Cavanaugh et al. (1) report conclusive evidence of poleward expansion of mangroves at the northern limit of their historic range on the east coast of Florida and associate the expansion to a reduction in the frequency of extreme cold events. We agree with their assertion that mangrove expansion has occurred in eastern Florida, resulting from a lack of extreme freeze perturbations since 1984 (2,...

the bias against mangrove areas in siting fish farms prompted a comparison of the cost structure and yield performance in upland and mangrove locations. tools utilized included descriptive statistics, budgetary and cash flow analyses and profitability ratios. empirical results revealed that substantial revenue could be realized from both farms. while the upland farms yielded average gross reven...

Aedes vigilax (Skuse), a nuisance and disease vector, is prolific in intertidal wetlands in Australia. Aedine mosquitoes oviposit directly onto substrate. The eggshells are relatively stable spatially and temporally, providing an estimate of mosquito larval production. The aims of the research were to compare, at a general level, oviposition in mangroves and saltmarshes, and to compare oviposit...

In remote sensing, traditional methodologies for image classification consider the spectral values of a pixel in different image bands. More recently, classification methods have used neighboring pixels to provide more information. In the present study, we used these more advanced techniques to discriminate between mangrove and non-mangrove regions in the Gulf of California of northwestern Mexi...

Understanding the relationship between the size of mangrove structural features and the optimum image pixel size is essential to support effective mapping activities in mangrove environments. This study developed a method to estimate the optimum image pixel size for accurately mapping mangrove features (canopy types and features (gaps, tree crown), community, and cover types) and tested the app...

Kandelia candel (L.) Druce, the dominant mangrove species on the west coast of northern Taiwan, has three distinct growth forms. To elucidate whether the growth of the dwarf form of K. candel is related to nutrient and water availability, we analyzed nutrient contents (N, P, K, Ca, Mg, Na) and carbon isotope ratios (δC) of leaves of four K. candel populations differing in canopy height. The obj...

A study on antibiotic resistance of heterotrophic bacteria and physicochemical characteristics of water and sediment in mangrove environment of Muthupettai, Southeast coast of India was carried out during April 2006 March 2007. Six stations in and around the mangrove sites were selected for sampling and the following parameters were recorded at monthly intervals temperature, pH, salinity, disso...

Indonesia has a huge potential of mangrove resources. In 2010, the mangrove area was 5,209,543.16 hectares and the area was decline rapidly to 2,496,185 hectares in 2016. This figure shows depletion and degradation of mangrove ecosystem and therefore, the capacities to supply human needs are decline because of the intense pressure from many activities in the development of coastal zone. The dat...

Airborne light detection and ranging (LIDAR) measurements derived before and after Hurricanes Katrina and Wilma (2005) were used to quantify the impact of hurricanes and lightning strikes on the mangrove forest at two sites in Everglades National Park (ENP). Analysis of LIDAR measurements covering 61 and 68 ha areas of mangrove forest at the Shark River and Broad River sites showed that the pro...

Mangrove communities are tropical systems which have fewer species than tropical forests, especially in Latin America and display a single architecture, usually lacking the various strata commonly found in other forest ecosystems. The identification of mangrove communities by orbital data is not a difficult task but the most interesting challenge is to identify themselves by the dominant specie...