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Project ID: 07-1-3-24

Year: 2007

Date Started: 06/13/2007

Date Completed: 12/30/2010

Title: Revegetating Burned Arid Lands: Identifying Successful Native Species Using Trait and Competition Analysis

Project Proposal Abstract: Native species selected for revegetating burned southwestern arid lands must meet at least two criteria. These species must (1) be able to be reliably established, and (2) successfully compete in post-fire environments dominated by exotic annual grasses. Little research has been directed toward finding native species with these desirable traits for revegetating burns, leaving managers with little guidance for selecting seed mixes or species for planting. This research will integrate four studies to examine the establishment and competitive abilities of nine native perennials with Bromus rubens and Schismus sp., exotic grasses responsible for heavy fuel loads in the Mojave Desert. We will test the following hypotheses: (1) native species with the greatest soil nutrient-reducing abilities most effectively depress exotic grass dominance in both high- and low-nutrient environments; (2) these competitive natives also are the most easily established species for revegetating burns; (3) native species differentially resist exotic grass invasion and this ability can be predicted from functional traits; (4) maintenance-free, slow-release irrigation and shelters enhance native plant survival for burn revegetation; and (5) species with the greatest competitive abilities can be established by seeding at the least amounts of precipitation along a simulated precipitation gradient. Our goal is to provide managers with guidance for selecting native species that have the greatest chance for success in revegetation projects. The proposed approach of testing species along a functional gradient also may have broader applicability as a general screening method for identifying successful revegetation species to address Task 3 of the 2007 AFP.

Principal Investigator: Scott R. Abella

Agency/Organization: University of Nevada-Las Vegas

Branch or Dept: School of Environmental and Public Affairs


Other Project Collaborators

Type

Name

Agency/Organization

Branch or Dept

Co-Principal Investigator

Stanley D. Smith

University of Nevada-Las Vegas

School of Life Sciences

Federal Cooperator

Alice C. Newton

NPS-National Park Service

Lake Mead National Recreation Area

Federal Fiscal Representative

Thomas S. Cook

NPS-National Park Service

Lake Mead National Recreation Area


Project Locations

Consortium

California

Southwest


Level

State

Agency

Unit

STATE

NV

BLM

Southern Nevada District

STATE

NV

NPS

ALL


Project Deliverables

Final Report view or print

("Results presented in JFSP Final Reports may not have been peer-reviewed and should be interpreted as tentative until published in a peer-reviewed source.")

  ID Type Title
view or print   1731 Government Publication Native Species Interactions with Red Brome: Suggestions for Burn-Area Revegetation
view or print   1732 Government Publication Post-Fire Recovery of Native Perennials in the Mojave, Sonoran Deserts
view or print   1435 Government Publication Management-Oriented Technical Summaries of this Project
view or print   2972 Journal Article Journal of Arid Environments
view or print   3382 Journal Article Native Plants
view or print   3388 Journal Article Restoration Ecology
view or print   3259 Journal Article Journal of Arid Environments
view or print   3702 Poster Exotic Annual Plant Invasions and Their Relationships to Roads and Native Perennial Species in the Mojave Desert, Southwestern USA
  go to website 3705 Website Project website, to receive additional updates as projects continue after formal JFSP project end
view or print   3706 Photo Planting and Seeding Operations on the 2005 Goodsprings Fire
view or print   3707 Photo Cages for Reducing Seed Predation in the Seeding Component of the Experiment on the 2005 Goodsprings Fire
view or print   3708 Photo Experimental Plots to Examine Native Species and Communities that Best Reduce the Establishment of Exotic Annual Grasses in the Mojave Desert
view or print   5507 Photo Constructing Experimental Plots to Examine Native Species and Communities that Best Reduce the Establishment of Exotic Annual Grasses in the Mojave Desert
view or print   5508 Photo Experimental Plots to Examine Native Species Monocultures that Best Reduce the Establishment of Exotic Annual Grasses in the Mojave Desert
view or print   7022 Photo Experimental Community Plots to Examine Native Perennial Communities that Best Reduce the Establishment of Exotic Annual Grasses in the Mojave Desert

Supporting Documents

The following supporting documents are available for this project.

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