LEADER 00000nam  2200349   4500 
001    AAI3431739 
005    20111103091524.5 
008    111103s2010    ||||||||||||||||| ||eng d 
020    9781124325958 
035    (UMI)AAI3431739 
040    UMI|cUMI 
100 1  Vynne, Carly 
245 10 Landscape use by wide-ranging mammals of the Brazilian 
       Cerrado 
300    144 p 
500    Source: Dissertation Abstracts International, Volume: 71-
       12, Section: B, page: 7193 
500    Adviser: Samuel J. Wasser 
502    Thesis (Ph.D.)--University of Washington, 2010 
520    Conserving animals beyond parks is critical since even the
       largest reserves may be too small to maintain viable 
       populations for many wide-ranging species. Identification 
       of sites that will promote population persistence is a 
       high priority, in particular, for protected areas that 
       reside in regions of otherwise extensive habitat loss. 
       This is the case for Emas National Park, a small but 
       important protected area located in the Brazilian Cerrado.
       In order to determine the relative importance of resources
       found within the Park, as well as to identify key sites 
       outside the reserve, I used scat detection dogs to survey 
       for five large mammals of conservation concern: maned wolf
       (Chrysocyon brachyurus), puma (Puma concolor ), jaguar 
       (Panthera onca), giant anteater ( Myrmecophaga tridactyla),
       and giant armadillo (Priodontes maximus). I quantified the
       effectiveness of dog teams to determine species presence 
       and evaluated how each of the species were distributed 
       within and around Emas National Park. I assessed how 
       measurable sample quality factors influence DNA 
       amplification success as well as Measurable hormone 
       quantities and found that amount of odor and moisture 
       (indicating freshness) predicted mtDNA amplification 
       success, as well as mean hormone levels. To determine how 
       each of the species were using resources, I fit resource 
       selection probability models, which show how each species 
       uses sites relative to those available. Finally, to 
       evaluate how ranging behavior may influence physiological 
       health in maned wolves, which are nearly endemic to the 
       Cerrado, I measured fecal glucocorticoids, indicative of 
       stress, thyroid hormone, indicative of nutritional status,
       and androgens, indicative of reproductive health. 
       Glucocorticoid concentrations increased with distance from
       natural habitat patches and during times of peak harvest 
       activity. Thyroid hormone levels were higher, indicating 
       good nutritional status, in areas with more cropland, thus
       supporting my hypothesis that maned wolves select 
       agricultural areas due to availability of rodents. 
       Progestin levels in females were higher inside than 
       outside the Park, suggesting that females have higher 
       reproductive success in the Park compared to those 
       residing outside the Park. These analyses illustrate the 
       landscape features that must be maintained if we are to 
       promote persistence of diverse, wide-ranging species 
590    School code: 0250 
650  4 Agriculture, Wildlife Conservation 
650  4 Biology, Ecology 
650  4 Biology, Conservation 
690    0284 
690    0329 
690    0408 
710 2  University of Washington 
773 0  |tDissertation Abstracts International|g71-12B 
856 40 |uhttp://pqdd.sinica.edu.tw/twdaoapp/servlet/
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