Competition between recolonizing wolves and resident lynx in Sweden

2010 ◽  
Vol 88 (3) ◽  
pp. 271-279 ◽  
Author(s):  
Camilla Wikenros ◽  
Olof Liberg ◽  
Håkan Sand ◽  
Henrik Andrén
Keyword(s):  
Roe Deer ◽  
Interference Competition ◽  
Capreolus Capreolus ◽  
Local Area ◽  
Home Range Size ◽  
Size Difference ◽  
Lynx Lynx ◽  
Exploitation Competition ◽  
South Central ◽  
Before And After

We studied the effect of a recolonizing wolf ( Canis lupus L., 1758) population on a resident lynx ( Lynx lynx (L., 1758)) population in south-central Sweden. Wolf and lynx share the same prey species, western roe deer ( Capreolus capreolus (L., 1758)), and the size difference between the two species suggests a strong potential for interference competition. The spatial distributions of lynx family groups (n = 378) over four winters were not significantly affected by the increase in size and range of the wolf population. Survival of lynx kittens until 9 months of age did not differ significantly inside (54%; n = 37) and outside (62%; n = 42) wolf territories, and female lynx (n = 3) selected natal den sites (n = 19) in the same local area before and after wolf establishment. Furthermore, lynx home-range size (n = 42) did not increase as a result of presence of wolves and space use by female lynx (n = 3) was not affected by wolf establishment. We found no evidence of cleptoparasitism by wolves on roe deer killed by lynx. We conclude that the intensity of interference and exploitation competition between wolves and lynx was low.

Ecological correlates of home-range size in spring–summer for female roe deer ( Capreolus capreolus ) in a deciduous woodland

2005 ◽  
Vol 267 (03) ◽  
pp. 301 ◽  
Author(s):  
Sonia Saïd ◽  
Jean-Michel Gaillard ◽  
Patrick Duncan ◽  
Nadine Guillon ◽  
Noël Guillon ◽  
...  
Keyword(s):  
Home Range ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Home Range Size ◽  
Range Size ◽  
Deciduous Woodland ◽  
Ecological Correlates

scholarly journals Comparing patterns of human harvest and predation by Eurasian lynx Lynx lynx on European roe deer Capreolus capreolus in a temperate forest

2013 ◽  
Vol 60 (1) ◽  
pp. 11-21 ◽  
Author(s):  
Miha Krofel ◽  
Klemen Jerina ◽  
Franc Kljun ◽  
Ivan Kos ◽  
Hubert Potočnik ◽  
...  
Keyword(s):  
Temperate Forest ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Lynx Lynx ◽  
Eurasian Lynx

scholarly journals Caching Behavior of Large Prey by Eurasian Lynx: Quantifying the Anti-Scavenging Benefits

Diversity ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 350
Author(s):  
Ivonne J. M. Teurlings ◽  
John Odden ◽  
John D. C. Linnell ◽  
Claudia Melis
Keyword(s):  
Observational Data ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Lynx Lynx ◽  
Large Prey ◽  
Functional Responses ◽  
Eurasian Lynx ◽  
Predator Prey ◽  
Prey System ◽  
Prey Items

Large solitary felids often kill large prey items that can provide multiple meals. However, being able to utilize these multiple meals requires that they can cache the meat in a manner that delays its discovery by vertebrate and invertebrate scavengers. Covering the kill with vegetation and snow is a commonly observed strategy among felids. This study investigates the utility of this strategy using observational data from Eurasian lynx (Lynx lynx)-killed roe deer (Capreolus capreolus) carcasses, and a set of two experiments focused on vertebrate and invertebrate scavengers, respectively. Lynx-killed roe deer that were covered by snow or vegetation were less likely to have been visited by scavengers. Experimentally-deployed video-monitored roe deer carcasses had significantly longer time prior to discovery by avian scavengers when covered with vegetation. Carcass parts placed in cages that excluded vertebrate scavengers had delayed invertebrate activity when covered with vegetation. All three datasets indicated that covering a kill was a successful caching/anti-scavenger strategy. These results can help explain why lynx functional responses reach plateaus at relatively low kill rates. The success of this anti-scavenging behavior therefore has clear effects on the dynamics of a predator–prey system.

Behavioral Interactions and Body Size Differences in Competition for Food among Juvenile Brown Bullhead (Ictalurus nebulosus)

1982 ◽  
Vol 39 (2) ◽  
pp. 316-320 ◽  
Author(s):  
W. Hubert Keen
Keyword(s):  
Body Size ◽  
Social Interactions ◽  
Growth Rates ◽  
Interference Competition ◽  
Size Difference ◽  
Food Level ◽  
Brown Bullhead ◽  
Exploitation Competition ◽  
Behavioral Interactions ◽  
Ictalurus Nebulosus

The effects of relative body size (larger or smaller fish), absolute body size differences, food level, and social interactions on the growth rates of juvenile brown bullhead (Ictalurus nebulosus) catfish were determined for pairs of fish. Overall growth rate of the larger fish was higher than for the smaller fish, although this difference did not depend on absolute body size difference within pairs. The reduced growth rates of both larger and smaller fish at limited food level was independent of both relative size difference and absolute body size difference within pairs. Both larger and smaller fish had highly variable growth rates. Size dominance and aggression were common within many pairs, yet this behavior was unrelated to food level and absolute body size difference. Aggression within pairs was not diminished by adding structural complexity to simple environments. It is suggested that the high variability in growth rates was due to differences in individuals within pairs with respect to the intensity of behavioral interactions. Social interactions within pairs offish were apparently unrelated to food level and were strong enough to mask both exploitative and interference mechanisms which may have been functional in competition for limited food.Key words: body size, dominance hierarchies, exploitation competition, food level, Ictalurus nebulosus, interference competition, behavioral interactions

scholarly journals Significance of lynx Lynx lynx predation for roe deer Capreolus capreolus and chamois Rupicapra rupicapra mortality in the Swiss Jura Mountains

2002 ◽  
Vol 8 (1) ◽  
pp. 109-115 ◽  
Author(s):  
Anja Molinari-Jobin ◽  
Paolo Molinari ◽  
Christine Breitenmoser-Würsten ◽  
Urs Breitenmoser
Keyword(s):  
Roe Deer ◽  
Capreolus Capreolus ◽  
Lynx Lynx ◽  
Jura Mountains ◽  
Rupicapra Rupicapra ◽  
Swiss Jura

Experimental evidence for density-dependence of home-range size in roe deer ( Capreolus capreolus L.): a comparison of two long-term studies

Oecologia ◽  
2004 ◽  
Vol 139 (3) ◽  
pp. 478-485 ◽  
Author(s):  
P. Kjellander ◽  
A. J. M. Hewison ◽  
O. Liberg ◽  
J.-M. Angibault ◽  
E. Bideau ◽  
...  
Keyword(s):  
Home Range ◽  
Density Dependence ◽  
Experimental Evidence ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Home Range Size ◽  
Range Size ◽  
Long Term Studies

scholarly journals The impact of lynx and wolf on roe deer hunting benefits in Sweden

2021 ◽  
Author(s):  
Katarina Elofsson ◽  
Tobias Häggmark
Keyword(s):  
Open Access ◽  
Marginal Cost ◽  
Private Property ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Annual Number ◽  
Lynx Lynx ◽  
Deer Hunting ◽  
Marginal Costs ◽  
The Impact

AbstractLarge carnivores provide ecosystem and cultural benefits but also impose costs on hunters due to the competition for game. The aim of this paper was to identify the marginal impact of lynx (Lynx lynx) and wolf (Canis lupus) on the harvest of roe deer (Capreolus capreolus) in Sweden and the value of this impact. We applied a production function approach, using a bioeconomic model where the annual number of roe deer harvested was assumed to be determined by hunting effort, abundance of predators, availability of other game, and winter severity. The impact of the predators on the roe deer harvests was estimated econometrically, and carnivore marginal impacts were derived. The results showed that if the roe deer resource was harvested under open access, the marginal cost in terms of hunting values foregone varied between different counties, and ranged between 18,000 and 58,000 EUR for an additional lynx family, and 79,000 and 336,000 EUR for an additional wolf individual. Larger marginal costs of the wolf, in terms of the impact on roe deer hunting, were found in counties where the hunting effort was high and the abundance of moose (Alces alces) was low. If instead, hunters could exert private property rights to the resource, the average marginal cost was about 20% lower than it would have been if there was open access, and the difference in wolf impact between counties with high and low moose density was smaller. Together, results suggest that the current plan for expanding the wolf population in south Sweden can be associated with a substantial cost.

scholarly journals Selectivity of eurasian lynx Lynx lynx and recreational hunters for age, sex and body condition in roe deer Capreolus capreolus

2007 ◽  
Vol 13 (4) ◽  
pp. 467-474 ◽  
Author(s):  
Reidar Andersen ◽  
Jørn Karlsen ◽  
Lars Bendik Austmo ◽  
John Odden ◽  
John D. C. Linnell ◽  
...  
Keyword(s):  
Body Condition ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Lynx Lynx ◽  
Eurasian Lynx

Behavioural responses of ungulates to indirect cues of an ambush predator

Behaviour ◽  
2015 ◽  
Vol 152 (7-8) ◽  
pp. 1019-1040 ◽  
Author(s):  
Camilla Wikenros ◽  
Dries P.J. Kuijper ◽  
Robert Behnke ◽  
Krzysztof Schmidt
Keyword(s):  
Cervus Elaphus ◽  
Red Deer ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Camera Traps ◽  
Lynx Lynx ◽  
Eurasian Lynx ◽  
Predatory Behaviour ◽  
Ambush Predator ◽  
Risk Of Predation

Ambush predators provide more persistent cues of predation risk compared to coursing predators and are predicted to exert stronger effects on behaviour of their prey. We studied anti-predator responses of ungulates by means of camera traps to an olfactory cue (fresh scat) of an ambush predator, the Eurasian lynx (Lynx lynx). Roe deer (Capreolus capreolus) and red deer (Cervus elaphus) both important prey species for lynx were not more vigilant when exposed to lynx scent, but reduced their visitation duration. Our results contrast with previously reported responses of red deer to scent from a coursing predator, the wolf (Canis lupus), where only vigilance and foraging behaviour but not visitation duration changed in response to wolf scat. This indicates that ungulates are able to recognize the risk of predation from predators with differing hunting modes based on olfactory cues and adjust their anti-predatory behaviour.

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