• Changes in the Brazilian semi-arid coast reveal key questions to advance research. can have consequences ecological stability and connectivity. Modifications of coastal dynamics impact structure function adjacent marine ecosystems. Semi-arid community under ongoing climate change should be monitored. Beaches nearshore mangroves erosion contrast with mangrove expansion inland. Understanding im...

Funding information Ministerio de Economía y Competitividad, Grant/Award Number: CGL2013-48950C2-1-P and CGL2013-48950-C2-2-P; FPI Grant/Award Number: BES-2014-069398 Some species of the diving beetle tribe Hygrotini (subfamily Hydroporinae) are among the few insects able to tolerate saline concentrations more than twice that of seawater. However, the phylogenetic relationships of the species o...

The genus Sulfobacillus is a cohort of mildly thermophilic or thermotolerant acidophiles within the phylum Firmicutes and requires extremely acidic environments and hypersalinity for optimal growth. However, our understanding of them is still preliminary partly because few genome sequences are available. Here, the draft genome of Sulfobacillus thermosulfidooxidans strain ST was deciphered to ob...

Partial pressures of carbon dioxide ( pCO2) were measured in river and coastal waters on two cruises in November 1999 and June 2000 on the Southwest Florida Shelf. Supersaturation with respect to the atmosphere was observed for most river and nearshore waters in November 1999. pCO2 ranged from 403 Aatm in the Gulf of Mexico to 1280 Aatm in the Shark River. The coastal waters of the Southwest Fl...

This study presents high-resolution data on diel variations of carbonate chemistry in a semi-arid estuary (Jaguaribe River) NE Brazil, which has witnessed decreasing annual rainfall and freshwater inputs due to climate change river damming. In addition, the been suffering with increasing discharges from shrimp farm urban effluents. We monitored surface water atmospheric CO 2 partial pressure ( ...

1 Plant and microbial nitrogen (N) dynamics were examined in soils of an Arctic salt marsh beneath goose-grazed swards and in degraded soils. The degraded soils are the outcome of intensive destructive foraging by geese, which results in vegetation loss and near-irreversible changes in soil properties. The objective of the study was to determine whether vegetation loss led to a decline in micro...

Lake Bonney is one of numerous permanently ice-covered lakes located in the McMurdo Dry Valleys, Antarctica. The perennial ice cover maintains a chemically stratified water column and unlike other inland bodies of water, largely prevents external input of carbon and nutrients from streams. Biota are exposed to numerous environmental stresses, including year-round severe nutrient deficiency, low...

The gulf toadfish, Opsanus beta, is a marine teleost fish with an aglomerular kidney that is highly specialized to conserve water. Despite this adaptation, toadfish have the ability to survive when in dilute hypoosmotic seawater environments. The objectives of this study were to determine the joint role of the kidney and intestine in maintaining osmotic and ionic balance and to investigate whet...

Desiccation tolerance, the ability to survive nearly total dehydration, is a rare strategy for survival and reproduction observed in all taxa. However, the mechanism and regulation of this phenomenon are poorly understood. Correlations between desiccation tolerance and potential effectors have been reported in many species, but their physiological significance has not been established in vivo. ...

SEMENIUK, V., 1994. Predicting the effect of sea-level rise on mangroves in northwestern Australia. Journal of Coastal Research, 10(4), 1050-1076. Fort Lauderdale (Florida), ISSN 0749-0208. The patterns of mangrove distribution in tropical northwestern Australia are related to coastal dynamics, habitats and salinity. They also respond to the sedimentology of the tidal flats that back them, to c...