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共检索到17条 ,权限内显示50条;
Data from: Detrital subsidy from subtidal kelp beds is altered by the invasive green alga Codium fragile ssp. fragile
- 负责人：
- DOI：
- doi:10.5061/dryad.4b2t6
- 摘要：
- , a secondary metabolite that deters grazers), and isotopic composition (δ13C and δ15N) between C. fragile and the native kelp Saccharina latissima at 4 wk intervals over 16
Data from: Are migratory behaviours of bats socially transmitted?
- 负责人：
- DOI：
- doi:10.5061/dryad.4d3n1
- 摘要：
- d microsatellite genotypes and stable isotope values of δ13C, δ15N and δ2H to analyse the relatedness and geographical origins of migrating hoary bats
Data from: Stable isotopes reveal links between human food inputs and urban ant diets
- 负责人：
- DOI：
- doi:10.5061/dryad.668n0
- 摘要：
- l—ant species living in Manhattan's most urbanized habitats had δ13C signatures associated with processed human foods. In particular, pavement ants
Data from: Drivers of individual niche variation in coexisting species
- 负责人：
- Costa-Pereira, Raul
- 关键词：
- stable isotopes species coexistence intraspecific variation Leptodactylus competition ecological opportunity diet Thin-toed frogs
- DOI：
- doi:10.5061/dryad.mq2h237
- 摘要：
- and stable isotopes (δ13C and δ15N) from frog species and their prey to quantify individual niche specialization. Then we combined data on local community
Data from: How do functional traits syndromes covary with growth and reproductive performance in a water-stressed population of Fagus sylvatica?
- 负责人：
- DOI：
- doi:10.5061/dryad.v7v8c
- 摘要：
- estimated by carbon isotopic discrimination (d13C), twig Huber-value (HV: the stem cross-section divided by the leaf area distal to the stem), wood density
Data from: Rewriting the history of an extinction - was a population of Steller's sea cows (Hydrodamalis gigas) at St. Lawrence Island also driven to extinction?
- 负责人：
- DOI：
- doi:10.5061/dryad.vf86p
- 摘要：
- using analysis of mitochondrial DNA. The nitrogen-15 (δ15N)/carbon-13 (δ13C) values for bone samples from St Lawrence Island were signific
Geochemistry of sediment core Kinneret_AA3, supplement to: Quintana Krupinski, Nadine B; Marlon, Jennifer R; Nishri, Ami; Street, Joseph H; Paytan, Adina (2013): Climatic and human controls on the late Holocene fire history of northern Israel. Quaternary Research, 80(03), 396-405
- 负责人：
- 关键词：
- DEPTH, sediment\/rock AGE Calcium carbonate δ13C, carbonate δ18O, carbonate Carbon, organic, total δ13C, organic carbon Nitrogen, total δ15N Carbon\/Nitrogen ratio
- DOI：
- doi:10.1594/pangaea.885848
- 摘要：
- Long-term fire histories provide insight into the effects of climate, ecology and humans on fire activity; they can be generated using accumulation rates of charcoal and soot black carbon in lacustrine sediments. This study uses both charcoal and black carbon, and other paleoclimate indicators from Lake Kinneret (Sea of Galilee), Israel, to reconstruct late Holocene variations in biomass burning and aridity. We compare the fire history data with a regional biomass-burning reconstruction from 18 different charcoal records and with pollen, climate, and population data to decipher the relative impacts of regional climate, vegetation changes, and human activity on fire. We show a long-term decline in fire activity over the past 3070 years, from high biomass burning ~3070-1750 cal yr BP to significantly lower levels after ~1750 cal yr BP. Human modification of the landscape (e.g., forest clearing, agriculture, settlement expansion and early industry) in periods of low to moderate precipitation appears to have been the greatest cause of high biomass burning during the late Holocene in southern Levant, while wetter climate apparently reduced fire activity during periods of both low and high human activity.
Data from: Evidence for seasonal variation in δ13C and δ18O profiles of Baculites and implications for growth rate
- 负责人：
- Ellis, Nicholas M.
- DOI：
- doi:10.5061/dryad.27tn2gs
- 摘要：
- by shell microstructure, affected the preservation of isotopic signals, resulting in the loss of seasonal variation in less well‐preserved specimens, and the δ13C signal
Data from: The strength of migratory connectivity for birds en route to breeding through the Gulf of Mexico
- 负责人：
- Cohen, Emily
- DOI：
- doi:10.5061/dryad.4s20483
- 摘要：
- , as measured by stable carbon isotope values in claws (δ13C). To make quantitative comparisons of migratory connectivity possible, we developed and use
Data from: The diverse dietary profiles of MIS 3 cave bears from the Romanian Carpathians: insights from stable isotope (δ13C and δ15N) analysis
- 负责人：
- Robu, Marius
- DOI：
- doi:10.5061/dryad.m2fr6
- 摘要：
- Late Pleistocene European cave bears (Ursus spelaeus) have been considered to be largely vegetarian, although stable isotope data (δ13C and δ15N
