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Despite its successes, the U.S. Endangered Species Act (ESA) has proven challenging to implement due to funding limitations, workload backlog, and other problems. As threats to species survival intensify and as more species come under threat, the need for the ESA and similar conservation laws and policies in other countries to function efficiently has grown. Attempts by the U.S. Fish and Wildlife Service (USFWS) to streamline ESA decisions include multispecies recovery plans and habitat conservation plans. We address species status assessment (SSA), a USFWS process to inform ESA decisions from listing to recovery, within the context of multispecies and ecosystem planning. Although existing SSAs have a single-species...
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The original distribution of the study species Trillium texanum is seep spring baygalls in east-central Texas and extreme northwestern Louisiana. Experiments to determine the effects of shading on T. texanum were conducted using short-term shade cloth treatments (full sunlight vs. 30% shading for 2-3 weeks), and a dryness treatment (moist vs. less moist). Mean height and cover responses of individuals were determined in conservation gardens located in Lafayette, Louisiana.
Categories: Data;
Tags: Botany,
Ecology,
Louisiana,
Texas,
USGS Science Data Catalog (SDC), All tags...
biota,
climate change,
climate drying,
disturbance fugitive,
east-central Texas,
effects of climate change,
endangered species,
environment,
floodplain,
habitat alteration and disturbance,
northwestern Louisiana,
rare, endangered, and threatened species,
ruderal species,
seed bank,
seep spring drying,
shade experiment, Fewer tags
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Abstract (from U.S. Geological Survey): The unglaciated southeastern United States is a biodiversity hotspot, with a disproportionate amount of this biodiversity concentrated in grasslands. Like most hotspots, the Southeast is also threatened by human activities, with the total reduction of southeastern grasslands estimated as 90 percent (upwards to 100 percent for some types) and with many threats escalating today. This report summarizes the results of a multistakeholder workshop organized by the Southeastern Grasslands Initiative and the U.S. Geological Survey, held in January 2020 to provide a scientific needs assessment to help inform the Species Status Assessment (SSA) process under the U.S. Endangered Species...
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The original distribution of the study species Physostegia correllii included freshwater floodplains of large rivers in the southcentral U.S. (Colorado, Rio Grande, Mississippi). Experiments to determine the effects of shading on P. correllii were conducted using short-term shade cloth treatments (full sunlight vs. 30% shading for 2-3 weeks). Mean height and cover responses of individuals were determined in conservation gardens located in Lafayette, Louisiana. Physostegia correllii plants were grown in shaded environments for 2.5 weeks.
Categories: Data;
Tags: Botany,
Colorado River,
Ecology,
Louisiana,
Lower Rio Grande, All tags...
Mississippi River,
Rio Grande,
Texas,
USGS Science Data Catalog (SDC),
biota,
climate change,
climate drying,
disturbance fugitive,
effects of climate change,
endangered species,
environment,
floodplain,
habitat alteration and disturbance,
rare, endangered, and threatened,
ruderal species,
seed bank,
seep spring drying,
shade experiment,
southcentral U.S., Fewer tags
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