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Originally Posted by waterninja
I noticed that the coyote pop. is down this year also. I wonder if increase of wolves have something to do with it? I saw more wolves this hunting season then coyotes, and a lot of wolf sign everywhere.
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An increase in wolves might affect the coyote population. Wolves love to eat coyotes. And coyotes can't compete with the larger predator for food so there are less coyotes.
And cougars like eating coyotes too. This fall, close to Edmonton, I found a coyote killed by a cat that was plucked and his drumsticks were wedged up on a large fallen tree, about 6 feet off of the ground. Coyote numbers are down a little in that valley. The landowner has seen the cat a couple times.
Coyotes are one many animals that can manipulate their gestation period and litter size too. In a good habitat with lots of food, low threat and stress, a coyote will have bigger litters. Low rodent numbers maybe affected coyote litter sizes. Just like the lynx populations spike a year after the rabbit cycle peaks.
Also, coyotes have the ability of delayed implantation. The coyote can delay the fertilized egg from developing for up to a year. Several animals have that ability.
This is a well written short article on delayed implantation. Talks about fisher, marten, weasel and even the black bear. Fascinating stuff actually. Helps a guy understand how it all works.
https://www.nwf.org/News-and-Magazin...n-Waiting.aspx
It could be that all these bait sites are making the coyotes lazy. Typically they have to be on the prowl everyday. Knowing there is food regularly might change their habits. They are highly adaptable right?