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Nitrogen Input, Nitrogen Surplus, and Nitrogen Use Efficiency Globally and for Selected Regions
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关键词:
Nitrogen Nitrogen Use Efficiency N-fertilizer N-surplus Biological Nitrogen Fixation
DOI:
doi:10.5281/zenodo.3384678
摘要:
agricultural system, including crops and grassland. Also included is N-surplus (SURPLUS) for cropping systems, which is calculated as the difference between the total
Data from: Suppression of the invasive plant mile-a-minute (Mikania micrantha) by local crop sweet potato (Ipomoea batatas) by means of higher
负责人:
关键词:
sweet potato competition soil nutrients biological control mile-a-minute
DOI:
doi:10.5061/dryad.vb1qv
摘要:
. Results: In monoculture the total biomass biomass of adventitious root leafstalk length and leaf area of sweet potato were all higher than those of mile
Data from: Brood size matching: a novel perspective on predator dilution
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关键词:
Behavior: antipredator;Somateria mollissima;Behavior: social;Behavior: reproductive;Game theory;Ecology: behavioral;Interactions: predation
DOI:
doi:10.5061/dryad.mn11k
摘要:
to total group size. Therefore, the willingness of a subgroup to merge with others should increase the less it contributes to total group size
Data from: Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird
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关键词:
age-specific mortality;Brood survival;kin selection;brood reduction;offspring survival;parent-offspring conflict;chick growth;1992-2005;Parental neglect;Chick mortality;Sterna hirundo;life-history evolution
DOI:
doi:10.5061/dryad.6ck7g
摘要:
only 9.3% of the total energy consumption of all hatched chicks in the population before fledging. We suggest that rapid mortality of excess offspring is part of an adaptive brood reduction
Data from: Sibling cooperation in earwig families provides insights into the early evolution of social life
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关键词:
Sibling cooperation
DOI:
doi:10.5061/dryad.7c4m8
摘要:
food deprivation or relatedness influenced the total amount of transferred food, but relatedness affected frass release and the behavioral mechanisms mediating
Political Systems Performance Data: France, Sweden, and the United Kingdom, 1850-1965;;Archival Version
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DOI:
doi:10.3886/icpsr00035
摘要:
, total public expenditures on defense, education, pension, welfare, health, veterans' benefits, and labor, labor union membership, the number of total
Stream chemistry for core sites in Gwynns Falls: concentration of Cl, NO3, PO4, total N and P, SO4, dissolved oxygen, E. coli, plus temperature, pH
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关键词:
DOI:
doi:10.6073/pasta/ac102e6fed07d1abecf65f28d39e9ed6
摘要:
Stream chemistry for core sites in Gwynns Falls: concentration of Cl, NO3, PO4, total N and P, SO4, dissolved oxygen, E. coli, plus temperature, pH
Stream chemistry for core sites in Gwynns Falls: concentration of Cl, NO3, PO4, total N and P, SO4, dissolved oxygen, E. coli, plus temperature, pH
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关键词:
DOI:
doi:10.6073/pasta/dfaa8b33f8b84ac1dfd947e9d57ccbe6
摘要:
Stream chemistry for core sites in Gwynns Falls: concentration of Cl, NO3, PO4, total N and P, SO4, dissolved oxygen, E. coli, plus temperature, pH
Political Systems Performance Data: France, Sweden, and the United Kingdom, 1850-1965;;Version 1
负责人:
关键词:
DOI:
doi:10.3886/icpsr00035.v1
摘要:
, total public expenditures on defense, education, pension, welfare, health, veterans' benefits, and labor, labor union membership, the number of total
Data from: Patterns of livestock depredation and cost-effectiveness of fortified livestock enclosures in northern Tanzania
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关键词:
Panthera leo;Canis mesomelas;human-wildlife conflict;Panthera pardus;Acinonyx jubatus;Crocuta crocuta
DOI:
doi:10.5061/dryad.28fr4qh
摘要:
), spotted hyena (Crocuta crocuta), jackal (Canis mesomelas), and cheetah (Acinonyx jubatus)] raids on fortified (n=45, total 631 monthly visits) and unfortified

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