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Data from: Nitrogen loads influence trophic organization of estuarine fish assemblages
负责人:
关键词:
isotopic niche indices;trophic niche;stable isotope;bottom-up control;nutrients
DOI:
doi:10.5061/dryad.4966m
摘要:
ted standardized isotopic niche indices of fish assemblages to nitrogen and phosphorous loads and hydrological flushing of the estuaries in autumn and spring
Data from: Long-term changes in the seasonal timing of landbird migration on the Pacific Flyway
负责人:
关键词:
Setophaga petechia;Catharus ustulatus;quantile regression;Cardellina pusilla;Empidonax difficilis;Oreothlypis celata;climate indices;timing of migration;1987 to 2008
DOI:
doi:10.5061/dryad.t00nn
摘要:
) and Yellow Warbler (Setophaga petechia). Median timing of migration advanced in spring for 2 of the 5 species (?2.5 days decade?1) but was delayed duri
Data from: Evaluation of potential overwinter mortality of age-0 walleye and appropriate age-1 sampling gear
负责人:
关键词:
Sander vitreus;walleye;length;weight;catch per unit effort
DOI:
doi:10.5061/dryad.08pv2
摘要:
in length-frequency distributions of collected spring age-1 Walleye between the two gears. Age-0 fall relative abundance indices from electrofishing were significantly gre
Time Series of expected Nebraska Sandhills livestock forage (2000 - 2016)
负责人:
关键词:
Land Use Change, Remote Sensing
DOI:
doi:10.5066/p9boio3d
摘要:
and weather data. Expected biomass (EB), EEP converted to biomass in kg ha/yr, then determined the appropriate indices and date of the growing season to monitor
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
负责人:
关键词:
net primary productivity cropland agriculture U.S. Midwest
DOI:
doi:10.5063/aa/nceas.184.2
摘要:
; (2) conversion from fresh weight to dry weight; (3) estimation of above-ground yield using crop harvest indices, defined as the ratio of economic pr
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
负责人:
关键词:
net primary productivity cropland agriculture U.S. Midwest
DOI:
doi:10.5063/aa/nceas.184.8
摘要:
; (2) conversion from fresh weight to dry weight; (3) estimation of above-ground yield using crop harvest indices, defined as the ratio of economic pr
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
负责人:
关键词:
net primary productivity cropland agriculture U.S. Midwest
DOI:
doi:10.5063/aa/nceas.184.1
摘要:
; (2) conversion from fresh weight to dry weight; (3) estimation of above-ground yield using crop harvest indices, defined as the ratio of economic pr
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
负责人:
关键词:
net primary productivity cropland agriculture U.S. Midwest
DOI:
doi:10.5063/aa/nceas.184.6
摘要:
; (2) conversion from fresh weight to dry weight; (3) estimation of above-ground yield using crop harvest indices, defined as the ratio of economic pr
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
负责人:
关键词:
net primary productivity cropland agriculture U.S. Midwest
DOI:
doi:10.5063/aa/nceas.184.7
摘要:
; (2) conversion from fresh weight to dry weight; (3) estimation of above-ground yield using crop harvest indices, defined as the ratio of economic pr

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