine Gulo gulo predation on reindeer Rangifer tarandus

@inproceedings{Andrn2011ModellingTC,
  title={Modelling the combined effect of an obligate predator and a facultative predator on a common prey: lynx Lynx lynx and wolverine Gulo gulo predation on reindeer Rangifer tarandus},
  author={Henrik Andr{\'e}n and Jens Persson and Jenny Mattisson and Anna Danell},
  year={2011}
}
Abstract In conservation and management of large predators, effects of species are often considered separately. However, predators often interact with one another in different ways (e.g. interspecific competition, intra guild predation and kleptoparasitism) that may influence the total predation on a common prey. We estimated the total number of semi-domestic reindeer Rangifer tarandus killed by Eurasian lynx Lynx lynx and wolverine Gulo gulo at different relative abundances of the two species… 

Influence of intraguild interactions on resource use by wolverines and Eurasian lynx

It is suspected that lynx presence reduces wolverine predation on reindeer due to increased scavenging opportunities, and Wolverines appear to benefit from coexistence with lynx through increased scaventing opportunities.

The relationship between wolverine and larger predators, lynx and wolf, in a historical ecosystem context

It is suggested that Wolverines could benefit from lynx presence and low-to-intermediate wolf densities while wolves might both suppress wolverine and provide carrion with the net effect becoming positive when wolf density drops below a threshold.

Tracking neighbours promotes the coexistence of large carnivores

The results support the idea that risk avoidance is a reactive, rather than a predictive, process, and the combined presence of both predators may reduce wolverine kill rate and thus the total impact of these predators on semi-domestic reindeer in Scandinavia.

Eurasian lynx (Lynx lynx) and wolverine (Gulo gulo) response to seasonal variation in prey availability: influences on space use, seasonal site fidelity and reproduction

The results of this study indicate that the decreased lynx recruitment seen may be related to the costs of living within a system with seasonally marginal resources, and the space use of carnivores in areas of predictable reindeer presence is more stable than carnivores with seasonal variation in prey availability.

Lynx predation on semi‐domestic reindeer: do age and sex matter?

It is suggested that human-controlled seasonal variation in reindeer abundance is a main driver of prey selection by Eurasian lynx on semi-domesticReindeer in northern Scandinavia.

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It is suggested that co-existence of a viable gray wolf population and profitable reindeer husbandry in the same area is not possible in most cases and the costs of predation are clearly higher than the net slaughtering value of the predated animals.

When species’ ranges meet: assessing differences in habitat selection between sympatric large carnivores

The results support the prediction that sympatric carnivores with otherwise diverging niches can select for the same resources when sharing main sources of food and mortality.

Native predators reduce harvest of reindeer by Sámi pastoralists.

There is a biological basis for compensating the Sámi reindeer herders for predation onReindeer by Sami pastoralists in Sweden, and the mechanism for effects ofpredation on harvest was reduced population growth rate.

Wolf habitat selection when sympatric or allopatric with brown bears in Scandinavia

The new results indicate that the manifestation of a specific driver of habitat selection, namely interspecific competition, can vary at different spatial-temporal scales, which is important to understand the structure of ecological communities and the varying mechanisms underlying interspecific interactions.

Predator size and prey size-gut capacity ratios determine kill frequency and carcass production in terrestrial carnivorous mammals

A kill frequency model accounting for carnivore mass, prey mass, pack size, partial consumption of prey and carnivore gut capacity was developed and predicted a negative relationship between predator size and kill frequency for large prey-feeders, but for small prey- feeders, this negative relationship was absent.

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