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Biology

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Florida

Articles 1 - 5 of 5

Full-Text Articles in Life Sciences

2017_Murphy Et Al._Food Habits Of A Small Fl Bear Population In Endangered Ecosystem.Pdf, Sean M. Murphy, Wade A. Ulrey, Joseph M. Guthrie, David S. Maehr, Warren G. Abrahamson Ii, Sutton C. Maehr, John J. Cox Jun 2017

2017_Murphy Et Al._Food Habits Of A Small Fl Bear Population In Endangered Ecosystem.Pdf, Sean M. Murphy, Wade A. Ulrey, Joseph M. Guthrie, David S. Maehr, Warren G. Abrahamson Ii, Sutton C. Maehr, John J. Cox

Warren G. Abrahamson, II

The Highlands–Glades subpopulation (HGS) of Florida, USA, black bears (Ursus americanus floridanus) is small, genetically depauperate, and resides primarily within the endangered Lake Wales Ridge ecosystem, which has lost >85% of native habitat to land development. Habitat loss can reduce availability of critical natural foods and cause bears to increase reliance on anthropogenic foods (i.e., human-sourced); lands supporting the HGS are expected to lose >50% of remaining Florida black bear habitat in coming decades. We used scat analysis to describe seasonal food habits, investigate potential dietary responses to food shortages, and inform habitat conservation and human–bear conflict management. …

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Population Genetic Structure In Nolina Brittoniana (Agavaceae), A Plant Endemic To The Central Ridges Of Florida, Rebecca W. Dolan, Rebecca Yahr, Eric S. Menges Mar 2010

Population Genetic Structure In Nolina Brittoniana (Agavaceae), A Plant Endemic To The Central Ridges Of Florida, Rebecca W. Dolan, Rebecca Yahr, Eric S. Menges

Rebecca W. Dolan

Nolina brittoniana is endemic to the central ridges of peninsular Florida. Its scrub and sandhill habitats have suffered extensive anthropogenic modification. Analysis of isozymes from populations throughout its range revealed less genetic variation than generally reported for endemic plants. Populations were well differentiated, with significant clines in allele frequency along the north-south axis of distribution. Pair-wise F-statistics calculated at four levels of population geographic substructure revealed that current and inferred historical habitat patches had similar genetic structure. We found no evidence of recent bottlenecks or changes in genetic structure due to habitat loss and fragmentation, consistent with populations having always …

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Leaf Traits And Leaf Life Spans Of Two Xeric-Adapted Palmettos, Warren Abrahamson Dec 2006

Leaf Traits And Leaf Life Spans Of Two Xeric-Adapted Palmettos, Warren Abrahamson

Warren G. Abrahamson, II

Plants of nutrient-poor, arid environments often have leaf traits that include small size, sclerophylly, long life span, low nutrient concentration, and low photosynthetic rate. Hence, the success of two large-leaved palmettos in peninsular Florida’s seasonally xeric, nutrient-impoverished uplands seems anomalous, given that their leaves are orders of magnitude larger than the leaves of co-occurring species. An examination of leaf traits and leaf life spans across four vegetative associations differing in available light using a 16-yr data set showed that leaves of Serenoa repens and Sabal etonia had low rates of leaf production coupled with long leaf life spans reaching 3.5 …

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Long-Term Patterns Of Acorn Production For Five Oak Species In Xeric Florida Uplands, Warren G. Abrahamson Ii, J.N. Layne Dec 2002

Long-Term Patterns Of Acorn Production For Five Oak Species In Xeric Florida Uplands, Warren G. Abrahamson Ii, J.N. Layne

Warren G. Abrahamson, II

No abstract provided.

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Post-Fire Recovery Of Acorn Production By Four Oak Species In Southern Ridge Sandhill Association In South-Central Florida, Warren Abrahamson, J.N. Layne Dec 2001

Post-Fire Recovery Of Acorn Production By Four Oak Species In Southern Ridge Sandhill Association In South-Central Florida, Warren Abrahamson, J.N. Layne

Warren G. Abrahamson, II

No abstract provided.

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