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Found 532 dataset(s) matching "abundance estimation".
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The Institute for Bird Populations (IBP) collaborated with personnel at Mount Rainier National Park to initiate a Park-wide inventory of landbirds. The goals of the inventory were to estimate...
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Inventory of landbirds in San Juan Island National Historical Park tabular data, 2002. The Institute for Bird Populations (IBP) collaborated with personnel at San Juan Island National Historical...
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Inventory of landbirds in North Cascades National Park Service Complex tabular data, 2001-2002. The Institute for Bird Populations (IBP) and Western Washington University collaborated with...
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In 2004 The Institute for Bird Populations (IBP) collaborated with personnel at Lewis and Clark National Historical Park to initiate a Park-wide inventory of landbirds. The goals of the inventory...
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We conducted this study in Upper Mississippi River Pools 4 and 8 to document the occurrence and cover of Phalaris arundinacea and other forest floor plants in UMR floodplain forests and relate...
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In this study, organic petrology and Osmium isotope (187Os/188Os) stratigraphy, major and trace element, and programmed pyrolysis analysis were performed on five outcrop samples from western New...
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Hydroacoustics is a common sampling tool in freshwater and marine ecosystems, yet the full potential of this tool remains restricted, owing to an incomplete understanding of the influence of many...
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Distance-power relationship data we used to create and evaluate a protocol to estimate population density, which can be used to compute abundance of terrestrial sound-producing animals from single...
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These data are detections of burros in the Sinbad Herd Management Area in central Utah made during aerial thermal infrared-based distance sampling surveys in December 2015 and May 2016. Burros...
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These data represent a set of capture histories of rainbow trout (Oncorhynchus mykiss or RBT) captured in the Colorado River (CR) and(or) detected on the multiplexer array in the Little Colorado...
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These data are detections of bison in Grand Canyon National Park made during helicopter surveys between 2019 and 2021, and an aerial infrared imagery survey done in February 2020.
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Background Because moisture and temperature influence the growth of fungi, characterizing weather conditions favorable for fungi may be used to predict the abundance and richness of...
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The Circum-Arctic permafrost and ground ice map is available via ftp in ESRI Shapefile format and Equal-Area Scalable Earth Grid (EASE-Grid) format. See the Format section for an explanation of...
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Largely supported by the Interagency Ecological Program (IEP), California Department of Water Resources (DWR) has operated a fish monitoring program in the Yolo Bypass, a seasonal floodplain and...
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We estimated the effect of microhabitat and microclimatic factors on occupancy, abundance and reproduction of four species of Eleutherodactylus frogs (E. wightmanae, E. brittoni, E. antillensis,...
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Planktic foraminiferal species distributions in the modern ocean track environmental features like latitudinal temperature gradients. Species shift their distributions as the marine environment...
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Micro-zooplankton populations in the upper 100 m were sampled from 5 marine environments in the northeast Pacific Ocean extending from slope waters off San Diego to an oceanic site near Isla...
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We estimated the effect of microhabitat and microclimatic factors on occupancy, abundance and reproduction of four species of Eleutherodactylus frogs (E. wightmanae, E. brittoni, E. antillensis,...
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We estimated the effect of microhabitat and microclimatic factors on occupancy, abundance and reproduction of four species of Eleutherodactylus frogs (E. wightmanae, E. brittoni, E. antillensis,...
