Originally posted by RifleBowPistol
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Originally posted by donpablo View PostSo, if/when you kill a wolf hybrid, would that be a defense that would stand up in court? Got me pondering hypotheticals now.
The long answer is that genetics and genomics have really blurred the definition of a species and scientists are currently grappling with that answer and it may change in the future, so who knows what might happen?
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Originally posted by El General View PostThe short answer is that hybrids are not wolves and no law is broken. The ESA protects species and subspecies as they are listed.
The long answer is that genetics and genomics have really blurred the definition of a species and scientists are currently grappling with that answer and it may change in the future, so who knows what might happen?
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Originally posted by donpablo View PostThey called them red wolves back in the day before genetic testing. Now that they've done genetic testing they found no distinct red wolf genes. The "red wolves" they tested only had the genes of coyotes and gray wolves. What people believed was a different or sub species of wolf turned out to be nothing more than a hybrid.
That being said, that coyote probably has some (or maybe a lot) of gray wolf in him.
Evaluating the Taxonomic Status of the Mexican Gray Wolf and the Red Wolf (2019)
Conclusions from that study:
"Available evidence suggests that the historical red wolves constituted a taxonomically valid species.
Extant red wolves are distinct from the extant gray wolves and coyotes.
Available evidence is compatible with the hypothesis that extant red wolves trace some of their ancestry to the historical red wolves.
Although additional genomic evidence from historical specimens could change this assessment, evidence available at present supports species status (Canis rufus) for the extant red wolf."
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Originally posted by donpablo View PostSo if you shot a "red wolf", the state would have to prove that it was a red wolf to make the violation stick. Since there are no distinct red wolf genes (only gray wolf and coyote) they wouldn't be able to do so. I've always wondered about that for hunters in the Carolinas. I imagine hunting yotes there would be a little nerve racking if you had to worry about shooting a protected canine.
But, I don't think that is something I would want to put in front of a jury based on people's fixation on charismatic megafauna and having to explain the science of mitochondrial DNA, genetics, and genomics to 12 people that can't think of a reason to get out of jury duty.
The poster mentioned above that there were no red wolf genes and that they were a hybrid of coyotes and grey wolves, but I don't know if that is true. I think that is a popular (and probably true) theory. There have only been a small number of red wolves tested and those are from a small population bottleneck.
The bottleneck came when they decided to trap the remaining red wolves in Texas and Louisiana to start a captive breeding program around 1980. They trapped 400 wolves and whittled that down to 14 "pure bred" red wolves. They did not have modern genome sequencing and mapping techniques to make the determination on whether those 14 red wolves were genetically pure red wolves or wolf/coyote hybrids.
If the species was down to 400 total members more or less, they readily interbred with coyotes, and they lived in an area with plenty of coyotes, a logical conclusion is that maybe all the red wolves left at that time had recent coyote ancestry because there weren't enough pure red wolves left?
Or, possibly there weren't ever pure red wolves? Or, perhaps red wolves were a fairly new species, like mule deer, and our current genetic technology doesn't allow us to distinguish between a hybrid and a new species?
The classic definition of the term species and what new genetics and genomics research is telling us is in conflict. Species - a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. By the classic definition of species, the coyote and grey wolf could be called the same species as they apparently interbreed.
Anyway, I find this all fascinating. At the end of the day, if I saw something that looked like a wolf in Texas, I'd be much more likely to film or photograph than shoot.
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Thank You
Originally posted by Phillip Fields View PostThere has been a more detailed study completed since then:
Evaluating the Taxonomic Status of the Mexican Gray Wolf and the Red Wolf (2019)
Conclusions from that study:
"Available evidence suggests that the historical red wolves constituted a taxonomically valid species.
Extant red wolves are distinct from the extant gray wolves and coyotes.
Available evidence is compatible with the hypothesis that extant red wolves trace some of their ancestry to the historical red wolves.
Although additional genomic evidence from historical specimens could change this assessment, evidence available at present supports species status (Canis rufus) for the extant red wolf."
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