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Lob Trees in the Wilderness: The Human and Natural History of the Boundary Waters Paperback – June 1, 2001
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The classic account of human impact on the North Woods.
Along the Minnesota-Ontario border, in the days of voyageurs, tall trees were used as guideposts in the uncharted wilderness to help fur traders and explorers find their way through the maze of lakes and portages. Branches were cut, leaving the middle of the trees bare with branches above and below. Clifford and Isabel Ahlgren, two of the most knowledgeable ecologists of the area, use nine native trees to serve as lob trees for this book, an ecological history of human activity in the Quetico-Superior wilderness area.
- Print length232 pages
- LanguageEnglish
- PublisherUniv Of Minnesota Press
- Publication dateJune 1, 2001
- Dimensions5.88 x 0.5 x 9 inches
- ISBN-100816638152
- ISBN-13978-0816638154
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About the Author
Clifford Ahlgren and Isabel Ahlgren have retired from forest ecology after working many years at the Wilderness Research Foundation in Ely, Minnesota.
Product details
- Publisher : Univ Of Minnesota Press (June 1, 2001)
- Language : English
- Paperback : 232 pages
- ISBN-10 : 0816638152
- ISBN-13 : 978-0816638154
- Item Weight : 9.6 ounces
- Dimensions : 5.88 x 0.5 x 9 inches
- Best Sellers Rank: #1,118,661 in Books (See Top 100 in Books)
- #1,005 in History Encyclopedias
- #2,005 in Ecology (Books)
- #2,477 in Environmental Science (Books)
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The chapter on flora is mainly about the most important exotic species and their history in the park. The chapter on forest fire is a defence for fire suppression. The authors glorify the skills and bravery of fire workers, and try to prove that there is always enough fire even if all the fires are suppressed. Later they even claim that fire suppression barely offsets the increase in fires caused by human activities. Instead of fires, the authors recommend "therapeutic" timber cutting for forest renewal, and planting of white and red pines. All the other tree species seem to have bad characters: jack pine is ugly, balsam fir stands are ecological deserts, and aspen facilitates alien plant invasions and is invader itself. The authors try to show that this aspen "of poor quality" constantly increases its area both in absence of disturbance and after disturbances. About the dense postfire jack pine forest, which results if the timber is not removed, the authors write: "We cannot afford, aesthetically, ecologically, or economically, such stands even in a wilderness area." For learning about the nature of the area, I recommend "The Boundary Waters Wilderness Ecosystem" by Heinselman.
Common names are used; there is a table for the Latin names at the end. There are B/W photos of mediocre quality. A good map is missing. According to Amazon, the book has been published in 2001 but the copyright is 1984. Consequently, the book is partly out-of-date, e.g. for the use statistics.