Insects of snow tussock grassland on the East Otago Plateau

Barratt, B. I. P.; Patrick, Brian

doi:10.1080/00779962.1987.9722513

Cited by 33 publications

(24 citation statements)

References 18 publications

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“…Soil type is Teviot silt loam with a pH of 4.5-5.0 in the trial areas. The vegetation described in detail by Barratt & Patrick (1987) comprised as an average for the area, 37% grasses (including 10% native tussock species), 22% herbaceous plants, 18% shrubs and "sub-shrubs", 20% bare ground and dead matter, and the remaining 3% sedges and rushes, lichens, and mosses. The area had been grazed and periodically burnt, but not oversown or top-dressed.…”

Section: Field Trialsmentioning

confidence: 99%

Seed coating with insecticide to improve oversown white clover(Trifolium repensL.) establishment in tussock grassland

Barratt

Lowther

Ferguson

1995

New Zealand Journal of Agricultural Research

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Laboratory and field-screening experiments were carried out to evaluate a range of systemic insecticides for protection of white clover (Trifolium repens L.) seedlings from native broadnosed weevil (Curculionidae: Brachycerinae) feeding damage, and for compatability with rhizobia. A laboratory bioassay showed that acephate, carbosulfan, oxamyl, thiodicarb, triaziphos, isofenphos, and lindane could reduce weevil feeding damage and increase seedling survival. When evaluated in the field, carbosulfan and isofenphos improved early seedling establishment more effectively than lindane and acephate. A commercially available white clover seed treatment, furathiocarb, increased seedling survival, and yield for up to 13 months after sowing. In the laboratory, carbosulfan, or its liquid carrier, caused rapid mortality of rhizobia whereas isofenphos and furathiocarb caused no significant mortality of rhizobia.

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Section: Field Trialsmentioning

confidence: 99%

Seed coating with insecticide to improve oversown white clover(Trifolium repensL.) establishment in tussock grassland

Barratt

Lowther

Ferguson

1995

New Zealand Journal of Agricultural Research

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“…The Otago region of southern New Zealand has a particularly diverse invertebrate fauna and is thought to represent a major centre of invertebrate endemism (Barratt and Patrick 1987;Barratt and Kuschel 1996). A significant proportion of this diversity occurs in the tussock grasslands characterising much of the montane inland areas.…”

Section: Introductionmentioning

confidence: 99%

Associations Between Weevils (Coleoptera: Curculionidea) and Plants, and Conservation Values in Two Tussock Grasslands, Otago, New Zealand

2006

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Ecosystem level processes and species interactions have become important concepts in conservation and land management. Despite being New Zealand's greatest contributors to global diversity, native invertebrates have been largely overlooked in the assessment of land values, and their diversity has often been assumed to reflect native plant diversity without justification. Invertebrates can in fact affect plant species composition, and in ecosystems such as New Zealand's remaining indigenous and semi-modified tussock grasslands can do so in excess of more conspicuous vertebrate grazers. An understanding of the interactions between invertebrates and their plant hosts may be informative in assessing land conservation values, increase the efficiency of rapid inventory analyses and would be applicable across the production-conservation spectrum. This study considers the Curculionoidea, vascular plant, bryophyte and lichen communities of two semimodified tussock grasslands in the Otago region of southern New Zealand. Quantitative plant and invertebrate sampling were carried out in January 2001. Data were analysed using ANalysis Of SIMilarity (ANOSIM) and Multi-Dimensional Scaling (MDS) ordination techniques. Vascular plant, bryophyte and lichen species richness was highest in the same site and plots as native weevil species richness, however the proportion of native vegetation in these locations was lower. Associations identified between Curculionoidea and vascular plants were dismissed due to the confounding effect of species frequency across samples. This appeared to have little influence on associations with bryophytes and/or lichens and these were given more weighting. The ecological implications of associations are considered and variability in weevil composition is discussed in reference to the tussock grassland environment. The importance of plant-invertebrate relationships to conservation and the uses and limitations of the PRIMER MDS ordination technique for determining associations are discussed.

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“…Although no specimens were seen from Buller, Dunedin, and Westland, Myers recorded it from Greymouth. Barratt & Patrick (1987) Celmisia species. As adults and nymphs were taken on roadside grass and weeds, notably sorrel, between Lakes Tekapo and Pukaki, they were breeding there.…”

Section: Species Descriptionsmentioning

confidence: 99%

A review and revision of the genusRhypodesStål (Hemiptera: Lygaeidae)

Eyles¹

1990

New Zealand Journal of Zoology

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New Zealand now has more species of Orsillinae than any continent, being second only to the Hawaiian Islands in proliferation of species.Twenty-two new species of Rhypodes Stal: argenteus, atricornis, brachypterus, brevifissas, brevipilis, bucculentus, celmisiae, cognatus, crinitus, depilis, eminens, gracilis. hirsutus.jugatus, koebelei, longiceps, longirostris, rupestris, russatus, spadix, townsendi, and triangulus are described and figured. HudsonaEvans 1929 is synonymised withRhypodes.The six previously known species are redescribed and figured. Limits of the genus are set and a key to distinguish the 28 species now known in Rhypodes (which is endemic to New Zealand) is provided. A lectotype has been designated for NysiuszealandicusDallas. There is an illustrated general morphology section and a list of taxonomic characters. The results of a numerical phenetic analysis using 96 characters is presented. Some abnormalities in venation on th,eforewin~membrane and on the hindwing are descnbed and figured, Toothed spines on the abdominal membrane near the inner laterotergites are described. There is a progression ofsiting of abdominal spiracle VII from a central position to the lateral dge of t.he dorsal connexivum surface. Biological information on host plants and habitat are given, as are distribution maps of the eight most abundant species. A possible zonation on one mountain as a result of competition between species is suggested.

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Insects of snow tussock grassland on the East Otago Plateau

Cited by 33 publications

References 18 publications

Seed coating with insecticide to improve oversown white clover(Trifolium repensL.) establishment in tussock grassland

Seed coating with insecticide to improve oversown white clover(Trifolium repensL.) establishment in tussock grassland

Associations Between Weevils (Coleoptera: Curculionidea) and Plants, and Conservation Values in Two Tussock Grasslands, Otago, New Zealand

A review and revision of the genusRhypodesStål (Hemiptera: Lygaeidae)

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