[TN-Bird] Re: thoughts on Bill Pullman's BBS data graphs of Wood Duck and Black-throated Green Warbler
- From: "Reese, Carol" <jreese5@xxxxxxx>
- To: "Roger.Applegate@xxxxxx" <Roger.Applegate@xxxxxx>, "tn-bird@xxxxxxxxxxxxx" <tn-bird@xxxxxxxxxxxxx>, "dfvogt41@xxxxxxxxx" <dfvogt41@xxxxxxxxx>
- Date: Thu, 13 Oct 2011 03:18:54 +0000
Just anecdotal, but in Chester County's Luray Bottoms where I recently lived
for several years the "channel" had both plentiful wood ducks and otter. Also
kingfisher.
"There are some who can live without wild things and some who cannot."
- Aldo Leopold<http://www.goodreads.com/author/quotes/43828.Aldo_Leopold>
Carol Reese
Ornamental Horticulture Specialist -Western District
University of Tennessee Extension Service
605 Airways Blvd.
Jackson TN 38301
731 425 4767 email jreese5@xxxxxxx<mailto:jreese5@xxxxxxx>
From: tn-bird-bounce@xxxxxxxxxxxxx [mailto:tn-bird-bounce@xxxxxxxxxxxxx] On
Behalf Of Roger Applegate
Sent: Wednesday, October 12, 2011 10:17 PM
To: tn-bird@xxxxxxxxxxxxx; dfvogt41@xxxxxxxxx
Subject: [TN-Bird] Re: thoughts on Bill Pullman's BBS data graphs of Wood Duck
and Black-throated Green Warbler
Just a thought but in many areas of the US where river otters have remained
abundant, wood ducks have also remained abundant.
Roger D. Applegate
Small Game Coordinator
Tennessee Wildlife Resources Agency
Ellington Agricultural Center
PO Box 40747
Nashville, TN 37204
PH: 615/781-6616
FAX: 615/781-6654
Email: roger.applegate@xxxxxxxxxxx
UPS Address: 440 Hogan Road
Nashville, TN 37220
FedEx Address: 5107 Edmonson Pike
Nashville, TN 37211
>>> David Vogt 10/12/11 7:13 PM >>>
First, thanks to Bill for putting these graphs together. Very helpful to see
the TN data reflected in graph form. I'd like to speculate on causes for the
apparent declines indicated for Black-throated Greeen Warblers and for Wood
Ducks. The obvious explanation for the Black-throated Green Warbler decline is
the precipitous die-off of the hemlocks in east Tn due to the Hemlock Wooly
Adelgids.
As for Wood Duck numbers: I've noticed pretty a drastic decline of Wood Duck
numbers on the lake at Fall Creek Falls State Park in the last 4 years. This
decline coincides with the appearance of river otters on the lake. I wonder if
river otters are taking a toll on ducklings which would account for the numbers
reflected on BBS routes. It looks as if the decline in TN WODU numbers pretty
closely follow the dates of TN Wildlife Resourses Agencies project to
reintroduce river otters to the state.
Again, these are only theories and, I do not mean to suggest that river otter
should not have been reintroduced but thought I'd suggest this explanation.
Thanks again to Bill for his efforts,
David Vogt, Park Naturalist Fall Creek Falls State Park
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