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Data from: International collaboration and spatial dynamics of US patenting in Central and Eastern Europe 1981-2010
- 负责人：
- DOI：
- doi:10.5061/dryad.5c820
- 摘要：
- policy. In this paper we describe the spatial dynamics of inventor activity in the Czech Republic, Hungary, Poland and Slovakia between 1981 and 2010
Data from: Current and projected cumulative impacts of fire, drought and insects on timber volumes across Canada
- 负责人：
- DOI：
- doi:10.5061/dryad.2qh132f
- 摘要：
- ted by at least one of the four natural disturbances considered in our analysis, a six-fold increase relative to the baseline period (1981-2010). Tree species par
Hydro-CH2018 reservoirs
- 负责人：
- Brunner, Manuela Irene
- DOI：
- doi:10.16904/envidat.69
- 摘要：
- catchments in Switzerland. Water supply for current (1981-2010) and future (2070-2099) climate conditions was simulated using the hydrological model PREVAH
Data from: Evaluating range-expansion models for calculating nonnative species’ expansion rate
- 负责人：
- DOI：
- doi:10.5061/dryad.ns624
- 摘要：
- 1. Species range shifts associated with environmental change or biological invasions are increasingly important study areas. However, quantifying range expansion rates may be heavily influenced by methodology and/or sampling bias. 2. We compared expansion rate estimates of Roesel’s bush-cricket (Metrioptera roeselii, Hagenbach 1822), a non-native species currently expanding its range in south-central Sweden, from range statistic models based on distance measures (mean, median, 95th gamma quantile, marginal mean, maximum and conditional maximum) and an area-based method (grid occupancy). We used sampling simulations to determine the sensitivity of the different methods to incomplete sampling across the species’ range. 3. For periods when we had comprehensive survey data, range expansion estimates clustered into two groups: (i) those calculated from range margin statistics (gamma, marginal mean, maximum and conditional maximum: ~3 km/yr), and (ii) those calculated from the central tendency (mean and median) and the area-based method of grid occupancy (~1.5 km/yr). 4. Range statistic measures differed greatly in their sensitivity to sampling effort; the proportion of sampling required to achieve an estimate within 10% of the true value ranged from 0.17-0.9. Grid occupancy and median were most sensitive to sampling effort, and the maximum and gamma quantile the least. 5. If periods with incomplete sampling were included in the range expansion calculations, this generally lowered the estimates (range 16-72%), with exception of the gamma quantile that was slightly higher (6%). 6. Care should be taken when interpreting rate expansion estimates from data sampled from only a fraction of the full distribution. Methods based on the central tendency will give rates approximately half that of methods based on the range margin. The gamma quantile method appears to be the most robust to incomplete sampling bias and should be considered as the method of choice when sampling the entire distribution is not possible.
National Child Development Study: Understanding Individual Behaviour, 2010;;National Child Development Study, 1958-;;Investigating the Gene
- 负责人：
- 关键词：
- DOI：
- doi:10.5255/ukda-sn-6752-1
- 摘要：
- <i>National Child Development Study: Understanding Individual Behaviour, 2010</i> is a pilot study completed by an inter-disciplinary
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.2iugrx
- 摘要：
- - Species Records for John Muir Trust Properties Nevis, Sandwood, Quinag and Schiehallion 2010.. 255 records from Ontario Breeding Bird Atlas 1981-1985. 54
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.wrbnbu
- 摘要：
- Nevis, Sandwood, Quinag and Schiehallion 2010.. 50 records from NYSM Birds. 68 records from RSPB - Bean geese on the Slamannan Plateau, Central Scotland
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.xbuvoc
- 摘要：
- The First Atlas of Wintering Birds in Britain and Ireland: 1981/82-1983/84.. 2 records from Caire-Chabrand Collection. 9 records from Aves MZS. 4 records
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.pmcorl
- 摘要：
- for OZCAM. 1 records from The First Atlas of Wintering Birds in Britain and Ireland: 1981/82-1983/84.. 27 records from Ontario Nest Records. 7 records from
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.hrthxf
- 摘要：
- John Muir Trust - Species Records for John Muir Trust Properties 2007-2009. 11 records from Ontario Breeding Bird Atlas 1981-1985. 7 records from Bird
