Location
University of Nevada Las Vegas, Greenspun Hall (first & second floor lobby)
Description
There is a great deal of uncertainty as to how biological communities respond to changes in land use and climate change, a situation particularly relevant in protected areas such as national parks that were designated to conserve specific biological features. Utilizing extant vegetation data sets with repeatable methodology can provide opportunities for insight into previous vegetation change and provide base line data for long-term monitoring projects useful for modeling vegetation community trajectories. We have relocated and resurveyed 106 sites from a vegetation community study initiated in 1979 in the Newberry Mountains, southern Nevada, within Lake Mead National Recreation Area managed by the National Park Service. The original methods were repeated and used to establish permanent long-term monitoring plots. All perennial plant species were measured for density, frequency and cover within each plot. In comparing 1979 and 2008 data sets we wanted to know if changes have occurred in the vegetation community and if the degree of change differs along environmental gradients and among individual species.
Keywords
Climate change; Lake Mead National Recreation Area; Mojave desert; Mojave-Sonora desert boundary; Plant communities; Plant diversity; Vegetation changes
Disciplines
Desert Ecology | Environmental Indicators and Impact Assessment | Environmental Monitoring | Plant Sciences | Systems Biology
Language
English
Included in
Desert Ecology Commons, Environmental Indicators and Impact Assessment Commons, Environmental Monitoring Commons, Plant Sciences Commons, Systems Biology Commons
29 years of vegetation community change across environmental gradients in a Mojave Desert mountain range
University of Nevada Las Vegas, Greenspun Hall (first & second floor lobby)
There is a great deal of uncertainty as to how biological communities respond to changes in land use and climate change, a situation particularly relevant in protected areas such as national parks that were designated to conserve specific biological features. Utilizing extant vegetation data sets with repeatable methodology can provide opportunities for insight into previous vegetation change and provide base line data for long-term monitoring projects useful for modeling vegetation community trajectories. We have relocated and resurveyed 106 sites from a vegetation community study initiated in 1979 in the Newberry Mountains, southern Nevada, within Lake Mead National Recreation Area managed by the National Park Service. The original methods were repeated and used to establish permanent long-term monitoring plots. All perennial plant species were measured for density, frequency and cover within each plot. In comparing 1979 and 2008 data sets we wanted to know if changes have occurred in the vegetation community and if the degree of change differs along environmental gradients and among individual species.