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150324s1990 xx |||||o 00| ||eng c |
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|a 10.2307/3898917
|2 doi
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|a (DE-627)JST051807319
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|a (JST)3898917
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Uresk, Daniel W.
|e verfasserin
|4 aut
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|a Using Multivariate Techniques to Quantitatively Estimate Ecological Stages in a Mixed Grass Prairie
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|c 1990
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|a Text
|b txt
|2 rdacontent
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|a Computermedien
|b c
|2 rdamedia
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| 338 |
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|a Online-Ressource
|b cr
|2 rdacarrier
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|a Cluster analysis followed by stepwise discriminant analysis was used to delineate ecological stages on a mixed grass prairie in western South Dakota. Forty-seven variables were analyzed for 48 sites ranging from potential vegetation to early seral stages. A cover-frequency index for western wheatgrass (Agropyron smithii), blue grama (Bouteloua gracilis), and buffalograss (Buchloe dactyloides) was the most valuable in identifying 4 different (P<0.0001) ecological stages. Ecological stage classification was estimated to be 95% accurate. The methods presented are quantitative, precise, easy, time-efficient, and meet the goals of resource managers with a minimum of bias.
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|a Copyright 1990 The Society for Range Management
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|a Discriminant analysis
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|a ISODATA
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|a Mixed grass prairie
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|a Range
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| 650 |
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|a Classification
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| 650 |
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|a Biological sciences
|x Biology
|x Botany
|x Plants
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Biological taxonomies
|x Species
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Botany
|x Plant ecology
|x Vegetation
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| 650 |
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4 |
|a Biological sciences
|x Ecology
|x Population ecology
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| 650 |
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4 |
|a Mathematics
|x Applied mathematics
|x Statistics
|x Applied statistics
|x Statistical analysis
|x Discriminant analysis
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| 650 |
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4 |
|a Biological sciences
|x Agriculture
|x Agricultural sciences
|x Agroecology
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Zoology
|x Animals
|x Domesticated animals
|x Livestock
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Botany
|x Plants
|x Grasses
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| 650 |
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|a Biological sciences
|x Ecology
|x Applied ecology
|x Environmental management
|x Natural resource management
|x Land management
|x Range management
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| 650 |
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|a Economics
|x Economic disciplines
|x Applied economics
|x Econometrics
|x Economic statistics
|x Production statistics
|x Production estimates
|x Plant Ecology
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|a research-article
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|i Enthalten in
|t Journal of Range Management
|d Society for Range Management, 1948
|g 43(1990), 4, Seite 282-285
|w (DE-627)334373085
|w (DE-600)2057410-1
|x 0022409X
|7 nnns
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| 773 |
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|g volume:43
|g year:1990
|g number:4
|g pages:282-285
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|u https://www.jstor.org/stable/3898917
|3 Volltext
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|u https://doi.org/10.2307/3898917
|3 Volltext
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|d 43
|j 1990
|e 4
|h 282-285
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