School of Natural Resources and the Environment ... · to gene flow: 6 distinct . sub-species ......
Transcript of School of Natural Resources and the Environment ... · to gene flow: 6 distinct . sub-species ......
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Ashwin Naidu School of Natural Resources and the Environment, University of Arizona
Ashwin Naidu Lindsay Smythe Ron Thompson Melanie Culver
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A brief history of mountain lions
Current concern – bighorn sheep decline
Investigating mountain lions on Kofa NWR
Current study objectives in SW AZ + P.O.A.
Why the rivers? + How you can help…
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Major historical radiations -One locally distributed -One broad ranging
Culver et al. 2000
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http://www.mountainlion.org/facts_biology.a
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Major restrictions to gene flow: 6 distinct sub-species Puma concolor couguar
Culver et al. 2000
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Mountain lion GPS-tracks (AGFD data, 2007-2009)
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Population Size Estimates (USFWS)
Mule deer
Bighorn sheep
Drought Predation Disease Hunting
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Number of Mountain Lions on Kofa NWR
Diet Composition of Mountain Lions and Bobcats
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Mountain lion scat sample locations (red dots)
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Sex ID Individual ID
DNA extraction
Species ID
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1 3 54
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11 Individual Mountain Lions – Captures Over Time
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Prey Species Identification
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Prey species identification success ~ 100%
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Summary - Implications
11 individuals – Including 6 males, 2 females
Primary prey – Mule deer, Bighorn sheep
Predation risk assessment for bighorn sheep
Designation of management units
Bobcat diet – Prey species
Genetics greatly added to camera and GPS data
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1. Human created barriers = gene flow barriers?
GIS models (estimate) vs. Genetic data (truth)
2. Source Population Identification
3. Population size estimate – Habitat type?
4. Diet/Food Habits – Prey selection behavior?
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SPECIES
SEX
INDIVIDUALS
SOURCE POPULATIONS
RELATEDNESS – KINSHIP/PARENTAGE
DIET
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