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Tom,
Not likely. Lake Champlain is facing similar issues. Non-native is an interesting concept. At point in history do we decide is the demarcation point between native and non? Playing the devil's advocate, brown trout are non-native. Apple trees are non-native. Do we eradicate apple trees from the landscape and brown trout from our lakes and streams? I definitely do not know the answer to this one, and I spend an awful amount of time thinking about it when I am fishing and hunting. Geez, most of us are not native. Definitely one of greatest challenges of this generation. Our progress has caught us looking ahead. -- James Ehlers Outdoors Magazine www.outdoorsmagazine.net "Tom Littleton" wrote in message ... this is an interesting piece......the Great Lakes have undergone considerable biological shuffling since man started his imprint upon things. One we anglers tend to overlook is the introduction of Pacific Salmonids to the picture. Way more fun to catch than, say, Zebra mussels, but an invasive species nonetheless. Now, the radical way to return Ontario or the other Great Lakes to their "original" status is to eliminate human habitation along the shoreline to a huge degree, end all motor transportation across these lakes, physically remove all non-native species and hope for the best. Anyone out there think this will happen soon?? Tom |
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Jim E asks:
At point in history do we decide is the demarcation point between native and non? exactly my point Tom |
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![]() Tom Littleton wrote: Jim E asks: At point in history do we decide is the demarcation point between native and non? exactly my point Tom The preservation of native species is something that is important to me as is the preservation of natural environments. The definitions of what constitutes a native species and natural environments are basic foundations for preservation. I've given this quite a bit of thought and it seems to me that both definitions need to be based on the absence of man's influence. There seems to be a problem with some people on ROFF accepting these definitions. For native, I think I'll start using indigenous hoping that will be more understood. But for a "natural" environment, I don't have another word to substitute. The reason I bring this up is that it's fruitless to discuss an issue if there aren't commonly held definitions. Without common definitions, the essence of the discussion becomes lost. Here's a challenge to you guys that have a problem with the definitions of native and natural being based on mans' intervention: Come up with a meaningful definition for either that doesn't specify an arbitrary, specific time. I don't think you can do it without your definition logically leading to accepting genetically engineered animals as native or a nuclear wasteland as natural. Maybe for some of you a genetically engineered animal could be native and a nuclear wasteland is a natural environment. If so, we're on different planets when we're having discussions using these words. Willi Willi |
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On Sun, 30 Nov 2003 13:11:07 -0700, Willi wrote:
Tom Littleton wrote: Jim E asks: At point in history do we decide is the demarcation point between native and non? exactly my point Tom The preservation of native species is something that is important to me as is the preservation of natural environments. The definitions of what constitutes a native species and natural environments are basic foundations for preservation. I've given this quite a bit of thought and it seems to me that both definitions need to be based on the absence of man's influence. There seems to be a problem with some people on ROFF accepting these definitions. For native, I think I'll start using indigenous hoping that will be more understood. But for a "natural" environment, I don't have another word to substitute. The reason I bring this up is that it's fruitless to discuss an issue if there aren't commonly held definitions. Without common definitions, the essence of the discussion becomes lost. Here's a challenge to you guys that have a problem with the definitions of native and natural being based on mans' intervention: Come up with a meaningful definition for either that doesn't specify an arbitrary, specific time. I don't think you can do it without your definition logically leading to accepting genetically engineered animals as native or a nuclear wasteland as natural. Maybe for some of you a genetically engineered animal could be native and a nuclear wasteland is a natural environment. If so, we're on different planets when we're having discussions using these words. Willi Many species are invaders without having been introduced by humans. Indigenous can simply mean (in reference to humans) the original inhabitants or those who have been there the longest, considering that the original inhabitants may be long gone. I don't think it is a term that works well in the non-human world. Humans are part of the natural world and they have been shaping it even at the prehistoric level. The indigenous populations of North America were shaping the flora and fauna well before Columbus showed up. Perhaps some brought animals (dogs?) across Beringia -- we don't know. We can't just look at human intervention as a recent, Western thing, though obviously the rate of extinction and introduction has greatly accelerated with the spread of Western industrialized society. But it is just that, an acceleration, not a beginning. For the sake of conservation, we can adopted the label of "native" -- meaning not introduced by humans. It was there before human arrival and intervention (or more popularly, before the coming of the white man). We can choose to focus on the time span after the start of the Industrial Revolution as before that period, human intervention happened at a much slower rate. For example, the development of corn from its tiny, original wild state to the large, domesticated cob today, took the indigenous peoples of North America centuries to accomplish. Modern genetic manipulation today could achieve the same thing over a decade or so. That said, it is a worthwhile thing to preserve native species just from the diversity aspect alone. While some would try to place value on some native species and not others (favouring brookies over an endangered sucker), we should not do so. It is ironic to read the whining that recently introduced species are harming other introduced species that we happen to like. Peter turn mailhot into hotmail to reply Visit The Streamer Page at http://www.mountaincable.net/~pcharl...ers/index.html |
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![]() Peter Charles wrote: Many species are invaders without having been introduced by humans. Indigenous can simply mean (in reference to humans) the original inhabitants or those who have been there the longest, considering that the original inhabitants may be long gone. I don't think it is a term that works well in the non-human world. Humans are part of the natural world and they have been shaping it even at the prehistoric level. The indigenous populations of North America were shaping the flora and fauna well before Columbus showed up. Perhaps some brought animals (dogs?) across Beringia -- we don't know. We can't just look at human intervention as a recent, Western thing, though obviously the rate of extinction and introduction has greatly accelerated with the spread of Western industrialized society. But it is just that, an acceleration, not a beginning. But that acceleration is overwhelming. I also think it is a recent thing. The amount of time that man has made any significant impact on the world's environment is just a mote in god's eye compared to the evolutionary process as a whole. However, in that short period of time, man has had more impact on the world's environment than any other species throughout time. For the sake of conservation, we can adopted the label of "native" -- meaning not introduced by humans. It was there before human arrival and intervention (or more popularly, before the coming of the white man). We can choose to focus on the time span after the start of the Industrial Revolution as before that period, human intervention happened at a much slower rate. For example, the development of corn from its tiny, original wild state to the large, domesticated cob today, took the indigenous peoples of North America centuries to accomplish. Modern genetic manipulation today could achieve the same thing over a decade or so. Or much less. That said, it is a worthwhile thing to preserve native species just from the diversity aspect alone. While some would try to place value on some native species and not others (favouring brookies over an endangered sucker), we should not do so. We're in agreement on that. It is ironic to read the whining that recently introduced species are harming other introduced species that we happen to like. Yeah and that "liking" changes over time. Carp were widely stocked in the States in the late 19th and early 20th centuries. And now?? Tough to turn back the clock. Willi |
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![]() "Willi" wrote in message ... ...Here's a challenge to you guys that have a problem with the definitions of native and natural being based on mans' intervention: Come up with a meaningful definition for either that doesn't specify an arbitrary, specific time. I don't think you can do it without your definition logically leading to accepting genetically engineered animals as native or a nuclear wasteland as natural. Maybe for some of you a genetically engineered animal could be native and a nuclear wasteland is a natural environment. If so, we're on different planets when we're having discussions using these words. Definitions are beautiful and terrible things. A definition of anything as "native" or "natural" that takes human intervention into account may seem simple at a glance, but it ain't so. Looking at North America (with which I am most familiar) for example, the hasty will be willing enough to declare anything that predates Columbus as native. Aside from the obvious introduction of humans anywhere from about 20,000 to 100,000 years ago.....I think that pretty much covers the spectrum of estimates.....there is also the problem of whatever microflora and microfauna they brought with them, in addition to the possibility of larger species. While this may seem like a niggling detail as compared to the wholesale introductions that occurred in the 15th through the 20th centuries, anyone familiar the basic principles of epidemiology will understand its significance. Language is always fraught with slippery and often hard to detect biases. "Genetic engineering", as the term is generally understood today, typically refers to various techniques...recombinant DNA being the most familiar...developed over the past few decades. IF the term is used with that in mind, some of the obstacles to understanding and agreement may be removed, but others remain in place, and most stubbornly so. In fact, humans have been actively and very busily engaged in genetic engineering of another sort for thousands of years.....compare teosinte with modern hybrid corn (aka maize) for one of the classic examples. Human induced selective pressures are so pervasive, in fact, that virtually NO important vegetative food crops can be considered "natural" in the sense that they are free of human meddling. Basmati rice, apples, sweet corn, cauliflower, Carpathian walnuts, Peruvian purple potatoes, tomatoes, wax beans, Bing cherries, and a host of other things we take for granted simply didn't exist 50,000 years ago. Animal species, for reasons that should be obvious (think motility, for instance) have been somewhat less tractable than plants, in the main, but the principle holds nevertheless. The best we can hope for, and it really isn't too complicated (which is not at all the same thing as not too difficult), is to find a definition for terms that is simple enough to work with within a given context and for a specific purpose. Unfortunately, and as is virtually always the case, the best we can hope for is always more than we can reasonably hope for. The barrier to fruitful discussion is not a matter of a dearth of useful definitions, but rather a plentitude of agendas to which mutually acceptable definitions are anathema. So, the by now bored reader might wonder, what does all this pompous pedantry lead to? Well, the CAREFUL reader will have noted that the terms "understanding" and "agreement" were used above in a manner that suggests they go hand in hand but, more often than not, people looking for one are working at cross purposes to those interested in the other. For people striving toward agreement, understanding is a gross impediment, while those for whom understanding is the goal must eventually come to the conclusion that agreement is a chimera. Wolfgang who would be happy enough to supply useful definitions......if it weren't so much fun to watch people thrash each other over things that are comprehensible to none of them. ![]() |
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![]() Wolfgang wrote: Definitions are beautiful and terrible things. A definition of anything as "native" or "natural" that takes human intervention into account may seem simple at a glance, but it ain't so. Looking at North America (with which I am most familiar) for example, the hasty will be willing enough to declare anything that predates Columbus as native. Aside from the obvious introduction of humans anywhere from about 20,000 to 100,000 years ago.....I think that pretty much covers the spectrum of estimates.....there is also the problem of whatever microflora and microfauna they brought with them, in addition to the possibility of larger species. While this may seem like a niggling detail as compared to the wholesale introductions that occurred in the 15th through the 20th centuries, anyone familiar the basic principles of epidemiology will understand its significance. Man has been around for awhile but his impact on the world's environment has been anything but constant during that time. Man has made more changes to the world's environment in the last 200 years than the rest of the time he has been on this planet. You go back a few thousand years and man's impact was much more in balance with the impact of other animals. Language is always fraught with slippery and often hard to detect biases. "Genetic engineering", as the term is generally understood today, typically refers to various techniques...recombinant DNA being the most familiar...developed over the past few decades. IF the term is used with that in mind, some of the obstacles to understanding and agreement may be removed, but others remain in place, and most stubbornly so. In fact, humans have been actively and very busily engaged in genetic engineering of another sort for thousands of years.....compare teosinte with modern hybrid corn (aka maize) for one of the classic examples. Human induced selective pressures are so pervasive, in fact, that virtually NO important vegetative food crops can be considered "natural" in the sense that they are free of human meddling. I agree. Basmati rice, apples, sweet corn, cauliflower, Carpathian walnuts, Peruvian purple potatoes, tomatoes, wax beans, Bing cherries, and a host of other things we take for granted simply didn't exist 50,000 years ago. Animal species, for reasons that should be obvious (think motility, for instance) have been somewhat less tractable than plants, in the main, but the principle holds nevertheless. Animals as well as plants have changed dramatically through selective breeding. I see selective breeding and genetic engineering as two very different things. However, I don't think either method can produce native plants or animals. The best we can hope for, and it really isn't too complicated (which is not at all the same thing as not too difficult), is to find a definition for terms that is simple enough to work with within a given context and for a specific purpose. Unfortunately, and as is virtually always the case, the best we can hope for is always more than we can reasonably hope for. The barrier to fruitful discussion is not a matter of a dearth of useful definitions, but rather a plentitude of agendas to which mutually acceptable definitions are anathema. So, the by now bored reader might wonder, what does all this pompous pedantry lead to? Well, the CAREFUL reader will have noted that the terms "understanding" and "agreement" were used above in a manner that suggests they go hand in hand but, more often than not, people looking for one are working at cross purposes to those interested in the other. For people striving toward agreement, understanding is a gross impediment, while those for whom understanding is the goal must eventually come to the conclusion that agreement is a chimera. I think that definitions in math and science play a different role. The language of the sciences is much "tighter." Even though there is not always total agreement about definitions and sometimes definitions are proven "wrong" or not useful, accepted definitions are a necessary part of the sciences. Wolfgang who would be happy enough to supply useful definitions......if it weren't so much fun to watch people thrash each other over things that are comprehensible to none of them. ![]() Don't think there will be many takers. Most Roffians find more amusement in toying around with Mr. Outdoor Magazine! Willi |
#8
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![]() "Willi" wrote in message ... Wolfgang wrote: Definitions are beautiful and terrible things. A definition of anything as "native" or "natural" that takes human intervention into account may seem simple at a glance, but it ain't so. Looking at North America (with which I am most familiar) for example, the hasty will be willing enough to declare anything that predates Columbus as native. Aside from the obvious introduction of humans anywhere from about 20,000 to 100,000 years ago.....I think that pretty much covers the spectrum of estimates.....there is also the problem of whatever microflora and microfauna they brought with them, in addition to the possibility of larger species. While this may seem like a niggling detail as compared to the wholesale introductions that occurred in the 15th through the 20th centuries, anyone familiar the basic principles of epidemiology will understand its significance. Man has been around for awhile but his impact on the world's environment has been anything but constant during that time. Man has made more changes to the world's environment in the last 200 years than the rest of the time he has been on this planet. Well, maybe. I mean, I guess it depends, at least in part, on how you define "more changes".....or who does the defining, for that matter. I've been meaning to ask that very question of the Pleistocene megafauna......but they never return my calls. ![]() Then too, there's that distressing business of grazing animals and deserts and all that ****. You go back a few thousand years and man's impact was much more in balance with the impact of other animals. I'm going to go way out on a limb here and guess that you're not a gomphothere. Language is always fraught with slippery and often hard to detect biases. "Genetic engineering", as the term is generally understood today, typically refers to various techniques...recombinant DNA being the most familiar...developed over the past few decades. IF the term is used with that in mind, some of the obstacles to understanding and agreement may be removed, but others remain in place, and most stubbornly so. In fact, humans have been actively and very busily engaged in genetic engineering of another sort for thousands of years.....compare teosinte with modern hybrid corn (aka maize) for one of the classic examples. Human induced selective pressures are so pervasive, in fact, that virtually NO important vegetative food crops can be considered "natural" in the sense that they are free of human meddling. I agree. Probably a mistake. Basmati rice, apples, sweet corn, cauliflower, Carpathian walnuts, Peruvian purple potatoes, tomatoes, wax beans, Bing cherries, and a host of other things we take for granted simply didn't exist 50,000 years ago. Animal species, for reasons that should be obvious (think motility, for instance) have been somewhat less tractable than plants, in the main, but the principle holds nevertheless. Animals as well as plants have changed dramatically through selective breeding. True, but to nowhere near the same extent either in terms of number species or, generally, degree of change. There are very good....and very well understood....reasons for this. There are also extensive and readily available resources explaining these reasons. I see selective breeding and genetic engineering as two very different things. So do I.......in some limited contexts having to do mainly with more or less current legal, ethical, and public health issues. However, if the ancient Mesoamericans had worked within the same cultural framework as we (a substantial stretch, I admit) "genetic engineering" would have a pedigree roughly equal to that of monotheism or historiography and considerably more impressive than that of say, the existential dilemma. However, I don't think either method can produce native plants or animals. Human chauvinism, no different than that which informs the biblical imperative to subjugate the Earth and its multifarious inhabitants. From a geological perspective the difference between natives and invaders doesn't amount to half a jar of cold ****. Or, to put it another way, what you....or I....think is less than irrelevant absent a consensus....or....to put it yet another way, see the paragraph immediately below. The best we can hope for, and it really isn't too complicated (which is not at all the same thing as not too difficult), is to find a definition for terms that is simple enough to work with within a given context and for a specific purpose. Unfortunately, and as is virtually always the case, the best we can hope for is always more than we can reasonably hope for. The barrier to fruitful discussion is not a matter of a dearth of useful definitions, but rather a plentitude of agendas to which mutually acceptable definitions are anathema. So, the by now bored reader might wonder, what does all this pompous pedantry lead to? Well, the CAREFUL reader will have noted that the terms "understanding" and "agreement" were used above in a manner that suggests they go hand in hand but, more often than not, people looking for one are working at cross purposes to those interested in the other. For people striving toward agreement, understanding is a gross impediment, while those for whom understanding is the goal must eventually come to the conclusion that agreement is a chimera. I think that definitions in math and science play a different role. Yes, to a large extent. The successes enjoyed by the sciences (and they are considerable successes) reflect, among other things, the degree of consensus concerning what is being explored and debated. The language of the sciences is much "tighter." Even though there is not always total agreement about definitions and sometimes definitions are proven "wrong" or not useful, accepted definitions are a necessary part of the sciences. Wolfgang who would be happy enough to supply useful definitions......if it weren't so much fun to watch people thrash each other over things that are comprehensible to none of them. ![]() Don't think there will be many takers. Most Roffians find more amusement in toying around with Mr. Outdoor Magazine! Not surprising. After all, ROFF is what it is. Wolfgang who really wouldn't want it to be anything else. |
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![]() Wolfgang wrote: Not surprising. After all, ROFF is what it is. Wolfgang who really wouldn't want it to be anything else. For me, it's a part of ROFF I can do without. I don't see the humor, satisfaction or pleasure in toying around with some clueless, easy target that puts his foot in his mouth with every sentence. (I know I need to get a sense of humor, but I think I'll pass on that type of humor). Willi |
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![]() Wolfgang wrote: Man has been around for awhile but his impact on the world's environment has been anything but constant during that time. Man has made more changes to the world's environment in the last 200 years than the rest of the time he has been on this planet. Well, maybe. I mean, I guess it depends, at least in part, on how you define "more changes".....or who does the defining, for that matter. I've been meaning to ask that very question of the Pleistocene megafauna......but they never return my calls. ![]() Then too, there's that distressing business of grazing animals and deserts and all that ****. Give me a break. That's pretty weak. However, I don't think either method can produce native plants or animals. Human chauvinism, no different than that which informs the biblical imperative to subjugate the Earth and its multifarious inhabitants. From a geological perspective the difference between natives and invaders doesn't amount to half a jar of cold ****. Or, to put it another way, what you....or I....think is less than irrelevant absent a consensus....or....to put it yet another way, see the paragraph immediately below. Not sure why one should take a geological perspective. From a geological perspective, the extinction of man wouldn't amount to half a jar of ****. It may be human chauvinism, but we're talking about the definition of human words. (at least I think we are) Willi |
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