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Index of Subjects --Apple-Mail-24--952066071 Content-Type: text/plain; charset=WINDOWS-1252; format=flowed; delsp=yes Content-Transfer-Encoding: quoted-printable Of course, invasives are generally introduced by non-natural means. Not mentioned among the harmful invasives in NS is Mouse-eared =20 Hawkweed. It competes with native grasses, lowers the grazing =20 potential of pastureland, increases runoff, and is almost impossible =20 to get rid of. It took me a trip to Africa (to observe the bushveld mammals) tot =20 persuad me that human impact is so intense in some areas that only =20 intelligent management can preserve a healthy approximation to the =20 =93natural=94 fauna. On my NS property, most of the =93wild=94 flowers are actually European. = =20 That is no exaggeration. The commonest crab along the shore is also =20 European, and has drive out the native species. The commonest orb-=20 weaver spider first showed up in Nova Scotia in the 1880s, and one =20 rather seldom sees the native forms in any such numbers. Most of these invasives are impossible to control. But we can fight =20 some of the most noxious ones: House Sparrows, Poison Ivy, feral cats, =20= &c. There are places in the world where introduction of non-native species =20= has been truly disastrous: in Hawaii over half the native bird species =20= have gone extinct because of the introduction of non-native =20 predators. More extinctions have been caused by introduction of =20 invasives that by hunting! On 2 Nov 2010, at 12:03 AM, uhoeger@dal.ca wrote: > This kind of imprudent, incorrect and misleading argumentation could =20= > be > made to put an end to each and every environmental, conservational, > medical, humanitarian, etc. project. > > Ulli > > P.S. And what was the definition of "natural selection" in the =20 > evolution > theory again? > >> >> Hey all you evolutionists out there, why are you trying to prevent =20= >> 'natural selection' and 'survival of >> the fittest'? >> >> Lois & Don Codling > --Apple-Mail-24--952066071 Content-Type: text/html; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable <html><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; = -webkit-line-break: after-white-space; ">Of course, invasives are = generally introduced by <i>non-natural</i> means.<div><br></div><div>Not = mentioned among the harmful invasives in NS is Mouse-eared Hawkweed. = It competes with native grasses, lowers the grazing potential of = pastureland, increases runoff, and is almost impossible to get rid = of.</div><div><br></div><div>It took me a trip to Africa (to observe the = bushveld mammals) tot persuad me that human impact is so intense in some = areas that only intelligent management can preserve a healthy = approximation to the =93natural=94 fauna.</div><div><br></div><div>On my = NS property, most of the =93wild=94 flowers are actually European. = That is no exaggeration. The commonest crab along the shore = is also European, and has drive out the native species. The = commonest orb-weaver spider first showed up in Nova Scotia in the 1880s, = and one rather seldom sees the native forms in any such = numbers.</div><div><br></div><div>Most of these invasives are impossible = to control. But we can fight some of the most noxious ones: House = Sparrows, Poison Ivy, feral cats, &c.</div><div><br></div><div>There = are places in the world where introduction of non-native species has = been truly disastrous: in Hawaii over half the native bird species have = gone extinct because of the introduction of non-native predators. = More extinctions have been caused by introduction of invasives = that by hunting!</div><div><br></div><div><br><div><div>On 2 Nov 2010, = at 12:03 AM, uhoeger@dal.ca = wrote:</div><br class=3D"Apple-interchange-newline"><blockquote = type=3D"cite"><div>This kind of imprudent, incorrect and misleading = argumentation could be <br>made to put an end to each and every = environmental, conservational, <br>medical, humanitarian, etc. = project.<br><br>Ulli<br><br>P.S. And what was the definition of = "natural selection" in the evolution <br>theory = again?<br><br><blockquote type=3D"cite"><br></blockquote><blockquote = type=3D"cite">Hey all you evolutionists out there, why are you trying to = prevent 'natural selection' and 'survival of = <br></blockquote><blockquote type=3D"cite">the = fittest'?<br></blockquote><blockquote = type=3D"cite"><br></blockquote><blockquote type=3D"cite">Lois & Don = Codling<br></blockquote><br></div></blockquote></div><br></div></body></ht= ml>= --Apple-Mail-24--952066071--
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