筛选
科学数据
统计数据
共检索到268条 ,权限内显示50条;
USA National Phenology Network (USA-NPN) Plant and Animal Phenology Data for the United States
- 负责人:
- 关键词:
- plants animals ground stations migratory routes\/rates species life history biosphere biota phenology
- DOI:
- doi:10.5063/f1rf5rz9
- 摘要:
- to collect and share phenology data. More information on the USA-NPN can be found at http://www.usanpn.org/about. As of January 1, 2013, the dataset conta
Winter Rainfall Crops
- 负责人:
- South African Environmental Observation Network
- 关键词:
- biomass potential degraded land erosion barren rock Agriculture Commercial cropping systems Socio-economic Economic activity Land Transformation
- DOI:
- doi:10.15493/bea.data.10000088
- 摘要:
- e from Spot 5 satellite imagery of 2011 and 2012, as well as aerial photography of 2010. The low-level aerial survey of 2013 was conducted to observe crops
2013 AAFC Crop Type Map of Canada
- 负责人:
- DOI:
- doi:10.5203/lwbin.aafc.2013.1
- 摘要:
- the process of generating annual crop type digital maps.Focusing on the Prairie Provinces in 2009 and 2010, a Decision Tree (DT) based methodology was applied
Data from: Incidence of influenza A(H3N2) virus infections in Hong Kong in a longitudinal sero-epidemiological study, 2009-2015
- 负责人:
- DOI:
- doi:10.5061/dryad.7c93n5s
- 摘要:
- 2010; (2) Mar-Jun 2012; (3) Jul-Oct 2013; and (4) Jun-Jul 2014. Between 514 516 and 614 619 relevant pairs of sera were available for each epidemic
Data from: Experimental defaunation of terrestrial mammalian herbivores alters tropical rain forest understory diversity
- 负责人:
- DOI:
- doi:10.5061/dryad.28v87
- 摘要:
- –100 cm tall were marked and identified within each of these plots and re-censused three times to record survival and recruitment. In the periods 2010
Changes in anthropogenic influences on streams and rivers in the conterminous U.S. over the last 40 years, derived for 16 data themes
- 负责人:
- 关键词:
- DOI:
- doi:10.5066/f7xw4j1j
- 摘要:
- ), (2) agricultural production and livestock (1969-2012), (3) land in the Conservation Reserve Program (1986-2014), (4) dams and reservoirs (1972-2013), (5) housing unit density
Eurobarometer 73.1, januar-februar 2010;;Eurobarometer 73.1, January-February 2010
- 负责人:
- 关键词:
- Videnskab og teknologi Science and technology Videnskab og teknologi: Bioteknologi Science and technology: Biotechnology Beslutningsgrundlag Biobr?ndstof EU-st?tte Holdning til genetisk modificerede f?devarer Holdning til videnskab Informationskilde
- DOI:
- doi:10.5279/dk-sa-dda-25191
- 摘要:
- P? foranledning af EU-kommissionen gennemf?rtes "Eurobarometer 73.1, januar-februar 2010". I unders?gelsen sp?rges der ti
Horizontal and Vertical Movements of Atlantic cod and European plaice in the North Sea and English Channel from 1996 to 2010 Derived from
- 负责人:
- Righton, David;;Griffiths, Christopher;;Blackwell, Paul;;Patterson, Toby;;Wright, Serena;;Hunter, Ewan;;Metcalfe, Julian;;Bendall, Victoria
- 关键词:
- Fish Fish behaviour
- DOI:
- doi:10.14466/cefasdatahub.54
- 摘要:
- (Pleuronectes platessa) in the North Sea and English Channel. Tags were deployed throughout the time period 1996 \u2013 2010. The dataset includes 107 individual fish ea
Data from: Changes in data sharing and data reuse practices and perceptions among scientists worldwide
- 负责人:
- DOI:
- doi:10.5061/dryad.1ph92
- 摘要:
- arch scientists as they compare to the 2009/2010 baseline study, and to examine differences in practices and perceptions across age groups, geographic regions
Data from: Genetic wealth, population health: major histocompatibility complex variation in captive and wild ring-tailed lemurs (Lemur catta)
- 负责人:
- Grogan, Kathleen E.
- 关键词:
- MHC-DRB genetic diversity inbreeding strepsirrhine primate immunogenetics conservation genetics
- DOI:
- doi:10.5061/dryad.bn7h0
- 摘要:
- vely “open,” wild population (n = 180) derived from Bezà Mahafaly Special Reserve, Madagascar (2003–2013) and a “closed,” captive population (n = 121