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jean_thie
Cartographer


Reged: 12/06/06
Posts: 94
Loc: Ottawa, Canada
Re: Canada's Beaver Capital in 1945???
      10/03/07 12:53 PM

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Dear MSPelto,

Thanks for your comments. I appreciate them particularly coming from a glaciologist who uses GE in the communication of his research projects.

The landscape position of this unusual concentration of beavers provides an excellent clue for the further exploration of beaver habitat. In general one could say that the lower slopes of plateau like landscape features where surface drainage and possibly aquifers provide for a steady (relative slow) release of (surface and ground) water provide the best potential habitat for beaver (colonies- communities). I have since tried this concept and found in the meantime even more impressive beaver concentrations.

It i also interesting to see that the low resolution satellite imagery is superior (to the high resolution) for the rapid survey and characterization of landscape ecosystems. The high resolution imagery is of course needed for confirmation and measurement.

This particular post deals with past history of this beaver community . The oldest aerial photography available for this area is from 1945, flown on the 21 August at about 12'500 ft above sea level.
The interesting part is that in 1945 very few beaver dams are visible on the black and white aerial photo taken. I have provided two of the photos as overlays in the attached KMZ which allows anyone to do a comparison.



For more information:

http://www.geostrategis.com/p_beavers-pasquia2.htm

http://www.geostrategis.com/p_beavers-pasquia.htm

--------------------
Jean Thie
Executive Director, Canadian Institute of Geomatics
www.geostrategis.com
Google Earth - An Exceptional Ecosystem Science Tool!
Monitor Permafrost Melting with Google Earth
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Find the longest beaver dam in the World with Google Earth!

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Entire topic
Subject Posted by Posted on
* Beavers, Beavers, Everywhere! jean_thie 03/24/07 06:19 PM
. * * Re: Idaho watershed restoration? begreen   10/23/07 09:53 PM
. * * Re: Idaho watershed restoration? jean_thie   10/27/07 10:10 AM
. * * Re: Idaho watershed restoration? begreen   11/04/07 12:36 PM
. * * Re: Idaho watershed restoration? begreen   11/04/07 01:14 AM
. * * Re: Canada's Beaver Capital: jean_thie   09/18/07 08:43 PM
. * * Re: Canada's Beaver Capital: jean_thie   09/19/07 05:50 AM
. * * Re: Canada's Beaver Capital: mspelto   09/21/07 07:30 AM
. * * Re: Canada's Beaver Capital in 1945??? jean_thie   10/03/07 12:53 PM
. * * Re: Canada's Beaver Capital: Rambler24   09/19/07 02:23 AM
. * * World's biggest beaver dam?? jean_thie   04/07/07 07:58 AM
. * * Re: Beavers, Beavers, Everywhere! gideonshorn   04/04/07 05:15 PM
. * * Re: Beavers, Beavers, Everywhere! Delta102   04/01/07 09:43 PM
. * * Beavers, Beavers, Everywhere but in So Cal ? Delta102   03/29/07 12:17 PM
. * * Southern California Beavers in Temecula Creek ? *DELETED* jean_thie   03/30/07 10:27 AM
. * * Re: Southern California Beavers in Temecula Creek ? Froggmann   12/23/07 09:03 PM
. * * Re: Southern California Beavers in Temecula Creek ? jean_thie   04/11/08 02:09 PM
. * * Re: Southern California Beavers in Temecula Creek ? Delta102   03/30/07 12:46 PM
. * * Re: Southern California Beavers in Temecula Creek ? mspelto   04/01/07 05:30 AM
. * * Re: Southern California Beavers in Temecula Creek ? Delta102   04/01/07 09:26 PM
. * * Re: Beavers, Beavers, Everywhere! LuciaMModerator   03/29/07 02:23 AM
. * * Beaver reintroduction - Hungary syzygy   03/29/07 12:06 AM
. * * Re: Water management by beavers Delta102   03/27/07 06:50 AM
. * * beaver pond cross section and beaver range in N.A jean_thie   03/27/07 05:44 PM
. * * Beavers in Montana Delta102   03/27/07 06:20 PM
. * * Re: Beavers in Montana jean_thie   03/27/07 07:13 PM
. * * Re: Beavers in Montana Delta102   03/27/07 07:17 PM
. * * Re: Beavers in Montana jean_thie   03/28/07 08:29 AM
. * * Re: Water management by beavers heamit   03/27/07 05:57 PM
. * * Re: Exploring the Northern limit of beavers jean_thie   03/27/07 09:15 PM
. * * Exploring Northern limit of beavers- Sub -arctic jean_thie   04/04/07 06:30 AM
. * * Re: Water management by beavers jean_thie   03/27/07 06:37 PM
. * * Re: Water management by beavers mspelto   03/25/07 05:21 AM
. * * Beavers on Carp Ridge near Ottawa, Canada jean_thie   03/25/07 11:23 AM
. * * Gatineau Park Beavers, Highest Concentration in Canada? jean_thie   03/27/07 06:26 AM


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