Landscape analysis and pattern of hurricane impact and circulation on mangrove forests of the Everglades

Doyle, Thomas W.; Krauss, Ken W.; Wells, Christopher J.

doi:10.1672/07-233.1

Cited by 30 publications

(18 citation statements)

References 27 publications

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“…In addition to storm intensity, distance of study sites and orientation with respect to storm track (i.e., backwind vs. forewind) affects the severity of effects (Doyle et al. , , Milbrandt et al. ).…”

Section: Discussionmentioning

confidence: 99%

Hurricane disturbance and forest dynamics in east Caribbean mangroves

Imbert¹

2018

Ecosphere

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Despite low plant diversity and structural simplicity, mangroves offer various ecosystem services to local human communities, including sheltering coastal social‐ecological systems from high‐energy storm damage. The expected increasing intensity of hurricanes due to climate change raises questions concerning the capacity of mangroves to resist and recover from such disturbances. Herein, this study contributes to a better understanding of (1) the relation between storm intensity and damage to mangrove vegetation, (2) the contributions of species‐specific as well as stand‐specific components of mangrove vegetation to ecosystem resistance, and (3) the recovery of pre‐hurricane forest structure through time. The first two issues have been addressed using a stand‐level approach implemented at two east Caribbean mangrove sites in response to three storm events. The third was addressed through a 23‐yr survey of forest recovery following the passage of a high‐energy storm across one of the two study sites. Generally, hurricane damage was primarily controlled by wind velocity, followed by the hydro‐geomorphic context of mangrove forests and species‐specific composition, respectively. The relationship between damage to trees and wind velocity evidenced a sigmoidal trend, with a maximum slope at a wind velocity averaging 130 and 180 km/h for higher vs. lower canopy stands, respectively. The red mangrove, Rhizophora mangle, was significantly less resistant to hurricane damage than was the black mangrove, Avicennia germinans. Unlike the fringe and scrub stands, inner, tall‐canopy stands fully recovered by the end of the study (23 yr). These stands were more resilient because of their growth performances. Finally, the time for east Caribbean mangroves to recover from high‐energy storms seems to fall within the range of the average return time of such disturbances. This may prevent such ecosystems from ever reaching a steady state.

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Section: Discussionmentioning

confidence: 99%

Hurricane disturbance and forest dynamics in east Caribbean mangroves

Imbert¹

2018

Ecosphere

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“…1, see Koenig et al 2007 for details). The Ten Thousand Islands system spans about 14,000 ha, where mangrove forests cover approximately 30 % of the region (Doyle et al 2009). Sites were positioned along the mangrove-lined shorelines of six rivers (Little Wood, Palm, Blackwater, Pumpkin, Wood, and Whitney) and three man-made canals (92 Canal East,92 Canal West,and Faka Union), all of which were selected based primarily on accessibility (see Koenig et al 2007 for details).…”

Section: Study Sitesmentioning

confidence: 99%

Assessing the suitability of mangrove habitats for juvenile Atlantic goliath grouper

et al. 2015

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While juvenile Atlantic goliath grouper, Epinephelus itajara (Lichtenstein, 1822), are known to depend on mangrove root structure, relationships with water properties (e.g., salinity) and depth remain unclear or understudied. Because availability of suitable mangrove habitat has been suggested as the primary bottleneck to the recovery of this threatened species in the US, we investigated habitat associations of juvenile Atlantic goliath grouper with respect to physical water properties within mangrove habitats. Our study was conducted in six coastal rivers and three canals within the Ten Thousand Islands region of southwest Florida. Results suggested that juvenile Atlantic goliath grouper differed in how they associated with specific mangrove habitats based on season and size. We found that smaller juveniles (<340 mm TL) appeared to have stronger associations to physical water characteristics than larger (≥340 mm TL) juveniles. Both large and small juveniles showed the strongest associations with DO (i.e., >3 mg L −1 ) within mangrove habitat. For small juveniles, extreme temperatures influenced habitat association; for large juveniles, extreme salinity influenced distribution. We also found evidence that juvenile Atlantic goliath grouper associated more with natural rivers over man-made canals. The present study has utility for delineating suitable mangrove habitats for protection and potentially in the design of sampling surveys that aim to estimate population abundance.

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“…Ideally, field measurement should be conducted to select various cover types for model training and model validation. However, due to rapid inundation changes, shallow water in the mangrove forests areas, complex morphology, and storm‐induced damage to the transportation facilities, it is difficult to conduct direct field observations in the ENP, especially in the posthurricane years (Doyle et al, ). Instead, several studies showed that high‐resolution images available through Google Earth™ (https://www.google.com/earth/) could be used as alternatives for the same purpose (Han et al, ).…”

Section: Methodsmentioning

confidence: 99%

Hurricane‐Induced Changes in the Everglades National Park Mangrove Forest: Landsat Observations Between 1985 and 2017

Han

Feng

et al. 2018

JGR Biogeosciences

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The Everglades National Park (ENP) has one of the largest mangrove forests in the United States, yet due to lack of data and methods, there has been no multidecadal record of detailed changes in its mangrove forests, not to mention their response to periodic hurricanes. Here, based on remote sensing spectroscopy, multisensor cross calibration, spectral normalization, and pixel unmixing, we develop a stepwise method to map distributions and changes of the ENP mangrove forests and other major wetlands cover types (marshes and hardwood hammocks) over the last three decades. The time series of Landsat-based results indicate statistically significant increasing trend from 1985 to 2017 in the total ENP mangrove coverage with a cumulative increase of 10.2%, which has increased in the inner coastline area but decreased in the outer coastline area. The mangrove coverage also decreased considerably in certain hurricane years (1992, 2005, and 2017), with the largest decrease of 644.9 km 2 (46.5% of the mean mangrove area in normal years) occurring in 1993 after Hurricane Andrew. Yet, these large mangrove die-off areas gradually recovered to prehurricane levels 3-4 years after the passage of major hurricanes. Results also indicate that while the mangrove forests were always damaged by hurricanes, the extent of the damage depended on wind speed, direction, and distance from maximum wind. The findings here could serve as baseline information for future restoration efforts of the ENP ecosystem, and the study also provides a method extendable to other coastal wetland regions.Accurate assessment of the mangrove forests of the ENP and their temporal changes is important to understand how mangrove forests respond to restoration efforts (such as the Comprehensive Everglades Restoration Plan), climate variability, and extreme weather events (such as hurricane perturbations).

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Landscape analysis and pattern of hurricane impact and circulation on mangrove forests of the Everglades

Cited by 30 publications

References 27 publications

Hurricane disturbance and forest dynamics in east Caribbean mangroves

Hurricane disturbance and forest dynamics in east Caribbean mangroves

Assessing the suitability of mangrove habitats for juvenile Atlantic goliath grouper

Hurricane‐Induced Changes in the Everglades National Park Mangrove Forest: Landsat Observations Between 1985 and 2017

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