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Found 4298 dataset(s) matching "ecological sites".
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This package contains seven tables of avian and habitat survey data from four parks (Cape Krusenstern National Monument, Gates of the Arctic National Park and Preserve, Kobuk Valley National Park,...
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This package contains seven tables of avian and habitat survey data from Bering Land Bridge National Preserve; part of the Arctic National Park Network (ARCN), Alaska. Tables include: 1)...
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This data release links fish survey data from a suite of programs in the Chesapeake Bay watershed to the NHDPlus High Resolution Region 02 networks, hereafter referred to as NHDPlusHR. The data...
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The data described here result from coral bleaching surveys across the Hawaiian Archipelago from October 02 to November 18, 2015. The data provide survey-level information on percent live coral...
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Monitoring of vitamin B1 (thiamine) in the eggs of lake trout (Salvelinus namaycush) collected from lakes Huron and Michigan has been conducted by the U.S. Geological Survey since the mid-1990’s. ...
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Stream acidification is an increasingly serious threat to the survival of brook trout. Streams in GRSM naturally become more acidic at higher elevations. However, research shows that areas in the...
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A long-term, multiseason, fish egg sampling program is conducted annually on the Detroit, Saint Clair, and Saint Marys rivers to identify where productive fish spawning habitat currently exists...
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This dataset contains CTD files collected from both the R/V Point Sur CTD rosette casts and the ROV Mohawk during Expedition PS-23-10. The ship conducted 15 CTD casts and sensors on the ROV...
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In this study, the U.S. Geological Survey investigated the use of insects as bioindicators of climate change in sagebrush steppe shrublands and grasslands in the Upper Columbia Basin. The research...
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The objective of this investigation was to respond to a request for regional assistance for a comprehensive delineation of wetland habitats subject to jurisdiction under Section 404 of the Clean...
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This data set reports carbon and oxygen stable isotope ratios of atmospheric carbon dioxide (CO2) collected at several forest and pasture sites and in the free troposphere over Amazonia. There are...
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This dataset contains bulk tissue carbon (delta-13C), nitrogen (delta-15N), and sulfur (delta-34S) stable isotope values from sediment samples, marsh primary producers, marsh invertebrates, and...
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Amphibian survey tabular data for San Juan Island National Historical Park 2002. Fourteen surveys were conducted at American Camp and 15 surveys at English Camp. We confirmed the presence of two...
