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Titolo:
The role of prescribed burning in maintenance of an endangered plant species, Lomatium bradshawii
Autore:
Pendergrass, KL; Miller, PM; Kauffman, JB; Kaye, TN;
Indirizzi:
Oregon State Univ, Dept Rangeland Resources, Corvallis, OR 97331 USA Oregon State Univ Corvallis OR USA 97331 sources, Corvallis, OR 97331 USA Bureau Land Management, Eugene, OR 97401 USA Bureau Land Management Eugene OR USA 97401 nagement, Eugene, OR 97401 USA Oregon State Univ, Dept Fisheries & Wildlife, Corvallis, OR 97331 USA Oregon State Univ Corvallis OR USA 97331 ildlife, Corvallis, OR 97331 USA Oregon Dept Agr, Plant Conservat Biol Program, Salem, OR 97310 USA Oregon Dept Agr Salem OR USA 97310 rvat Biol Program, Salem, OR 97310 USA
Titolo Testata:
ECOLOGICAL APPLICATIONS
fascicolo: 4, volume: 9, anno: 1999,
pagine: 1420 - 1429
SICI:
1051-0761(199911)9:4<1420:TROPBI>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
FIRE; PRAIRIES; DISTURBANCE; VEGETATION;
Keywords:
burning, management of wetland prairies; endangered plant species; fire as management tool; growth; Lomatium bradshawii; rare species; recruitment, endangered plant species; reproduction, rare plant species; wet prairie;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
51
Recensione:
Indirizzi per estratti:
Indirizzo: Miller, PM Oregon State Univ, Dept Rangeland Resources, Corvallis, OR 97331 USA Oregon State Univ Corvallis OR USA 97331 rvallis, OR 97331 USA
Citazione:
K.L. Pendergrass et al., "The role of prescribed burning in maintenance of an endangered plant species, Lomatium bradshawii", ECOL APPL, 9(4), 1999, pp. 1420-1429

Abstract

Responses of a federally listed endangered plant species, Lomatium bradshawii, to the use of fire as a management tool for maintaining remnant wetland prairies were evaluated at two public land areas in the Willamette Valleyof western Oregon. Areas containing L. bradshawii were treated with two orthree fall season prescribed burns during a nine-year period. Foliar crownarea, height, umbellets, and schizocarps of 150 L. bradshawii at Rose Prairie and 250 at Fisher Butte and the recruitment and density of L. bradshawii in 2-m(2) plots at both sites were documented during 1988-1996. When bothsites were considered together, crown area, height, umbellets, and schizocarps per plant initially responded positively to burn treatments, but increases were not consistent across years or sites. Crown area tended to increase and then decline after each burn. Burning initially enhanced schizocarp production at both sites; schizocarps declined one or two years after burning but remained much higher in the burn treatments than in controls until 1996. Seedling production was not correlated with schizocarp production at either site. Umbellet and schizocarp production were not correlated with January-June temperatures or precipitation at the nearest weather station. Burning accentuated differences in size and reproductive capacity of L. bradshawii at the two sites and differentially affected recruitment and density. Random resampling of L. bradshawii in 1997 indicated that effects of repeated burning during the previous eight years were hard to detect. At Rose Prairie, foliar crown area, height, number of leaves, umbellets, and schizocarps in 1997 were similar or lower with burning than in unburned controls. AtFisher Butte, L. bradshawii in the two burn treatment were similar to control plants, but three burns significantly increased foliar crown area, number of leaves, and schizocarps. Monitoring recovery for one or two years after a burn may only capture the initial stimulation provided by burning and may foster unrealistically high expectations concerning the viability of anendangered plant population.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 06:12:54