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Titolo:
MARTEN SELECTION OF POSTFIRE SERES IN THE ALASKAN TAIGA
Autore:
PARAGI TF; JOHNSON WN; KATNIK DD; MAGOUN AJ;
Indirizzi:
US FISH & WILDLIFE SERV,POB 287 GALENA AK 99741 US FISH & WILDLIFE SERV GALENA AK 99741 ALASKA DEPT FISH & GAME FAIRBANKS AK 99701
Titolo Testata:
Canadian journal of zoology
fascicolo: 12, volume: 74, anno: 1996,
pagine: 2226 - 2237
SICI:
0008-4301(1996)74:12<2226:MSOPSI>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOUTH-CENTRAL ALASKA; NORTHWEST-TERRITORIES; HABITAT SELECTION; FOOD-HABITS; AMERICANA; MAINE; POPULATION; MOVEMENTS; SITES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
48
Recensione:
Indirizzi per estratti:
Citazione:
T.F. Paragi et al., "MARTEN SELECTION OF POSTFIRE SERES IN THE ALASKAN TAIGA", Canadian journal of zoology, 74(12), 1996, pp. 2226-2237

Abstract

During 1991-1994 we tested whether martens (Martes americana) selectively used postfire seres in the Alaskan taiga and whether selection could be explained by differences in marten hunting behaviour, habitat, prey abundance, or demography. Forest seral stages included early-successional tall shrub - sapling (1985 burn), midsuccessional dense tree (1966 burn), and mature coniferous (100-115 years old). Most studies of marten-habitat relationships from lower latitudes suggest that martens require coniferous forest and avoid open areas. We found that martens did not select forest cover types or burn features at the stand scale (within the home range). However, marten abundance was greatest in the 1985 burn, which had the lowest canopy cover but the highest coarse woody debris density, autumn arvicoline biomass, and winter hunting intensity (index to foraging suitability). Martens in the 1985 burn were predominantly juvenile, with few adult (greater than or equal to 2 years old) females present. We hypothesize that our study area of predominantly early -midsuccessional forest was a ''sink'' for immature and transient martens dispersing from surrounding mature forest. If our hypothesis is correct and applies elsewhere in the taiga, then fur trapping for martens in recent burns could be a productive yet conservative harvest strategy. Future research should focus on habitat requirements of parturient females.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/07/20 alle ore 16:43:20