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Filter Total Items: 3532

Seagrass responses to and recovery (?) from seven years of brown tide Seagrass responses to and recovery (?) from seven years of brown tide

Most harmful algal blooms are relatively short, violent paroxysms to aquatic systems. The Texas brown tide was unique in its 7-year domination of upper Laguna Madre wherein it reduced light penetrating 1 m from 31 to 63% on an annual basis between June 1990 and May 1997. In response, seagrasses declined in biomass in deep areas for two years. Over the next three years, bare areas opened...
Authors
C.P. Onuf

The effects of gap size and disturbance type on invasion of wet pine savanna by cogongrass, Imperata cylindrica (Poaceae) The effects of gap size and disturbance type on invasion of wet pine savanna by cogongrass, Imperata cylindrica (Poaceae)

Cogongrass is a nonindigenous species perceived to threaten native communities of the southeastern United States through modification of species composition and alteration of community processes. To examine how gap size and disturbance type influence the invasion of wet pine savannas by cogongrass, we performed three field experiments to evaluate the response of cogongrass seeds and...
Authors
S.E. King, J.B. Grace

Mangrove peat analysis and reconstruction of vegetation history at the Pelican Cays, Belize Mangrove peat analysis and reconstruction of vegetation history at the Pelican Cays, Belize

The substrate beneath mangrove forests in the Pelican Cays complex is predominately peat composed mainly of mangrove roots. Leaves and wood account for less than 20% of the peat mass. At Cat Cay, the depth of the peat ranges from 0.2 m along the shoreline to 1.65 m in the island center, indicating that the island has expanded horizontally as well as vertically through below-ground...
Authors
K.L. McKee, P.L. Faulkner

Diversity, distribution, and conservation status of the native freshwater fishes of the southern United States Diversity, distribution, and conservation status of the native freshwater fishes of the southern United States

The Southeastern Fishes Council Technical Advisory Committee reviewed the diversity, distribution, and status of all native freshwater and diadromous fishes across 51 major drainage units of the southern United States. The southern United States supports more native fishes than any area of comparable size on the North American continent north of Mexico, but also has a high proportion of...
Authors
Melvin L. Warren, Brooks M. Burr, Stephen J. Walsh, Henry L. Bart, Robert C. Cashner, David A. Etnier, Byron J. Freeman, Bernard R. Kuhajda, Richard L. Mayden, Henry W. Robison, Stephen T. Ross, Wayne C. Starnes

Structure and composition of oligohaline marsh plant communities exposed to salinity pulses Structure and composition of oligohaline marsh plant communities exposed to salinity pulses

The response of two oligohaline marsh macrophyte communities to pulses of increased salinity was studied over a single growing season in a greenhouse experiment. The plant communities were allowed a recovery period in freshwater following the pulse events. The experimental treatments included: (1) salinity influx rate (rate of salinity increase from 0 to 12 gl-1); (2) duration of...
Authors
R.J. Howard, I.A. Mendelssohn

Fire ecology in the southeastern United States Fire ecology in the southeastern United States

Fire has played an important role in the structure of natural ecosystems throughout North America. As a natural process, fire helps clear away dead and dying plant matter and increases the production of native species that occur in fire prone habitats. It also reduces the invasion of exotic species and the succession to woody species in pitcher plant bogs, pine savannas, coastal prairies...
Authors

[Book review] Natural History Investigations in South Carolina from Colonial Times to the Present, by A. E. Sanders and W. D. Anderson, Jr. [Book review] Natural History Investigations in South Carolina from Colonial Times to the Present, by A. E. Sanders and W. D. Anderson, Jr.

Review of: History Investigations in South Carolina from Colonial Times to the Present, by A. E. Sanders and W. D. Anderson, Jr. The University of South Carolina Press (July 1999). ISBN: 1570032785.
Authors
W. F. Smith-Vaniz

[Book review] Theoretical Ecology Illustrated : An illustrated guide to theoretical ecology, by Ted J. Case [Book review] Theoretical Ecology Illustrated : An illustrated guide to theoretical ecology, by Ted J. Case

Review of: An Illustrated Guide to Theoretical Ecology. Ted J. Case. Oxford University Press, New York, 2000. 460 pp., illus. $45.00 (ISBN 0-19-508512-4 paper).
Authors
D.L. DeAngelis
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