Potential impact of wolves Canis lupus on prey populations in eastern Poland

Glowacinski, Z.; Profus, Piotr

doi:10.1016/s0006-3207(96)00067-5

Cited by 35 publications

(25 citation statements)

References 16 publications

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“…Again, both the quantity and age composition of the prey can be explained in part by differences in pack size, with M08's larger pack size making the capture of larger prey feasible. The estimated consumption of meat for both packs (3-5 kg individual -1 day -1 ) falls within norms reported elsewhere (Głowaciński and Profus 1997;Peterson and Ciucci 2003). The rates reported here are also consistent with the summer predation rates reported by Sand et al (2008) in Sweden and Norway, who also observed a high proportion of juvenile ungulates in the diets of smaller packs, and a higher proportion of moose and adult animals consumed by larger packs.…”

Section: Discussionsupporting

confidence: 87%

Summer movements, predation and habitat use of wolves in human modified boreal forests

Gurarie

Suutarinen

Kojola³

et al. 2011

Oecologia

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Grey wolves (Canis lupus), formerly extirpated in Finland, have recolonized a boreal forest environment that has been significantly altered by humans, becoming a patchwork of managed forests and clearcuts crisscrossed by roads, power lines, and railways. Little is known about how the wolves utilize this impacted ecosystem, especially during the pup-rearing summer months. We tracked two wolves instrumented with GPS collars transmitting at 30-min intervals during two summers in eastern Finland, visiting all locations in the field, identifying prey items and classifying movement behaviors. We analyzed preference and avoidance of habitat types, linear elements and habitat edges, and tested the generality of our results against lower resolution summer movements of 23 other collared wolves. Wolves tended to show a strong preference for transitional woodlands (mostly harvested clearcuts) and mixed forests over coniferous forests and to use forest roads and low use linear elements to facilitate movement. The high density of primary roads in one wolf's territory led to more constrained use of the home territory compared to the wolf with fewer roads, suggesting avoidance of humans; however, there did not appear to be large differences on the hunting success or the success of pup rearing for the two packs. In total, 90 kills were identified, almost entirely moose (Alces alces) and reindeer (Rangifer tarandus sspp.) calves of which a large proportion were killed in transitional woodlands. Generally, wolves displayed a high level of adaptability, successfully exploiting direct and indirect human-derived modifications to the boreal forest environment.

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Section: Discussionsupporting

confidence: 87%

Summer movements, predation and habitat use of wolves in human modified boreal forests

Gurarie

Suutarinen

Kojola³

et al. 2011

Oecologia

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“…Populations from Scotland descended from birds reintroduced from Sweden in the mid-1800s (Lever 1977) and its number has severely declined since the 1970s (Baines et al 2004). Similarly, JLF population is considered as rather dense but it has been isolated for a few hundred years and presently declining (Głowaciński & Profus 2001). Moreover, pairwise F ST values (Table 4), showing great differentiation, confirmed this long isolation from other Polish populations and analysis of microsatellite polymorphism indicated that these processes have already resulted in reduced genetic variability in JLF.…”

Section: Discussionmentioning

confidence: 99%

Genetic Variability of Polish Population of the CapercaillieTetrao urogallus

Rutkowski

Dziedzic²

2005

Acta Ornithologica

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“…That means, that not only the diet composition changed, but also the hunting behavior had to be adapted. While one adult red deer is enough to feed the pack for several days (Głowaciński and Profus, 1997;Jędrzejewski et al, 2000, and others), one roe deer can be completely eaten by two wolves in one night. Furthermore: killing a smaller roe deer is possible for a single wolf, whereas it is more likely to kill a much stronger red deer if more wolves take part in the hunt.…”

Section: Development Of Diet Compositionmentioning

confidence: 99%

Wolf (Canis lupus) feeding habits during the first eight years of its occurrence in Germany

Wagner

Holzapfel

Kluth³

et al. 2012

Mammalian Biology

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a b s t r a c tDue to the fact that the feeding habits of large carnivores are the main contentious point when they start resettling regions they were absent from for several decades, the diet composition of the wolves in Germany was analysed from the beginning of this process. Wolves in Germany primarily feed on wild ungulates, which make up more than 96% of their diet. The dominating prey species is the roe deer (55.3%), followed by red deer (20.8%) and wild boar (17.7%). The second important food category are the leporids (2.9% of Biomass), whereas livestock makes up only 0.6% of all biomass consumed. Wolves clearly prefer hunting on juvenile to adult red deer; roe deer are not selected after their age. We found seasonal differences in the diet composition with a higher amount of wild boar in spring and winter, when a high amount of juveniles and weakened animals, respectively, are available. In the first years of the study the percentage of red deer was much higher, and the percentage of roe deer therefore was lower than the following years. The amount of wild boar in the wolf diet fluctuated most in the first three years. Diet composition remained constant during the last five years. Wolves needed less than two generations for adapting to the new conditions in the cultivated landscape of eastern Germany.

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Potential impact of wolves Canis lupus on prey populations in eastern Poland

Cited by 35 publications

References 16 publications

Summer movements, predation and habitat use of wolves in human modified boreal forests

Summer movements, predation and habitat use of wolves in human modified boreal forests

Genetic Variability of Polish Population of the CapercaillieTetrao urogallus

Wolf (Canis lupus) feeding habits during the first eight years of its occurrence in Germany

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