The rapid increase in drug resistance among bacteria is a public health challenge in the 21 century. To combat drug resistance, searching for new broad-spectrum antibiotics is urgent and marine microbial flora may be a potential source. The present study was designed to isolate marine actinomycetes strains (AIAH-01 to AIAH-29) from the soil sediments of different locations of the sundarbans man...

Human activities, such as agriculture and shrimp farming, have influenced the Huizache-Caimanero lagoon system, modifying the landscape and diminishing its natural productivity. Four Landsat MSS (multi-spectral scanner) and TM (thematic mapper) sub-images, taken between 1973 and 1997, were analysed to evaluate trends of changes in the lagoon, saltmarsh, mangrove, agriculture, secondary successi...

The main goal of this study was to reconstruct the Late Pleistocene-Holocene floristic composition in an area of the northern Brazilian Amazonia, comparing the results with other Amazonian localities in order to discuss the factors that have influenced phytophysiognomic changes over this time period. The work in eastern Marajó Island at the mouth of the Amazonas River was approached based on an...

Mangrove forests are one of the most productive and carbon dense ecosystems that are only found at tidally inundated coastal areas. Forest canopy height is an important measure for modeling carbon and biomass dynamics, as well as land cover change. By taking advantage of the flat terrain and dense canopy cover, the present study derived digital surface models (DSMs) using stereo-photogrammetric...

Ecosystem services imply the natural environmental conditions on which human life relies for existence, and their effectiveness formed and sustained by ecosystem and its ecological processes. In newly research reports, they were divided into four groups, i. e., provisioning services, regulation services, cultural services, and supporting services. To assess and valuate ecosystem services is the...

Several species of territorial migratory birds exhibit sexual habitat segregation on their wintering grounds, with some habitats containing mostly males and others mostly females. The objective of this study was to determine if in the American redstart (Setophaga ruticilla) in Jamaica habitat segregation is due to social mechanisms or due to sex-specific habitat specialization. I used habitat-s...

Article history: Received 30 July 2015 Received in revised form 13 April 2016 Accepted 30 April 2016 Available online xxxx There is ongoing interest to develop remote sensingmethods formapping andmonitoring the spatial distribution and biomass ofmangroves. In this study,we develop a suite ofmethods to evaluate the combination of Landsat-8, ALOS PALSAR, and SRTM data for mapping spatial distribu...

Tree parameter determinations using airborne Light Detection and Ranging (LiDAR) have been conducted in many forest types, including coniferous, boreal, and deciduous. However, there are only a few scientific articles discussing the application of LiDAR to mangrove biophysical parameter extraction at an individual tree level. The main objective of this study was to investigate the potential of ...