Publications
Explore WARC's science publications.
Filter Total Items: 3510
Ecological genetics at the USGS National Wetlands Research Center Ecological genetics at the USGS National Wetlands Research Center
The Ecological Genetics Program at the USGS National Wetlands Research Center (NWRC) employs state-of-the-art DNA fingerprinting technologies in characterizing critical management aspects of the population biology of species of concern (fig. 1). The overarching themes of this program have been (1) the critical role that genetic diversity plays in maintaining population viability and (2)...
Authors
Steven Travis
Microbial ecology in reef sediments of Biscayne National Park Microbial ecology in reef sediments of Biscayne National Park
No abstract available.
Authors
John T. Lisle, Chris Reich
Microbiology and public beach safety: integrated science for the protection of public health Microbiology and public beach safety: integrated science for the protection of public health
No abstract available.
Authors
Christine A. Kellogg, John T. Lisle
Emergence of ratio-dependent and predator-dependent functional responses for pollination mutualism and seed parasitism Emergence of ratio-dependent and predator-dependent functional responses for pollination mutualism and seed parasitism
Prey (N) dependence [g(N)], predator (P) dependence [g(P) or g(N,P)], and ratio dependence [f(P/N)] are often seen as contrasting forms of the predator's functional response describing predator consumption rates on prey resources in predator–prey and parasitoid–host interactions. Analogously, prey-, predator-, and ratio-dependent functional responses are apparently alternative functional...
Authors
Donald L. DeAngelis, J. Nathaniel Holland
Remote sensing methods for mapping the onset and progression of spartina alterniflora marsh dieback in coastal Louisiana Remote sensing methods for mapping the onset and progression of spartina alterniflora marsh dieback in coastal Louisiana
No abstract available.
Authors
Amina Rangoonwala, Elijah Ramsey III, Gene Nelson
Multimodeling: new approaches for linking ecological models Multimodeling: new approaches for linking ecological models
The Everglades region of South Florida presents one of the major natural system management challenges facing the United States. With its assortment of alligators, crocodiles, manatees, panthers, large mixed flocks of wading birds, highly diverse subtropical flora, and sea of sawgrass, the ecosystem is unique in this country (Davis and Ogden 1994). The region is also perhaps the largest...
Authors
Louis J. Gross, Donald L. DeAngelis
Constraining rates and trends of historical wetland loss, Mississippi River Delta Plain, south-central Louisiana Constraining rates and trends of historical wetland loss, Mississippi River Delta Plain, south-central Louisiana
The timing, magnitude, and rate of wetland loss were described for five wetland-loss hotspots in the Terrebonne Basin of the Mississippi River delta plain. Land and water areas were mapped for 34 dates between 1956 and 2004 from historical National Wetlands Inventory (NWI) datasets, aerial photographs, and Landsat Thematic Mapper (TM) satellite images. Since 1956, the emergent land area...
Authors
Julie Bernier, Robert A. Morton, John A. Barras
Archive of digital boomer and chirp seismic reflection data collected during USGS Cruise 03SCC03 in Lake Pelto and Timbalier and Terrebonne Bays, Louisiana, September 2003 Archive of digital boomer and chirp seismic reflection data collected during USGS Cruise 03SCC03 in Lake Pelto and Timbalier and Terrebonne Bays, Louisiana, September 2003
No abstract available.
Authors
Karynna Calderon
Archive of digital boomer and chirp seismic reflection data collected during USGS Cruise 04SCC01 in Terrebonne, Timbalier, and Barataria Bays and Lake Pelto, Louisiana, June and July 2004 Archive of digital boomer and chirp seismic reflection data collected during USGS Cruise 04SCC01 in Terrebonne, Timbalier, and Barataria Bays and Lake Pelto, Louisiana, June and July 2004
No abstract available.
Authors
Karynna Calderon
Triazines Triazines
Abstract not supplied at this time
Authors
Timothy S. Gross, R. Heath Rauschenberger
Regional and local species richness in an insular environment: Serpentine plants in California Regional and local species richness in an insular environment: Serpentine plants in California
We asked how the richness of the specialized (endemic) flora of serpentine rock outcrops in California varies at both the regional and local scales. Our study had two goals: first, to test whether endemic richness is affected by spatial habitat structure (e.g., regional serpentine area, local serpentine outcrop area, regional and local measures of outcrop isolation), and second, to...
Authors
S. Harrison, H.D. Safford, J.B. Grace, J.H. Viers, K.F. Davies
A multivariate model of plant species richness in forested systems: Old-growth montane forests with a long history of fire A multivariate model of plant species richness in forested systems: Old-growth montane forests with a long history of fire
Recently, efforts to develop multivariate models of plant species richness have been extended to include systems where trees play important roles as overstory elements mediating the influences of environment and disturbance on understory richness. We used structural equation modeling to examine the relationship of understory vascular plant species richness to understory abundance, forest...
Authors
D.C. Laughlin, J.B. Grace