Prey of Wolves in the Great Lakes Region

DelGiudice, Glenn D.; McCaffery, Keith R.; Beyer, Dean E.; Nelson, M. E.

doi:10.1007/978-0-387-85952-1_10

Cited by 19 publications

(13 citation statements)

References 32 publications

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“…Both wolves and encounters between wolves and people occurred in the upper half of the state (Wydeven et al ; Treves et al ), and the number of wolf attacks on domestic animals, including pets, more than doubled from 358 (1982–2000) to 736 (2001–2008) (Treves et al ; Ruid et al ; Treves et al ). Many deer hunters expressed dissatisfaction with deer harvests (Heberlein ; Jacques & Van Deelen ), and some blamed predators, including wolves, that prey predominantly on deer (DelGiudice et al ).…”

Section: Methodsmentioning

confidence: 99%

Longitudinal Analysis of Attitudes Toward Wolves

Treves

Naughton‐Treves

Shelley

2013

Conservation Biology

203

158

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Understanding individual attitudes and how these predict overt opposition to predator conservation or direct, covert action against predators will help to recover and maintain them. Studies of attitudes toward wild animals rely primarily on samples of individuals at a single time point. We examined longitudinal change in individuals' attitudes toward gray wolves (Canis lupus). In the contiguous United States, amidst persistent controversy and opposition, abundances of gray wolves are at their highest in 60 years. We used mailed surveys to sample 1892 residents of Wisconsin in 2001 or 2004 and then resampled 656 of these individuals who resided in wolf range in 2009. Our study spanned a period of policy shifts and increasing wolf abundance. Over time, the 656 respondents increased agreement with statements reflecting fear of wolves, the belief that wolves compete with hunters for deer (Odocoileus virginianus), and inclination to poach a wolf. Endorsement of lethal control of wolves by the state and public hunting of wolves also increased. Neither the time span over which respondents reported exposure to wolves locally nor self-reported losses of domestic animals to wolves correlated with changes in attitude. We predict future increases in legal and illegal killing of wolves that may reduce their abundance in Wisconsin unless interventions are implemented to improve attitudes and behavior toward wolves. To assess whether interventions change attitudes, longitudinal studies like ours are needed. Análisis Longitudinal de las Actitudes Hacia Lobos.

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Section: Methodsmentioning

confidence: 99%

Longitudinal Analysis of Attitudes Toward Wolves

Treves

Naughton‐Treves

Shelley

2013

Conservation Biology

203

158

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“…Deer predators included black bear, coyote, bobcat, and wolves. Because moose ( Alces americanus ) occur at low density (~2/100 km 2 ; D. E. Beyer, Michigan Department of Natural Resources, unpublished data) and have a limited range, deer are the primary ungulate prey species available in the Upper Peninsula of Michigan (DelGiudice et al ).…”

Section: Study Areamentioning

confidence: 99%

Predator densities and white‐tailed deer fawn survival

et al. 2019

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Predation is the dominant source of mortality for white‐tailed deer (Odocoileus virginianus) <6 months old throughout North America. Yet, few white‐tailed deer fawn survival studies have occurred in areas with 4 predator species or have considered concurrent densities of deer and predator species. We monitored survival and cause‐specific mortality from birth to 6 months for 100 neonatal fawns during 2013–2015 in the Upper Peninsula of Michigan, USA, while simultaneously estimating population densities of deer, American black bear (Ursus americanus), coyote (Canis latrans), bobcat (Lynx rufus), and gray wolf (Canis lupus). We estimated fawn predation risk in response to sex, birth mass, and date of birth. Six‐month fawn survival pooled among years was 36%, and fawn mortality risk was not related to birth mass, date of birth, or sex. Estimated mean annual deer and predator densities were 334 fawns/100 km2, 25.9 black bear/100 km2, 23.8 coyotes/100 km2, 3.8 bobcat/100 km2, and 2.8 wolves/100 km2. Despite lower estimated per‐individual kill rates, coyotes and black bears were the leading sources of fawn mortality because they had greater densities relative to bobcats and wolves. Our results indicate that the presence of more predator species in a system is not entirely additive in its effect on fawn survival. © The Wildlife Society, 2019

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“…Grey wolves (Canis lupus) prey on adult moose and calves where the 2 species are sympatric (Peterson 1999, DelGiudice et al 2009, Keech et al 2011, Severud et al 2015a. Adults are formidable, often standing their ground rather than fleeing when approached by wolves (Mech et al 2015); however, calves are more vulnerable, especially during their first summer (Patterson et al 2013, Severud et al 2015a.…”

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confidence: 99%

Association of moose parturition and post‐parturition habitat with calf survival

2018

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Habitat use during calving and the energetically demanding post‐parturition period can be an important determinant of neonatal survival. The moose (Alces alces) population in northeastern Minnesota, USA declined 65% from 2006 to 2018. During 2013–2015, annual survival of calves was estimated as low as 28%. We remotely monitored global positioning system (GPS)‐collared adult female moose and their neonates during the calving and post‐parturition seasons to examine calving movements, birth‐sites, habitat use, survival, and cause‐specific mortality of neonates. Identifying the association of specific landscape characteristics with neonate survival should yield insight into mechanisms contributing to the declining moose population and serve as a basis for an ecologically sound management response. We compared habitat characteristics of pre‐calving, calving, peak‐lactation, and mortality sites at a fine and broad scale. We also compared calving sites of females that successfully reared a calf to winter to those that did not. In general, females tended to move to areas of more conifer cover to calve. During peak‐lactation, females and their calves used steeper areas with abundant forage and high concealment but less conifer cover. Mortalities occurred at sites that were more level than other site types. Females that successfully reared a calf to 1 February typically calved in areas with more deciduous forest and less forested wetland cover than females whose calves died before 9 months of age. Habitat improvement projects for moose should consider forage requirements and placement on the landscape in relation to cover and slope. © 2018 The Wildlife Society.

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Prey of Wolves in the Great Lakes Region

Cited by 19 publications

References 32 publications

Longitudinal Analysis of Attitudes Toward Wolves

Longitudinal Analysis of Attitudes Toward Wolves

Predator densities and white‐tailed deer fawn survival

Association of moose parturition and post‐parturition habitat with calf survival

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