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150325s2003 xx |||||o 00| ||eng c |
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|a (DE-627)JST083716653
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|a (JST)3672762
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Titus, Jonathan H.
|e verfasserin
|4 aut
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| 245 |
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|a Ski Slope Vegetation of Lee Canyon, Nevada, USA
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|c 2003
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|a Text
|b txt
|2 rdacontent
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|a Computermedien
|b c
|2 rdamedia
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|a Online-Ressource
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|a Ski-slope plant communities on Lee Canyon in the Spring Mountains of southern Nevada were surveyed to assess effects of disturbance and environmental factors important in structuring vegetation. Ski runs extended from 2,620 to 2,890 m on the north face of Mount Charleston. Eleven plant communities were identified, including 4 types only on slopes, 1 type only in adjacent forest, and 6 types that occurred on both slopes and in forest. Distance to gravel service roads on the ski runs, soil compaction, ski run width, distance to the forest edge, and gullies were the most important variables in structuring vegetation. Nonnative species were found at all elevations and were frequently dominant. Nonnative species cover and richness were negatively correlated with percent bare area, because the nonnative species vegetated the slopes more densely than the native species. Relative to ski runs in other areas, those on Mount Charleston had high nonnative species invasion and few bare areas; vegetation rarely resembled that of surrounding forests and meadows, except in areas of heavy tree invasion. /// Se estudiaron las comunidades vegetales de los senderos para esquiar en Lee Canyon en las Spring Mountains en el sur del estado de Nevada, USA para evaluar los efectos del disturbio y los factores ambientales importantes en la estructura de la vegetación. Los senderos para esquiar se extendieron desde 2,650 hasta 2,890 m.s.n.m por el lado norte de Mount Charleston. Se encontraron 11 comunidades de plantas, incluyendo 4 tipos ubicados únicamente en las laderas, 1 tipo únicamente en el bosque adyacente y 6 tipos que ocurrieron en las laderas y también en el bosque. Las variables más importantes en la estructura de la vegetación fueron la compresión del suelo, el ancho del sendero, la distancia hasta la orilla del bosque, la distancia hasta caminos de grava y las quebradas. Especies no nativas se encontraron a todas alturas y frecuentemente fueron dominantes. Hubo una correlación negativa entre la cobertura y riqueza de vegetación no nativa y el porcentaje de suelo desnudo, porque las especies no nativas habitaban las laderas más densamente que las nativas. En comparación con senderos para esquiar en otros sitios, los de Mount Charleston tuvieron niveles más altos de invasión por especies no nativas y menos áreas sin vegetación. La vegetación de los senderos de esquiar de Mount Charleston se parece muy poco a la de los bosques o pradera a sus alrededores, excepto en áreas de mucha invasión de árboles.
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4 |
|a Behavioral sciences
|x Leisure studies
|x Recreation
|x Sports
|x Sporting goods
|x Sports equipment
|x Skis
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Geomorphology
|x Landforms
|x Erosional landforms
|x Canyons
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| 650 |
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4 |
|a Biological sciences
|x Ecology
|x Population ecology
|x Synecology
|x Biocenosis
|x Plant communities
|x Forests
|x Coniferous forests
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Geomorphology
|x Topography
|x Sloping terrain
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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 Biology
|x Biological taxonomies
|x Species
|x Introduced species
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| 650 |
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4 |
|a Biological sciences
|x Ecology
|x Population ecology
|x Synecology
|x Biocenosis
|x Plant communities
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Botany
|x Dendrology
|x Trees
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Botany
|x Plant ecology
|x Vegetation
|x Vegetation structure
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| 650 |
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4 |
|a Applied sciences
|x Engineering
|x Civil engineering
|x Infrastructure
|x Transportation infrastructure
|x Roads
|x Forest roads
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| 655 |
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4 |
|a research-article
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| 700 |
1 |
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|a Landau, Fred
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The Southwestern Naturalist
|d Southwestern Association of Naturalist
|g 48(2003), 4, Seite 491-504
|w (DE-627)JST083713697
|x 19436262
|7 nnns
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| 773 |
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|g volume:48
|g year:2003
|g number:4
|g pages:491-504
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|u https://www.jstor.org/stable/3672762
|3 Volltext
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|a AR
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|d 48
|j 2003
|e 4
|h 491-504
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