Wetland and Aquatic Research Center

Publications

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Filter Total Items: 2,469
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Year Published: 1999

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Proffitt, C. Edward; Devlin, Donna; Bros, Shannon May

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Year Published: 1999

Status and distribution of the angonoka tortoise (Geochelone yniphora) of western Madagascar

From 1993 to 1995, field surveys were conducted in western Madagascar to assess the current status of the angonoka tortoise (Geochelone yniphora) in the wild. Tortoise presence was documented at 10 of 11 localities surveyed. These localities represent at least five populations, all within a 30-km radius of Baly Bay, near the town of Soalala. The...

Smith, Lora L.; Reid, Don; Robert, Bourou; Joby, Mahatoly; Clement, Sibo

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Year Published: 1999

Exposure of great egret (Ardea albus) nestlings to mercury through diet in the Everglades ecosystem

We estimated exposure of great egret (Ardea albus) nestlings to mercury in food in the Florida Everglades, USA, by collecting regurgitated food samples during the 1993 to 1996 breeding seasons and during 1995 measured concentrations of mercury in individual prey items from those samples. Great egret nestlings had a diet composed predominantly of...

Frederick, Peter C; Spalding, Marilyn G.; Sepalveda, Maria S.; Williams, Gary E.; Nico, Leo G.; Robins, Robert H.

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Year Published: 1999

The relationship between species density and community biomass in grazed and ungrazed coastal meadows

Previous studies have indicated that the relationship between community biomass and species density can be represented by a multivariate model in which abiotic variables influence species density both through effects on biomass and through effects on the species pool. In this paper, we use data from grazed and ungrazed coastal meadows in Finland...

Grace, James B.; Jutila, H.

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Year Published: 1999

Salinity as a constraint on growth of oligohaline marsh macrophytes. I. Species variation in stress tolerance

The effects of increased salinity on plant growth were examined in a greenhouse experiment with four species common to oligohaline marshes of the northern Gulf of Mexico: Eleocharis palustris, Panicum hemitomon, Sagittaria lancifolia, and Scirpus americanus. Effects of final salinity reached (6 or 12 g/L), salinity influx rate (3 d or 3 wk), and...

Howard, R.J.; Mendelssohn, I.A.
Salinity as a constraint on growth of oligohaline marsh macrophytes. I. Species variation in stress tolerance; 1999; Article; Journal; American Journal of Botany; Howard, R. J.; Mendelssohn, I. A.

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Year Published: 1999

Salinity as a constraint on growth of oligohaline marsh macrophytes. II. Salt pulses and recovery potential

The ability of common oligohaline marsh macrophytes of the northern Gulf of Mexico coast to recover from pulses of increased salinity was investigated in a greenhouse experiment with Eleocharis palustris, Panicum hemitomon, Sagittaria lancifolia, and Scirpus americanus monocultures. Components of salinity pulses applied were final salinity reached...

Howard, R.J.; Mendelssohn, I.A.
Salinity as a constraint on growth of oligohaline marsh macrophytes. II. Salt pulses and recovery potential; 1999; Article; Journal; American Journal of Botany; Howard, R. J.; Mendelssohn, I. A.

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Year Published: 1999

The effects of global climate change on seagrasses

The increasing rate of global climate change seen in this century, and predicted to accelerate into the next, will significantly impact the Earth's oceans. In this review, we examine previously published seagrass research through a lens of global climate change in order to consider the potential effects on the world's seagrasses. A primary effect...

Short, Frederick T.; Neckles, Hilary A.

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Year Published: 1999

Herpetology in the federal government: a personal view

In late 1976, I received a phone call from an ichthyological colleague who asked if I would be willing to take a temporary position in the U.S. Fish and Wildlife Service's (FWS) Office of Endangered Species (OES) in Washington. They had a backlog of proposed and final rules that needed to be finished, and they thought that a 30-day stint by a...

Dodd, C. Kenneth