Whoops! I misspoke......>

Posted by TC on April 14, 2002 at 20:01:32:

In Reply to: No, extremely unlikely to be intergrades..... posted by Terry Cox on April 14, 2002 at 08:11:15:

I meant they are extremely unlikely to be hybrids with the prairie king, the last thing I read. Intergrades with gray rats are possible, if they enter s. IL., which it seems they do. I should have checked on that before I posted. A gray x black intergrade could possibly be brownish by mixing the colors...look at the greenish rats in N.C./S.C. by intergrading black x yellow.

: Black rats are very variable in color and pattern/lack of pattern. They are responsive to changes in environment. As a whole, black rats are a woodland species. I suspect your brown specimens are adapting to more of a grassy environment with less tree cover.

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: I meant they are extremely unlikely to be hybrids with the prairie king, the last thing I read. Intergrades with gray rats are possible, if they enter s. IL., which it seems they do. I should have checked on that before I posted. A gray x black intergrade could possibly be brownish by mixing the colors...look at the greenish rats in N.C./S.C. by intergrading black x yellow. : : : Black rats are very variable in color and pattern/lack of pattern. They are responsive to changes in environment. As a whole, black rats are a woodland species. I suspect your brown specimens are adapting to more of a grassy environment with less tree cover.

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