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Full-Text Articles in Life Sciences
Tb157: Capture, Care, And Handling Of Fishers (Martes Pennanti), Herbert C. Frost, William B. Krohn
Tb157: Capture, Care, And Handling Of Fishers (Martes Pennanti), Herbert C. Frost, William B. Krohn
Technical Bulletins
These authors brought fishers into captivity to assess the reproductive cycles of both sexes and to monitor females with known reproductive histories. In addition, kits born in captivity were raised to sexual maturity to monitor growth and development. Here they report on the rates at which fishers were caught, the care and maintenance of fishers while in captivity, and the handling procedures used with 44 fishers taken from the wild and 38 fishers conceived in the wild and born in captivity, during the period from 1990 to 1993.
Beaver Recolonization In South-Central Maine, Laurence Lisle Ii
Beaver Recolonization In South-Central Maine, Laurence Lisle Ii
Electronic Theses and Dissertations
Following a long absence due to over-trapping, beaver (Castor canadensis) recolonized most of their continental range during the middle of the 20th century. The spread of beaver across the landscape was revealed by the emergence of beaver-created wetlands, or flowages. Based on the appearance of flowages on aerial photographs from 1939, 1957, 1974, and 1991, I documented the return of beaver to a 105 km^ watershed in south-central Maine. I sought to determine if certain wetland characteristics—area, perimeter to dam length (p/d) ratio, and watershed size—influenced the order in which sites were occupied by beaver. Also, to gauge the effect …