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http://animals.io9.com/why-is-canadas-wolf-population-splitting-into-two-group-1589448368 Why Is Canada's Wolf Population Splitting Into Two Groups?Chester Starr of the Heiltsuk First Nation knows that the wolves of British Columbia come in two varieties: timber wolves on the mainland and coastal wolves on the islands. Genetic research has finally confirmed what Starr's tribe has always known.It was Starr's "traditional ecological knowledge" that initially inspired Polish Academy of Sciences researcher Astrid V. Stronen and University of Calgary scientist Erin Navid to take a closer look at British Columbia's wolves. They wanted to see whether the Heiltsuk Nation's folk knowledge was reflected in the wolves' genes. The puzzling thing is that wolves are capable of moving over vast geographical distances. They can easily travel more than 70 kilometers per day without even breaking a sweat. They can cross valleys and mountains, and can swim across rivers and even small channels of sea. Yet Stronen, Navid, and colleagues found stark genetic distinctions among wolf groups in an area just 2000 square kilometers. Why are there such clear genetic groupings among wolf groups who ought to be able to intermix?According to the researchers, it's all about what they eat. Despite the tiny distances between the mainland and the islands – sometimes less than 1500 meters of water – there are tremendous ecological distinctions. The mainland is rugged and is home to tons of wildlife, while the islands are less mountainous and host fewer species. On the mainland, grizzly bears compete with wolves, but on islands, wolves are the top dogs. On the mainland, wolves can feast on moose and mountain goats. On the islands, wolves rely on marine resources, like fish, for 85% of their diets.Despite their ability to travel great distances, some animals' behavior becomes so specialized, thanks to the environment into which they were born, that they wind up sticking close to home.It's an important reminder that nature and nurture, genetics and environment, are more tightly linked than it might seem at first. Chimpanzees and bonobos only diverged some three million years ago (our species last shared an ancestor with them around six million years ago), but today couldn't be more different. As with the wolves of British Columbia, researchers think that the remarkable differences in chimpanzee and bonobo culture originate, at least in part, in their diets. Chimpanzees evolved in forests with fewer dietary resources than bonobos did. Fruits are a bit harder to come by for chimps, which may explain why they evolved to be more competitive. Bonobos, on the other hand, evolved in a land of plenty. The reduced competition over food may have led the so-called "hippie ape" towards greater tolerance and cooperation. Even small differences in diet and in foraging and hunting styles can have massive implications for the evolution of a group of animals. The distinction between coastal and mainland wolves, in some ways, mirrors the distinction between polar and grizzly bears. It is thought that the two bear species diverged because polar bears evolved in regions where they relied on the sea to provide their food, while grizzly bears remained skilled at hunting on dry land. Like polar bears, those wolves who found their way to the islands have simply become skilled at fishing, causing them to remain in marine landscapes. Will the wolves of British Columbia follow in the footsteps of the bears, splitting into two different species? Only time will tell.It doesn't matter if an animal is physically capable of dispersing over large distances. Instead, what matters is whether they can thrive in environments distinct from the ones in which they learned to survive. Even one neighborhood over, a wolf that was a master fisherman might starve if faced with the task of taking down a massive moose. Read the whole open-access paper at BMC Ecology.Photos: Chris Darimont; Guillaume Mazille. Used with permission. Map via Stronen et al. 111 44_Reply
Quote from: WAcoyotehunter on June 26, 2014, 09:34:42 AMhttp://animals.io9.com/why-is-canadas-wolf-population-splitting-into-two-group-1589448368 Why Is Canada's Wolf Population Splitting Into Two Groups?Chester Starr of the Heiltsuk First Nation knows that the wolves of British Columbia come in two varieties: timber wolves on the mainland and coastal wolves on the islands. Genetic research has finally confirmed what Starr's tribe has always known.It was Starr's "traditional ecological knowledge" that initially inspired Polish Academy of Sciences researcher Astrid V. Stronen and University of Calgary scientist Erin Navid to take a closer look at British Columbia's wolves. They wanted to see whether the Heiltsuk Nation's folk knowledge was reflected in the wolves' genes. The puzzling thing is that wolves are capable of moving over vast geographical distances. They can easily travel more than 70 kilometers per day without even breaking a sweat. They can cross valleys and mountains, and can swim across rivers and even small channels of sea. Yet Stronen, Navid, and colleagues found stark genetic distinctions among wolf groups in an area just 2000 square kilometers. Why are there such clear genetic groupings among wolf groups who ought to be able to intermix?According to the researchers, it's all about what they eat. Despite the tiny distances between the mainland and the islands – sometimes less than 1500 meters of water – there are tremendous ecological distinctions. The mainland is rugged and is home to tons of wildlife, while the islands are less mountainous and host fewer species. On the mainland, grizzly bears compete with wolves, but on islands, wolves are the top dogs. On the mainland, wolves can feast on moose and mountain goats. On the islands, wolves rely on marine resources, like fish, for 85% of their diets.Despite their ability to travel great distances, some animals' behavior becomes so specialized, thanks to the environment into which they were born, that they wind up sticking close to home.It's an important reminder that nature and nurture, genetics and environment, are more tightly linked than it might seem at first. Chimpanzees and bonobos only diverged some three million years ago (our species last shared an ancestor with them around six million years ago), but today couldn't be more different. As with the wolves of British Columbia, researchers think that the remarkable differences in chimpanzee and bonobo culture originate, at least in part, in their diets. Chimpanzees evolved in forests with fewer dietary resources than bonobos did. Fruits are a bit harder to come by for chimps, which may explain why they evolved to be more competitive. Bonobos, on the other hand, evolved in a land of plenty. The reduced competition over food may have led the so-called "hippie ape" towards greater tolerance and cooperation. Even small differences in diet and in foraging and hunting styles can have massive implications for the evolution of a group of animals. The distinction between coastal and mainland wolves, in some ways, mirrors the distinction between polar and grizzly bears. It is thought that the two bear species diverged because polar bears evolved in regions where they relied on the sea to provide their food, while grizzly bears remained skilled at hunting on dry land. Like polar bears, those wolves who found their way to the islands have simply become skilled at fishing, causing them to remain in marine landscapes. Will the wolves of British Columbia follow in the footsteps of the bears, splitting into two different species? Only time will tell.It doesn't matter if an animal is physically capable of dispersing over large distances. Instead, what matters is whether they can thrive in environments distinct from the ones in which they learned to survive. Even one neighborhood over, a wolf that was a master fisherman might starve if faced with the task of taking down a massive moose. Read the whole open-access paper at BMC Ecology.Photos: Chris Darimont; Guillaume Mazille. Used with permission. Map via Stronen et al. 111 44_ReplyIf the coastal wolves are the ones I'm thinking of there was a documentary on TV about them back in the late 90's I believe. I want to say they claimed they had shorter coats and tended to eat a lot of salmon when the runs came in. They showed them eating the fish, they generally went for the heads and left the rest and they were trying to find out why that was all they ate. It was crazy, they showed a bunch of headless fish laying around rotting. Side note, the food thing is popular with wolf people. I believe one of the reasons they used to justify bringing wolves in from Alberta rather than wolves from the lake states was they hunted the game we have around here. Lake states wolves have generally never seen an elk and the bio's involved weren't sure they would know what to do with one. No joke.
Quote from: AspenBud on June 26, 2014, 09:56:42 AMQuote from: WAcoyotehunter on June 26, 2014, 09:34:42 AMhttp://animals.io9.com/why-is-canadas-wolf-population-splitting-into-two-group-1589448368 Why Is Canada's Wolf Population Splitting Into Two Groups?Chester Starr of the Heiltsuk First Nation knows that the wolves of British Columbia come in two varieties: timber wolves on the mainland and coastal wolves on the islands. Genetic research has finally confirmed what Starr's tribe has always known.It was Starr's "traditional ecological knowledge" that initially inspired Polish Academy of Sciences researcher Astrid V. Stronen and University of Calgary scientist Erin Navid to take a closer look at British Columbia's wolves. They wanted to see whether the Heiltsuk Nation's folk knowledge was reflected in the wolves' genes. The puzzling thing is that wolves are capable of moving over vast geographical distances. They can easily travel more than 70 kilometers per day without even breaking a sweat. They can cross valleys and mountains, and can swim across rivers and even small channels of sea. Yet Stronen, Navid, and colleagues found stark genetic distinctions among wolf groups in an area just 2000 square kilometers. Why are there such clear genetic groupings among wolf groups who ought to be able to intermix?According to the researchers, it's all about what they eat. Despite the tiny distances between the mainland and the islands – sometimes less than 1500 meters of water – there are tremendous ecological distinctions. The mainland is rugged and is home to tons of wildlife, while the islands are less mountainous and host fewer species. On the mainland, grizzly bears compete with wolves, but on islands, wolves are the top dogs. On the mainland, wolves can feast on moose and mountain goats. On the islands, wolves rely on marine resources, like fish, for 85% of their diets.Despite their ability to travel great distances, some animals' behavior becomes so specialized, thanks to the environment into which they were born, that they wind up sticking close to home.It's an important reminder that nature and nurture, genetics and environment, are more tightly linked than it might seem at first. Chimpanzees and bonobos only diverged some three million years ago (our species last shared an ancestor with them around six million years ago), but today couldn't be more different. As with the wolves of British Columbia, researchers think that the remarkable differences in chimpanzee and bonobo culture originate, at least in part, in their diets. Chimpanzees evolved in forests with fewer dietary resources than bonobos did. Fruits are a bit harder to come by for chimps, which may explain why they evolved to be more competitive. Bonobos, on the other hand, evolved in a land of plenty. The reduced competition over food may have led the so-called "hippie ape" towards greater tolerance and cooperation. Even small differences in diet and in foraging and hunting styles can have massive implications for the evolution of a group of animals. The distinction between coastal and mainland wolves, in some ways, mirrors the distinction between polar and grizzly bears. It is thought that the two bear species diverged because polar bears evolved in regions where they relied on the sea to provide their food, while grizzly bears remained skilled at hunting on dry land. Like polar bears, those wolves who found their way to the islands have simply become skilled at fishing, causing them to remain in marine landscapes. Will the wolves of British Columbia follow in the footsteps of the bears, splitting into two different species? Only time will tell.It doesn't matter if an animal is physically capable of dispersing over large distances. Instead, what matters is whether they can thrive in environments distinct from the ones in which they learned to survive. Even one neighborhood over, a wolf that was a master fisherman might starve if faced with the task of taking down a massive moose. Read the whole open-access paper at BMC Ecology.Photos: Chris Darimont; Guillaume Mazille. Used with permission. Map via Stronen et al. 111 44_ReplyIf the coastal wolves are the ones I'm thinking of there was a documentary on TV about them back in the late 90's I believe. I want to say they claimed they had shorter coats and tended to eat a lot of salmon when the runs came in. They showed them eating the fish, they generally went for the heads and left the rest and they were trying to find out why that was all they ate. It was crazy, they showed a bunch of headless fish laying around rotting. Side note, the food thing is popular with wolf people. I believe one of the reasons they used to justify bringing wolves in from Alberta rather than wolves from the lake states was they hunted the game we have around here. Lake states wolves have generally never seen an elk and the bio's involved weren't sure they would know what to do with one. No joke."Despite their ability to travel great distances, some animals' behavior becomes so specialized, thanks to the environment into which they were born, that they wind up sticking close to home."Mech said that translocated wolves normally either return to the same area or commit similar depredations in their new location--All evidence points to the fact that wolves Do Not Migrate, but instead stay in the areas in which they were born.Remember the large fenced areas that the USFWS built to keep wolves in when they brought the wolves from Alberta? The USFWS knew from past experiences of releasing wolves, that the wolves would just return to their home land if they weren't fed and held where they were released for several months. They called this soft wolf releases. A Canadian wildlife agent said we would be surprised at how many collared wolves came back to Alberta, he said we would also be shocked at how many more wolves the USFWS bought. In 2009 when WDFW were caught releasing wolves in the Methow Valley, the first thing those wolves did was kill a cow and a calf. That summer folks had more wolf problems then we have ever had. The wolves were seen in the Twisp city limits, killed chickens, followed some lady down the county road, trotted through peoples yards in broad daylight. And still WDFW went with their "the wolves naturally migrated" to the Methow Valeey. By fall the wolves had disappeared. The “Naturally Migrating” GI Wolveshttp://tomremington.com/2014/06/09/the-naturally-migrating-gi-wolves/ If WDFW and environmentalists say the wolves "Naturally Migrated" over and over again, it still does not make it true.
"Despite their ability to travel great distances, some animals' behavior becomes so specialized, thanks to the environment into which they were born, that they wind up sticking close to home."Mech said that translocated wolves normally either return to the same area or commit similar depredations in their new location--All evidence points to the fact that wolves Do Not Migrate, but instead stay in the areas in which they were born.Remember the large fenced areas that the USFWS built to keep wolves in when they brought the wolves from Alberta? The USFWS knew from past experiences of releasing wolves, that the wolves would just return to their home land if they weren't fed and held where they were released for several months. They called this soft wolf releases. A Canadian wildlife agent said we would be surprised at how many collared wolves came back to Alberta, he said we would also be shocked at how many more wolves the USFWS bought.
All evidence points to the fact that wolves Do Not Migrate, but instead stay in the areas in which they were born.
Quote from: wolfbait on June 26, 2014, 04:00:21 PM"Despite their ability to travel great distances, some animals' behavior becomes so specialized, thanks to the environment into which they were born, that they wind up sticking close to home."Mech said that translocated wolves normally either return to the same area or commit similar depredations in their new location--All evidence points to the fact that wolves Do Not Migrate, but instead stay in the areas in which they were born.Remember the large fenced areas that the USFWS built to keep wolves in when they brought the wolves from Alberta? The USFWS knew from past experiences of releasing wolves, that the wolves would just return to their home land if they weren't fed and held where they were released for several months. They called this soft wolf releases. A Canadian wildlife agent said we would be surprised at how many collared wolves came back to Alberta, he said we would also be shocked at how many more wolves the USFWS bought.MigrationThis species is not migratory but may move seasonally following migrating ungulates within its territory. Gray Wolves also disperse widely. Males in northwestern Montana can move an average of 113 km (70 miles) from their natal territory, and females 77 km (48 miles), before establishing a new territory or joining an existing pack (Boyd and Pletscher 1999). Dispersal peaks twice per year; first in January/February and second, in May/June (Boyd and Pletscher 1999). Some Gray Wolves are known to have dispersed up to 805 km (500 miles). Dispersal has been documented from Canada, Idaho and Wyoming to Montana. Montana Gray Wolves are also known to have dispersed to Canada, Idaho, and Wyoming.http://fieldguide.mt.gov/detail_AMAJA01030.aspxFrom Merriam Webster...mi·gra·to·ryadjective \ˈmī-grə-ˌtȯr-ē\: moving from one place to another at different times of the year : migrating regularlyAlso from Merriam Webster...dis·perseverb \di-ˈspərs\: to go or move in different directions : to spread apartSo yes, in essence Mr. Remington, the fine gentleman who has spent his entire life in Maine and Florida but somehow becomes an expert on Washington wolves, is right. They don't migrate. But they do disperse.
Quote from: AspenBud on June 26, 2014, 04:51:25 PMQuote from: wolfbait on June 26, 2014, 04:00:21 PM"Despite their ability to travel great distances, some animals' behavior becomes so specialized, thanks to the environment into which they were born, that they wind up sticking close to home."Mech said that translocated wolves normally either return to the same area or commit similar depredations in their new location--All evidence points to the fact that wolves Do Not Migrate, but instead stay in the areas in which they were born.Remember the large fenced areas that the USFWS built to keep wolves in when they brought the wolves from Alberta? The USFWS knew from past experiences of releasing wolves, that the wolves would just return to their home land if they weren't fed and held where they were released for several months. They called this soft wolf releases. A Canadian wildlife agent said we would be surprised at how many collared wolves came back to Alberta, he said we would also be shocked at how many more wolves the USFWS bought.MigrationThis species is not migratory but may move seasonally following migrating ungulates within its territory. Gray Wolves also disperse widely. Males in northwestern Montana can move an average of 113 km (70 miles) from their natal territory, and females 77 km (48 miles), before establishing a new territory or joining an existing pack (Boyd and Pletscher 1999). Dispersal peaks twice per year; first in January/February and second, in May/June (Boyd and Pletscher 1999). Some Gray Wolves are known to have dispersed up to 805 km (500 miles). Dispersal has been documented from Canada, Idaho and Wyoming to Montana. Montana Gray Wolves are also known to have dispersed to Canada, Idaho, and Wyoming.http://fieldguide.mt.gov/detail_AMAJA01030.aspxFrom Merriam Webster...mi·gra·to·ryadjective \ˈmī-grə-ˌtȯr-ē\: moving from one place to another at different times of the year : migrating regularlyAlso from Merriam Webster...dis·perseverb \di-ˈspərs\: to go or move in different directions : to spread apartSo yes, in essence Mr. Remington, the fine gentleman who has spent his entire life in Maine and Florida but somehow becomes an expert on Washington wolves, is right. They don't migrate. But they do disperse. Wolves eat their way outward, in other wards as wolves disperse they leave a trail of destruction in wildlife and livestock. Folks saw this in Idaho after the USFWS dumped wolves in different areas, Ed Bang's said the reason behind the releases was because wolves were not dispersing as rapidly as they had hoped. Talking to those in ID, MT and Wyoming they will tell you that the USFWS did the same thing that WDFW has done and is still doing throughout WA.For WDFW to claim that the wolves picked up after 70-80 years and dispersed or migrated to WA was very foolish on their part. If both agencies would have said the wolves were dispersing from Idaho it would have made more sense. But I guess that doesn't matter as long as those who don't have to put up with the wolves, are fooled. (“This is a natural colonization,” said Fitkin. “The wolves are naturally immigrating.” )Knowing what we know today, I'm sure it won't be too long before WA is full of wolves.U.S. Fish and Wildlife Service Northern Rocky Mountain Recovery Program Update2008Until 2008, no wild wolves had been confirmed west of the DPS boundary in Washington or Oregon. However, in July 2008, a wolf pack (2 adults and 6 pups) was discovered near Twisp, WA (just east of the North Cascades and west of the DPS boundary). Genetic testing showed these wolves did not originate from the NRM DPS; instead they apparently dispersed southward from the wolf population in southcentral British Columbia. Both adults were radio-collared and the pack is being monitored via radio telemetry by Washington Department of Fish and Wildlife. If this pack persists it will remain separated and distinct from the NRM DPS by the large expanse of unsuitable wolf habitat in eastern WA and OR. http://www.fws.gov/mountain-prairie/species/mammals/wolf/annualrpt08/FINAL_2008_USFWS_Recovery_Program_Update_3-17-09.pdfDNA samples confirm gray wolves are back in Methow Valley By Joyce CampbellMethow Valley NewsJuly 24, 2008DNA tests showed that the wolves originated from a population in the northern British Columbia and Alberta provinces of Canada.“This is a natural colonization,” said Fitkin. “The wolves are naturally immigrating." http://www.conservationnw.org/news/pressroom/press-clips/dna-samples-confirm-gray-wolves-are-back-in-methow-valley*Update* – June 13, 2014:“DNA obtained from Lookout Pack wolves has shown they are descendents of wolves living in coastal British Columbia”, who lived separately from inland wolves for many generations, “Conservation Northwest” said in a press release. http://methowvalleynews.com/2013/06/25/will-federal-delisting-impact-states-wolves/