Effect of wolf control on black-tailed deer in the Nimpkish Valley on Vancouver Island

  • 32 Pages
  • 1.72 MB
  • English
May be obtained from the Ministry of Environment, Lands & Parks, Wildlife Branch , Victoria, B.C
Wolves -- Control -- Environmental aspects -- British Columbia -- Nimpkish River Valley, Mule deer -- Ecology -- British Columbia -- Nimpkish River Valley, Mule deer -- Effect of predation on -- British Columbia -- Nimpkish River Valley, Mammal populations -- British Columbia -- Nimpkish River V


British Columbia, Nimpkish River Va

Statementby K.T. Atkinson and D.W. Janz.
SeriesWildlife bulletin,, no. B-73, Wildlife bulletin (Victoria, B.C.) ;, B-73.
ContributionsJanz, Doug.
LC ClassificationsQL737.C22 A85 1994
The Physical Object
Paginationviii, 32 p. :
ID Numbers
Open LibraryOL908214M
ISBN 100772619816
LC Control Number95202629

An experimental wolf control program was conducted on northern Vancouver Island from /83 to /87 to determine the impact of wolf control on black-tailed deer numbers and to assess the efficacy of trapping and shooting as a method of wolf control in coastal forests. Black-tailed deer, especially fawns in summer, provided most of the wolf diet on Vancouver Island.

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Effect of wolf control on black-tailed deer in the Nimpkish Valley on Vancouver Island (Wildlife bulletin)Author: Knut Thomas Atkinson. Jones, G.

W., and B. Mason. Relationships among wolves, hunting, and population trends of black-tailed deer in the Nimpkish valley on Vancouver Island. British Columbia Fish and Wildlife Report R-7, Victoria, British Columbia, Canada.

Google ScholarCited by: Apparent demographic changes in black-tailed deer associated with wolf control on northern Vancouver Island.

the Nimpkish Valley, Vancouver Island black-tailed deer on Vancouver Island. In the s, the provincial government initiated an ­experimental wolf-control program in the Nimpkish Valley on northern Vancouver Island in an attempt to reverse the decline of Black-tailed.

Effect of Wolf Control on Black-tailed Deer in the Nimpkish Valley on Vancouver Island. Progress Report - August 31 to August Atkinson, K.T.

Details Effect of wolf control on black-tailed deer in the Nimpkish Valley on Vancouver Island EPUB

Effectiveness Report to BC Parks Masselink, Jake: K. The relative availability and quantities of black-tailed deer (Odocoileus hemionus columbianus [Richardson]) forage supplied by litterfall and understory vegetation during winter were assessed in selected mature conifer stands in the Nimpkish Valley of northern Vancouver Island.

Composition and rates of litterfall and its use by deer were determined as were year-long food habits of deer. Atkinson, KT, Janz D () Effect of Wolf Control on Black-Tailed Deer in the Nimpkish Valley on Vancouver Island, Ministry of Environment, Lands & Parks, Wildlife Branch, Bulletin No.

such as movements, survival, and causes of mortality. The wolf-deer and hunter-deer relationships are no exception. Recent research on elk has shown that predation risk from both wolves and hunters has significant effects on changes in group size, movement rate, and habitat use for this prey species, but the effect from hunters was stronger.

Wildlife management in British Columbia has experienced over the last two decades a situation where continued pressure from logging and other forest uses has forced wildlife into an ever shrinking island of survival.

What is needed from a resource planner's point of view is a means of elevating and sustaining public concern in the issue of forestry-wildlife management and to ensure that an. Yet in some areas, wolf predation, when combined with severe winter weather and poor deer habitat, has caused declines in deer numbers, which could influence local hunter success.

In a county area of northeastern Minnesota-the core of the state’s wolf range-the number of bucks harvested between and has remained high even in the. on Vancouver Island and wolf control programs were started in some areas.

However,without detailed knowledge about why deer populations fluctuate, these changes offered only ad hoc solutions. Some information about birth rates in black-tailed deer populations on the Island did exist,but estimates of death and survival did IWIFR research.

We studied black bears (Ursus americanus) between and in the Nimpkish Valley, Vancouver Island, British Columbia. Duringwe observed 4 incidents of. pretty cheap." A healthy population of wolves on Vancouver Island could serve as donors.

The island has an environment and prey base similar to the peninsula's, although it has fewer elk. Wolves there prey primarily on black-tailed deer. A wolf control program in the late s reduced the island.

Cougars and wolves on Vancouver Island feed primarily on black-tailed deer (MacTaggart-Cowan, There appears to be a threshold effect for deer density on forbs, D.W. JanzApparent demographic changes in black-tailed deer associated with wolf control on northern Vancouver Island.

Can. Zoolog., 72 (), pp. Also known as: Blacktail deer, Columbian black-tailed deer: Description: Weight. Adult males, called bucks, weigh around lbs (91 kg), while does, adult females, weigh around lbs (59 kg) Color: Their pelage ranges from reddish to brown, light or dark ash-gray, to even a dark brownish gray Size: Large males stand up to 3 ft (1 m) at the shoulder.

_This is an excerpt from Hunting Editor Andrew McKean's book, How to Hunt Everything, which is available here. Keep an eye out for more species and how to hunt them here on the Hunting blog._ Black-tailed deer make phantoms seem positively obvious.

These rainy forest wraiths are cousins of mule deer, but nothing except their forked antlers resemble their open-country kin.

Description Effect of wolf control on black-tailed deer in the Nimpkish Valley on Vancouver Island PDF

Blacktails crave. Vancouver Island Marmot Recovery Team: K. Relationships Among Black-Tailed Deer Populations Trends Winter Range Hunting and Wolves in the Nimpkish Valley Vancouver Island: Jones, G.W.

For example, although deer do swim, Ruxton Island has remained free of deer for 15 years despite lying within 1 km of DeCourcy Island, which supports a resident deer herd.

Larger islands have also remained deer-free for at least 35 years (e.g., Portland, Russell and Moresby islands) despite their proximity to high density deer populations (e.g. The deer that evade and survive predation are the most fit—smart, tough, wary and wild.

Finally, it is important to understand the role that deer play in the wild. We humans, we passionate outdoors enthusiasts, hunters, or non-consumptive wildlife watchers, have an innate fondness for deer, and feel a need to protect and care for them.

Related to mule deer, Sitka black-tailed deer are smaller and stockier than the Columbian black-tailed deer found in the Pacific Northwest. The average October live weight of adult Sitka black-tails is about 80 lbs (36 kg) for does and lbs ( kg) for bucks, although lb bucks have been taken.

Features: Columbian black-tailed deer are smaller and darker than mule deer. As the name suggests, black-tailed deer have a wide, triangular tail with a dark brown or black top and a white underside. Habitat: Blacktails are a subspecies of mule deer found in western Oregon from the Coast Range east to the Cascade Mountains.

They are edge-adapted species using the region’s dense forest cover. the major predators of the deer in Point Reyes specifically (; ). Additionally, the grey wolf was a major predator throughout the overall range of the black-tailed deer (Jurek ).

Coyotes are a historic and current predator, but they mostly kill deer when the deer population is already struggling. The effects of hunting on deer populations are minor compared to the effects of habitat quality and wolf predation.

For example, before the increase in wolves in the Nimpkish Valley, hunting seasons were liberal because habitat conditions were favourable and deer were abundant.

There was no evidence of a deer decline due to hunting. In Minnesota, for example, each wolf eats an average of adult-sized deer or their equivalent per year to meet their nutritional requirements.

Based on this average, and the estimate of 2, wolves in Minnesota, wolves kill the equivalent of ab to 48, adult-sized deer per year. The male black tailed deer will than mate with multiple female black tailed deer during the rut. Once the rut is complete the male black tailed deer will have no connection with the fawn that was just created (WDFW ).

During the rut the female black tailed deer are in heat or otherwise known as the estrous cycle for days. service decided to bring in natural predators to control the deer population. It was hoped that natural predation would keep the deer population from becoming too large and also increase the deer quality (or health), as predators often eliminate the weaker members of the herd.

Inten wolves were flown into the island. a Winter before the deer harvest. b Six individual packs were tested. c With removed as "outlier". deer increased or decreased similarly in 5 years, and in one year the largest decrease (n = 25) in the wolf population (from to ) was followed by no change in the buck harvest.

winter minimum estimate of the wolf population was - animals, an increase of 14% from and wolves may reduce the The return of the wolf to Wisconsin has raised questions about their impact on the white-tailed deer herd.

A healthy adult wolf will take about 20 adult-sized deer per year. Wisconsin boasts one of the. The Rock Island pack was an exception, showing statistically significant selection for areas of high caribou use in both seasons (Fig. 3, 4). Wolf diet.

During winter, deer were found in % (± %) of scats and provided % (± %) of biomass in wolf diet. Although moose were present in a comparatively low percentage of scats (.

Deer are common sights away from the cities in much of BC and beyond.

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Expect to spot leaping white-tailed deer and mule deer flitting among the trees and alongside the roads in the Rockies. You might also spot the Columbia black-tailed deer, a small subspecies native to Vancouver Island .The Columbian black tailed deer is smaller than their mule deer and white tailed deer counterparts (IHEA ).

The coat colors can range from dark brown, grey to light ash-grey and reddish brown (Misuraca ). At the throat of the black tailed deer there is a white patch of hair (Misuraca ).Chronic wasting disease is a progressive, fatal neurological disease of captive and/or free-ranging mule deer (Odocoileus hemionus), mule deer hybrids, black-tailed deer, white-tailed deer (Odocoileus virginianus), Rocky Mountain elk (Cervus canadensis), and Shira’s moose (Alces alces) in North chronic wasting disease was for the first time detected in Europe (Norway) in free.