Manitoba Peregrines > Radisson Peregrines
Radisson - 2010 / Ivy & Princess
The Peregrine Chick:
1653 hrs - its raining downtown ... no one visible right now in the cam-zone. Ivy was on the sign until just before the rain started, but can't find him now.
The Peregrine Chick:
--- Quote from: Kinderchick on March 30, 2010, 16:12 ---This may sound like a silly question, TPC, but if mother mates with son, does this adversely affect the Peregrine gene pool. ???
--- End quote ---
Depends on the genetic health of the individuals. If they don't have problematic genes, then no, they are just reinforcing good genes. If they do, it can. They, like pretty much every other species, does try to avoid it however because its does narrow the pool somewhat. The current theory related to cheetahs is that they became inbred (they are almost genetically identical) when a natural disaster of some sort (or sorts) about 10,000 years ago (end of the last ice age I believe) reduced the total world population down to less than 7 individual cheetahs, possibly even just one mom and her cubs. So the species survived through brother-sister, child-parent pairings. They survived but their fertility has been affected. Given the number of peregrines out there, and the frequency with which child-parent or brother-sister pairings occur in conjunction with high first year mortality, the chances of severely damaging the overall gene pool is slim. Damaging our little gene pool if an offspring were to be a dominant breeder would depend on what was in the bird's and his/her mate's genetic make-up.
When Trey and Madame nested together, they had fewer young, but they were perfectly healthy and it was only a couple of years. It may be one of the reasons Trey chose Princess over Madame in 2004, "knew" (in the hardwired instinctive sense) that his genes would do better with an unrelated female.
And for those of you who don't know or don't remember all the minutae of Ivy's background ... he tried to nest (unsuccessfully) with his sister Lucy back in 2007. 2005 - Ivy and Lucy hatched at the Radisson - westside nestbox!
2006 - Ivy went a roving, Lucy returned and held the West Winnipeg territory with a Brandon cousin.
2007 - Ivy reappears and the Brandon cousin did not. Ivy & Lucy had three eggs, none of which hatch.
2008 - Lucy did not return but Ivy did, and Jules appeared. They didn't nest but they did defend the territory.
2009 - Ivy and Jules tried their hand (or talon) at nesting with pretty much the same results as in 2007. Not unusual for young, first-time nesters.
2010 - Jules in West Winnipeg (last we saw her) and Ivy hanging out at the Radisson annoying (so far) his mother, Princess.
Kinderchick:
This may sound like a silly question, TPC, but if mother mates with son, does this adversely affect the Peregrine gene pool. ???
The Peregrine Chick:
--- Quote from: Pam on March 30, 2010, 15:58 ---Ivy (I assume) on the i in Radisson.....seems to be hanging on...
--- End quote ---
Actually, he sucks at hanging on ... I've never seen a bird get blown off the sign as often as he does, not even the chicks!! Its hilarious, makes me think that Princess will have a hard time taking him seriously as a mate if he can't stay on the tops of the letters. Trey always manages it - but then his preferred spot was on the slash under the R, maybe the "old man" knows that one shouldn't sit on the rounded tops when there is a breeze and that's why he sits on the slash. Age & cunning beats youth & beauty every time!
The Peregrine Chick:
Don't know how long Princess will wait I'm afraid. If she knows Trey isn't coming back, she might not. She might already be willing to let Ivy court her - he did take half his lunch to someone earlier today.
Don't even know whether or not she will mate with Ivy who is her son. Its happened before, Madame and Trey were paired together for a couple of years before Princess arrived and those chicks did fine. One of them, Sherpa, looked to be "Ivy" in fact - he was back in the West Winnipeg territory for two years before he had an accident & collided with a fence.
Don't know if Jules will force Princess out of the territory if she wants to stay with Ivy. Jules is pretty quiet, but she and Ivy did escort another female (I think) out of the West Winnipeg territory last year and she was pretty firm about her request for withdrawal!
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