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

  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},
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.

Predation costs and compensations in reindeer husbandry

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.



Interactions between Eurasian lynx and wolverines in the reindeer husbandry area

In conservation and management, carnivore species are often treated as isolated units, even though interspecific interactions can have important implications for the behaviour, demography and

Comparative Patterns of Predation by Cougars and Recolonizing Wolves in Montana's Madison Range

It is concluded that shifts by prey toStructurally complex refugia were attempts by formerly naïve prey to lessen predation risk from wolves; nevertheless, shifting to more structurally complexRefugia might have made prey more vulnerable to cougars.

Diet shift of a facultative scavenger, the wolverine, following recolonization of wolves.

This study highlights how wolves increase scavenging opportunities for wolverines, and how sexual differences in diet may also apply to large scavengers.

Climate, season, and social status modulate the functional response of an efficient stalking predator: the Eurasian lynx.

This analysis suggests that simple functional response curves might be poor descriptors of predator consumption rates in complex natural system, and that auxiliary factors are likely to induce complexity into any predator-prey systems that would not be captured by simple deterministic approaches.

Winter lynx Lynx lynx predation on semi-domestic reindeer Rangifer tarandus in northern Sweden

It is concluded that reindeer are a very important food source for lynx in winter, which potentially could lead to problems in resolving the camivore-livestock conflicts in the region.


Although there were differences in productivity among maternity dens, the main factor influencing the number of wolverine cubs surviving was the abundance of small rodents, and the basic prey during the denning period was reindeer.

Modeling potenti al effects of brown bear kleptopa rasitism on the predatio n rate of Eurasian lynx

Kleptoparasitism is a frequent phenomenon when consumption of prey by predator continues for a relatively long period. This is common when prey is larger or of a similar size as the predator. We

Coyotes and recolonizing wolves: social rank mediates risk-conditional behaviour at ungulate carcasses

Raven scavenging favours group foraging in wolves