Search found 156 matches

by Lee Frelich
Sun Sep 30, 2012 12:20 pm
Forum: Forest Ecology and Processes
Topic: Deer 'cool' response of trees to warming climate
Replies: 6
Views: 4478

Deer 'cool' response of trees to warming climate

NTS members: A paper recently published in Global Change Biology (2012, doi: 10.1111/j.1365-2486.2012.02785.x, paper online now, likely to come out in print in the October or November issue) by my recently graduated PhD student Nick Fisichelli, myself and Peter Reich show that deer are likely to alt...
by Lee Frelich
Mon Apr 23, 2012 10:24 am
Forum: General Science Discussions
Topic: The Perils of Bite Sized Science
Replies: 2
Views: 929

Re: The Perils of Bite Sized Science

Ed, Chris: I think a combination of short and long papers is best. There are a lot of interesting topics that can be done in short papers, and short papers have always been welcome in forestry/forest ecology literature. However, there are also some topics where the complexities are tied together and...
by Lee Frelich
Sun Apr 22, 2012 9:10 am
Forum: Forest Fires
Topic: Prescribed burning in Minnesota oak savanna
Replies: 6
Views: 2655

Re: Prescribed burnin in Minnesota oak savanna

Chris: Yes, some of the bur oaks are impacted by these fire scars, but they have thicker bark (therefore not scarred as often) and can effectively contain rot when scarred, so that they still live much longer than northern pin oaks under a frequent burning regime. One thing I didn't mention previous...
by Lee Frelich
Sat Apr 21, 2012 1:55 pm
Forum: Forest Fires
Topic: Prescribed burning in Minnesota oak savanna
Replies: 6
Views: 2655

Prescribed burning in Minnesota oak savanna

ENTS: Its difficult to schedule a class field trip a month in advance which turns out to be the day of a fire, but this happened April 12 when I took my Forest fire and disturbance ecology class to the University of Minnesota's Cedar Creek Ecosystem Science Reserve, 35 miles north of the Twin Cities...
by Lee Frelich
Thu Mar 22, 2012 8:10 am
Forum: Spring Awakenings - Phenology
Topic: Magnolias in full bloom in Minneapolis
Replies: 6
Views: 6291

Re: Magnolias in full bloom in Minneapolis

Ryan: This is a signature event for global warming. There is no doubt that if this type of weather were to persist and become the normal climate, it would kill the boreal forest. I view this spring's weather as a time machine that allows us a short peek at what a typical spring might be like several...
by Lee Frelich
Wed Mar 21, 2012 6:22 pm
Forum: Spring Awakenings - Phenology
Topic: Magnolias in full bloom in Minneapolis
Replies: 6
Views: 6291

Magnolias in full bloom in Minneapolis

ENTS: The earliest known arrival of spring has occurred in Minnesota this March. Snow is gone throughout northern MN and Upper Michigan. Ice out is occurring fast on Minnesota Lakes. The season's first tornado occurred Monday. In the last week, temperatures have been as much as 40 degrees above aver...
by Lee Frelich
Sun Mar 04, 2012 2:51 pm
Forum: Norway
Topic: Sturdy Scandinavian Conifers Survived Ice Age
Replies: 4
Views: 3055

Re: Sturdy Scandinavian Conifers Survived Ice Age

Ed, Joe: I guess its not too surprising that spruce would survive in a refugium not covered by ice. All its needs is 6 weeks where daytime temperatures are above 50 degrees F to finish its life cycle. I suppose its possible that black spruce or tamarack may one day be discovered to have persisted in...
by Lee Frelich
Sun Mar 04, 2012 2:17 pm
Forum: Forest Ecology and Processes
Topic: Stages of earthworm invasion
Replies: 42
Views: 13463

Re: Stages of earthworm invasion

Joe, Yes, I was aware of this research of earthworm impacts on native birds, in fact I was on Scott Loss's Ph D advisory committee, and he was using some of the research sites I established with Graduate students Cindy Hale and Andy Holdsworth during the early 2000s. There is also research going on ...
by Lee Frelich
Sun Mar 04, 2012 2:09 pm
Forum: General Discussions
Topic: World's oldest forest discovered by State Museum researchers
Replies: 2
Views: 765

Re: World's oldest forest discovered by State Museum researc

Ed: Interesting forest--the biggest trees look like big horsetails, and also interesting that the tallest trees didn't have wood, and the wood that another species did have was below ground rhizomes. Because evolution is essentially a process by which new things are made with part's available from e...
by Lee Frelich
Sat Feb 25, 2012 1:58 pm
Forum: Urban Forests, Trees, and Landscapes
Topic: Tree and impervious cover change in U.S. cities
Replies: 3
Views: 3093

Re: Tree and impervious cover change in U.S. cities

Ed: For Minneapolis, my guess is that we lost tree cover due to a second round of Dutch Elm Disease and a few derechos that hit during the mid 2000s. This took out trees with very large crowns, and although a lot of smaller trees were planted to replace them, their crowns are still quite small. This...

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