| NSF Org: |
DEB Division Of Environmental Biology |
| Recipient: |
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| Initial Amendment Date: | March 24, 1995 |
| Latest Amendment Date: | March 24, 1995 |
| Award Number: | 9423146 |
| Award Instrument: | Standard Grant |
| Program Manager: |
Mark Courtney
DEB Division Of Environmental Biology BIO Directorate for Biological Sciences |
| Start Date: | May 1, 1995 |
| End Date: | April 30, 1996 (Estimated) |
| Total Intended Award Amount: | $8,000.00 |
| Total Awarded Amount to Date: | $8,000.00 |
| Funds Obligated to Date: |
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| History of Investigator: |
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| Recipient Sponsored Research Office: |
660 S MILL AVENUE STE 204 TEMPE AZ US 85281-3670 (480)965-5479 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
660 S MILL AVENUE STE 204 TEMPE AZ US 85281-3670 |
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Performance Congressional District: |
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| Unique Entity Identifier (UEI): |
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| Parent UEI: |
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| NSF Program(s): | POPULATION DYNAMICS |
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| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.074 |
ABSTRACT
9423146 DOUGLAS Large-scale geographic changes have occurred in western North America as a result of geologic upheaval and climate. These have spatially isolated western fishes to produce patterns of geographic variation within and between lineages. Congruence between pattern and process will be tested by using as a model organism a morphologically variable, widespread, western minnow (Rhinichthys osculus). Forty-five populations (50 individuals each) will be sampled from 10 different river systems (which form five different basins, each with known geological histories). Four other species will be used as comparisons for analyses. Seven individuals per population will be evaluated for genetic diversity by evaluating the DNA of their respective cellular mitochondria. Data will be evaluated using (a) traditional population genetic and geographic variation techniques, and (b) newer techniques which evaluate ancestor-descendant relationships among populations. Results from this study will provide a generalized model of geographic affinity between populations of a widely distributed fish species in western North America. This model can then be evaluated for congruence with other widespread (but less easily sampled) species of western fishes.
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