DOCSLIB.ORG

Here to Stay. Recent Advances and Perspectives About Acacia Invasion in Mediterranean Areas Pablo Souza-Alonso, Jonatan Rodríguez, Luís González, Paula Lorenzo

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Here to Stay. Recent Advances and Perspectives About Acacia Invasion in Mediterranean Areas Pablo Souza-Alonso, Jonatan Rodríguez, Luís González, Paula Lorenzo Here to stay. Recent advances and perspectives about Acacia invasion in Mediterranean areas Pablo Souza-Alonso, Jonatan Rodríguez, Luís González, Paula Lorenzo To cite this version: Pablo Souza-Alonso, Jonatan Rodríguez, Luís González, Paula Lorenzo. Here to stay. Recent advances and perspectives about Acacia invasion in Mediterranean areas. Annals of Forest Science, Springer Nature (since 2011)/EDP Science (until 2010), 2017, 74 (3), pp.55. 10.1007/s13595-017-0651-0. hal-02976549 HAL Id: hal-02976549 https://hal.archives-ouvertes.fr/hal-02976549 Submitted on 23 Oct 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Annals of Forest Science (2017) 74: 55 DOI 10.1007/s13595-017-0651-0 REVIEW PAPER Here to stay. Recent advances and perspectives about Acacia invasion in Mediterranean areas Pablo Souza-Alonso1 & Jonatan Rodríguez1 & Luís González1 & Paula Lorenzo2 Received: 30 August 2016 /Accepted: 12 June 2017 /Published online: 12 July 2017 # INRA and Springer-Verlag France SAS 2017 Abstract worldwide. In fact, almost 500 papers have been published on • Key message The above- and belowground impacts due several aspects of Acacia invasions for the last 25 years. to Acacia invasions have been described in detail over the • Aims We aim at reviewing the current knowledge on the last 25 years. Future research should focus on the early consequences of the invasion by Acacia genus in detection and prevention of new Acacia introductions and Mediterranean ecosystems. We also collect and propose dif- on a cost-effective and sustainable management of the nov- ferent approaches for the management and recovery of invad- el ecosystems resulting from invasions. ed areas and suggest future perspectives on Acacia research. • Context Invasive alien plants (IAPs) strongly alter ecosys- • Methods We compile, summarise and discuss recent find- tems reducing biodiversity, modifying ecosystem services and ings on physicochemical, ecological, microbiological and so- increasing negative impacts at social and economic level. cioeconomic aspects of invasion related to Australian acacias Among invasive taxa, Acacia is a highly problematic genus (Acacia dealbata, Acacia longifolia, Acacia mearnsii, Acacia saligna and Acacia melanoxylon) focusing on Mediterranean Handling Editor: Andreas Bolte areas. • Contribution of the co-authors Pablo Souza-Alonso: conceived the Results Acacia invasion generally entails soil physicochem- paper, obtained information, coordinate the review, wrote the first draft ical alterations and changes in microbial function and struc- and edited the manuscript. ture. Consequences such as the decreased biodiversity, altered Paula Lorenzo: obtained information, wrote different sections and ecosystem structure, larger seed banks dominated by invasive contributed to correct and organise the manuscript. Jonatan Rodríguez: obtained information and contributed to correct species, new biotrophic relationships or alterations in water different sections. availability and fire regimes suggest that acacias are locally Luís González: contributed to correct and organise the manuscript. creating novel ecosystems. • Conclusions Forecasting invasions, modelling and manag- * Pablo Souza-Alonso ing ecosystems dominated by acacias are challenging tasks [email protected] that should be addressed in the future, since climatic condi- tions and intensification in land uses are increasing the likeli- Jonatan Rodríguez [email protected] hood of Acacia invasions in Mediterranean areas. Unsuccessful management actions suggest that restoration Luís González should be meticulously monitored, but the magnitude of inva- [email protected] sion or the inconsistency of economic investment indicate that Paula Lorenzo eradication is often unfeasible. Alternatively, novel integrative [email protected] and cost-effective solutions including the collaboration of so- ciety, politicians and stakeholders are necessary to prevent 1 Plant Biology and Soil Science Department, University of Vigo, 36310 Vigo, Spain new introductions and achieve sustainable control of acacias. Thereisagrowinginterestinappliedresearchonthe 2 Centro de Ecologia Funcional - CEF, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade de Coimbra, valorisation or novel uses for acacias and their residues that 3000-456 Coimbra, Portugal result in economic benefits. 55 Page 2 of 20 Annals of Forest Science (2017) 74: 55 Keywords Invasive alien plants . Biodiversity . Ecosystem Echeverría 2015). Acacia sensu lato is a cosmopolitan genus changes . Seed production . Soil microorganisms . Acacia with polyphyletic origin, but in this paper, we exclusively management focusontheAustralianAcaciasubgenusPhyllodineae - Acacia s.s.- (Kyalangalilwa et al. 2013) due to their invasive- ness. The movement of acacias to other continents began in 1 Introduction the late 1700s (Carruthers et al. 2011), but unprecedented dispersal rates have occurred in the latest two centuries. Humans induce rapid changes to the environment, including Albeit Australian acacias are now occurring worldwide, they the alteration of major biogeochemical cycles, land surface are more frequently invasive in Mediterranean areas (Fig. 1). transformation, changed atmospheric composition and evolu- Studies on Acacia invasions were compiled in a special issue tion patterns. Such changes are currently taking place at un- covering not only biological and ecological but also social, precedented rates in the period recently defined as the economic and ethical perspectives (human-mediated introduc- Anthropocene (Steffen et al. 2007; Lewis and Maslin 2015). tions of Australian acacias—a global experiment in biogeog- Numerous human activities act as driving forces of environ- raphy, Diversity and Distributions 2011). At the same time, mental change by removing physical, biotic and geographical Lorenzo et al. (2010a) published a review mainly focused on barriers that facilitate plant species movement, which is a main hypotheses explaining the invasive success of Acacia risk factor for biodiversity. Invasive alien plants (IAPs), de- dealbata in Europe. These authors suggest that A. dealbata fined as plant species producing large reproductive progeny not only takes advantage from environmental disturbances, that spread over considerable distances from parent plants but also possesses high clonal growth and allelopathic ability (Richardson et al. 2000a), are currently a priority research that reduce native biodiversity in the understory. However, objective of the European Commission (EC Regulation due to the increasing number of studies recently conducted 1143/2014). in Mediterranean areas (see also Fig. 1), we consider that an Along the wide range of genera containing species classi- update of the current knowledge on the consequences of fied as invaders, Acacia is one of the most controversial and Acacia invasion at these regions is required. Here, our objec- studied genus across the world (Murphy 2008). Currently, 24 tive is to not only summarise recent findings (including bio- Acacia species are confirmed as invasive worldwide logical, ecological, physicochemical, microbiological or so- (Richardson and Rejmánek 2011; Lorenzo and Rodríguez- cioeconomic aspects of invasion) but also to complement 2016-2011 2010-2005 2004-1999 1999-1980 Europe 2016-2011 2010-2005 2004-1999 1999-1980 Asia 2016-2011 2010-2005 2004-1999 1999-1980 No published papers 1-3 papers Africa 3-5 papers 5-10 papers 10-20 papers 20-30 papers > 30papers 2016-2011 2010-2005 2004-1999 1999-1980 South America 2016-2011 2010-2005 2004-1999 1999-1980 Chile 2016-2011 2010-2005 2004-1999 1999-1980 2016-2011 2010-2005 2004-1999 1999-1980 South Africa Australia and N.Zealand Regions with Mediterranean-typeclimate Fig. 1 Scheme representing the number of papers including highly invas* (TITLE-ABS-KEY)+ and “Acacia dealbata” or “Acacia invasive acacias considered: Acacia dealbata, A. longifolia, A. longifolia” or “Acacia saligna” or “Acacia melanoxylon” or “Acacia mearnsii, A. saligna and A. melanoxylon, through different areas across mearnsii”. Systematical reviews on the Acacia invasive process were the world. Map is created based on information (n = 214 manuscripts) not included unless they were strictly focused on a specific area. Note after the search in SCOPUS by using the key terms Acacia and plant and the different scale for the last interval (1999–1980) Annals of Forest Science (2017) 74: 55 Page 3 of 20 55 and extend previous information related to the most problem- variables and socioeconomic circumstances (Tassin et al. atic acacias in Mediterranean areas. We also discuss future 2009a;Kulletal.2011, 2007). In many countries, large parts perspectives on research, management and recovery of invad- of the population have positive perceptions about invasive ed areas. acacias that are largely cultivated with profitable uses such as construction materials, heat source or medicinal com- 1.1 Major problematic acacia species, introduction pounds for rural communities (de Neergaard
Load more

Recommended publications
  • 01 Innerfrontcover40 2.Indd 1 8/27/2010 2:27:58 PM BOTHALIA
    ISSN 0006 8241 = Bothalia Bothalia A JOURNAL OF BOTANICAL RESEARCH Vol. 40,2 Oct. 2010 TECHNICAL PUBLICATIONS OF THE SOUTH AFRICAN NATIONAL BIODIVERSITY INSTITUTE PRETORIA Obtainable from the South African National Biodiversity Institute (SANBI), Private Bag X101, Pretoria 0001, Republic of South Africa. A catalogue of all available publications will be issued on request. BOTHALIA Bothalia is named in honour of General Louis Botha, first Premier and Minister of Agriculture of the Union of South Africa. This house journal of the South African National Biodiversity Institute, Pretoria, is devoted to the furtherance of botanical science. The main fields covered are taxonomy, ecology, anatomy and cytology. Two parts of the journal and an index to contents, authors and subjects are published annually. Three booklets of the contents (a) to Vols 1–20, (b) to Vols 21–25, (c) to Vols 26–30, and (d) to Vols 31–37 (2001– 2007) are available. STRELITZIA A series of occasional publications on southern African flora and vegetation, replacing Memoirs of the Botanical Survey of South Africa and Annals of Kirstenbosch Botanic Gardens. MEMOIRS OF THE BOTANICAL SURVEY OF SOUTH AFRICA The memoirs are individual treatises usually of an ecological nature, but sometimes dealing with taxonomy or economic botany. Published: Nos 1–63 (many out of print). Discontinued after No. 63. ANNALS OF KIRSTENBOSCH BOTANIC GARDENS A series devoted to the publication of monographs and major works on southern African flora.Published: Vols 14–19 (earlier volumes published as supplementary volumes to the Journal of South African Botany). Discontinued after Vol. 19. FLOWERING PLANTS OF AFRICA (FPA) This serial presents colour plates of African plants with accompanying text.
    [Show full text]
  • 11Th Flora Malesina Symposium, Brunei Darussalm, 30 June 5 July 2019 1
    11TH FLORA MALESINA SYMPOSIUM, BRUNEI DARUSSALM, 30 JUNE 5 JULY 2019 1 Welcome message The Universiti Brunei Darussalam is honoured to host the 11th International Flora Malesiana Symposium. On behalf of the organizing committee it is my pleasure to welcome you to Brunei Darussalam. The Flora Malesiana Symposium is a fantastic opportunity to engage in discussion and sharing information and experience in the field of taxonomy, ecology and conservation. This is the first time that a Flora Malesiana Symposium is organized in Brunei Darissalam and in the entire island of Borneo. At the center of the Malesian archipelago the island of Borneo magnifies the megadiversity of this region with its richness in plant and animal species. Moreover, the symposium will be an opportunity to inspire and engage the young generation of taxonomists, ecologists and conservationists who are attending it. They will be able to interact with senior researchers and get inspired with new ideas and develop further collaboration. In a phase of Biodiversity crisis, it is pivotal the understanding of plant diversity their ecology in order to have a tangible and successful result in the conservation action. I would like to thank the Vice Chancellor of UBD for supporting the symposium. In the last 6 months the organizing committee has worked very hard for making the symposium possible, to them goes my special thanks. I would like to extend my thanks to all the delegates and the keynote speakers who will make this event a memorable symposium. Dr Daniele Cicuzza Chairperson of the 11th International Flora Malesiana Symposium UBD, Brunei Darussalam 11TH FLORA MALESINA SYMPOSIUM, BRUNEI DARUSSALM, 30 JUNE 5 JULY 2019 2 Organizing Committee Adviser Media and publicity Dr.
    [Show full text]
  • From Trees to Molecules : the Invasive Process of Acacia Dealbata Link At
    From trees to molecules. The invasive process of Acacia dealbata Link at different scales Memoria de Tesis Doctoral presentada por el Licenciado Pablo Souza Alonso From trees to molecules, invasive process of Acacia dealbata Link at different scales La realización de esta tesis doctoral ha sido posible gracias a la concesión de una beca de 3er ciclo y posteriormente a un contrato predoctoral financiados por la Universidade de Vigo. Vigo, Noviembre de 2014 Edited by Pablo Souza Alonso Printing: Agradecimientos Más de 175 páginas, 60.000 palabras, 400.000 caracteres. Después de todo este trabajo, cualquiera diría que esta es la parte más fácil de escribir dentro de un proceso tan largo como es la redacción de una tesis doctoral. Error. Siendo muy fácil agradecer a la gente implicada su ayuda durante estos años, se me hace frustrante pensar que me dejo a alguien por el camino. Todos, de un modo u otro, en mayor o menor medida, me habéis marcado y tenéis vuestra parte de “culpa” en este trabajo. En un esfuerzo de memoria, intentaré en tres páginas recordaros a todos los que en algún momento os habéis cruzado en mi camino. Tengo que empezar, sin duda por mi familia. Sin vosotros no estaría aquí y no me equivoco si digo que pocos pueden estar tan agradecidos por tanto apoyo incansable, sin dudas desde el primer día. A Oli, por tu cariño, tu aliento diario, por tu confianza ciega, la tienes aún cuando a mí me falla. Esas horas interminables delante del ordenador, la paciencia durante esos fines de semana que había que subir a trabajar..
    [Show full text]
  • A.8 Terrestrial Fauna Surveys
    Level 1 Vertebrate Fauna Assessment for the Sandy Ridge Project Version 4. July 2016 Prepared for: Tellus Holdings Ltd Suite 2 Level 10 151 Castlereagh St Sydney, NSW 2000 By: Terrestrial Ecosystems 10 Houston Place Mt Claremont WA 6010 i RECORD OF DISTRIBUTION No. of copies Report File Name Report Status Date Prepared for: Initials Electronic 2015-0012-002-st-V1 Draft 18 May 2015 Aurora Environmental ST Electronic 2015-0012-002-st-V1 Draft 18 May 2015 Tellus Holdings Ltd ST Electronic 2015-0012-002-st-V2 Draft 8 June 2015 Aurora Environmental ST Electronic 2015-0012-002-st-V2 Draft 8 June 2015 Tellus Holdings Ltd ST Electronic 2015-0012-002-st-V3 Draft 8 June 2015 Aurora Environmental ST Electronic 2015-0012-002-st-V3 Draft 8 June 2015 Tellus Holdings Ltd ST Electronic 2015-0012-002-st-V4 Final 21 July 2016 Tellus Holdings Ltd ST DISCLAIMER This document is prepared in accordance with and subject to an agreement between Terrestrial Ecosystems and the client, Tellus Holdings Limited. It has been prepared and is restricted to those issues that have been raised by the client in its engagement of Terrestrial Ecosystems and prepared using the standard of skill and care ordinarily exercised by environmental scientists in the preparation of such reports. Persons or agencies that rely on or use this document for purposes or reasons other than those agreed by Terrestrial Ecosystems and its client without first obtaining prior consent, do so at their own risk and Terrestrial Ecosystems denies all liability in tort, contract or otherwise for any loss, damage or injury of any kind whatsoever (whether in negligence or otherwise) that may be suffered as a consequence.
    [Show full text]
  • Upper Yilgarn Catchment Appraisal 2005
    Research Library Resource management technical reports Natural resources research 2005 Upper Yilgarn catchment appraisal 2005 Keith Ohlsen Susan Murphy-White Follow this and additional works at: https://researchlibrary.agric.wa.gov.au/rmtr Part of the Agriculture Commons, Natural Resources Management and Policy Commons, Soil Science Commons, and the Water Resource Management Commons Recommended Citation Ohlsen, K, and Murphy-White, S. (2005), Upper Yilgarn catchment appraisal 2005. Department of Primary Industries and Regional Development, Western Australia, Perth. Report 292. This report is brought to you for free and open access by the Natural resources research at Research Library. It has been accepted for inclusion in Resource management technical reports by an authorized administrator of Research Library. For more information, please contact [email protected]. ISSN 1039-7205 Resource Management Technical Report 292 Upper Yilgarn Catchment Appraisal 2005 Compiled by Keith N. Ohlsen and Susie Murphy White for the Central Agricultural Region RCA Team April 2005 DISCLAIMER: While all reasonable care has been taken in the preparation of the material in this document, the Western Australian Government and its officers accept no responsibility for any errors or omissions it may contain, whether caused by negligence, or otherwise or for any loss, however caused, sustained by any person who relies on it. ¤ State of Western Australia, 2005 TABLE OF CONTENTS Page SUMMARY ....................................................................................................................
    [Show full text]
  • Acacia Lobulata) RECOVERY PLAN
    Chiddarcooping Wattle (Acacia lobulata) RECOVERY PLAN Department of Environment and Conservation Yilgarn District Office, Wheatbelt Region 1 Recovery Plan for Acacia lobulata FOREWORD Interim Recovery Plans (IRPs) are developed within the framework laid down in Department of Conservation and Land Management (CALM) Policy Statements Nos. 44 and 50. Note: the Department of CALM formally became the Department of Environment and Conservation (DEC) in July 2006. DEC will continue to adhere to these Policy Statements until they are revised and reissued. IRP’s outline the recovery actions that are required to urgently address those threatening processes most affecting the ongoing survival of threatened taxa or ecological communities, and begin the recovery process. DEC is committed to ensuring that Threatened taxa are conserved through the preparation and implementation of Recovery Plans (RPs) or IRPs, and by ensuring that conservation action commences as soon as possible and, in the case of Critically Endangered (CR) taxa, always within one year of endorsement of that rank by the Minister. This Interim Recovery Plan will operate from February 2008 to January 2013 but will remain in force until withdrawn or replaced. It is intended that, if the taxon is still ranked Critically Endangered, this IRP will be reviewed after five years and the need for a full Recovery Plan assessed. This IRP was given regional approval on 17 January 2008 and approved by the Director of Nature Conservation on 6 February 2008. The allocation of staff time and provision of funds identified in this Interim Recovery Plan is dependent on budgetary and other constraints affecting DEC, as well as the need to address other priorities.
    [Show full text]
  • Southern Cross Goldfields Ltd Level 1 Fauna Assessment
    SOUTHERN CROSS GOLDFIELDS LTD LEVEL 1 FAUNA ASSESSMENT August 2014 Level 1 Fauna Assessment FOR THE MARDA EAST PROJECT Tenements R 77/1, R 77/2, L 77/261 Marda East Level 1 Fauna Assessment Southern Cross Goldfields Ltd P a g e | ii SXG001 – Southern Cross Goldfields Limited - Level 1 Fauna Assessment of the Marda East Project This report was completed by: Animal Plant Mineral Pty Ltd ABN: 86 886 455 949 Tel: (08) 6296 5155 Fax: (08) 6296 5199 Address : 68 Westgrove Drive, Ellenbrook, Western Australia, 6069 Website: www.animalplantmineral.com.au For further information on this report please contact: Dr Mitchell Ladyman Tel: 0437 307 008 Email: [email protected] Disclaimer This document is protected by legal professional privilege. To ensure privilege is not waived, please keep this document confidential and in a safe and secure place. This document should not be distributed to, nor any reference to it made to any person or organization not directly involved in making decisions upon the subject matter of this document. If this document is requested by a third party, legal advice should be immediately obtained prior to that person viewing or taking the document to ensure that any necessary disclosure occurs in an appropriate manner. Marda East Level 1 Fauna Assessment Southern Cross Goldfields Ltd P a g e | iii EXECUTIVE SUMMARY Southern Cross Goldfields Limited is developing the Marda East Project, located approximately 140 km north of Southern Cross. The Project includes two ore deposits, Red Legs and Fiddleback which are approximately 3.5 km apart and joined by a proposed haul route which crosses the Bulfinch-Evanstone Road.
    [Show full text]
  • Consequences of Self-Fertilisation for Fecundity
    CONSEQUENCES OF SELF-FERTILISATION FOR FECUNDITY AND PROGENY PERFORMANCE IN INVASIVE PLANTS JAMES GORDON RODGER Submitted in fulfilment of the academic requirements for the degree of DOCTOR OF PHILOSOPHY School of Biological and Conservation Sciences Faculty of Science and Agriculture University of KwaZulu-Natal Pietermaritzburg 2011 FOR MY PARENTS The Lily The modest Rose puts forth a thorn, The humble sheep a threat'ning horn: While the Lily white shall in love delight, Nor a thorn nor a threat stain her beauty bright. William Blake ABSTRACT Plants that can self-fertilise should, on average, be more invasive than plants that can not self- fertilise because they can reproduce regardless of the availability of mates and pollinators. Self-fertilisation should have a strong effect on invasiveness because, to become invasive, introduced plants have to pass through bottlenecks of low plant abundance when mates and pollinators are likely to be scarce. Under these conditions, reproduction of plants that can not self-fertilise is often limited by pollen receipt. Selfing may thus contribute to invasiveness by alleviating pollen limitation Allee effects (pollen limitation caused by low abundance) especially as theoretical work indicates that ability to invade and rate of invasion are highly sensitive to fecundity of small and isolated populations and single individuals. Recently, a correlation between ability to self-fertilise and invasiveness has been observed in several invasive floras, consistent with the hypothesis that species that can self- fertilise should be more invasive. However, it has not yet been demonstrated that this relationship arises from reproductive assurance. To establish the causal basis of a correlation between a plant trait and invasiveness, a mechanism linking that trait to invasiveness must be demonstrated.
    [Show full text]
  • Avon, Western Australia
    Biodiversity Summary for NRM Regions Guide to Users Background What is the summary for and where does it come from? This summary has been produced by the Department of Sustainability, Environment, Water, Population and Communities (SEWPC) for the Natural Resource Management Spatial Information System. It highlights important elements of the biodiversity of the region in two ways: • Listing species which may be significant for management because they are found only in the region, mainly in the region, or they have a conservation status such as endangered or vulnerable. • Comparing the region to other parts of Australia in terms of the composition and distribution of its species, to suggest components of its biodiversity which may be nationally significant. The summary was produced using the Australian Natural Natural Heritage Heritage Assessment Assessment Tool Tool (ANHAT), which analyses data from a range of plant and animal surveys and collections from across Australia to automatically generate a report for each NRM region. Data sources (Appendix 2) include national and state herbaria, museums, state governments, CSIRO, Birds Australia and a range of surveys conducted by or for DEWHA. Limitations • ANHAT currently contains information on the distribution of over 30,000 Australian taxa. This includes all mammals, birds, reptiles, frogs and fish, 137 families of vascular plants (over 15,000 species) and a range of invertebrate groups. The list of families covered in ANHAT is shown in Appendix 1. Groups notnot yet yet covered covered in inANHAT ANHAT are are not not included included in the in the summary. • The data used for this summary come from authoritative sources, but they are not perfect.
    [Show full text]
  • Rarity and Threat in Relation to the Conservation of Acacia in Western Australia
    36 Conservation Science W. Aust.Marcelle 4 (3) : 36–53 L. Buist (2002) et al Rarity and threat in relation to the conservation of Acacia in Western Australia MARCELLE L. BUIST1,2*, DAVID J. COATES1 AND COLIN J. YATES1 1 Science Division, Department of Conservation and Land Management, Locked Bag 104, Bentley Delivery Centre, Western Australia 6983; email [email protected] 2 Department of Soil Science and Plant Nutrition, School of Earth and Geographical Sciences, University of Western Australia, Nedlands, Western Australia 6907 (*corresponding author) SUMMARY The genus Acacia provides clear illustrations of both the floristic diversity of Western Australia (with nearly 800 of the 1200 known taxa found in the State) and the critical conservation status of a significant component of the flora. Twenty-six percent of acacias in W.A. are either listed as threatened (Declared Rare Flora) or rare and poorly known (Priority Flora). This paper explores rarity and threat in relation to the conservation of Acacia in W.A. Rarity is ascertained using the three components of geographical range, habitat specificity and abundance. The factors which then pose immediate threats to survival of the taxon are identified to determine the likelihood of population persistence and further priorities for conservation. The threats include invasive flora and fauna, inappropriate fire regimes, habitat destruction associated with clearing activities, alteration of hydroecology, and demographic and genetic effects associated with small declining populations. These threats are also identified to impact on the persistence of rare acacia taxa. Understanding the ecological and genetic consequences of rarity in terms of low numbers of small, often fragmented populations can provide vital clues to the development of management actions and conservation strategies for rare and threatened species.
    [Show full text]
  • Avon Natural Resource Management Strategy 2005
    AVON NATURAL RESOURCE MANAGEMENT STRATEGY 2005 Avon Catchment Council PO Box 311 Northam WA 6401 www.avonicm.org.au THE AVON NRM STRATEGY THE REGIONAL NATURAL RESOURCE MANAGEMENT STRATEGY FOR THE AVON RIVER BASIN The Avon Natural Resource Management Strategy The Regional Natural Resource Management Strategy for the Avon River Basin May 2005 Copyright Statement This document may be reproduced in whole or in part for the purpose of education, training or implementation of the Strategy, subject to the inclusion of an acknowledgement of source and to its not being used for commercial purposes or sale. Reproduction for other purposes requires the prior written consent of the Avon Catchment Council. © Avon Catchment Council (Incorporated), 2005 Disclaimer This Strategy is based on existing information and will be subject to change as new information becomes available. Whilst this Strategy has been prepared with diligence and every effort made to ensure that the information contained herein is accurate and representative, readers cannot rely on this information as a substitute for legal advice. Further, the Avon Catchment Council disclaims any liability from error, loss or other consequence that may arise from reliance on any information or materials contained in this document. Before acting on any matter, take advice from a qualified legal practitioner or other appropriate professionals. Front Cover Design by Rosemary Arkeveld Cover photographs (left to right): Grain courtesy of Skye Arkeveld; Dead trees courtesy of Mike Griffiths; Gastrolobium sp. courtesy of Mick Davis; Aerial view courtesy of Richard Waldendorp. Reference Details The recommended reference for this publication is: Avon Catchment Council (2005).
    [Show full text]
  • Recovery Plan
    Wundowlin Wattle (Acacia sciophanes) RECOVERY PLAN Department of Environment and Conservation Kensington Recovery Plan for Acacia sciophanes FOREWORD Interim Recovery Plans (IRPs) are developed within the framework laid down in Department of Conservation and Land Management (CALM) Policy Statements Nos. 44 and 50. Note: the Department of CALM formally became the Department of Environment and Conservation (DEC) in July 2006. DEC will continue to adhere to these Policy Statements until they are revised and reissued. IRPs outline the recovery actions that are required to urgently address those threatening processes most affecting the ongoing survival of threatened taxa or ecological communities, and begin the recovery process. DEC is committed to ensuring that threatened taxa are conserved through the preparation and implementation of Recovery Plans (RPs) or IRPs, and by ensuring that conservation action commences as soon as possible and, in the case of Critically Endangered (CR) taxa, always within one year of endorsement of that rank by the Minister. This IRP, which results from a review of, and replaces, IRP No.77 Acacia sciophanes (Evans et al. 2000), will operate from April 2008 to March 2013 but will remain in force until withdrawn or replaced. It is intended that, if the taxon is still ranked CR, this IRP will be reviewed after five years and the need for further recovery actions assessed. This IRP was approved by the Director of Nature Conservation on the 30 April 2008. The allocation of staff time and provision of funds identified in this IRP is dependent on budgetary and other constraints affecting DEC, as well as the need to address other priorities.
    [Show full text]