Author: U.S. Fish and Wildlife Service
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Recovery Plan for Bighorn Sheep in the Peninsular Ranges, California, October 2000
Author: U.S. Fish and Wildlife Service
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Recovery Plan for Bighorn Sheep in the Peninsular Ranges, California
Author: Esther Rubin
Publisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 284
Book Description
Publisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 284
Book Description
Recovery Plan for Bighorn Sheep in the Peninsular Ranges, California
Author: Esther Rubin
Publisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 292
Book Description
Publisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 292
Book Description
Draft Recovery Plan for the Bighorn Sheep in the Peninsular Ranges (Ovis Canadensis)
Author: Esther Rubin
Publisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 203
Book Description
Publisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 203
Book Description
California Desert Conservation Area Plan Amendment for the Coachella Valley, Santa Rosa and San Jacinto Mountains Trails Management Plan, Riverside County
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 514
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 514
Book Description
Santa Rosa and San Jacinto Mountains National Monument Proposed Management Plan and Final Environmental Impact Statement, Riverside County, California
Author:
Publisher:
ISBN:
Category : Environmental impact analysis
Languages : en
Pages : 782
Book Description
Publisher:
ISBN:
Category : Environmental impact analysis
Languages : en
Pages : 782
Book Description
Conservation and Spatial Use Analyses for the Recovery of Bighorn Sheep in the Peninsular Ranges
Author: Stacey D. Ostermann
Publisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 164
Book Description
The status of wild sheep in North America typifies the plight of many wildlife species in modern times: wild sheep have declined to 10-40% of their numbers during pristine times and on a global scale approximately 31% of Caprine are considered threatened or critical. As human populations and the number of threatened and endangered wildlife species increase, research into the causes of wildlife population declines and tools to aid recovery are urgently needed. We conducted two studies of endangered desert bighorn sheep (Ovis canadensis nelsoni) in the Peninsular Ranges of Southern California with the primary goal of furthering recovery efforts for this species. First, in order to evaluate a captive breeding program for Peninsular bighorn, we developed the following criteria to provide a standard means of evaluating ongoing captive breeding and reintroduction programs: (1) survival and recruitment rates in the captive population, (2) survival of released animals, (3) recruitment of released animals, (4) growth rate of the reintroduced or augmented population, and (5) establishment of a viable wild population. In assessing the Peninsular bighorn sheep program, we found that while reintroduction did not result in population growth or establishment of a viable population, it helped prevent extirpation of the reinforced deme, preserved metapopulation linkage, and aided habitat preservation. Chronic low recruitment and low adult survivorship precluded achievement of criteria 3-5. Environmental conditions in the release area also appeared to hinder program success. We suggest that periodic evaluations are useful for improving the success of individual captive breeding and reintroduction programs, as well as for meta-analyses needed to refine reintroduction science as a recovery tool for threatened or endangered populations. Wildlife habituated to the presence of humans have been recognized as a new dilemma facing wildlife managers. Our second study involved examining the habitat use, home range size, and nutritional levels of Peninsular desert bighorn sheep along an urbanwildland interface during two time periods (1981-82 and 1995-98). We found that bighorn sheep monitored during 1995-98 used habitat within (P
Publisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 164
Book Description
The status of wild sheep in North America typifies the plight of many wildlife species in modern times: wild sheep have declined to 10-40% of their numbers during pristine times and on a global scale approximately 31% of Caprine are considered threatened or critical. As human populations and the number of threatened and endangered wildlife species increase, research into the causes of wildlife population declines and tools to aid recovery are urgently needed. We conducted two studies of endangered desert bighorn sheep (Ovis canadensis nelsoni) in the Peninsular Ranges of Southern California with the primary goal of furthering recovery efforts for this species. First, in order to evaluate a captive breeding program for Peninsular bighorn, we developed the following criteria to provide a standard means of evaluating ongoing captive breeding and reintroduction programs: (1) survival and recruitment rates in the captive population, (2) survival of released animals, (3) recruitment of released animals, (4) growth rate of the reintroduced or augmented population, and (5) establishment of a viable wild population. In assessing the Peninsular bighorn sheep program, we found that while reintroduction did not result in population growth or establishment of a viable population, it helped prevent extirpation of the reinforced deme, preserved metapopulation linkage, and aided habitat preservation. Chronic low recruitment and low adult survivorship precluded achievement of criteria 3-5. Environmental conditions in the release area also appeared to hinder program success. We suggest that periodic evaluations are useful for improving the success of individual captive breeding and reintroduction programs, as well as for meta-analyses needed to refine reintroduction science as a recovery tool for threatened or endangered populations. Wildlife habituated to the presence of humans have been recognized as a new dilemma facing wildlife managers. Our second study involved examining the habitat use, home range size, and nutritional levels of Peninsular desert bighorn sheep along an urbanwildland interface during two time periods (1981-82 and 1995-98). We found that bighorn sheep monitored during 1995-98 used habitat within (P
Santa Rosa and San Jacinto Mountains National Monument (N.M.) Management Plan
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 768
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 768
Book Description
Draft Santa Rosa and San Jacinto Mountains National Monument Management Plan, and Draft Environmental Impact Statement
Author:
Publisher:
ISBN:
Category : Conservation of natural resources
Languages : en
Pages : 450
Book Description
Publisher:
ISBN:
Category : Conservation of natural resources
Languages : en
Pages : 450
Book Description
Recovery Plan for the Sierra Nevada Bighorn Sheep
Author: U.S. Fish and Wildlife Service. California/Nevada Operations Office
Publisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 199
Book Description
Publisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 199
Book Description