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|a Hurricane effects on subtropical pine rocklands of the Florida Keys |h [electronic resource] |y English. |
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|a [S.l.] : |b Springer Science + Business Media B.V., |c 2011. |
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|a Climatic Change Volume 107. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a We investigate the effects of Hurricane Wilma’s storm surge (23–24 October
2005) on the dominant tree Pinus elliottii var densa (South Florida slash
pine) and rare plant species in subtropical pine rocklands of the Lower Florida
Keys. We examine the role of elevation on species abundance in 1995 (Hurricane
Betsy in 1965), 2005 (Hurricane Georges in 1998), and 2008 (Hurricane Wilma in
2005) to investigate if hurricanes influence abundance by eliminating plants at lower
elevation on Big Pine Key, the largest island in the Lower Florida Keys.We compare
densities before and after Hurricane Wilma over the 2005–2008 sampling period and
examine the role of elevation on changes in pine and rare species densities three
years after Hurricane Wilma. We use elevation to assess the impact of hurricanes
because elevation determined whether a location was influenced by storm surge
(maximum surge of 2 m) in the Lower Florida Keys, where pine rocklands occur at a maximum elevation of 3 m. In 1995 (30 years after a major storm), elevation
did not explain the abundance of South Florida slash pine or Chamaecrista lineata,
but explained significant variation in abundance of Chamaesyce deltoidea. The latter
two species are rare herbaceous plants restricted to pine rocklands. In 2008, 3 years
after Hurricane Wilma, the positive relationship between elevation and abundance
was strongest for South Florida slash pine, C. deltoidea, and C. lineata. Effects of
Hurricane Wilma were not significant for rare species with wider distribution, occurring
in plant communities adjacent to pine rocklands and in disturbed rocklands.
Our results suggest that hurricanes drive population dynamics of South Florida slash
pine and rare species that occur exclusively in pine rocklands at higher elevations.
Rare species restricted to pine rocklands showed dramatic declines after Hurricane
Wilma and were eliminated at elevations <0.5 m.Widely distributed rare species did
not show significant changes in density after Hurricane Wilma. Abundance increased
with elevation for South Florida slash pine and C. lineata after the hurricane. In an
environment influenced by sea level rise, concrete plans to conserve pine ecosystems
are warranted. Results from this study will help define conservation strategies by
strengthening predictive understanding of plant responses to disturbance in the
backdrop of sea level rise. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a. |z Florida Keys (Fla.) |
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|t Hurricane effects on subtropical pine rocklands of the Florida Keys |
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|a Florida Documents Collection. |
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|a South Florida Collection. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15060993/00001 |y Click here for full text |
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|3 Host material |u http://link.springer.com/article/10.1007%2Fs10584-011-0081-1#page-1 |y Hurricane effects on subtropical pine rocklands of the Florida Keys |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/09/93/00001/Saha et al_2011_Hurricane effects on subtropical pine rocklands of the Florida Keysthm.jpg |
