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共检索到555条 ,权限内显示50条;
Data from: A century of conservation: the ongoing recovery of Svalbard reindeer
- 负责人：
- DOI：
- doi:10.5061/dryad.7351kt1
- 摘要：
- , n = 1,349 groups) to estimate the Svalbard reindeer distribution and abundance across its entire range, which we compared with historical data from
Data from: Estimating population density and connectivity of American mink using spatial capture-recapture
- 负责人：
- Fuller, Angela K.
- 关键词：
- abundance American mink animal movement connectivity density 36 non-invasive genetic scat detection dog spatial capture-recapture
- DOI：
- doi:10.5061/dryad.s7ph4
- 摘要：
- Estimating the abundance or density of populations is fundamental to the conservation and management of species, and as landscapes become mor
Data from: Rarefaction and extrapolation with Hill numbers: a framework for sampling and estimation in species diversity studies
- 负责人：
- DOI：
- doi:10.5061/dryad.6n9d5
- 摘要：
- ed our methods on simulated data generated from species abundance models and on data from large species inventories. We also illustrate the formulas and estimat
Data from: Effects of distance on detectability of Arctic waterfowl using double-observer sampling during helicopter surveys
- 负责人：
- Alisauskas, Ray T
- DOI：
- doi:10.5061/dryad.mp7h92r
- 摘要：
- rk–recapture (MR) estimation of detection probability, urn:x-wiley:20457758:media:ece34824:ece34824-math-0001, and group abundance, urn:x-wiley:20457758:media
Data from: Meta?analysis supports further refinement of eDNA for monitoring aquatic species?specific abundance in nature
- 负责人：
- DOI：
- doi:10.5061/dryad.pm66g75
- 摘要：
- on in abundance, respectively. We found some evidence of potential publication bias that may have impacted the estimation of the correlation in natural environments
Monitoring of the relative abundance of tundra bird and mammal species encountered daily on Bylot Island, Nunavut
- 负责人：
- Canadian Polar Data Network (CPDN)
- 关键词：
- Abundance Birds Bylot Island Mammals Nunavut Tundra Circumpolar Biodiversity Monitoring Program, Conservation of Arctic Flora and Fauna - Terrestrial International Polar Year-Arctic Wildlife Observatories Linking Vulnerable EcoSystems
- DOI：
- doi:10.5443/1627
- 摘要：
- to accurately estimate the absolute abundance of all vertebrates in the tundra communities we study, largely because of lack of time and also the low abundances
Data from: Environmental DNA (eDNA) detects the invasive rusty crayfish (Orconectes rusticus) at low abundances
- 负责人：
- DOI：
- doi:10.5061/dryad.3hp15
- 摘要：
- of this species and lake water clarity. However there was poor correspondence between eDNA copy number and O. rusticus relative abundance estimated by trap catches
Data from: Estimating belowground plant abundance with DNA metabarcoding
- 负责人：
- DOI：
- doi:10.5061/dryad.dm4t39t
- 摘要：
- (linear models fits and correction indices) to improve root biomass estimates. We validated both methods with multispecies mixtures that simulate field-collected
Data from: Using dynamic N-mixture models to test cavity limitation on northern flying squirrel demographic parameters using experimental nest
- 负责人：
- 关键词：
- Abundance apparent survival BACI design habitat selection Dail-Madsen open N-mixture model recruitment snags tree cavities manipulative experiment
- DOI：
- doi:10.5061/dryad.p2r8r
- 摘要：
- squirrel population dynamics in deciduous stands in northwestern Québec with the dynamic N-mixture model. We compared abundance estimates from this recent
Data from: Paternity assignment and demographic closure in the New Zealand southern right whale
- 负责人：
- Carroll, Emma L.
- DOI：
- doi:10.5061/dryad.n630t
- 摘要：
- on of the male population sampled and (2) the gametic mark-recapture (GMR) estimate of male abundance will be equivalent to the census male estimate for the NZ
