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Full-Text Articles in Life Sciences
The Influence Of Hurricane Winds On Caribbean Dry Forest Structure And Nutrient Pools, Skip Van Bloem, Peter G. Murphy, Ariel E. Lugo, Rebecca Ostertag, Maria Riovera Costa, Ivelisse Ruiz Bernard, Sandra Molina Colon, Miguel Canals Mora
The Influence Of Hurricane Winds On Caribbean Dry Forest Structure And Nutrient Pools, Skip Van Bloem, Peter G. Murphy, Ariel E. Lugo, Rebecca Ostertag, Maria Riovera Costa, Ivelisse Ruiz Bernard, Sandra Molina Colon, Miguel Canals Mora
Publications
In 1998, we measured the effects of Hurricane Georges after it passed over long-term research sites in Puerto Rican dry forest. Our primary objectives were to quantify hurricane effects on forest structure, to compare effects in a large tract of forest versus a series of nearby forest fragments, to evaluate short-term response to hurricane disturbance in terms of mortality and sprouting, and to assess the ability of hurricanes to maintain forest structure. We sampled damage from 33 plots (1.3 ha) across a 3000-ha tract of forest as well as in 19 fragments. For stems with 2.5-cm minimum diameter, 1004 stems/ha …
Conservation, Protection And Utilization Of Louisiana's Coastal Wetland Forests, William Conner, Jim L. Chambers, John W. Day Jr, Stephen P. Faulkner, Emile S. Gardnier, Melinda S. Hughes, Richard F. Keim, Sammy L. King, Kenneth W. Mcleod, Craig A. Miller, John Andrew Nyman, Gary P. Shaffer
Conservation, Protection And Utilization Of Louisiana's Coastal Wetland Forests, William Conner, Jim L. Chambers, John W. Day Jr, Stephen P. Faulkner, Emile S. Gardnier, Melinda S. Hughes, Richard F. Keim, Sammy L. King, Kenneth W. Mcleod, Craig A. Miller, John Andrew Nyman, Gary P. Shaffer
Publications
No abstract provided.
A New Species Of Ceraclea (Trichopterma:Leptoceridae) Preying On Snails, John C. Morse, David R. Lenat
A New Species Of Ceraclea (Trichopterma:Leptoceridae) Preying On Snails, John C. Morse, David R. Lenat
Publications
Ceraclea joannae, new species, feeds on the freshwater snail Somatogyrus virginicus Walker (Hydrobiidae). Our study is the first report of prey other than sponges for a Ceraclea species and the first report of snail predation by Trichoptera larvae in North America. Ceraclea joannae larvae and adults resemble those of C. diluta (Hagen); however, the larva of the new species has a dark head, sickle-shaped mandibles, and a dark pronotum except for a pair of unique, conspicuous, oblique, white bands; the male differs in the slightly longer superior appendages, more nearly straight ventral margins of tergum X, slightly stouter inferior …
Efficiency In Thin-Film Liquid System For Hosta Micropropagation, Jeffrey Adelberg
Efficiency In Thin-Film Liquid System For Hosta Micropropagation, Jeffrey Adelberg
Publications
Three varieties of Hosta (‘Striptease’, ‘Minuteman’ and ‘Stiletto’) at four densities (40, 80, 120 and 200 explants per litre) were micropropagated on semi-solid agar and a thin-film liquid system with intermittent wetting of plant tissue. The mechanics of wetting by a small wave front required a larger rectangular vessel (11 × 27=297 cm 2) compared to the common cylindrical baby food jar (18 cm 2). Plants multiplied more rapidly in the agitated thin-film system than on agar. Lower plant densities increased rates of multiplication in liquid, but had little or no effect on multiplication rate on agar. Increasing …