Search found 33 matches

by gjschmidt
Sun Feb 08, 2015 1:46 pm
Forum: General Discussions
Topic: Tree species size distribution of temperate vs. tropical
Replies: 16
Views: 4761

Re: Tree species size distribution of temperate vs. tropical

Also, the counties being compared are of different sizes. Humboldt County, CA is substantially lager than Sevier County, TN. Therefore California is potentially biased towards slightly more species. I also do not doubt that some individual purported typical height values are questionable, but hopefu...
by gjschmidt
Sun Feb 08, 2015 1:01 pm
Forum: General Discussions
Topic: Tree species size distribution of temperate vs. tropical
Replies: 16
Views: 4761

Re: Tree species size distribution of temperate vs. tropical

I have compiled a set of typical maximum tree heights based on Elias's Trees of North America, Little's Common Trees of Puerto Rico and the Virgin Islands, and Little's Common Forest Trees of Hawaii. I had to fill in some gaps when necessary for some specie for which no mention of height was made. I...
by gjschmidt
Sun Feb 01, 2015 11:27 am
Forum: General Discussions
Topic: Tree species size distribution of temperate vs. tropical
Replies: 16
Views: 4761

Re: Tree species size distribution of temperate vs. tropical

I don't know how large an area the Barrow Colorado Island site's data represents. But inherent in the large species list is that fewer individuals per species with opportunities to reach their potentials for a given sample size. With only one locale within the respective ranges of these species, it ...
by gjschmidt
Sat Jan 31, 2015 1:47 pm
Forum: General Discussions
Topic: Tree species size distribution of temperate vs. tropical
Replies: 16
Views: 4761

Tree species size distribution of temperate vs. tropical

I was trying to determine what the typical canopy heights are in the Eastern United States (not just maximums) as compared to the tropical rain forests. I also wanted some sort of base line to compare forests in my area. I found the perfect reference for this: King, D. A., S. J. Wright, and J. H. Co...
by gjschmidt
Sat Jan 31, 2015 12:53 pm
Forum: Tree Species, Families and Identification
Topic: Re: Florida Tree Species Diversity vrs Appalachia
Replies: 15
Views: 3771

Re: Re: Florida Tree Species Diversity vrs Appalachia

Josh, You may use any of the maps on FB or BONAP.org for presentation, with proper attribution to myself and John Kartesz of BONAP. For formal publications, I would refer you to John Kartesz. However, I am probably a couple of weeks away from a whole rewrite of the density gradient page at BONAP. I ...
by gjschmidt
Sun Jan 18, 2015 11:24 am
Forum: General Science Discussions
Topic: Ice Age Central America hosted temperate species
Replies: 1
Views: 978

Re: Ice Age Central America hosted temperate species

All those trees mentioned except spruce still occur in northern Central America, especially in the higher elevations. "Trees of Guatemala" is one of the few comprehensive books on trees in this area. http://www.amazon.com/gp/aw/d/0971873909/ref=mp_s_a_1_2?qid=1421598347&sr=8-2&pi=AC_SY200_QL40&dpPl=...
by gjschmidt
Sat Jan 17, 2015 9:00 am
Forum: Tree Species, Families and Identification
Topic: Re: Florida Tree Species Diversity vrs Appalachia
Replies: 15
Views: 3771

Re: Re: Florida Tree Species Diversity vrs Appalachia

According to the US National Vegetation Classification Standard, this is a tree: http://www.esapubs.org/archive/mono/M084/020/appendix-B.php Tree - A woody plant that generally has a single main stem and a more or less definite crown. In instances where growth form cannot be readily determined, wood...
by gjschmidt
Fri Jan 16, 2015 10:53 pm
Forum: Tree Species, Families and Identification
Topic: Re: Florida Tree Species Diversity vrs Appalachia
Replies: 15
Views: 3771

Re: Florida Tree Species Diversity vrs Appalachia

In terms of tree species per unit area, south Florida fairs quite well relative to Appalachia. It is rivaled by the Florida panhandle, and exceeded by them in terms of vascular plant diversity. See http://www.bonap.org/diversity/diversity/diversity.html for some maps I made a few years ago. See the ...
by gjschmidt
Sat May 10, 2014 10:23 am
Forum: Post Here First - Introduce Yourself
Topic: Botanist from Michigan
Replies: 4
Views: 1919

Re: Botanist from Michigan

I have just acquired a Nikon Forestry PRO Laser Rangefinder/Hypsometer. http://www.forestry-suppliers.com/product_pages/Products.asp?mi=78521&title=Nikon%AE+Forestry+PRO+Laser+Rangefinder%2FHypsometer&itemnum=91140 A new world of forest stratum height is opened up to me. It has a choice of 1st hit a...
by gjschmidt
Wed Mar 26, 2014 8:46 am
Forum: Post Here First - Introduce Yourself
Topic: Botanist from Michigan
Replies: 4
Views: 1919

Re: Botanist from Michigan

Sadly to say, I have only an analog clinometer and a tape. Last year was the first year that I began using it regularly for the NRCS, and I am well aware of the potential error of finding the top correctly. I am not sure if my employer would buy a rangefinder in the near term. I was temped to use a ...

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