Energetic implications of disturbance caused by petroleum exploration to woodland caribou

Bradshaw, Corey J. A.; Boutin, Stan; Hebert, Daryll M.

doi:10.1139/cjz-76-7-1319

Cited by 21 publications

(27 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ecological traps are thought to occur when the attractiveness of a habitat (through increased browse) increases disproportionately relative to its value for survival and reproduction. An increased rate of disturbance in connection with an increased rate of predator encounters can result in a reduction of population size (Frid and Dill, 2002) due to increased antipredator investment (stress) (Ydenberg and Dill, 1986;Cassirer et al, 1992;Maier et al, 1998;Rumble et al, 2005), reduced net energy intake (Stockwell et al, 1991) and body condition (Bradshaw et al, 1998;Luick et al, 2011). Power line ROW along with access roads may provide access for hunters (Goodwin Jr, 1975;Ricard and Doucet, 1995;Perry et al, 1997).…”

Section: Potential Demographic Impactsmentioning

confidence: 99%

The effects of power lines on ungulates and implications for power line routing and rights-of-way management

Bartzke¹,

May²,

Bevanger³

et al. 2014

Int. J. Biodivers. Conserv.

View full text Add to dashboard Cite

Thousands of kilometres of power lines exist and more are planned. Ungulates that range over large areas are likely to encounter power lines, but a synthesis of power line effects on ungulates is lacking. Reindeer (Rangifer tarandus tarandus) are suspected to avoid power lines up to distances of 4 km. In contrast, some forest ungulates preferentially forage in power line rights-of-way, cleared areas under power lines. We reviewed the factors that possibly influence avoidance and attraction effects of power lines on ungulates, construct a conceptual framework, and make suggestions on how to mitigate avoidance effects through power line routing and rights-of-way management. Power line construction, noise and electromagnetic fields are possible sources of disturbance, while rights-of-way management influences habitat use under power lines. Disturbance and altered habitat use can induce barrier and corridor effects, thereby influencing connectivity. Species-specific effects influence behavioural disturbance and habitat use. We found little evidence for behavioural disturbance of reindeer or forest ungulates under power lines. Forest ungulates could benefit from browsing in power line rights-of-way if they are managed to provide abundant and preferred forage as well as sufficient cover. However, power lines may facilitate access for hunters and predators. As a precaution, construction of power lines should be avoided in calving areas. To establish a causal relationship between the construction of power lines and potential avoidance, before-after-impact-control studies are recommended. More research is needed to make recommendations for the optimal design of power line networks.

show abstract

Section: Potential Demographic Impactsmentioning

confidence: 99%

The effects of power lines on ungulates and implications for power line routing and rights-of-way management

Bartzke¹,

May²,

Bevanger³

et al. 2014

Int. J. Biodivers. Conserv.

View full text Add to dashboard Cite

show abstract

“…Higher energetics associated with industrial disturbance may also cause reduction in caribou mass depending on the cumulative influence of that activity (Bradshaw et al, 1998). Reduction of use of high quality forage can also be a factor in decreasing tolerance of human activity through caribou displacement into poorer habitat resulting in lower fecundity (Nellemann & Cameron, 1998).…”

Section: Discussionmentioning

confidence: 99%

“…Disruption of these patters could result in increased energy expenditures and loss of body mass. Bradshaw et al (1998) modelled the cumulative influence of disturbance from petroleum exploration and found that there is a potential effect on individual energy and mass loss on caribou in north-eastern Alberta.…”

Section: Methodsmentioning

confidence: 99%

Determining effects of an all weather logging road on winter woodland caribou habitat use in south-eastern Manitoba

Schindler

Walker

Davis

et al. 2007

Ran

View full text Add to dashboard Cite

Abstract:The Owl Lake boreal woodland caribou population is the most southerly population in Manitoba. It is provincially ranked as a High Conservation Concern Population. Forestry operations exist in the area and there are plans for further forest harvest and renewal. The Happy Lake logging road is the only main access through the Owl Lake winter range. This logging road is currently closed to the public and access is limited to forestry operations during specific times of the year. An integrated forestry/caribou management strategy for the area provides for the maintenance of minimum areas of functional habitat. Habitat quality along the road was compared to habitat quality in the winter core use areas, within the winter range and outside the winter range. To evaluate the extent of functional habitat near the road, we conducted animal location and movement analysis using GPS data collected from January 2002 to March 2006. Habitat quality in the winter range, core use areas and along the road were assessed and found to be similar. Analysis of caribou locations and movement illustrate less use of high quality habitat adjacent to the Happy Lake Road. Loss of functional habitat is suggested to occur within 1 kilometre of the road. This potential loss of functional habitat should be incorporated into integrated forestry and caribou conservation strategies. Road management is recommended to minimize the potential sensory disturbance and associated impacts of all weather access on boreal woodland caribou.

show abstract

“…In Alberta, Canada, exploration and development for oil and gas have been a major contributing factor towards cumulative effects that are responsible for habitat loss and population declines of woodland caribou (Sorensen et al 2008;Komers and Stanojevic 2013). Development activities can affect regular patterns of behavior and physiological conditions, increase movement rates and disrupt feeding cycles, increase energy expenditures and mass loss in winter, force caribou to alter traditional habitats, and decrease calf production and survival (Bradshaw et al 1997(Bradshaw et al , 1998. Consequently, caribou tend to avoid industrial features, especially when human activity levels are high (Dyer et al 2001).…”

Section: Discussionmentioning

confidence: 99%

Potential conflict between future development of natural resources and high-value wildlife habitats in boreal landscapes

Suzuki

Parker

2016

Biodivers Conserv

View full text Add to dashboard Cite

We used the Muskwa-Kechika Management Area in northeast British Columbia, Canada as a case study to determine potential conflicts between future resource development and high-value habitats of large mammals in an undeveloped boreal landscape. More than 50 % of high-value habitats for caribou, moose, elk, wolves and grizzly bears were located in Special Resource Management Zones, where natural resource developments could occur. We developed geographic information system (GIS) layers of potential forest resources, oil and gas, minerals, wind power, all resources combined, and roads; and quantified the proportions of high-value habitats overlapping these potentials. Greater proportions of high-value habitats across seasons for moose, elk, and wolves overlapped areas with high cumulative resource potential (winter, 49-70 %, growing season, 35-63 %) more than for three other species (grizzly bears, Stone's sheep, mountain goats). This pattern was similar for forest resources, oil and gas, wind power, and roads. Caribou were more seasonally influenced. The proportions of their high-value habitat in areas with high cumulative resource potential (winter, 53 %, growing season, 16 %), as well as high forest and oil and gas potentials, were greatest in winter; in contrast, overlap with high mineral potential was greatest during the growing season. We recommend a quantitative and visual GIS approach to scenario planning in the Muskwa-Kechika to maintain the abundance and diversity of wildlife populations there. Resource development would likely increase early seral habitats, presumably benefiting moose, elk, and wolves, but could adversely affect caribou and grizzly bears through habitat loss and increased access.

show abstract

Energetic implications of disturbance caused by petroleum exploration to woodland caribou

Cited by 21 publications

References 0 publications

The effects of power lines on ungulates and implications for power line routing and rights-of-way management

The effects of power lines on ungulates and implications for power line routing and rights-of-way management

Determining effects of an all weather logging road on winter woodland caribou habitat use in south-eastern Manitoba

Potential conflict between future development of natural resources and high-value wildlife habitats in boreal landscapes

Contact Info

Product

Resources

About