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| Antibiotic Used on Food Crops Affects Bumblebee Behavior, Lab Study Finds 科技资讯 2022 收藏  |  浏览/下载:7/0  |  提交时间:2022/02/22 |
| Canada in a Changing Climate:National Issues Report 科技报告 , 2021 作者: [unavailable] Adobe PDF(29033Kb)  |  收藏  |  浏览/下载:55/6  |  提交时间:2021/11/24 |
| The context dependency of pollinator interference: How environmental conditions and co-foraging species impact floral visitation 期刊论文 Ecology Letters, 2021, 卷号: 24, 期号: 7 作者: Cervantes-Loreto A.; Ayers C.A.; Dobbs E.K.; Brosi B.J.; Stouffer D.B. 收藏  |  浏览/下载:20/0  |  提交时间:2021/09/01 density dependence foraging chamber interaction modification pollinator competition pollinator functional responses visitation rates |
| Mineral Resource Governance in the 21st Century 科技报告 , 2020 作者: United Nations Environment Programme 浏览  |  Adobe PDF(27245Kb)  |  收藏  |  浏览/下载:131/21  |  提交时间:2020/03/25 |
| Global Linkages A Graphic Look at the Changing Arctic 科技报告 , 2019 作者: [unavailable] Adobe PDF(16739Kb)  |  收藏  |  浏览/下载:2/0  |  提交时间:2021/11/24 |
| National Park Service socioeconomic monitoring pilot survey: Visitor spending analysis 科技报告 报告编号: 70204070, 页数: 116, 2019 作者: Cullinane Thomas, Catherine ccullinanethomas@usgs.gov; Cornachione, Egan; Koontz, Lynne koontzl@usgs.gov; Keyes, Christopher R. Adobe PDF(2036Kb)  |  收藏  |  浏览/下载:53/16  |  提交时间:2019/11/06 |
| Assessment of bird exposure to lead at Tyndall and Beale Air Force Bases, 2016–17 科技报告 报告编号: 70201141, , 2019 作者: Bargar, Timothy A. Adobe PDF(14618Kb)  |  收藏  |  浏览/下载:6/4  |  提交时间:2019/11/06 |
| A review of the population and conservation status of British mammals 科技报告 , 2018 Adobe PDF(16823Kb)  |  收藏  |  浏览/下载:24/3  |  提交时间:2019/11/06 |
| Elk research efforts 科技报告 报告编号: 70202232, , 2018 作者: Clark, Joseph D. jclark1@usgs.gov Adobe PDF(2172Kb)  |  收藏  |  浏览/下载:8/5  |  提交时间:2019/11/06 |
| Bottom trawl assessment of Lake Ontario prey fishes 科技报告 报告编号: 70196215, , 2018 作者: Weidel, Brian C. bweidel@usgs.gov; Connerton, Michael J.; Holden, Jeremy Adobe PDF(6425Kb)  |  收藏  |  浏览/下载:54/27  |  提交时间:2019/11/06 |