Abiotic Disturbance in New Zealand Ecosystems: a Geomorphological Perspective. the Impact of Volcanism on Ecosystems in the North Island
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چکیده
There were slightly fewer than usual registrants but a cohesive, cosy conference ensued. Most participants travelled overland arriving on Monday night. The conference was opened by Tumu Te Heu Heu of Ngati Tuwharetoa. The Symposim that followed, on the theme 'Disturbance in New Zealand Ecosystems', produced a lot of material relevant to a conference held in Turangi to mark the National Park Centennial. Each of the two sections, physical and biological, were capably introduced by our keynote speakers, Phil Tonkin and Tom Veblen. The general conference programme was as follows: Tuesday: Symposium Wine and Cheese evening including a debate Wednesday: Symposium Summing up of Symposium Contributed papers Poster session Annual Dinner Thursday: Field trips AGM Friday: Presidential address Contributed papers Papers presented at the Symposim were: Philip Tonkin: Abiotic disturbance in New Zealand ecosystems: a geomorphic perspective. Neall and Lees: The impact of volcanism on ecosystems of the North Island. Clarkson: Vegetation succession following recent (less than 450 years) volcanic disturbance in the North Island. Burrows: The importance of snow avalanches as a disturbing influence in South Island mountain vegetation. Thomas Veblen: Biotic disturbance and vegetation dynamics. Shaw: Disturbance and the vegetation of Urewera National Park: an overview. Stewart and Rose: Techniques for analysing forest disturbance history. Steele: Disturbance and mountain beech forest in Tongariro National Park. Jane: Can natural disturbance be distinguised from red deer impact in simple mountain beech forest? White: A systems perspective on disturbance. O'Connor and Swaffield: How is anthropic disturbance to be accommodated in landscape ecology and nature conservation. West: Clematis vitalba: an invader of disturbed ecosystems. The bus field trip on Thursday took people for a round trip in the vicinity of the Tongariro volcanoes., and the effects of many major natural disturbances. were seen and explained by on-hand experts. Similarly the aquatic field trip looked at local wet things and ' the 'muddy boot' field trip explored ecological patterns at leisurely pace. Papers presented in the contributed papers 'Sessions on Wednesday and Friday were: Dickinson: The Waikaia Ecological Region-results of PNA surveys of the Umbrella and Nokomai Ecological districts. Burns & Shaw: Ecology of wild populations of kakabeak (Clianthus puniceus) at Lake Waikaremoana. Williams, Courtney, Glenny & Hall: The diversity and conservation status of pakihi vegetation in North Westland. Timmins & Williams: Permeability of PNAs to problem plants. Hollinger: Effect of overstorey dieback on understorey light environment and seedling photosynthesis in mountain beech. …
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