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Author : Vilis Kurmis
Publisher : Unknown
Page : 226 pages
File Size : 43,5 Mb
Release : 1978
Category : Botany
ISBN : MINN:31951D01401985G
Author : Anonim
Publisher : Unknown
Page : 150 pages
File Size : 48,6 Mb
Release : 1981
Category : Historic sites
ISBN : MINN:31951D005074792
Author : Voyageurs National Park (Minn.)
Publisher : Unknown
Page : 294 pages
File Size : 40,9 Mb
Release : 1991
Category : Environmental impact analysis
ISBN : UOM:39015024897228
Author : United States. National Park Service
Publisher : Unknown
Page : 152 pages
File Size : 40,6 Mb
Release : 1988
Category : Government publications
ISBN : PURD:32754074847629
Author : Anonim
Publisher : Unknown
Page : 424 pages
File Size : 42,9 Mb
Release : 1992
Category : Electronic
ISBN : NWU:35556030592620
Author : Leland H. Grim,Larry W. Kallemyn
Publisher : Unknown
Page : 36 pages
File Size : 46,5 Mb
Release : 1995
Category : Bald Eagle
ISBN : IND:30000042393656
Annual number of breeding pairs, fledged eaglets, and reproductive success increased during the study but below reproductive success of healthy bald eagle populations.
Author : Anonim
Publisher : Unknown
Page : 166 pages
File Size : 45,6 Mb
Release : 2007
Category : Botany
ISBN : MINN:31951D023677536
Author : Anonim
Publisher : Unknown
Page : 1198 pages
File Size : 55,9 Mb
Release : 1980
Category : Wildlife conservation
ISBN : MINN:31951T001080650
Author : Lawrence Campbell Merriam
Publisher : Unknown
Page : 16 pages
File Size : 42,8 Mb
Release : 1981
Category : Voyageurs National Park (Minn.)
ISBN : MINN:31951D014157840
Author : Kenneth L. Cole
Publisher : Unknown
Page : 126 pages
File Size : 48,9 Mb
Release : 1992
Category : Climatic changes
ISBN : MINN:31951D028375163
Author : Anonim
Publisher : Unknown
Page : 118 pages
File Size : 43,5 Mb
Release : 2003
Category : Aquatic ecology
ISBN : UOM:39015061773118
Voyageurs National Park (VOYA) in northern Minnesota contains significant aquatic resources including 30 lakes and numerous wetlands. This synthesis contains an integrated account of what is known about the aquatic resources of VOYA; compares VOYA resources to those of other areas; and identifies opportunities and needs for future studies and surveys. Surveys and studies in VOYA have identified fifty-four fish species from 16 families 820 vascular plant species and 7 amphibian and 3 reptile species (higher numbers probably occur). Estimates of relative abundance for phyto- and zooplankton vary among VOYA lakes and depths surveyed. The VOYA fish populations and communities have been the most intensively studied. Twenty-eight percent of VOYA wetlands are the result of beaver activity. Mercury contamination and its food-chain bioaccumulation in VOYA are of particular concern. An integrated monitoring plan is needed in VOYA to provide continuous data and information on the complex physical chemical, and biological factors that influence aquatic systems. Resource managers in VOYA will use this information to understand and explain observed changes and to predict the potential for future changes.
Author : Anonim
Publisher : Unknown
Page : 736 pages
File Size : 50,9 Mb
Release : 1980
Category : Biology
ISBN : MINN:319510000444219
Author : Minnesota. Department of Natural Resources
Publisher : Unknown
Page : 92 pages
File Size : 49,8 Mb
Release : 1978
Category : Forests and forestry
ISBN : MINN:31951D01190295D
Author : Anonim
Publisher : Unknown
Page : 942 pages
File Size : 44,8 Mb
Release : 1986
Category : Botany
ISBN : WISC:89048692875
Author : United States. National Park Service
Publisher : Unknown
Page : 36 pages
File Size : 40,8 Mb
Release : 1975
Category : Voyageurs National Park (Minn.)
ISBN : MINN:31951D002872329