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Filter Total Items: 3509

Canopy disturbance patterns in a bottomland hardwood forest in northeast Arkansas, USA Canopy disturbance patterns in a bottomland hardwood forest in northeast Arkansas, USA

We characterized canopy disturbance patterns in a bottomland hardwood forest and identified linkages to tree species characteristics and interannual flooding patterns. We located 116 newly formed canopy gaps created by 136 gapmakers of 13 species. Over 83% of the gapmakers were snapped or uprooted (i.e., windthrow). The probability of any given gapmaker snapping or uprooting differed...
Authors
Sammy L. King, T. J. Antrobus

Prairie Cajuns and the Cajun Prairie: A history Prairie Cajuns and the Cajun Prairie: A history

No abstract available.
Authors
Malcolm Vidrine, William R. Pontenot, Charles Allen, Bruno Borsari, Larry K. Allain

Potential consequences of climate variability and change on coastal areas and marine resources Potential consequences of climate variability and change on coastal areas and marine resources

No abstract available.
Authors
John C. Field, Donald F. Boesch, Donald Scavia, Robert Buddemeier, Virginia Burkett, Daniel Cayan, Michael Fogarty, Mark Harwell, Robert Howarth, Curt Mason, L.J. Pietrafesa, Denise Reed, Thomas Royer, Asbury Sallenger, Michael Spranger, James G. Titus

Potential consequences of climate variability and change for the Southeastern United States Potential consequences of climate variability and change for the Southeastern United States

No abstract available.
Authors
Virginia Burkett, Ronald Ritschard, Steven McNulty, J. J. O’Brien, Robert C. Abt, James Jones, Upton Hatch, Brian Murray, Shrikant Jagtap, Jim Cruise

An individual-based model of rabbit viral haemorrhagic disease on European wild rabbits (Oryctolagus cuniculus) An individual-based model of rabbit viral haemorrhagic disease on European wild rabbits (Oryctolagus cuniculus)

We developed an individual-based model of Rabbit Viral Hemorrhagic Disease (RVHD) for European wild rabbits (Oryctolagus cuniculus L.), representing up to 1000 rabbits in four hectares. Model output for productivity and recruitment matched published values. The disease was density-dependent and virulence affected outcome. Strains that caused death after several days produced greater...
Authors
John E. Fa, Colin M. Sharples, Diana J. Bell, Donald L. DeAngelis

Applying linear programming to estimate fluxes in ecosystems or food webs: An example from the herpetological assemblage of the freshwater Everglades Applying linear programming to estimate fluxes in ecosystems or food webs: An example from the herpetological assemblage of the freshwater Everglades

We present the application of Linear Programming for estimating biomass fluxes in ecosystem and food web models. We use the herpetological assemblage of the Everglades as an example. We developed food web structures for three common Everglades freshwater habitat types: marsh, prairie, and upland. We obtained a first estimate of the fluxes using field data, literature estimates, and...
Authors
James E. Diffendorfer, Paul M. Richards, George H. Dalrymple, Donald L. DeAngelis

The importance of propagule establishment and physical factors in mangrove distributional patterns in a Costa Rican estuary The importance of propagule establishment and physical factors in mangrove distributional patterns in a Costa Rican estuary

Establishment of Laguncularia racemosa, Avicennia germinans, and A. bicolor was measured along intertidal gradients (mud bank (MB), lower intertidal (LI), and upper intertidal (UI)) on point bars and islands in a Costa Rican tropical estuary. Successful establishment showed the following order — Laguncularia: LI (73%)>MB (52%)>UI (18%), with UI significantly lower than LI and MB...
Authors
P. Delgado, P.F. Hensel, J.W. Day
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