DOCSLIB.ORG

Gevoeligheid Van Uitstaande Melde (Atriplex Patula L.) Ten Aanzien Van Suikerbiet-Herbiciden

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Gevoeligheid Van Uitstaande Melde (Atriplex Patula L.) Ten Aanzien Van Suikerbiet-Herbiciden Faculteit Bio-ingenieurswetenschappen Academiejaar 2015 – 2016 Gevoeligheid van uitstaande melde (Atriplex patula L.) ten aanzien van suikerbiet-herbiciden Anneleen Cardinael Promotor: Prof. dr. ir. Benny De Cauwer Tutor: ir. Sofie Claerhout Masterproef voorgedragen tot het behalen van de graad van Master in de bio-ingenieurswetenschappen: Landbouwkunde Faculteit Bio-ingenieurswetenschappen Academiejaar 2015 – 2016 Gevoeligheid van uitstaande melde (Atriplex patula L.) ten aanzien van suikerbiet-herbiciden Anneleen Cardinael Promotor: Prof. dr. ir. Benny De Cauwer Tutor: ir. Sofie Claerhout Masterproef voorgedragen tot het behalen van de graad van Master in de bio-ingenieurswetenschappen: Landbouwkunde De auteur en de promotor geven de toelating deze scriptie voor consultatie beschikbaar te stellen en delen ervan te kopiëren voor persoonlijk gebruik. Elk ander gebruik valt onder de beperkingen van het auteursrecht, in het bijzonder met betrekking tot de verplichting de bron te vermelden bij het aanhalen van resultaten uit deze scriptie. The author and the promotor give the permission to use this thesis for consultation and to copy parts of it for personal use. Any other use is subject to the copyright laws, more specifically the source must be extensively quoted when citing results from this thesis. Datum: Prof. dr. ir. Benny De Cauwer ir. Sofie Claerhout Anneleen Cardinael WOORD VOORAF Een eindwerk maken vormt de grote finale van mijn jarenlange opleiding tot bio-ingenieur landbouwkunde aan de Universiteit Gent. Het is een unieke kans om na vijf jaar studeren jouw verworven kennis en vaardigheden om te kunnen zetten in een eigen onderzoek. Deze masterproef zou niet mogelijk geweest zijn zonder de steun en hulp van een aantal mensen die ik graag zou willen bedanken. In de eerste plaats wil ik mijn promotor prof. dr. ir. Benny De Cauwer en mijn tutor ir. Sofie Claerhout uitgebreid bedanken. Hun grenzeloos enthousiasme en intensieve begeleiding tijdens het uitvoeren van het praktische luik was van onschatbare waarde. Door hun geduld en kritische geest tijdens het bespreken en nalezen heb ik deze masterproef kunnen kneden tot wat het nu is. Daarnaast wil ik ook de medewerkers op de Proefhoeve, Chris Bekaert, Nathalie Cornelis en Nina Biesemans, bedanken voor hun helpende hand om het praktisch werk tot een goed eind te brengen. Hun gezelschap tijdens het uitvoeren van de proeven maakten de zomermaanden op de Proehoeve een aangename periode voor mij. Een speciaal dankwoord gaat uit naar mijn zus Joselien voor haar aanmoedigingen en oneindig geloof in mijn kunnen. Ten slotte wil ik mijn ouders bedanken. Zij hebben mij gedurende zes jaar door dik en dun gesteund, zowel financieel als moreel, en alle kansen gegeven die ik volgens hen verdiende. Anneleen Cardinael, Gent, 30 mei 2016 INHOUDSOPGAVE INHOUDSOPGAVE ..................................................................................................................................... I LIJST VAN AFKORTINGEN ........................................................................................................................ III SAMENVATTING ..................................................................................................................................... IV 1. INLEIDING ............................................................................................................................................ 1 2. LITERATUURSTUDIE ............................................................................................................................. 3 2.1 Atriplex patula L. ........................................................................................................................... 3 2.1.1 Systematiek ............................................................................................................................ 3 2.1.2 Wereldwijd belang en verspreiding ....................................................................................... 6 2.1.3 Biologie ................................................................................................................................... 8 2.1.4 Ecologie ............................................................................................................................... 13 2.1.5 Morfologisch onderscheid met C. album en A. prostrata .................................................... 15 2.2 Atriplex patula in suikerbiet .................................................................................................. 17 2.2.1 Belang van A. patula in suikerbiet ................................................................................. 17 2.2.2 Competitiviteit van A. patula in suikerbiet ................................................................... 18 2.2.3 Geïntegreerde bestrijding van A. patula in suikerbiet .................................................. 19 2.2.4 Resistentieproblematiek in suikerbietpercelen ............................................................ 24 3. MATERIAAL EN METHODEN .............................................................................................................. 30 3.1 Materiaal ..................................................................................................................................... 30 3.1.1 Gebruikt substraat ................................................................................................................ 30 3.1.2 Gebruikte populaties ........................................................................................................... 30 3.2 Experimenten .............................................................................................................................. 31 3.2.1 Experiment 1 en 2: Herbicidengevoeligheid van A. patula en diens stadium-afhankelijkheid ....................................................................................................................................................... 31 3.2.2 Experiment 3: Gevoeligheid van A. patula voor verschillende FAR-schema’s .................... 37 4. RESULTATEN EN DISCUSSIE ............................................................................................................... 42 4.1 Resultaten.................................................................................................................................... 42 4.1.1 Experiment 1: Herbicidengevoeligheid van A. patula .......................................................... 42 4.1.2 Experiment 2: Stadiumafhankelijkheid van herbicidengevoeligheid ................................... 64 4.1.3 Experiment 3: Gevoeligheid van A. patula voor verschillende FAR-schema’s .................... 72 4.2 Discussie ...................................................................................................................................... 77 4.2.1 Experiment 1: Herbicidengevoeligheid van A. patula ......................................................... 77 4.2.2 Experiment 2: Stadiumafhankelijkheid van herbicidengevoeligheid .................................. 80 I 4.2.3 Experiment 3: Gevoeligheid van A. patula voor verschillende FAR-schema’s ..................... 82 5. BESLUIT .............................................................................................................................................. 84 6. REFERENTIES ...................................................................................................................................... 86 7. BIJLAGEN ........................................................................................................................................... 92 EXPERIMENT 1.1 ................................................................................................................................ 92 EXPERIMENT 1.2 ................................................................................................................................ 95 EXPERIMENT 2.1 ................................................................................................................................ 96 EXPERIMENT 2.2 ................................................................................................................................ 98 II LIJST VAN AFKORTINGEN ACCase acetyl-coenzyme A carboxylase ALS acetolactaatsynthase ANOVA analysis of variance (variantieanalyse) ATXPA Atriplex patula L. (EPPO code) a.s. actieve stof BBCH Biologische Bundesanstalt, Bundessortenamt und Chemische Industrie (BBCH-schaal) CHEAL Chenopodium album L. (EPPO code) ED50 effect dosage 50% (herbicidendosis vereist om de biomassa met 50% te reduceren) ED90 effect dosage 90% (herbicidendosis vereist om de biomassa met 90% te reduceren) EC emulgeerbaar concentraat HRAC Herbicide Resistance Action Committee POST post-emergence (na-opkomstbehandeling) PPI pre-plant incorporated (behandeling voor het zaaien) PRE pre-emergence (voor-opkomstbehandeling) PS II photosystem II (fotosysteem II) RV relatieve vochtigheid SC suspensieconcentraat SE suspo-emulsie SE standard error (standaardfout) SI selectiviteitsindex (ratio tussen EDx-dosissen van twee dosis-responscurves) sp. species (soort) subsp. subspecties (ondersoort) T temperatuur WSSA Weed Science Society of America III SAMENVATTING Belgische en Nederlandse suikerbietakkers worden de laatste jaren veelvuldig geconfronteerd met uitstaande melde (Atriplex patula L.), een uiterst competitief en thermofiel onkruid. Steeds vaker zijn er meldingen van onvolledig bestreden A. patula populaties. Hun uitbreiding in het veld wordt vaak
Load more

Recommended publications
  • The Vascular Plants of Massachusetts
    The Vascular Plants of Massachusetts: The Vascular Plants of Massachusetts: A County Checklist • First Revision Melissa Dow Cullina, Bryan Connolly, Bruce Sorrie and Paul Somers Somers Bruce Sorrie and Paul Connolly, Bryan Cullina, Melissa Dow Revision • First A County Checklist Plants of Massachusetts: Vascular The A County Checklist First Revision Melissa Dow Cullina, Bryan Connolly, Bruce Sorrie and Paul Somers Massachusetts Natural Heritage & Endangered Species Program Massachusetts Division of Fisheries and Wildlife Natural Heritage & Endangered Species Program The Natural Heritage & Endangered Species Program (NHESP), part of the Massachusetts Division of Fisheries and Wildlife, is one of the programs forming the Natural Heritage network. NHESP is responsible for the conservation and protection of hundreds of species that are not hunted, fished, trapped, or commercially harvested in the state. The Program's highest priority is protecting the 176 species of vertebrate and invertebrate animals and 259 species of native plants that are officially listed as Endangered, Threatened or of Special Concern in Massachusetts. Endangered species conservation in Massachusetts depends on you! A major source of funding for the protection of rare and endangered species comes from voluntary donations on state income tax forms. Contributions go to the Natural Heritage & Endangered Species Fund, which provides a portion of the operating budget for the Natural Heritage & Endangered Species Program. NHESP protects rare species through biological inventory,
    [Show full text]
  • Ours to Save: the Distribution, Status & Conservation Needs of Canada's Endemic Species
    Ours to Save The distribution, status & conservation needs of Canada’s endemic species June 4, 2020 Version 1.0 Ours to Save: The distribution, status & conservation needs of Canada’s endemic species Additional information and updates to the report can be found at the project website: natureconservancy.ca/ourstosave Suggested citation: Enns, Amie, Dan Kraus and Andrea Hebb. 2020. Ours to save: the distribution, status and conservation needs of Canada’s endemic species. NatureServe Canada and Nature Conservancy of Canada. Report prepared by Amie Enns (NatureServe Canada) and Dan Kraus (Nature Conservancy of Canada). Mapping and analysis by Andrea Hebb (Nature Conservancy of Canada). Cover photo credits (l-r): Wood Bison, canadianosprey, iNaturalist; Yukon Draba, Sean Blaney, iNaturalist; Salt Marsh Copper, Colin Jones, iNaturalist About NatureServe Canada A registered Canadian charity, NatureServe Canada and its network of Canadian Conservation Data Centres (CDCs) work together and with other government and non-government organizations to develop, manage, and distribute authoritative knowledge regarding Canada’s plants, animals, and ecosystems. NatureServe Canada and the Canadian CDCs are members of the international NatureServe Network, spanning over 80 CDCs in the Americas. NatureServe Canada is the Canadian affiliate of NatureServe, based in Arlington, Virginia, which provides scientific and technical support to the international network. About the Nature Conservancy of Canada The Nature Conservancy of Canada (NCC) works to protect our country’s most precious natural places. Proudly Canadian, we empower people to safeguard the lands and waters that sustain life. Since 1962, NCC and its partners have helped to protect 14 million hectares (35 million acres), coast to coast to coast.
    [Show full text]
  • An Illustrated Key to the Amaranthaceae of Alberta
    AN ILLUSTRATED KEY TO THE AMARANTHACEAE OF ALBERTA Compiled and writen by Lorna Allen & Linda Kershaw April 2019 © Linda J. Kershaw & Lorna Allen This key was compiled using informaton primarily from Moss (1983), Douglas et. al. (1998a [Amaranthaceae], 1998b [Chenopodiaceae]) and the Flora North America Associaton (2008). Taxonomy follows VASCAN (Brouillet, 2015). Please let us know if there are ways in which the key can be improved. The 2015 S-ranks of rare species (S1; S1S2; S2; S2S3; SU, according to ACIMS, 2015) are noted in superscript (S1;S2;SU) afer the species names. For more details go to the ACIMS web site. Similarly, exotc species are followed by a superscript X, XX if noxious and XXX if prohibited noxious (X; XX; XXX) according to the Alberta Weed Control Act (2016). AMARANTHACEAE Amaranth Family [includes Chenopodiaceae] Key to Genera 01a Flowers with spiny, dry, thin and translucent 1a (not green) bracts at the base; tepals dry, thin and translucent; separate ♂ and ♀ fowers on same the plant; annual herbs; fruits thin-walled (utricles), splitting open around the middle 2a (circumscissile) .............Amaranthus 01b Flowers without spiny, dry, thin, translucent bracts; tepals herbaceous or feshy, greenish; fowers various; annual or perennial, herbs or shrubs; fruits various, not splitting open around the middle ..........................02 02a Leaves scale-like, paired (opposite); stems feshy/succulent, with fowers sunk into stem; plants of saline habitats ... Salicornia rubra 3a ................. [Salicornia europaea] 02b Leaves well developed, not scale-like; stems not feshy; plants of various habitats. .03 03a Flower bracts tipped with spine or spine-like bristle; leaves spine-tipped, linear to awl- 5a shaped, usually not feshy; tepals winged from the lower surface ..............
    [Show full text]
  • The Use of Halophytes for Mediterranean Landscaping
    ® The European Journal of Plant Science and Biotechnology ©2011 Global Science Books The Use of Halophytes for Mediterranean Landscaping Carla Cassaniti* • Daniela Romano Department of Agriculture and Food Science, University of Catania, Via Valdisavoia 5, 95123, Catania, Italy Corresponding author : * [email protected] ABSTRACT A study was carried out to identify some halophytes that naturally grow in the Mediterranean area, which could be utilized for ornamental purposes. The current investigation, based also on previous literature, showed about 172 suitable species in 30 families and 86 botanical genera. The Chenopodiaceae was found to be the largest family with 34 species. Within the genera, the most represented were Limonium and Atriplex (17 and 14 species, respectively). The most common life form was the herbaceous perennial (49%), the hydrohalophyte the most widespread habitat (about 40%). The characteristic lack of showy flowers in most of these halophytes, suggests the opportunity of using them to provide green areas with aesthetic features. The tolerance to saline environments allows these plants to be used in landscape restoration. Prostrate species such as Carpobrotus edulis, Mesembryanthemum crystallinum and M. nodiflorum seem to be of particular value not only for the spectacular blooming but also for their utilization such as groundcover. Future studies should be carried out in order to improve halophyte use with appropriate protocols for cultivation. _____________________________________________________________________________________________________________ Keywords: plant selection, revegetation, salinity, sustainable landscape, xeriscape INTRODUCTION MATERIALS AND METHODS The use of native plants for green areas has been recently A plant list was created starting from the halophyte data base analyzed, in accordance with agronomical, political, social, reported by Aronson (1989) which counts more than 1560 species cultural and ecological needs (Hitchmough 2004).
    [Show full text]
  • Temperature Responses of the Rubisco Maximum Carboxylase Activity Across Domains of Life: Phylogenetic Signals, Trade-Offs, and Importance for Carbon Gain
    Galmés J, Kapralov MV, Copolovici LO, Hermida C, Niinemets Ü. Temperature responses of the Rubisco maximum carboxylase activity across domains of life: phylogenetic signals, trade-offs, and importance for carbon gain. Photosynthesis research 2015, 123, 183-201. Copyright: The final publication is available at Springer via https://doi.org/10.1007/s11120-014-0067-8 DOI link to article: https://doi.org/10.1007/s11120-014-0067-8 Date deposited: 03/11/2017 Embargo release date: 17 December 2015 This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License Newcastle University ePrints - eprint.ncl.ac.uk 1 Title: Temperature responses of the Rubisco maximum carboxylase activity across domains of 2 life: phylogenetic signals, trade-offs and importance for carbon gain 3 4 Authors: Galmés J1*, Kapralov MV2, Copolovici LO3, Hermida-Carrera C1, Niinemets Ü3,4 5 1Research Group in Plant Biology under Mediterranean Conditions, Department of Biology, 6 Universitat de les Illes Balears; Carretera de Valldemossa km 7.5; 07122 Palma, Illes Balears, 7 Spain 8 2Division of Plant Sciences, Research School of Biology, The Australian National University, 9 Canberra, Australian Capital Territory 0200, Australia 10 3Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 11 Kreutzwaldi 1, Tartu 51014, Estonia 12 4Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia 13 14 *Corresponding author: Jeroni Galmés 15 e-mail [email protected] / fax 34 / 971 / 173184 / tel 34 / 971 / 259720 16 Research Group in Plant Biology under Mediterranean Conditions, Department of Biology, 17 Universitat de les Illes Balears. Ctra. de Valldemossa km 7.5, 07122 Palma, Illes Balears, Spain.
    [Show full text]
  • Ours to Save the Distribution, Status & Conservation Needs of Canada’S Endemic Species
    Ours to Save The distribution, status & conservation needs of Canada’s endemic species June 4, 2020 Version 1.0 Ours to Save: The distribution, status & conservation needs of Canada’s endemic species Additional information and updates to the report can be found at the project website: natureconservancy.ca/ourstosave Suggested citation: Enns, Amie, Dan Kraus and Andrea Hebb. 2020. Ours to save: the distribution, status and conservation needs of Canada’s endemic species. NatureServe Canada and Nature Conservancy of Canada. Report prepared by Amie Enns (NatureServe Canada) and Dan Kraus (Nature Conservancy of Canada). Mapping and analysis by Andrea Hebb (Nature Conservancy of Canada). Cover photo credits (l-r): Wood Bison, canadianosprey, iNaturalist; Yukon Draba, Sean Blaney, iNaturalist; Salt Marsh Copper, Colin Jones, iNaturalist About NatureServe Canada A registered Canadian charity, NatureServe Canada and its network of Canadian Conservation Data Centres (CDCs) work together and with other government and non-government organizations to develop, manage, and distribute authoritative knowledge regarding Canada’s plants, animals, and ecosystems. NatureServe Canada and the Canadian CDCs are members of the international NatureServe Network, spanning over 80 CDCs in the Americas. NatureServe Canada is the Canadian affiliate of NatureServe, based in Arlington, Virginia, which provides scientific and technical support to the international network. About the Nature Conservancy of Canada The Nature Conservancy of Canada (NCC) works to protect our country’s most precious natural places. Proudly Canadian, we empower people to safeguard the lands and waters that sustain life. Since 1962, NCC and its partners have helped to protect 14 million hectares (35 million acres), coast to coast to coast.
    [Show full text]
  • Phylogenetic Distribution and Evolution of Mycorrhizas in Land Plants
    Mycorrhiza (2006) 16: 299–363 DOI 10.1007/s00572-005-0033-6 REVIEW B. Wang . Y.-L. Qiu Phylogenetic distribution and evolution of mycorrhizas in land plants Received: 22 June 2005 / Accepted: 15 December 2005 / Published online: 6 May 2006 # Springer-Verlag 2006 Abstract A survey of 659 papers mostly published since plants (Pirozynski and Malloch 1975; Malloch et al. 1980; 1987 was conducted to compile a checklist of mycorrhizal Harley and Harley 1987; Trappe 1987; Selosse and Le Tacon occurrence among 3,617 species (263 families) of land 1998;Readetal.2000; Brundrett 2002). Since Nägeli first plants. A plant phylogeny was then used to map the my- described them in 1842 (see Koide and Mosse 2004), only a corrhizal information to examine evolutionary patterns. Sev- few major surveys have been conducted on their phyloge- eral findings from this survey enhance our understanding of netic distribution in various groups of land plants either by the roles of mycorrhizas in the origin and subsequent diver- retrieving information from literature or through direct ob- sification of land plants. First, 80 and 92% of surveyed land servation (Trappe 1987; Harley and Harley 1987;Newman plant species and families are mycorrhizal. Second, arbus- and Reddell 1987). Trappe (1987) gathered information on cular mycorrhiza (AM) is the predominant and ancestral type the presence and absence of mycorrhizas in 6,507 species of of mycorrhiza in land plants. Its occurrence in a vast majority angiosperms investigated in previous studies and mapped the of land plants and early-diverging lineages of liverworts phylogenetic distribution of mycorrhizas using the classifi- suggests that the origin of AM probably coincided with the cation system by Cronquist (1981).
    [Show full text]
  • The Requirement for Sodium As a Micronutrient by Species Having the C4 Dicarboxylic Photosynthetic Pathway
    Plant Physiol. (1972) 49, 794-797 The Requirement for Sodium as a Micronutrient by Species Having the C4 Dicarboxylic Photosynthetic Pathway Received for publication September 28, 1971 P. F. BROWNELL AND C. J. CROSSLAND Department of Botany, James Cook University of North Queensland, Townsville, Queensland, Australia ABSTRACT MATERIALS AND METHODS Six species having characteristics of plants with the C4 di- Seeds of Echinochloa litilis L. Ohwi et Yabuno (Japanese carboxylic photosynthetic pathway, Echinochloa utilis L. Ohwi millet), Cynodon dactylon L. (Bermuda grass), Poa pratensis et Yabuno (Japanese millet), Cynodon dactylon L. (Bermuda L. (Kentucky blue grass). Ainaranthus tricolor L. cv. Early grass), Kyllinga brevifolia Rottb., Amaranthus tricolor L. cv. splendour, Kochia childsii Hort., and Portulaca grandiflora Early splendour, Kochia childsii Hort., and Portulaca grandi- Hook (rose moss) were obtained from commercial seed sup- flora Hook (rose moss), responded decisively to 0.1 mili- pliers. Seeds of Kyllinga brevifolia Rottb. were collected lo- equivalent per liter NaCl supplied to their culture solutions cally. The procedures for germination and growth of plants initially containing less than 0.08 microequivalent per liter Na. under conditions of low sodium have been described previously Chlorosis and necrosis occurred in leaves of plants not receiv- (2). The basal culture solution had the following composition ing sodium. Portulaca failed to set flower in the sodium-de- expressed in ftmoles/liter: KNO3, 5,000: Ca(NOj). 4,000; ficient cultures. Under similar conditions Poa pratensis L. (Kentucky blue grass) having characteristics of the C3 pho- Table I. Responises of Variouis Plaiits to Sodium tosynthetic pathway made normal growth and did not respond to the addition of sodium.
    [Show full text]
  • Checklist Appendix
    P a g e | 1 Appendix Species Excluded from the 2019 Newfoundland and Labrador Checklist This appendix includes species that have been reported from the Province, but have been excluded from the Vascular Plant Checklist of Newfoundland and Labrador for one or more reasons. Although these species may appear in other databases as occurring in the Province, such reports are unvalidated. If the species report was based on a misidentification, a reference to the correct species is listed. If no proof of a species occurrence in the Province was found, based on herbarium records, the report was considered unvalidated and placed in this Appendix, usually with no additional comment. If species included in this Appendix are subsequently discovered to occur outside of cultivation in the Province, they will be moved from the Appendix to the main part of the checklist. • Species reported erroneously from the Province of Newfoundland and Labrador, often due to a misapplication of the nomenclature. • Species reports based on misidentification of existing herbarium records. • Horticultural species that are not found naturally outside of cultivation; including species such as lilacs, that have persisted from deliberate plantings at abandoned homesteads, but which have not spread to new areas. • Ephemeral introductions, often introduced with garden soils from imported nursery stock or as contaminants in agricultural seed. Those introduced species do not persist in the NL flora Lycophytes: Quillworts & Clubmosses Isoetaceae / Isoetacées - Quillwort Family [n] Isoetes riparia Engelm. ex A.Braun En: shore quillwort, riverbank quillwort; Fr: isoète riparien. Temp. eNA, aq. Lycopodiaceae / Lycopodiacées - Clubmoss Family [n] Dendrolycopodium obscurum (L.) A.Haines En: flatbranch tree-clubmoss, common groundpine; Fr: lycopode obscur.
    [Show full text]
  • The Flora of Fair Isle
    The Flora of Fair Isle Camila Vaitea Quinteros Peñafiel 2016 Thesis submitted in partial fulfilment for the MSc in the Biodiversity and Taxonomy of Plants i Abstract Fair Isle, a small island located between Orkney and Shetland just off the northern tip of the British Isles has not enjoyed the same intensity of study of its biodiversity, in particular of the native flora, as other equally remote areas of the British Isles. This project involved surveying the entire flora of Fair Isle that comprises 19 monads (1km2), which were assessed through a qualitative floristic survey by recording the presence of plant species. This information enabled a comprehensive checklist of 238 species, classified into 27 orders, 59 families and 116 genera according to APG IV. Of the total number of species, 211 are native to the British Isles where 7 are considered under threat and 8 nationally scarce, the rest 27 are introduced species. A description was done for 9 different habitats that dominate the island. These were verified by the application of TWINSPAN and MAVIS which generated 16 NVC communities. It is hoped that the results found in this project emphasize the importance of Fair Isle regarding its flora, especially considering that it is home to 55% of the native species found on Shetland and that it has a wide range of plant communities, which are either missing or under serious threat in the British Isles. ii Acknowledgements The following people deserve special thanks for the support and company throughout the development of this thesis: My amazing supervisors Alex Twyford & Sally Eaton, of whom I feel very lucky to have and proud of the work that we have done together.
    [Show full text]
  • Maurice Jansen
    THE GENUS SCROBIPALPA IN THE NETHERLANDS (LEPIDOPTERA: GELECHIIDAE) Maurice Jansen The genus Scrobipalpa is a huge genus with about 70 species in Europe, 11 of which occur in The Netherlands. Half of the European species are more or less restricted to coastal or inland saline habitats. The Netherlands, with its many coastal salt marshes, harbours rich populations of various Scrobipalpa species, and provides ideal opportunities for studying their biology and taxonomy. Most species can only be reliably identified by the genitalia, because of the small differences between species and the great variability in wing pattern. Since the literature is difficult to access and incomplete, the Dutch species are here redescribed and illustrated and keys are provided for externals and genitalia. An overview of biology and ecology is given and maps show the distribution in The Netherlands. The genus Scrobipalpa Janse is one of the largest material and methods gelechiid genera in the Palaearctic region and comprises world-wide more than 200 species. A Distribution maps were compiled exclusively on large part of these species have been described by the basis of specimens examined. The different D. Povoln´y. However no outline, classification or symbols for periods before and since 1980, are to even a checklist has yet appeared. Although some distinguish old records. They do not infer any representatives are known from Africa and increase of the species, because recently more Australia, the genus is particularly rich in the attention has been paid to these moths. Maps Palaearctic region. A few species are recorded were compiled with the programmes orde and from North America but most of these are consi- eiskaart (Vorst & Fokker 1996, 1998).
    [Show full text]
  • The Ecology of the Great Bay Estuary, New Hampshire and Maine: an Estuarine Profile and Bibliography Frederick T
    University of New Hampshire University of New Hampshire Scholars' Repository Institute for the Study of Earth, Oceans, and Space PREP Reports & Publications (EOS) 10-10-1992 The ecology of the Great Bay Estuary, New Hampshire and Maine: An Estuarine Profile and Bibliography Frederick T. Short The Jackson Laboratory, [email protected] Follow this and additional works at: https://scholars.unh.edu/prep Recommended Citation Short, Frederick T., "The ce ology of the Great Bay Estuary, New Hampshire and Maine: An Estuarine Profile and Bibliography" (1992). PREP Reports & Publications. 376. https://scholars.unh.edu/prep/376 This Report is brought to you for free and open access by the Institute for the Study of Earth, Oceans, and Space (EOS) at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in PREP Reports & Publications by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact [email protected]. THE ECOLOGY OF THE GREAT BAY ESTUARY, NEW HAMPSHIRE AND MAINE: AN ESTUARINE PROFILE AND BIBLIOGRAPHY ~ Edited by Fredrick T. Short NOAA .bo Ne>\ ~/)/ovE: ESTUARINE RESERVES DIVISION University of Ne\'\r Hampshire 1305 Jackson Estuarine Laboratory EAST-WEST HIGHWAY N/ORMc SILVER SPRINGS, MD 20910 ' Durham, New Hampshire • This volume is dedicated to Dr. Galen E. Jones, former Director of the Jackson Estuarine Laboratory and retired Professor of Microbiology at the University of New Hampshire. Galen is a great supporter of marine and estuarine research and worked for years to establish the strong marine research program at the University of New Hampshire. Cover Photograph is an aerial view of the Great Bay Estuary, with Dover Point and the Piscataqua River in the foreground, looking across Little Bay to Great Bay.
    [Show full text]