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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Julia S Lankton National Wildlife Health Center U.S. Geological Survey Gregory A Wetherbee Robert J Dusek More... Categories Data (6) Data Release - Revised (1) Tag Types Place (6) Theme (6) USGS Scientific Topic Keyword (6) Harvest Set (6) Tag Schemes None (3) National Agricultural Library Thesaurus (3) USGS Thesaurus (3) ICPSR (1) Getty Thesaurus of Geographic Names (3) ISO 19115 Topic Category (2) Common geographic areas (1) View Results as: JSON ATOM CSV

Histopathological assessment of the digestive gland of a freshwater snail (Lymnaea stagnalis) exposed to uranium This dataset consists of measurements of the digestive gland in the freshwater snail Lymnaea stagnalis orally exposed to uranium. The objective of the study was to assess the morphological effects of uranium on the snail digestive gland by light microscopy. Laboratory-cultured L stagnalis were exposed to either synthetic or natural solid phases of uranium and a subset (6 controls and 6 exposed) were euthanized and fixed in 10% neutral buffered formalin for histopathological assessment. Slides were processed and stained with hematoxalin and eosin as per standard procedure (Luna 1968). The size of each sample, the length and width of digestive gland tubules (5 random glands per sample) and height of digestive cells... Categories: Data; Tags: Environmental Health, Lymnaea stagnalis, Madison, Wisconsin, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... Wildlife Disease, digestive gland, uranium, Fewer tags National Atmospheric Deposition Program Pollen Study Data for 2021 Pollen Season Pollen was measured in ambient air by several methods and in wet atmospheric deposition samples at three monitoring sites in the National Atmospheric Deposition Program (NADP) National Trends Network. A method for counting pollen on filters was developed and provided pollen counts for NADP atmospheric wet-deposition samples and high-volume ambient air samplers (HVAS) for comparison with co-located traditional microscopy and PollenSense sensor counting methods during the 2021 pollen season. Air and precipitation samples were collected by the NADP and analyzed by the Wisconsin State Laboratory of Hygiene, in Madison, Wisconsin and Aerobiology Research Laboratories (Canada). Daily data were obtained from online summaries... Categories: Data; Tags: Botany, Climatology, Draper, Utah, Duke Forest, North Carolina, Ecology, All tags... Environmental Health, Logan, Utah, Madison, Wisconsin, USGS Science Data Catalog (SDC), air pollution, pollen, precipitation, Fewer tags Dataset: Surveillance for Avian Influenza Virus in Iceland, 2010 – 2018 From 2010-2018 we investigated the occurrence of avian influenza virus in wild birds in Iceland. A total of 6635 swabs samples were collected from wild birds or fecal material directly associated with wild birds. We screened all samples by a real time - polymerase chain reaction (RT-PCR) test with 381 testing positive. Further testing of all RT-PCR positive samples and all negative samples collected in 2012 by virus isolation yielded 120 positives, with 92 of those testing positive by RT-PCR for avian influenza virus. Categories: Data; Tags: Akureyri, Alftanes, Breidafjordur, Brimnes, East Atlantic Flyway, All tags... Egilsstadir, Eyjafjordur, Faxafloi, Fljotsdalur, Garður, Grimsey, Grindavik, Grundarfjordur, Grundarhverfi, Hafnarfjordur, Hofn, Husavik, Hvalnes, Hveragerdi, Iceland, Kollafjordur, Lon, Madison, Wisconsin, Myrar, Njardvik, Reydarfjordur, Reykjanes, Rif, Sandgerdi, Seljalandsfoss, Seltjarnarnes, Skagafjordur, Snaefellsness, Sudursveit, Thveit, USGS Science Data Catalog (SDC), USGS-EMA-LOW-SB SMC: Migratory birds, Vogar, Wildlife Disease, avian influenza, biota, viruses, Fewer tags Histopathology of zebra finches (Taeniopygia guttata) orally exposed to clothianidin (ver. 2.0, October 2019) This dataset reports select histopathological changes in liver, kidney, gonad, spleen, brain, heart, skeletal muscle, lung, or adrenal gland of zebra finches exposed to 15mg/kg, 18mg/kg, 30mg/kg, 60mg/kg, 75mg/kg, 125mg/kg, or 250mg/kg clothianidin (CTD) (with controls) by gavage, in water, or on millet seed either as a single dose or for 7 days. The goal of the project is to develop a subacute neonicotinoid toxicity model using zebra finches as a model passerine. We have completed two acute toxicity trials using CTD insecticide. Based on these studies, we estimate the no observable effect level (NOAEL) and the lowest observable effect level (LOAEL) for CTD in zebra finches to be 15 and 30 mg/kg body weight, respectively,... Categories: Data, Data Release - Revised; Tags: Environmental Health, Madison, Wisconsin, USGS Science Data Catalog (SDC), Wildlife Biology, clothianidin, All tags... neonicotinoids, zebra finch, Fewer tags Virally-vectored vaccine candidates against white-nose syndrome induce anti-fungal immune response in little brown bats (Myotis lucifugus) White-nose syndrome (WNS) caused by the fungus, Pseudogymnoascus destructans (Pd) has killed millions of North American insect-eating bats. Currently, methods to prevent the disease are limited. We conducted two trials to assess potential WNS vaccine candidates in wild-caught Myotis lucifugus. In a pilot study, we immunized bats with one of four vaccine treatments or PBS as a control and challenged them with Pd upon transfer into hibernation chambers. Bats in one vaccine-treated group, that received raccoon poxviruses (RCN) expressing Pd calnexin (CAL) and serine protease (SP), developed WNS at a lower rate (1/10) than other treatments combined (14/23), although samples sizes were small. The results of a second... Categories: Data; Tags: Madison, Wisconsin, USGS National Wildlife Health Center, USGS Science Data Catalog (SDC), Wildlife Disease, bats, All tags... biota, vaccination, white-nose syndrome, Fewer tags Histopathology of American kestrels (Falco sparverius) sequentially exposed to first and second generation anticoagulant rodenticides This dataset describes histopathological changes in liver, kidney, heart, skeletal muscle and intestine of captive American kestrels sequentially exposed to first and second generation anticoagulant rodenticides (FGAR and SGAR). The goal of the study was to determine the toxicity of sequential exposure to anticoagulant rodenticides (ARs) by evaluating FGAR-FGAR exposure (7 day chlorophacinone exposure, 7 day recovery, than re-exposure) and SGAR-FGAR exposure (7 day brodifacoum, 7 day recovery, than 7 day exposure to chlorophacinone). Birds were necropsied and examined grossly for hemorrhages or anemia, and liver, kidney, heart, skeletal muscle, and intestine was collected for histopathological evaluation. Tissues... Categories: Data; Tags: Environmental Health, Falco sparverius, Madison, Wisconsin, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... brodifacoum, chlorophacinone, rodenticides, Fewer tags