Taxonomic and Conservation Status of the Yuma Mountain Lion

McIvor, Donald E.; Bissonette, John A.; Drew, Gary S.

doi:10.1046/j.1523-1739.1995.9051020.x-i1

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…An uninterrupted distribution of resident individuals apparently was not neceRsary to maintain demographic linkages between disjunct breeding populations as long as they occasionally exchanged individuals. A poor understanding of species distribution and carnivore dispersal behavior may have led to the erroneous description of Puma concolor browni, which was based on a small number of individuals that likely dispersed occasionally from populations of P. c. azteca, P. c koibabensis, and P. c. ca4/ornica and were traveling through poor quality desert habitat (McIvor et al 1995). Today, the South Florida landscape contains anthropogenic barriers ranging from dredged river channels, canals, and highways to cities and expansive agricultural monocultures.…”

Section: Dispersal Characterist[csmentioning

confidence: 99%

The comparative ecology of bobcat, black bear, and Florida panther in South Florida

Maehr

1997

FLMNH

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Comparisons of food habits, habitat use, and movements revealed a low probability for competitive interactions among bobcat (Lynx rufus), Florida panther (Puma concolor coryi), and black bear (Ursus americanus) in South Florida. All three species preferred upland forests but consumed different foods and utilized the landscape in ways that resulted in ecological separation. Further, panthers exhibited crepuscular activity whereas black bears were predominantly diurnal. Diet, movements, and reproduction varied seasonally among species. Subadults of all three species demonstrated extensive dispersal abilities, but only male black bears were documented to have crossed the Caloosahatchee River, a potential landscape barrier that may restrict effective dispersal northward in bobcats and panthers. Because bobcat and black bear in South Florida occur at relatively high densities, anthropogenic changes to the landscape and sea level rise will affect them less severely than panther. The problems associated with the habitation of a naturally fragmented and patchy forest are exacerbated by the conversion of productive habitat types to types that avoided. Another factor that threatens the stability of ecological relations among this carnivore community is the range expansion of the coyote (Canis latrans) into South Florida. This canid is known to exhibit interference competition with bobcats, black bears, and panthers in other parts of North America. The diet of the coyote in Florida may overlap with the diets of the three native carnivores by at least 38 percent and as much as 64 percent. The highest concentrations of black bears and panthers in South Florida coincide with an extensive forest, a landscape feature that accounts for only a small proportion of public land. Increasing forest fragmentation from the Sarasota area southeastward suggests that most public lands are relatively unimportant to the two larger species. Because the demographics of even the smallest of these populations (panther) are shown to be typical of healthy populations, creative management, such as flexible reserve boundaries and the enlistment of private property owners in conservation efforts, may be of more immediate value than symptom-oriented management practices such as genetic introgression.

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Section: Dispersal Characterist[csmentioning

confidence: 99%

The comparative ecology of bobcat, black bear, and Florida panther in South Florida

Maehr

1997

FLMNH

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“…Mountain lions Puma concolor were previously thought to be transient in southwestern Arizona, United States (Shaw et al 1988;Germaine et al 2000). Additionally, there was uncertainty over whether a distinct subspecies, the Yuma puma P. c. brownii, occurred in that region (McIvor et al 1995). Culver et al (2000) subsumed subspecies designations for mountain lions in North America (north of Nicaragua), from 15 subspecies to only 1-P. c. couguar, based on genetic analysis.…”

Section: Introductionmentioning

confidence: 99%

Genetic Analysis of Scats Reveals Minimum Number and Sex of Recently Documented Mountain Lions

Naidu

Smythe

Thompson

et al. 2011

Journal of Fish and Wildlife Management

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Recent records of mountain lions Puma concolor and concurrent declines in desert bighorn sheep Ovis canadensis mexicana on Kofa National Wildlife Refuge in Arizona, United States, have prompted investigations to estimate the number of mountain lions occurring there. We performed noninvasive genetic analyses and identified species, individuals, and sex from scat samples collected from the Kofa and Castle Dome Mountains. From 105 scats collected, we identified a minimum of 11 individual mountain lions. These individuals consisted of six males, two females and three of unknown sex. Three of the 11 mountain lions were identified multiple times over the study period. These estimates supplement previously recorded information on mountain lions in an area where they were historically considered only transient. We demonstrate that noninvasive genetic techniques, especially when used in conjunction with camera-trap and radiocollaring methods, can provide additional and reliable information to wildlife managers, particularly on secretive species like the mountain lion.

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Recent Records of Pumas (Puma Concolor) on the Kofa National Wildlife Refuge, Arizona

Smythe

2008

Journal of the Arizona-Nevada Academy of Science

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Taxonomic and Conservation Status of the Yuma Mountain Lion

Cited by 4 publications

References 19 publications

The comparative ecology of bobcat, black bear, and Florida panther in South Florida

The comparative ecology of bobcat, black bear, and Florida panther in South Florida

Genetic Analysis of Scats Reveals Minimum Number and Sex of Recently Documented Mountain Lions

Recent Records of Pumas (Puma Concolor) on the Kofa National Wildlife Refuge, Arizona

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