Now showing items 31-40 of 947
Forecasting effects of sea-level rise and windstorms on coastal and inland ecosystems
(Ecological Society of America, 2008-06)
We identify a continental-scale network of sites to evaluate how two aspects of climate change – sea-level rise and intensification of windstorms – will influence the structure, function, and capacity of coastal and inland ...
Testing isosource : stable isotope analysis of a tropical fishery with diverse organic matter sources
(Ecological Society of America, 2006-02)
We sampled consumers and organic matter sources (mangrove litter, freshwater swamp-forest litter, seagrasses, seagrass epiphytes, and marine particulate organic matter [MPOM]) from four estuaries on Kosrae, Federated States ...
Thinking outside the channel : modeling nitrogen cycling in networked river ecosystems
(Ecological Society of America, 2010-09-08)
Agricultural and urban development alters nitrogen and other biogeochemical cycles in rivers worldwide. Because such biogeochemical processes cannot be measured empirically across whole river networks, simulation models ...
Biomass and toxicity responses of poison ivy (Toxicodendron radicans) to elevated atmospheric CO2 : reply
(Ecological Society of America, 2008-02)
Aggregate measures of ecosystem services : can we take the pulse of nature?
(Ecological Society of America, 2005-02)
National scale aggregate indicators of ecosystem services are useful for stimulating and supporting a broad public discussion about trends in the provision of these services. There are important considerations involved in ...
The Arctic freshwater system : changes and impacts
(American Geophysical Union, 2007-11-20)
Dramatic changes have been observed in the Arctic over the last century. Many of these involve the storage and cycling of fresh water. On land, precipitation and river discharge, lake abundance and size, glacier area and ...
Carbon, water, and energy fluxes in a semiarid cold desert grassland during and following multiyear drought
(American Geophysical Union, 2010-11-18)
The net exchanges of carbon dioxide, water vapor, and energy were examined in a perennial Colorado Plateau grassland for 5 years. The study began within a multiyear drought and continued as the drought ended. The grassland ...
Soil respiration at mean annual temperature predicts annual total across vegetation types and biomes
(Copernicus Publications on behalf of the European Geosciences Union, 2010-07-09)
Soil respiration (SR) constitutes the largest flux of CO2 from terrestrial ecosystems to the atmosphere. However, there still exist considerable uncertainties as to its actual magnitude, as well as its spatial and interannual ...
Depleted 15N in hydrolysable-N of arctic soils and its implication for mycorrhizal fungi–plant interaction
Uptake of nitrogen (N) via root-mycorrhizal associations accounts for a significant portion of total N supply to many vascular plants. Using stable isotope ratios (δ15N) and the mass balance among N pools of plants, ...
Detecting p53 family proteins in haemocytic leukemia cells of Mytilus edulis from Pictou Harbour, Nova Scotia, Canada
(National Research Council Canada, 2005-09-01)
Evaluating patterns of expression of p53-related proteins in cells is a novel approach in defining environmentally linked diseases. We have examined the induction of haemocytic leukemia in Mytilus edulis by municipal and ...