Cougar Dispersal Patterns, Metapopulation Dynamics, and Conservation

@article{Sweanor2000CougarDP,
  title={Cougar Dispersal Patterns, Metapopulation Dynamics, and Conservation},
  author={Linda L. Sweanor and Kenneth A. Logan and Maurice G. Hornocker},
  journal={Conservation Biology},
  year={2000},
  volume={14},
  pages={798-808}
}
We examined cougar ( Puma concolor ) dispersal, emigration, and immigration in the San Andres Mountains, New Mexico, from 1985 to 1995 to quantify the effects of dispersal on the local population and surrounding subpopulations. [...] Key Method We captured, tagged, and radio-collared animals to detect the arrival of new immigrants and dispersal characteristics of progeny. We found that cougars in southern New Mexico exhib- ited a metapopulation structure in which cougar subpopulations were separated by expanses…Expand

Figures and Tables from this paper

Space-use, movement and dispersal of sub-adult cougars in a geographically isolated population
TLDR
Although certain habitat characteristics were preferred, transient and localizing cougars used fast-paced nocturnal movements and shortened daytime movements when traversing open habitats to effectively limit their residency and exposure in less-suitable landscapes.
Dispersal movements of subadult cougars from the Black Hills: the notions of range expansion and recolonization
Dispersal plays a vital role in cougar (Puma concolor) population ecology, creating genetic viability and maintaining gene flow between populations. The naturally recolonized cougar population in the
Florida panther dispersal and conservation
We studied dispersal in 27 radio-collared Florida panthers Puma concolor coryi in southern Florida from 1986 to 2000. Male dispersal was longer (mean=68.4 km) than that of females (mean=20.3 km),
GENETIC STRUCTURE OF COUGAR POPULATIONS ACROSS THE WYOMING BASIN: METAPOPULATION OR MEGAPOPULATION
TLDR
Based on measures of gene flow, extinction risk in the near future appears low and Bayesian assignment to population based on individual genotypes showed that cougars in this region were best described as a single panmictic population.
Dispersal behaviour of a polygynous carnivore: do cougars Puma concolor follow source-sink predictions?
TLDR
Results can be used to parameterize source-sink models based on animal behaviour and landscape permeability to conserve exploited carnivores, under conditions of population expansion or recolonization of habitats where Allee effects are a limiting factor.
Cougar Dispersal and Natal Homing in a Desert Environment
Abstract. We present a review of cougar dispersal literature and the first evidence of natural (i.e., unmanipulated) homing behavior by a dispersing male cougar (Puma concolor) that sustained severe
Long-Distance Dispersal of a Female Cougar in a Basin and Range Landscape
Abstract We used Global Positioning System technology to document distance, movement path, vegetation, and elevations used by a dispersing subadult female cougar (Puma concolor) through the
Dynamics of a black bear population within a desert metapopulation
Abstract Understanding metapopulation dynamics in large carnivores with naturally fragmented populations is difficult because of the large temporal and spatial context of such dynamics. We coupled a
Modelling potential dispersal corridors for cougars in midwestern North America using least-cost path methods
Since 1990, cougar (Puma concolor) presence in midwestern North America has been increasing, with >130 confirmed cougar occurrences (i.e., tracks, photos, carcasses) being verified by professional
Density-Dependent Natal Dispersal Patterns in a Leopard Population Recovering from Over-Harvest
TLDR
It is concluded that conservation interventions that facilitated local demographic recovery in the study area also restored dispersal patterns disrupted by unsustainable harvesting, and that this indirectly improved connectivity among leopard populations over a larger landscape.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 30 REFERENCES
Dispersal of juvenile cougars in fragmented habitat
TLDR
Investigation of dispersal of radio-tagged juvenile cougars in a California landscape containing 3 corridors found them to use corridors that are located along natural travel routes, have ample windy cover, include an underpass integrated with roadside fencing at high-speed road crossings, and lack artificial outdoor lighting.
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,
Determining Minimum Habitat Areas and Habitat Corridors for Cougars
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
Mammalian Dispersal Patterns: The Effects of Social Structure on Population Genetics
Mammalian Dispersal Patterns examines the ways that social structure affects population genetics and, in turn, rates of evolution, in mammalian groups. It brings together fieldwork in animal behavior
Characteristics of a Hunted Mountain Lion Population in Wyoming
TLDR
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.
The Metapopulation Approach, Its History, Conceptual Domain, and Application to Conservation
TLDR
This chapter reviews and analyzes the spread of the metapopulation concept to conservation biology and applications and finds that the recent explosion of interest in ecosystem management is quite antithetic to a primary interest in populations and to single species management.
Resilience and conservation of large carnivores in the Rocky Mountains
Large carnivores evolved behaviors and life-history traits that conferred resilience to environmental disturbances at various temporal and spatial scales. We synthesize empirical information for each
Genetics and demography in biological conservation.
TLDR
The practical need in biological conservation for understanding the interaction of demographic and genetic factors in extinction may provide a focus for fundamental advances at the interface of ecology and evolution.
Local extinction in a metapopulation context: an empirical evaluation
TLDR
A modified view of metapopulation dynamics is suggested, in which local extinction is more an incidental than a central feature and regional persistence depends critically upon parameters influencing extinction and colonization rates.
Inbreeding and extinction in a butterfly metapopulation
TLDR
The effect of inbreeding on local extinction in a large metapopulation of the Glanville fritillary butterfly is studied and it is found that extinction risk increased significantly with decreasing heterozygosity, an indication of inmarriage.
...
1
2
3
...