筛选
科学数据
统计数据
共检索到582条 ,权限内显示50条;
Harmonia axyridis invasion: UK distribution data 2004-2016
- 负责人：
- Dr. Helen Roy;;UK Centre For Ecology & Hydrology;;Environmental Information Data Centre
- 关键词：
- Coccinellidae harlequin ladybird citizen science invasive non-native species biological invasions Harmonia axyridis UK Britain Invasive species
- DOI：
- doi:10.5285/70ee24a5-d19c-4ca8-a1ce-ca4b51e54933
- 摘要：
- The dataset consists of location records of the Harlequin ladybird (Harmonia axyridis) in the UK. The records span from 2004 to 2016 with thr
County-Specific Net Migration by Five-Year Age Groups, Hispanic Origin, Race and Sex: 2000-2010;;Version 1
- 负责人：
- 关键词：
- DOI：
- doi:10.3886/icpsr34638.v1
- 摘要：
- , and Voss 2010; and 1990s: Voss, McNiven, Hammer, Johnson and Fuguitt, 2004). Further information about this project is available on the Net
Data from: Habitat monitoring and projections for threatened Canada lynx: linking the Landsat archive with carnivore occurrence and prey density
- 负责人：
- 关键词：
- Lynx canadensis;Landscape;Maine;Lepus americanus;snowshoe hare;Canada lynx;threatened;occurrence
- DOI：
- doi:10.5061/dryad.sm86q
- 摘要：
- ) of the threatened Canada lynx Lynx canadensis. Integration with a predictive occurrence model developed from landscape conditions c. 2004 allowed
Monitoring and species diversity of butterflies and day-active moths in non-crop agricultural habitats in Finland, 2001 - 2010
- 负责人：
- 关键词：
- butterflies day-active moths Lepidoptera species diversity abundance agricultural environment monitoring agri-environmental programme Finland
- DOI：
- doi:10.5063/aa/marjaana_toivonen.64.22
- 摘要：
- The data originates from national monitoring on the effects of the Finnish agri-environment support scheme (MYTVAS, see Kuussaari et al. 2004
Monitoring and species diversity of butterflies and day-active moths in non-crop agricultural habitats in Finland, 2001 - 2010
- 负责人：
- 关键词：
- butterflies day-active moths Lepidoptera species diversity abundance agricultural environment monitoring agri-environmental programme Finland
- DOI：
- doi:10.5063/aa/marjaana_toivonen.64.23
- 摘要：
- The data originates from national monitoring on the effects of the Finnish agri-environment support scheme (MYTVAS, see Kuussaari et al. 2004
County-Specific Net Migration by Five-Year Age Groups, Hispanic Origin, Race and Sex: 2000-2010;;Archival Version
- 负责人：
- 关键词：
- DOI：
- doi:10.3886/icpsr34638
- 摘要：
- , and Voss 2010; and 1990s: Voss, McNiven, Hammer, Johnson and Fuguitt, 2004). Further information about this project is available on the Net
The Capa Apple Quality Grading Multi-Spectral Image Database
- 负责人：
- DOI：
- doi:10.5281/zenodo.1313614
- 摘要：
- for \u2018Jonagold\u2019 apple sorting. Postharv. Biol. Technol., 30 (2003), pp. 221\u2013232.
Leemans and Destain, 2004 V. Leemans and M.F. Destain, A real-time
Data from: Beta diversity response to stress severity and heterogeneity in sensitive versus tolerant stream diatoms
- 负责人：
- DOI：
- doi:10.5061/dryad.st482f3
- 摘要：
- Aim: Severity and heterogeneity of stress are major constraints of beta diversity, but their relative influence is poorly understood. Here, we addressed this question by examining the patterns of beta diversity in stress-sensitive versus stress-tolerant stream diatoms and their response to local versus regional factors along gradients of stress severity and heterogeneity. Location: The Adirondack region of New York. Methods: Beta diversity was measured as multivariate dispersion of communities across high stress, low stress, and high + low stress (heterogeneous) environments, encompassing 200 stream samples. Null models were implemented to assess community similarity relative to randomly assembled communities and the importance of local assembly processes vs. the regional species pool. Results: The overall beta diversity was influenced by a combination of severity and heterogeneity of stress, while beta diversity of sensitive species increased with heterogeneity. Beta diversity of tolerant species did not vary with either severity or heterogeneity of stress. Heterogeneity decreased community similarity relative to the null expectation in all groups of species. Stress reduced the importance of local assembly mechanisms for the overall beta diversity and sensitive species beta diversity. In contrast, the importance of local assembly mechanisms increased with stress regarding beta diversity of tolerant species. Main Conclusions: Beta diversity responded to both severity and heterogeneity of stress, but turnover along these gradients was mostly driven by sensitive species. The overall beta diversity and beta diversity of sensitive species became more constrained by the depauperate regional species pool, as opposed to local assembly mechanisms. While heterogeneous stress contributed to beta diversity, severe stress suppressed beta diversity through elimination of sensitive species. Therefore, an increase in beta diversity in an environmentally-stressed region may serve as a forewarning for future loss of sensitive species, should the stress continue to intensify.
Data from: Accelerated epigenetic age and cognitive decline among urban-dwelling adults
- 负责人：
- DOI：
- doi:10.5061/dryad.6r80s8p
- 摘要：
- in the Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) study with complete DNA samples and whose baseline ages were >50.0y (2004-2009
Satellite Telemetry Dataset (Raw): Juvenile Bearded and Spotted Seals, 2004-2006, Kotzebue, Alaska
- 负责人：
- 关键词：
- DOI：
- doi:10.24431/rw1k118
- 摘要：
- as well as by climate change. During a cooperative effort between scientists and subsistence hunters in October 2004, 2005, and 2006, 13 female and 13 male juvenile (i.e., age
