Determining Minimum Habitat Areas and Habitat Corridors for Cougars

  title={Determining Minimum Habitat Areas and Habitat Corridors for Cougars},
  author={Paul Beier},
  journal={Conservation Biology},
  • P. Beier
  • Published 1 March 1993
  • Geography
  • Conservation Biology
I simulated population dynamics of cougars to predict tbe minimum areas and levels of immigration needed to avoid population extinction caused by demo- graphic and environmental stochasticity for a period of 100 years Under mostplausible parameter values, the modelpre- dicted vety low extinction risk in areas as small as 2200 km2, and (in the absence of immigration) increasing risk as area decreased below 2200 km2. If as few as one to four animals per decade could immigrate into a small popula… 

Figures and Tables from this paper

Modeling Cougar Corridors in the Owens Valley
Cougars, along with black bears and grey wolves, are the most significant apex predators in the lower forty-eight states of the United States. Currently they are at risk of population decline in many
Multiscale consensus habitat modeling for landscape level conservation prioritization
This work used location data and environmental variables to develop a consensus model using Maxent and Mahalanobis distance to identify black bear habitat across Florida, USA and suggests habitat is at risk of fragmentation.
Modeling Disjunct Gray Wolf Populations in Semi-Wild Landscapes
Gray wolves ( Canis lupus ) in parts of the United States and Europe live in networks of disjunct pop- ulations, many of which are close to human settlement. Because wolf management goals include
Designing a Conservation Landscape for Tigers in Human‐Dominated Environments
: Wildlife populations in small, isolated reserves face genetic and demographic threats to their survival. To increase the probability of long-term persistence, biologists promote metapopulation
Patch Size and Connectivity Thresholds for Butterfly Habitat Restoration
This work used incidence functions to predict long-term, stochastic, steady-state conditions and dispersal simulations to predict short-term (25-year) colonization dynamics and recommends selecting nearby sites when short- term colonization dynamics are expected to be an important aspect of a species' biology.
Linking resource selection and mortality modeling for population estimation of mountain lions in Montana
a b s t r a c t To be most effective, the scale of wildlife management practices should match the range of a particular species' movements. For this reason, combined with our inability to rigorously
Population viability of recolonizing cougars in midwestern North America
Although cougar (Puma concolor) populations have been absent from most of midwestern North America for >100 years, the combination of long-distance dispersal and a significant increase in presence of


Determining Minimum Viable Population Sizes for the Grizzly Bear
A stochastic computer simulation is presented for use in determining the relationship of population size to extinction probabilities for populations of grizzly bears (Ursus arctos). Published data on
Population Characteristics and Movement Patterns of Cougars in Southern Utah
Twenty-two cougars (Felis concolor) were monitored by radiotelemetry between January 1979 and July 1981 in southern Utah. The population, comprised of resident, transient, and juvenile cougars,
Viable Populations for Conservation: Minimum viable population size in the presence of catastrophes
Until a generalized theory covering both concepts is attempted, confusion may arise by the loose transfer of a numerical value of the MVP from the genetic to the demographic case, particularly the genetically derived values offered by Franklin (1980) and Soule (1980).
Characteristics of a Hunted Mountain Lion Population in Wyoming
Characteristics of a hunted mountain lion population in the Big Horn Mountains, Wyoming, from June 1981 to July 1983 are reported by the lack of detailed biological data on lions in Wyoming; information previously was limited to general status reports.
Survival Rates of Mountain Lions in Southern Utah
Analysis of longterm telemetry records and estimated survival rates for resident mountain lions using 2 techniques: MICROMORT (Heisey and Fuller 1985) and product-limit (Kurzejeski et al. 1987).
Relationships between a mountain lion population and hunting pressure in western Montana
Murphy, K.M., M.S. 1983 Wildlife Biology Relationships Between a Mountain Lion Population and Hunting Pressure in Western Montana (45 pp.) Director: Bart W. 0"Gara Relationships between hunting
Notes on Cougar Productivity and Life History
Evidence is presented that some females apparently have young as often as 12–15 months, but a 2-year interval appears the rule, and most young apparently remain with their mothers for at least a year.
The Florida Panther and Private Lands
Panther conservation strategies must go beyond traditional land acquisition by government and include economic programs to preserve critical landscapes on private lank.
Conservation Strategy: The Effects of Fragmentation on Extinction
La fragmentation de l'habitat (et des reserves) est la menace la plus serieuse pour la diversite biologique et est la cause fondamentale de la menace actuelle d'extinction