Postfire Vegetation Recovery in Highland Pine Forests of the Dominican Republic

Postfire Vegetation Recovery in Highland Pine Forests of the Dominican Republic

We surveyed postfire vegetation at five sites at high elevations (> 2000 m) in the Cordillera Central, Dominican Republic. Highlands of the Cordillera Central are dominated by a single pine species, Pinus occidentalis, but plant communities are rich with endemics and conservation and fire man...

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Veröffentlicht in:Biotropica. - Wiley. - 40(2008), 4, Seite 412-421
1. Verfasser: Kennedy, Lisa M. (VerfasserIn)
Weitere Verfasser: Horn, Sally P.
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Biotropica
Schlagworte:Baccharis myrsinites Ericaceae fire ecology Pinus occidentalis tropical montane forest Biological sciences Health sciences Physical sciences
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520 |a We surveyed postfire vegetation at five sites at high elevations (> 2000 m) in the Cordillera Central, Dominican Republic. Highlands of the Cordillera Central are dominated by a single pine species, Pinus occidentalis, but plant communities are rich with endemics and conservation and fire management efforts in these systems are ongoing. The burns were 2-7 yr in age and had consumed nearly all shrub crowns. Pines suffered high mortality (> 50%, all sites combined), but shrubs resprouted at high rates (88%, N = 957) after fire. All shrub taxa produced basal resprouts; eight of 11 shrub taxa measured had resprouting rates > 90 percent, while Baccharis myrsinites had the lowest (56%). Most taxa grew to prefire height quickly (within 5-7 yr), with regrowth of stem diameters lagging behind. Patterns and rates of shrub recovery resembled those documented in high elevation shrublands in Costa Rica and Brazil. Pinus occidentalis does not resprout, but larger individuals can survive fire. Survival increases dramatically when trees attain > 13-cm dbh, when bark becomes thick enough to protect cambial tissue. Overall, pines are regenerating much more slowly than shrubs, but seedling establishment varied considerably between sites. Frequent fires may cause a decline in pines and an increase in shrub-or grass-dominated communities. Succession in these high elevation fire-dependent pine forests favors taxa already present in the preburn vegetation, with woody composition changing little after fire, in contrast to lower-elevation cloud forest, where postfire vegetation has been shown to bear little resemblance to mature forest even after several years. 
540 |a Copyright 2008 Association for Tropical Biology and Conservation Inc. 
650 4 |a Baccharis myrsinites 
650 4 |a Ericaceae 
650 4 |a fire ecology 
650 4 |a Pinus occidentalis 
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650 4 |a Biological sciences  |x Biology  |x Botany  |x Dendrology  |x Shrubs 
650 4 |a Biological sciences  |x Biology  |x Botany  |x Plant ecology  |x Vegetation 
650 4 |a Health sciences  |x Health and wellness  |x Public health  |x Disasters  |x Fires  |x Wildfires  |x Forest fires 
650 4 |a Physical sciences  |x Earth sciences  |x Geography  |x Geomorphology  |x Topography  |x Highlands 
650 4 |a Biological sciences  |x Biology  |x Biological taxonomies  |x Taxa 
650 4 |a Biological sciences  |x Ecology  |x Population ecology  |x Synecology  |x Biocenosis  |x Plant communities  |x Forests  |x Coniferous forests 
650 4 |a Biological sciences  |x Biology  |x Botany  |x Plants 
650 4 |a Biological sciences  |x Ecology  |x Population ecology  |x Synecology  |x Biocenosis  |x Plant communities  |x Forests  |x Cloud forests 
650 4 |a Health sciences  |x Health and wellness  |x Public health  |x Disasters  |x Fires  |x Wildfires  |x Grassland fires 
650 4 |a Biological sciences  |x Biology  |x Botany  |x Dendrology  |x Trees  |x Evergreen trees  |x Conifers  |x Pine trees 
650 4 |a Biological sciences  |x Biology  |x Botany  |x Dendrology  |x Shrubs 
650 4 |a Biological sciences  |x Biology  |x Botany  |x Plant ecology  |x Vegetation 
650 4 |a Health sciences  |x Health and wellness  |x Public health  |x Disasters  |x Fires  |x Wildfires  |x Forest fires 
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650 4 |a Biological sciences  |x Ecology  |x Population ecology  |x Synecology  |x Biocenosis  |x Plant communities  |x Forests  |x Cloud forests 
650 4 |a Health sciences  |x Health and wellness  |x Public health  |x Disasters  |x Fires  |x Wildfires  |x Grassland fires  |x Tropical Biology 
655 4 |a research-article 
700 1 |a Horn, Sally P.  |e verfasserin  |4 aut 
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