Correlation Between Fisher and Porcupine Abundance in Upper Michigan

Correlation Between Fisher and Porcupine Abundance in Upper Michigan

The abundance of porcupines (Erethizon dorsatum) in the Upper Peninsula of Michigan was determined from 1975 to 1977. A late winter census showed porcupines were significantly less common in areas where they coexisted with an established fisher (Martes pennanti) population (0.4 porcupines per km2) t...

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Veröffentlicht in:The American midland naturalist 1982-01, Vol.107 (2), p.244-249
Hauptverfasser: Earle, Richard D., Kramm, Kenneth R.
Format: Artikel
Sprache:eng
Schlagworte:
Ecological life histories
Erethizon dorsatum
Forest habitats
Forest service
Habitat preferences
Habitat selection
Martes pennanti
National forests
Porcupines
Predation
Roadside
Traffic flow
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Beschreibung
Zusammenfassung:The abundance of porcupines (Erethizon dorsatum) in the Upper Peninsula of Michigan was determined from 1975 to 1977. A late winter census showed porcupines were significantly less common in areas where they coexisted with an established fisher (Martes pennanti) population (0.4 porcupines per km2) than in areas without fishers (3.5 porcupines per km2). Abundance of dead porcupines found along road-kill routes through two national forests in 1976 and 1977 supported winter census results.
ISSN:0003-0031
1938-4238
DOI:10.2307/2425375