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共检索到115条 ,权限内显示50条;
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GBIF Occurrence Download
- 负责人:
- DOI:
- doi:10.15468/dl.vtlvjg
- 摘要:
- Observation Year: 2010-2017 TaxonKey: Myocastor Kerr, 1792. The dataset includes 3300 records from 14 constituent datasets: 1 records from NBIS Records
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Eco-energetic consequences of evolutionary shifts in body size
- 负责人:
- DOI:
- doi:10.5061/dryad.bc1gb
- 摘要:
- Size imposes physiological and ecological constraints upon all organisms. Theory abounds on how energy flux covaries with body size, yet causal links are often elusive. As a more direct way to assess the role of size, we used artificial selection to evolve the phytoplankton species Dunaliella tertiolecta towards smaller and larger body sizes. Within 100 generations (c. 1 year), we generated a fourfold difference in cell volume among selected lineages. Large-selected populations produced four times the energy than small-selected populations of equivalent total biovolume, but at the cost of much higher volume-specific respiration. These differences in energy utilisation between large (more productive) and small (more energy-efficient) individuals were used to successfully predict ecological performance (r and K) across novel resource regimes. We show that body size determines the performance of a species by mediating its net energy flux, with worrying implications for current trends in size reduction and for global carbon cycles.
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Data from: Environmental heterogeneity amplifies behavioural response to a temporal cycle
- 负责人:
- DOI:
- doi:10.5061/dryad.1447866
- 摘要:
- Resource acquisition is integral to maximise fitness, however in many ecosystems this requires adaptation to resource abundance and distributions that seldom stay constant. For predators, prey availability can vary at fine spatial and temporal scales as a result of changes in the physical environment, and therefore selection should favour individuals that can adapt their foraging behaviour accordingly. The tidal cycle is a short, yet predictable, temporal cycle, which can influence prey availability at temporal scales relevant to movement decisions. Here, we ask whether black-legged kittiwakes (Rissa tridactyla) can adjust their foraging habitat selection according to the tidal cycle using GPS tracking studies at three sites of differing environmental heterogeneity. We used a hidden Markov model to classify kittiwake behaviour, and analysed habitat selection during foraging. As expected for a central-place forager, we found that kittiwakes preferred to forage nearer to the breeding colony. However, we also show that habitat selection changed over the 12.4-hour tidal cycle, most likely because of changes in resource availability. Furthermore, we observed that environmental heterogeneity was associated with amplified changes in kittiwake habitat selection over the tidal cycle, potentially because environmental heterogeneity drives greater resource variation. Both predictable cycles and environmental heterogeneity are ubiquitous. Our results therefore suggest that, together, predictable cycles and environmental heterogeneity may shape predator behaviour across ecosystems.
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Data from: Novel application of explicit dynamics occupancy models to ongoing aquatic invasions
- 负责人:
- DOI:
- doi:10.5061/dryad.nd5m2
- 摘要:
- of Montana, USA from 2012-2016. 3. During this 5-year period, bullfrogs failed to establish at most sites they colonized. Bullfrog establishment was most li
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Data from: Water quality assessment of Australian ports using water quality evaluation indices
- 负责人:
- Vladimir Strezov
- 关键词:
- DOI:
- doi:10.5061/dryad.k5s20
- 摘要:
- in the year 2016–2017 from six ports in NSW, Australia, namely Port Jackson, Botany, Kembla, Newcastle, Yamba and Eden, were investigated to determine
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OpenFoodTox: EFSA's chemical hazards database
- 负责人:
- 关键词:
- contaminants critical study data collection data model feed additives food additives food contact materials nutrient sources pesticides processing aids
- DOI:
- doi:10.5281/zenodo.780543
- 摘要:
- \u2019s 2020 Science Strategy (EFSA, 2016) and to the aim of widening EFSA\u2019s evidence base and optimising access to its data as a valuable open source
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
OpenFoodTox: EFSA's chemical hazards database
- 负责人:
- 关键词:
- contaminants critical study data collection data model feed additives food additives food contact materials nutrient sources pesticides processing aids
- DOI:
- doi:10.5281/zenodo.1252752
- 摘要:
- actively to EFSA\u2019s 2020 Science Strategy (EFSA, 2016) and to the aim of widening EFSA\u2019s evidence base and optimising access to its data
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
GBIF Occurrence Download
- 负责人:
- DOI:
- doi:10.15468/dl.3pgmia
- 摘要:
- constituent datasets: 8 records from South Australian Museum Australia provider for OZCAM. 330 records from RV Investigator Voyage IN2016_V06 Seabird
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Abundance of an economically important nematode parasite increased in Puget Sound between 1930 and 2016: evidence from museum specimens
- 负责人:
- DOI:
- doi:10.5061/dryad.sc09839
- 摘要:
- d historical records of its abundance from the literature and from unpublished government agency data, and resampled the same locations using the same methods in 2017
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
GBIF Occurrence Download
- 负责人:
- DOI:
- doi:10.15468/dl.faymoo
- 摘要:
- de Loire - Données 2015. 18 records from Collection Crustacea - SNSD. 109 records from SIRFF - FNE Centre-Val de Loire - Données 2016. 1 records