Putative Hosts for Dactylanthus
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A Commentary on Canopy Tree Mortality in Westland Rata-Kamahi Protection Forests G
A COMMENTARY ON CANOPY TREE MORTALITY IN WESTLAND RATA-KAMAHI PROTECTION FORESTS G. H. STEWART* and T. T. VEBLEN f ABSTRACT The apparently excessive canopy tree mortality in the rata- kamahi forests of Westland has resulted in the widespread belief that persistence of the forest cover in this area may be endangered. Browsing by the Australian brush-tailed possum (Trichosurus , vulpecula) is commonly believed to be the cause of the widespread mortality. Consequently', research has been directed towards studies of possum diet and vegetation condition under varying possum densities. However, browsing by possums does not appear to be the sole cause of the tree mortality. Natural stand dynamic processes appear to contribute importantly to the observed mortality patterns. The development of even-aged stands following massive disturbances such as mass movements and windthrow and, thus, the presence of groups of senescent trees appears to be an important contributory factor. Possum browsing (as well as other lethal influences) may be affecting stands already susceptible as a result of natural stand dynamic processes. INTRODUCTION Grey crowns of dead or apparently dying trees are often conspicuous in the highland hardwood-softwood forests of the North and South Islands of New Zealand. They are especially common in rata-kamahi forests in Westland, on the South Island, where in many areas they give a white tint to the landscape. Since the 1940s this mortality has caused concern as these rata- kamahi forests are considered vital to the protection of agricultural and forestry production in the adjacent lowlands. •Protection Forestry Division, Forest Research Institute, P.O. -
Nzbotsoc No 86 Dec 2006
NEW ZEALAND BOTANICAL SOCIETY NEWSLETTER NUMBER 86 DECEMBER 2006 New Zealand Botanical Society President: Anthony Wright Secretary/Treasurer: Ewen Cameron Committee: Bruce Clarkson, Colin Webb, Carol West Address: c/- Canterbury Museum Rolleston Avenue CHRISTCHURCH 8001 Subscriptions The 2006 ordinary and institutional subscriptions are $25 (reduced to $18 if paid by the due date on the subscription invoice). The 2006 student subscription, available to full-time students, is $9 (reduced to $7 if paid by the due date on the subscription invoice). Back issues of the Newsletter are available at $2.50 each from Number 1 (August 1985) to Number 46 (December 1996), $3.00 each from Number 47 (March 1997) to Number 50 (December 1997), and $3.75 each from Number 51 (March 1998) onwards. Since 1986 the Newsletter has appeared quarterly in March, June, September and December. New subscriptions are always welcome and these, together with back issue orders, should be sent to the Secretary/Treasurer (address above). Subscriptions are due by 28th February each year for that calendar year. Existing subscribers are sent an invoice with the December Newsletter for the next years subscription which offers a reduction if this is paid by the due date. If you are in arrears with your subscription a reminder notice comes attached to each issue of the Newsletter. Deadline for next issue The deadline for the March 2007 issue is 25 February 2007 Please post contributions to: Melanie Newfield 17 Homebush Rd Khandallah Wellington Send email contributions to [email protected]. Files are preferably in MS Word (Word XP or earlier) or saved as RTF or ASCII. -
Patterns of Flammability Across the Vascular Plant Phylogeny, with Special Emphasis on the Genus Dracophyllum
Lincoln University Digital Thesis Copyright Statement The digital copy of this thesis is protected by the Copyright Act 1994 (New Zealand). This thesis may be consulted by you, provided you comply with the provisions of the Act and the following conditions of use: you will use the copy only for the purposes of research or private study you will recognise the author's right to be identified as the author of the thesis and due acknowledgement will be made to the author where appropriate you will obtain the author's permission before publishing any material from the thesis. Patterns of flammability across the vascular plant phylogeny, with special emphasis on the genus Dracophyllum A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of philosophy at Lincoln University by Xinglei Cui Lincoln University 2020 Abstract of a thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of philosophy. Abstract Patterns of flammability across the vascular plant phylogeny, with special emphasis on the genus Dracophyllum by Xinglei Cui Fire has been part of the environment for the entire history of terrestrial plants and is a common disturbance agent in many ecosystems across the world. Fire has a significant role in influencing the structure, pattern and function of many ecosystems. Plant flammability, which is the ability of a plant to burn and sustain a flame, is an important driver of fire in terrestrial ecosystems and thus has a fundamental role in ecosystem dynamics and species evolution. However, the factors that have influenced the evolution of flammability remain unclear. -
Breeding Systems and Reproduction of Indigenous Shrubs in Fragmented
Copyright is owned by the Author of the thesis. Permission is given for a copy to be downloaded by an individual for the purpose of research and private study only. The thesis may not be reproduced elsewhere without the permission of the Author. Breeding systems and reproduction of indigenous shrubs in fragmented ecosystems A thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy III Plant Ecology at Massey University by Merilyn F Merrett .. � ... : -- �. � Massey University Palrnerston North, New Zealand 2006 Abstract Sixteen native shrub species with various breeding systems and pollination syndromes were investigated in geographically separated populations to determine breeding systems, reproductive success, population structure, and habitat characteristics. Of the sixteen species, seven are hermaphroditic, seven dioecious, and two gynodioecious. Two of the dioecious species are cryptically dioecious, producing what appear to be perfect, hermaphroditic flowers,but that functionas either male or female. One of the study species, Raukauaanomalus, was thought to be dioecious, but proved to be hermaphroditic. Teucridium parvifolium, was thought to be hermaphroditic, but some populations are gynodioecious. There was variation in self-compatibility among the fo ur AIseuosmia species; two are self-compatible and two are self-incompatible. Self incompatibility was consistent amongst individuals only in A. quercifolia at both study sites, whereas individuals in A. macrophylia ranged from highly self-incompatible to self-compatible amongst fo ur study sites. The remainder of the hermaphroditic study species are self-compatible. Five of the species appear to have dual pollination syndromes, e.g., bird-moth, wind-insect, wind-animal. High levels of pollen limitation were identified in three species at fo ur of the 34 study sites. -
Forests and Scrublands of Northern Fiordland
80 Vol. 1 FORESTS AND SCRUBLANDS OF NORTHERN FIORDLAND J. WARDLE, J. HAYWARD, and J. HERBERT, Forest and Range Experiment Station, New Zealand Forest Service, Rangiora (Received for publication 18 January 1971) ABSTRACT The composition and structure of the forests and scrublands of northern Fiordland were recorded at 1,053 sample points. The vegetation at each sample point was classified into one of 16 associations using a combination of Sorensen's 'k' index of similarity, and a multi-linkage cluster analysis. The associations were related to habitat and the distribution of each was determined. The influence of the introduced ungulates, red deer and wapiti, on the forests and scrublands was determined. Stand structure was analysed to provide infor mation on the susceptibility of the vegetation to damage from browsing and on the history of ungulate utilisation of the vegetation. Browse indices were calculated to provide information on current ungulate utilisation of the vegetation. INTRODUCTION A reconnaissance of northern Fiordland was carried out during the summer of 1969-70 by staff of the Forest and Range Experiment Station. The purpose was to describe the composition, structure, and habitat of the forest and scrub associations, to determine both present and past influence of ungulates on them, and to establish a number of permanent reference points to permit measurement of future changes in the vegetation. The area studied lies between the western shores of Lake Te Anau and the Tasman Sea. The southern boundary is the South Fiord of Lake Te Anau, the Esk Burn and Windward River catchments, and Charles Sound; the northern boundary is the Worsley and Transit River catchments (Fig. -
Vascular Plants of an Unclassified Islet, Cape Brett Peninsula, Northern New Zealand, by E.K. Cameron, P
TANE 28,1982 VASCULAR PLANTS OF AN UNCLASSIFIED ISLET, CAPE BRETT PENINSULA, NORTHERN NEW ZEALAND by E.K. Cameron Department of Botany, University of Auckland, Private Bag, Auckland SUMMARY Seventy indigenous and 2 adventive vascular plants taxa are recorded for the "unmodified" islet. Its botanical value exceeds its small size because of the modification of the adjacent Cape Brett Peninsula and nearby islands. INTRODUCTION The islet is situated only a few metres off the northern coastline of Cape Brett Peninsula (Fig. 1). This steep beehive-shaped greywacke islet, less than two hectares in area, supports an excellent cover of indigenous vegetation compared with the adjacent goat (Copra hircus) browsed mainland. Approximately thirty minutes was spent on the islet during a four day botanical survey of Cape Brett Peninsula carried out for the Department of Lands and Survey, Auckland, in June 1980 (Cameron 1980). Time permitted only a single south-west to north-east traverse, returning to the starting point via the north-west littoral. PLANT COMMUNITIES For ease of description four plant associations (Fig. 2) are recognised although it must be remembered that these are by no means distinct as they grade into one another. Area 1: Coastal Rock. The amount of coastal rock on the islet is proportional to the degree of wave exposure and thus the north-eastern side of the islet has the greatest amount of exposed rock. Plants such as Asplenium flaccidum ssp. haurakiense, Samolus repens and the shore lobelia (Lobelia anceps) are frequently found growing in cracks and crevices. Others found here include the N.Z. -
Phylogeny and Phylogenetic Nomenclature of the Campanulidae Based on an Expanded Sample of Genes and Taxa
Systematic Botany (2010), 35(2): pp. 425–441 © Copyright 2010 by the American Society of Plant Taxonomists Phylogeny and Phylogenetic Nomenclature of the Campanulidae based on an Expanded Sample of Genes and Taxa David C. Tank 1,2,3 and Michael J. Donoghue 1 1 Peabody Museum of Natural History & Department of Ecology & Evolutionary Biology, Yale University, P. O. Box 208106, New Haven, Connecticut 06520 U. S. A. 2 Department of Forest Resources & Stillinger Herbarium, College of Natural Resources, University of Idaho, P. O. Box 441133, Moscow, Idaho 83844-1133 U. S. A. 3 Author for correspondence ( [email protected] ) Communicating Editor: Javier Francisco-Ortega Abstract— Previous attempts to resolve relationships among the primary lineages of Campanulidae (e.g. Apiales, Asterales, Dipsacales) have mostly been unconvincing, and the placement of a number of smaller groups (e.g. Bruniaceae, Columelliaceae, Escalloniaceae) remains uncertain. Here we build on a recent analysis of an incomplete data set that was assembled from the literature for a set of 50 campanulid taxa. To this data set we first added newly generated DNA sequence data for the same set of genes and taxa. Second, we sequenced three additional cpDNA coding regions (ca. 8,000 bp) for the same set of 50 campanulid taxa. Finally, we assembled the most comprehensive sample of cam- panulid diversity to date, including ca. 17,000 bp of cpDNA for 122 campanulid taxa and five outgroups. Simply filling in missing data in the 50-taxon data set (rendering it 94% complete) resulted in a topology that was similar to earlier studies, but with little additional resolution or confidence. -
(Rubiaceae), a Uniquely Distylous, Cleistogamous Species Eric (Eric Hunter) Jones
Florida State University Libraries Electronic Theses, Treatises and Dissertations The Graduate School 2012 Floral Morphology and Development in Houstonia Procumbens (Rubiaceae), a Uniquely Distylous, Cleistogamous Species Eric (Eric Hunter) Jones Follow this and additional works at the FSU Digital Library. For more information, please contact [email protected] THE FLORIDA STATE UNIVERSITY COLLEGE OF ARTS AND SCIENCES FLORAL MORPHOLOGY AND DEVELOPMENT IN HOUSTONIA PROCUMBENS (RUBIACEAE), A UNIQUELY DISTYLOUS, CLEISTOGAMOUS SPECIES By ERIC JONES A dissertation submitted to the Department of Biological Science in partial fulfillment of the requirements for the degree of Doctor of Philosophy Degree Awarded: Summer Semester, 2012 Eric Jones defended this dissertation on June 11, 2012. The members of the supervisory committee were: Austin Mast Professor Directing Dissertation Matthew Day University Representative Hank W. Bass Committee Member Wu-Min Deng Committee Member Alice A. Winn Committee Member The Graduate School has verified and approved the above-named committee members, and certifies that the dissertation has been approved in accordance with university requirements. ii I hereby dedicate this work and the effort it represents to my parents Leroy E. Jones and Helen M. Jones for their love and support throughout my entire life. I have had the pleasure of working with my father as a collaborator on this project and his support and help have been invaluable in that regard. Unfortunately my mother did not live to see me accomplish this goal and I can only hope that somehow she knows how grateful I am for all she’s done. iii ACKNOWLEDGEMENTS I would like to acknowledge the members of my committee for their guidance and support, in particular Austin Mast for his patience and dedication to my success in this endeavor, Hank W. -
Co-Extinction of Mutualistic Species – an Analysis of Ornithophilous Angiosperms in New Zealand
DEPARTMENT OF BIOLOGICAL AND ENVIRONMENTAL SCIENCES CO-EXTINCTION OF MUTUALISTIC SPECIES An analysis of ornithophilous angiosperms in New Zealand Sandra Palmqvist Degree project for Master of Science (120 hec) with a major in Environmental Science ES2500 Examination Course in Environmental Science, 30 hec Second cycle Semester/year: Spring 2021 Supervisor: Søren Faurby - Department of Biological & Environmental Sciences Examiner: Johan Uddling - Department of Biological & Environmental Sciences “Tui. Adult feeding on flax nectar, showing pollen rubbing onto forehead. Dunedin, December 2008. Image © Craig McKenzie by Craig McKenzie.” http://nzbirdsonline.org.nz/sites/all/files/1200543Tui2.jpg Table of Contents Abstract: Co-extinction of mutualistic species – An analysis of ornithophilous angiosperms in New Zealand ..................................................................................................... 1 Populärvetenskaplig sammanfattning: Samutrotning av mutualistiska arter – En analys av fågelpollinerade angiospermer i New Zealand ................................................................... 3 1. Introduction ............................................................................................................................... 5 2. Material and methods ............................................................................................................... 7 2.1 List of plant species, flower colours and conservation status ....................................... 7 2.1.1 Flower Colours ............................................................................................................. -
Sanctuary Mountain Maungatautari Restoration Plan 2019–2029
Sanctuary Mountain Maungatautari Restoration Plan 2019–2029 Prepared for: Maungatautari Ecological Island Trust June 2019 Sanctuary Mountain Maungatautari Restoration Plan 2019–2029 Contract Report: LC3464 John Innes, Corinne Watts Manaaki Whenua – Landcare Research Bruce Burns University of Auckland With contributions from other members of, and advisors to, the Maungatautari Scientific and Technical Advisory Panel: Aaron Barnsdall (Mana Whenua Trustee) Geoff Churchill (Maungatautari Ecological Island Trust) Professor Bruce Clarkson (University of Waikato) Poto Davies (Maungatautari Mana Whenua) Dr Catherine Kirby (University of Waikato) Cheridan Mathers (Hamilton Zoo) Dr Shelley Langton-Myers (EcoQuest Education Foundation) Robyn Nightingale (Maungatautari Mana Whenua) Dr Kate Richardson (Waikato Regional Council) Tony Roxburgh (Waipa District Council) Alan Saunders (Waikato Regional Council) Dr Andrew Styche (Department of Conservation) Dr Kiri Wallace (University of Waikato) Dr Janelle Ward (Maungatautari Ecological Island Trust) Reviewed by: Approved for release by: Robyn Simcock Gary Houliston Scientist Portfolio Leader – Enhancing Biodiversity Manaaki Whenua – Landcare Research Manaaki Whenua – Landcare Research Disclaimer This report has been prepared by Manaaki Whenua – Landcare Research for Maungatautari Ecological Island Trust. If used by other parties, no warranty or representation is given as to its accuracy and no liability is accepted for loss or damage arising directly or indirectly from reliance on the information in it. -
Download Article As 724.4 KB PDF File
66 AvailableNew on-lineZealand at: Journal http://www.newzealandecology.org/nzje/ of Ecology, Vol. 34, No. 1, 2010 special issue: Feathers to Fur The ecological transformation of Aotearoa/New Zealand Mutualisms with the wreckage of an avifauna: the status of bird pollination and fruit- dispersal in New Zealand Dave Kelly1*, Jenny J. Ladley1, Alastair W. Robertson2, Sandra H. Anderson3, Debra M. Wotton1, and Susan K. Wiser4 1School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand 2Ecology, Institute of Natural Resources, Massey University, Private Bag 11222, Palmerston North 4474, New Zealand 3School of Environment, University of Auckland, Private Bag 92019, Auckland 1010, New Zealand 4Landcare Research, PO Box 40, Lincoln 7640, New Zealand *Author for correspondence (Email: [email protected]) Published on-line: 9 November 2009 Abstract: Worldwide declines in bird numbers have recently renewed interest in how well bird–plant mutualisms are functioning. In New Zealand, it has been argued that bird pollination was relatively unimportant and bird- pollination failure was unlikely to threaten any New Zealand plants, whereas dispersal mutualisms were widespread and in some cases potentially at risk because of reliance on a single large frugivore, the kereru (Hemiphaga novaeseelandiae). Work since 1989, however, has changed that assessment. Smaller individual fruits of most plant species can be dispersed by mid-sized birds such as tui (Prosthemadera novaezelandiae) because both fruits and birds vary in size within a species. Only one species (Beilschmiedia tarairi) has no individual fruits small enough for this to occur. Germination of 19 fleshy-fruited species, including most species with fruits >8 mm diameter, does not depend on birds removing the fruit pulp. -
Conservation Status of New Zealand Indigenous Vascular Plants, 2012
NEW ZEALAND THREAT CLASSIFICATION SERIES 3 Conservation status of New Zealand indigenous vascular plants, 2012 Peter J. de Lange, Jeremy R. Rolfe, Paul D. Champion, Shannel P. Courtney, Peter B. Heenan, John W. Barkla, Ewen K. Cameron, David A. Norton and Rodney A. Hitchmough Cover: The Nationally Critical shrub Pittosporum serpentinum from the Surville Cliffs is severely affected by possums, and no seedlings have been found during recent surveys. Photo: Jeremy Rolfe. New Zealand Threat Classification Series is a scientific monograph series presenting publications related to the New Zealand Threat Classification System (NZTCS). Most will be lists providing NZTCS status of members of a plant or animal group (e.g. algae, birds, spiders). There are currently 23 groups, each assessed once every 3 years. After each 3-year cycle there will be a report analysing and summarising trends across all groups for that listing cycle. From time to time the manual that defines the categories, criteria and process for the NZTCS will be reviewed. Publications in this series are considered part of the formal international scientific literature. This report is available from the departmental website in pdf form. Titles are listed in our catalogue on the website, refer www.doc.govt.nz under Publications, then Science & technical. © Copyright August 2013, New Zealand Department of Conservation ISSN 2324–1713 (web PDF) ISBN 978–0–478–14995–1 (web PDF) This report was prepared for publication by the Publishing Team; editing by Amanda Todd and layout by Lynette Clelland. Publication was approved by the Deputy Director-General, Science and Capability Group, Department of Conservation, Wellington, New Zealand.