Publications
Explore WARC's science publications.
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Subsurface controls on historical subsidence rates and associated wetland loss in southcentral Louisiana
Two regional releveling profiles and six tide gauges provide a basis for evaluating recent rates of delta plain subsidence in southcentral Louisiana. Analyses of these records demonstrate close correlations among highest historical rates of subsidence, rapid wetland losses, large volume hydrocarbon production, and probable reactivation of deep subsurface faults. Other researchers have demonstrated
Authors
Robert A. Morton, Noreen A. Buster, M. Dennis Krohn
Carbon budget for a subtropical seagrass dominated coastal lagoon: How important are seagrasses to total ecosystem net primary production?
It has been assumed that because seagrasses dominate macrophyte biomass in many estuaries they also dominate primary production. We tested this assumption by developing three carbon budgets to examine the contribution of autotrophic components to the total ecosystem net primary production (TENPP) of Lower Laguna Madre, Texas. The first budget coupled average photosynthetic parameters with average
Authors
James Kaldy, Christopher P. Onuf, Peter Eldridge, Luis A. Cifuentes
North American box turtles: A natural history
Once a familiar backyard visitor in many parts of the United States and Mexico, the box turtle is losing the battle against extinction. In North American Box Turtles, C. Kenneth Dodd, Jr., has written the first book-length natural history of the twelve species and subspecies of this endangered animal. This volume includes comprehensive information on the species’ evolution, behavior, courtship and
Authors
C. Kenneth Dodd
Carbon isotope composition of ambient CO2 and recycling: a matrix simulation model
The relationship between isotopic composition and concentration of ambient CO2 in a canopy and its associated convective boundary layer was modeled. The model divides the canopy and convective boundary layer into several layers. Photosynthesis, respiration, and exchange between each layer can be simulated by matrix equations. This simulation can be used to calculate recycling; defined here as the
Authors
Leonel da Silveira Lobo Sternberg, Donald L. DeAngelis
Flood pulsing in wetlands: Restoring the natural hydrological balance
The latest cutting-edge research on flood pulsing and wetland restoration in North America.Presenting the latest research from leaders in the field of restoration ecology, Flood Pulsing in Wetlands reflects the current movement to incorporate flood pulsing into wetland restoration efforts. Emphasizing how integral flood pulsing is to successful wetland restoration, the book's contributors provide
Flood pulsing in the regeneration and maintenance of species in riverine forested wetlands of the southeastern United States
No abstract available.
Authors
Beth A. Middleton
Ecological and evolutionary conditions for fruit abortion to regulate pollinating seed-eaters and increase plant production
Coevolved mutualisms, such as those between senita cacti, yuccas, and their respective obligate pollinators, benefit both species involved in the interaction. However, in these pollination mutualisms the pollinator's larvae impose a cost on plants through consumption of developing seeds and fruit. The effects of pollinators on benefits and costs are expected to vary with the abundance of pollinato
Authors
J. Nathaniel Holland, Donald L. DeAngelis
Translocations of amphibians: Proven management method or experimental technique
In an otherwise excellent review of metapopulation dynamics in amphibians, Marsh and Trenham (2001) make the following provocative statements (emphasis added):
If isolation effects occur primarily in highly disturbed habitats, species translocations may be necessary to promote local and regional population persistence. Because most amphibians lack parental care, they areprime candidates for e
Authors
Richard A. Seigel, C. Kenneth Dodd
Multibeam mapping of the Pinnacles region, Gulf of Mexico
Recent USGS mapping shows an extensive deep (~100 m) reef tract occurs on the Mississippi-Alabama outer continental shelf (Figure 1). The tract, known as "The Pinnacles", is apparently part of a sequence of drowned reef complexes along the "40-fathom" shelf edge of the northern Gulf of Mexico (Ludwick and Walton, 1957). It is critical to determine the accurate geomorphology of these deep-reefs bec
Authors
James V. Gardner, Peter Dartnell, Kenneth J. Sulak
Exploring the effect of drought extent and interval on the Florida snail kite: Interplay between spatial and temporal scales
The paper aims at exploring the viability of the Florida snail kite population under various drought regimes in its wetland habitat. The population dynamics of snail kites are strongly linked with the hydrology of the system due to the dependence of this bird species on one exclusive prey species, the apple snail, which is negatively affected by a drying out of habitat. Based on empirical evidence
Authors
Wolf M. Mooij, Robert E. Bennetts, Wiley M. Kitchens, Donald L. DeAngelis
Population dynamics and mutualism: Functional responses of benefits and costs
We develop an approach for studying population dynamics resulting from mutualism by employing functional responses based on density‐dependent benefits and costs. These functional responses express how the population growth rate of a mutualist is modified by the density of its partner. We present several possible dependencies of gross benefits and costs, and hence net effects, to a mutualist as fun
Authors
J. Nathaniel Holland, Donald L. DeAngelis, Judith L. Bronstein