Here we report N(2)O emission results for freshwater marshes isolated from human activities at the Sanjiang Experimental Station of Marsh Wetland Ecology in northeastern China. These results are important for us to understand N(2)O emission in natural processes in undisturbed freshwater marsh. Two adjacent plots of Deyeuxia angustifolia freshwater marsh with different water regimes, i.e., seaso...

Mangroves are species of halophytic intertidal trees and shrubs derived from tropical genera and are likely delimited in latitudinal range by varying sensitivity to cold. There is now sufficient evidence that mangrove species have proliferated at or near their poleward limits on at least five continents over the past half century, at the expense of salt marsh. Avicennia is the most cold-toleran...

The establishment of parasites with complex life cycles is generally thought to be regulated by free-living species richness and the stability of local ecological interactions. In this study, we test the prediction that stable host communities are prerequisite for the establishment of complex multi-host parasite life cycles. The colonization of naïve killifish, Fundulus heteroclitus, by parasit...

There are anecdotal reports that upstream water withdrawals over the past 50 years have altered the salinity structure of coastal Georgia estuaries. Since few consistent salinity records exist, it may be possible to use shifts in vegetation to document salinity change. The purpose of this study was to use aerial photographs and GIS analysis to determine if the location of the brackish water int...

Given their location in the intertidal zone, coastal salt marshes will be one of the ecosystems first affected by sea level rise. As sea level rise increases, marshes will begin to migrate inland if surrounding topography and land use provide suitable habitat. The question remains whether or not this migration inland will provide enough new habitat to sustain current marsh area as the seaward e...

Gastroenterologist and authority on coeliac disease. He was born in Bristol, UK, May 15, 1937, died of prostate cancer Shilton, July 12, 2021, aged 84 years. Many clinician scientists can identify their publications that either established reputation or clearly embodied contribution to medicine. In the case gastroenterologist Michael Marsh it a paper “gluten, major histocompatibility complex, s...

BACKGROUND Celiac disease (CD) is an immunologic enteropathy triggered by the intake of gluten. It is thought that the enteropathy impairs gut function and absorption. OBJECTIVE We assessed the zinc-absorption capacity and small-bowel integrity in children with CD. DESIGN Children in whom a diagnosis of CD was considered clinically and either confirmed (n = 16; Marsh score ≥3) or not (n = 2...

The mange mite Notoedres muris is reported from a new host, the marsh rat (Holochilus brasiliensis) from Argentina. The infection involved alopecia and encrustations on the ears and face, and was treated successfully by a subcutaneous injection of ivermectin. The new record suggests that Notoedres muris has become self-maintaining within this marsh rat population.