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Index of Subjects
Index of Subjects --f403045dd5568288e8056b9dbf00 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Dave "Invasive" sets off people's fear alarm and this results often in unnecessary or disturbing intervention. We do need an ecological think tank that is in place and has academic credibility. We need a group that understands evolution and systems ecology more than taxonomy although all should be involved. It should logically come out of the Wildlife Division of DNR. Currently, CFIA is involved..DFO as it relates to fishery. Someone with an ecological bent gets a bit upset when we spasm to confront a pest like adelgid. I have witnessed the response over Brown Spruce Longhorn Beetle. Saw a lot of big tree felling and sanitization but not a lot of ecological thought, experiment, study or peer-reviewed write ups. I recall the roadside spray program for the ubiquitous ragweed. It was counter-productive and caused road edges to stay open and serve for the establishment of more ragweed from the seed bank. Nick On Mon, May 7, 2018 at 9:53 AM, David Patriquin <David.Patriquin@dal.ca> wrote: > 'Lot's of discussion about invasive species... but so far I have no repor= t > on the occurrence of dog-strangling vine in NS (other than the one I cit= ed > for the Port George area) which is what I wanted to determine.. how commo= n > is it here? > > > Also, I wondered if there is a group/gov agency which is actively keeping > track of invasives in NS > > > 'Any help on these appreciated > > > ------------------------------ > *From:* naturens-owner@chebucto.ns.ca <naturens-owner@chebucto.ns.ca> on > behalf of Nick Hill <fernhillns@gmail.com> > *Sent:* Saturday, May 5, 2018 4:37 PM > *To:* naturens@chebucto.ns.ca > *Subject:* Re: Re[2]: [NatureNS] Dog-strangling vine in Nova Scotia > > Calm...i lived in southeast Kentucky > We had kudzu vine that swallowed abandoned houses...crossex roads via > phone lines > Scary but before we call Jesus and Mary we notice it did not enter intact > woodland and was restricted to about 30m from the roaside. > We do have a couple of plants that are 9f concern because they do get int= o > fairly intact ecosystems. I'd put glossy buckthorn at the top of the list > and then in terms of potential for harm given reports from elsewhere, I'd > be concerned about the spread of garlic mustard. > > Glossy? It's naturalized now and is part of swamps and early forest > succession. It's not the end of the world...its green it's a laxative for > birds and it fits into a red maple alder tudspuck sedge swamp with no > apparent diversity or community function effects. > > Fight clearcutting and our inability to get any marine protected areas fo= r > the eastern shore because we don't want any impingement on rockweed harve= st > or oil and gas development. > > Great name! > > On Sat, May 5, 2018, 1:21 PM David, <dwebster@glinx.com> wrote: > > Hi Dave P., Bev and all. > What an unfortunate name to be saddled with. Just this side of > 'wanted dead or alive'. I wish to add to Bev's comments about the > abundance of 'invasives'. > As a general rule of thumb animals and plants eventually generate > conditions which threaten their well being/survival. And those which > prevail may do so by "invading" fresh territory which is not loaded with > diseases or parasites. > Consequently, if something is threatened the best recovery remedy may > be to move a starter kit of it elsewhere. Before lighting long distance > flame throwers think about this in general terms. What is the better > choice 1) act to preserve a flora and fauna which is free of "invasive" > species or 2) act to enable survival of species which may be endangered > ? > Yt, DW. Kentville > > ------ Original Message ------ > From: "Bev Wigney" <bkwigney@gmail.com> > To: naturens@chebucto.ns.ca > Sent: 5/5/2018 9:35:44 AM > Subject: Re: [NatureNS] Dog-strangling vine in Nova Scotia > > >Bad news if Dog-strangling vine (DSV) is here as it is quite a scourge > >in eastern Ontario. Everyone struggles to keep it out of their gardens > >and it grows rampant on vacant properties or even in woodlands. I was > >in Ontario all last summer and went for walks in several places around > >Ottawa and found it growing profusely everywhere. Fred Schueler may > >comment on the prevalence there and perhaps here as well. Another up > >and comer I saw there spreading out from what might have been its > >Ground Zero in an abandoned industrial park was Tartarian Maple. > >*sigh* > > > >As for invasive plants, I haven't found that there is much concern > >over them here in NS although maybe there is a department that records > >such things. I did try to find out about this a few years ago after > >taking note of an incredible acreage which was just covered with a > >non-native vine -- Wisteria sinensis. I made mention of it here on > >NatureNS at the time (summer 2013). It grows rampantly all over the > >woods at this property, but also along the roadside and actually up > >over the powerlines - smothering everything in its path. I've seen it > >spreading out from there, but it seems that is not considered > >problematic. At the time, I did some readng up on it and discovered > >that just about everywhere, it is considered a serious invasive. > >Reminds me of the Japanese Knotweed around here -- growing along Route > >201 and in vacant land in Annapolis Royal. When I first moved here, a > >neighbour offered to give me some roots of his "bamboo". He used to > >chop it down and toss it into a ravine on his own property and now > >it's growing down there. I see a lot of it around Bridgetown next to > >the river too. It seems to be everywhere. However, I don't think > >there is much concern. The truth is, here around Annapolis Royal, if > >all of the particularly invasive, non-native plants (multiflora roses, > >goutweed, tansy, knotweed, phragmites, wisteria, etc..) ever > >disappeared overnight, their absence would leave something of a > >wasteland. I suspect European and Asiatic plants probably outnumber > >natives by about 2 to 1. I've found that to be the case with snails > >and slugs and to some extent with insects as well, by the way. No > >doubt, many of these plants came with the settlers and seem to have > >done quite well over the centuries. Definitely has an impact on the > >ecology of the area -- less native plant hosts for