Now showing items 31-40 of 86
Production and export of dissolved C in arctic tundra mesocosms: the roles of vegetation and water flow
(Kluwer Academic Publishers; Springer Science+Business Media, 2002-09)
To better understand carbon (C) cycling in arctic tundra we measureddissolved C production and export rates in mesocosms of three tundra vegetationtypes: tussock, inter-tussock and wet sedge. Three flushing frequencies ...
Biotic Control of Calcium Cycling in Northern Hardwood Forests: Acid Rain and Aging Forests
(Springer-Verlag; Springer-Verlag New York, Inc., 2003-06)
The Leiognathus splendens complex (Perciformes: Leiognathidae) with the description of a new species, Leiognathus kupanensis Kimura and Peristiwady
(Springer-Verlag; The Ichthyological Society of Japan, 2005-08)
Taxonomic analysis of a group of morphologically similar ponyfishes (Perciformes: Leiognathidae) establishes the Leiognathus splendens complex comprising four valid species: L. jonesi James, 1971, widely distributed in the ...
Changes in Sr/Ca, Ba/Ca and 87Sr/86Sr ratios between trophic levels in two forest ecosystems in the northeastern U.S.A.
(Kluwer Academic Publishers; Springer Science+Business Media, 2000-04)
The variability and biologicalfractionation of Sr/Ca, Ba/Ca and 87 Sr/ 86 Srratios were studied in a soil–plant–invertebrate–bird food chain in two forested ecosystems withcontrasting calcium availability in the ...
Male-Driven Evolution in Closely Related Species of the Mouse Genus Mus
(Springer-Verlag; Springer Science+Business Media, Inc., 2005-07)
Recently, other researchers have found that closely related primate species had a lower male-to-female mutation rate ratio (α) than distantly related species. To determine if this is a general phenomenon affecting other ...
Effects of Management Intensity and Season on Arboreal Ant Diversity and Abundance in Coffee Agroecosystems
(Kluwer Academic Publishers; Springer, 2006-01)
Agricultural intensification decreases arthropod predator diversity, abundance and population stability, and may affect interactions between top predators and their arthropod prey – ultimately affecting ecosystem services. ...
Inefficient purifying selection: the mammalian Y chromosome in the rodent genus Mus
(Springer-Verlag; Springer Science+Business Media, Inc., 2006-01)
Two related genes with potentially similar functions, one on the Y chromosome and one on the X chromosome, were examined to determine if they evolved differently because of their chromosomal positions. Six hundred fifty-seven ...
Broad scaling region in a spatial ecological system
(Wiley Subscription Services, Inc., A Wiley Company, 2003-05)
The ubiquity of scale-free patterns in ecological systems has raised the possibility that these systems operate near criticality. Critical phenomena (CP) require the tuning of parameters and typically exhibit a narrow ...
Dissolution of wollastonite during the experimental manipulation of Hubbard Brook Watershed 1
(Kluwer Academic Publishers; Springer Science+Business Media, 2004-02)
Powdered and pelletized wollastonite (CaSiO 3 ) was applied to an 11.8 ha forested watershed at the Hubbard Brook Experimental Forest (HBEF) in northern New Hampshire, U.S.A. during October of 1999. The dissolution of ...