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- Knapp, Roland A.; Matthews, Kathleen R.; Preisler, Haiganoush K.; Jellison, Robert
- Ecological applications 2003 v.13 no.4 pp. 1069
- Rana; frogs; amphibians; probabilistic models; wildlife habitats; lakes; habitat fragmentation; altitude; surface water level; spatial distribution; freshwater fish; predation; wildlife management; California
- ... Human‐caused fragmentation of habitats is threatening an increasing number of animal and plant species, making an understanding of the factors influencing patch occupancy ever more important. The overall goal of the current study was to develop probabilistic models of patch occupancy for the mountain yellow‐legged frog (Rana muscosa). This once‐common species has declined dramatically, at least in ...
- Martin, Roberta E.; Asner, Gregory P.; Ansley, R. James; Mosier, Arvin R.
- Ecological applications 2003 v.13 no.4 pp. 897
- gas emissions; rangelands; savanna soils; greenhouse gases; nitrous oxide; woody plants; ecological invasion; arid lands; semiarid zones; land use change; vegetation cover; Prosopis glandulosa; rangeland soils; nitric oxide; nitrification; biological activity in soil; soil pH; soil temperature; soil water content; nitrogen; spatial variation; temporal variation; soil physical properties; soil chemical properties; soil texture; Texas
- ... Woody vegetation has encroached into areas once dominated by herbaceous land cover in arid and semiarid regions of the southwestern United States and around the world, resulting in documented changes to the biophysical and biogeochemical structure of these ecosystems during the past century. In North Texas rangelands, encroaching mesquite (Prosopis glandulosa var. glandulosa), a known nitrogen (N) ...