[CT Birds] mockingbird follow-up
ashippee at snet.net
Wed Mar 28 20:44:19 EDT 2012
Another possible factor?
Where we are, in Whitneyville, Hamden, I've noticed more Mocking Birds in the more densely built areas of houses than in the near-by scrubbier places, and Queens, NY, including Queens College, is full of them.
So, are we missing counting MB populations in more built up areas?
On Mar 28, 2012, at 7:22 PM, Dennis Varza <dennisvz at optonline.net> wrote:
> Here is a possible habitat change that would be real tough to quantify.
> With increased subdivisions lots become smaller and more heavily cultivated. By this I mean fewer neglected brushy patches.
> Another interesting trend I noticed as houses become more packed the trees around them become smaller.
> Big oaks and maples give way to birch, cherry and dogwood trees.
> Dennis Varza
> On Mar 28, 2012, at 6:24 PM, Chris Elphick wrote:
>> Eric proposes a couple of good alternative explanations for changes in
>> mockingbird numbers. Predator-prey population cycling typically occurs when
>> there is a tightly-linked dependency among one (or a very few) predator species
>> and one (or a very few) prey species. In contrast, mockingbirds have many
>> potential predators and most things that
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