DOCSLIB.ORG

The Apple Snail, Pomacea Canaliculata: an Evidence Note on Invasiveness and Potential

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
The Apple Snail, Pomacea Canaliculata: an Evidence Note on Invasiveness and Potential 21 The apple snail, Pomacea canaliculata: an evidence note on invasiveness and potential CABI WORKING PAPER CABI WORKING economic impacts for East Africa Authors Djamila Djeddour Corin Pratt Fernadis Makale Ivan Rwomushana May 2021 Roger Day KNOWLEDGE FOR LIFE The copyright holder of this work is CAB International (trading as CABI). It is made available under a Creative Commons Attribution-Non-commercial Licence (CC BY-NC). For further details please refer to http://creativecommons.org/license. This paper was prepared as part of the Action on Invasives and Plantwise Plus programmes. Action on Invasives is supported by the UK Foreign, Commonwealth and Development Office (FCDO) and the Netherlands Directorate General for International Cooperation (DGIS). Plantwise Plus, in addition to FCDO and DGIS, is also funded by European Commission Directorate-General for International Cooperation and Development (DEVCO) and Swiss Agency for Development and Cooperation (SDC). We thank the survey respondents, including those whose partial responses have been quoted with their permission. CABI is an international intergovernmental organization, and we gratefully acknowledge the core financial support from our member countries (and lead agencies) including the UK (FCDO), China (Chinese Ministry of Agriculture and Rural Affairs), Australia (Australian Centre for International Agricultural Research), Canada (Agriculture and Agri-Food Canada), the Netherlands (DGIS) and Switzerland (Swiss Agency for Development and Cooperation). See http://www.cabi.org/about-cabi/who-we-work-with/key-donors/ for full details. This CABI Working Paper was internally and externally peer-reviewed. It may be referred to as: Djeddour, D., Pratt, C., Makale, F., Rwomushana, I. and Day, R. (2021) The apple snail, Pomacea canaliculata: an evidence note on invasiveness and potential economic impacts for East Africa. CABI Working Paper 21, 77 pp. https://dx.doi.org/10.1079/CABICOMM-62-8149 Djamila Djeddour, CABI UK, Bakeham Lane, Egham, Surrey, TW20 9TY, United Kingdom. Email: [email protected]; ORCID: https://orcid.org/0000-0002-1421-4101 Corin Pratt, CABI, CABI UK, Bakeham Lane, Egham, Surrey, TW20 9TY, United Kingdom. Email: [email protected]; ORCID: https://orcid.org/0000-0001-8070-7302 Fernadis Makale, CABI, Canary Bird, 673 Limuru Road, Muthaiga, PO Box 633-00621, Nairobi, Kenya. Email: [email protected]; ORCID: https://orcid.org/0000-0002-6454-7705 Ivan Rwomushana, CABI, Canary Bird, 673 Limuru Road, Muthaiga, PO Box 633-00621, Nairobi, Kenya. Email: [email protected]; ORCID: https://orcid.org/0000-0001-5840- 8058 Roger Day, CABI, Canary Bird, Muthaiga, PO Box 633-00621 Nairobi, Kenya. Email: [email protected]; ORCID: https://orcid.org/0000-0002-4854-7609 Cover photo: Pomacea canaliculata feeding on rice plants, Mwea Irrigation Scheme, Kenya. Credit: Fernadis Makale, CABI. 1 Contents Contents ........................................................................................................................ 2 Abstract................................................................................................................................. 3 Executive summary ............................................................................................................... 4 Acronyms and abbreviations ................................................................................................. 9 Introduction ......................................................................................................................... 10 1 Rice cultivation and the apple snail problem..................................................................... 11 1.1 History of rice production and trends in Africa ....................................................... 11 1.2 Biology and identification of invasive Pomacea species ........................................ 14 1.3 Invasive apple snail spread around the world ........................................................ 16 1.4 Invasive apple snail host range and general impacts ............................................. 18 1.5 Invasive apple snail impact on human health ........................................................ 20 1.6 Current spread and distribution of invasive apple snail in Africa ............................ 21 1.7 Modelling the distribution of invasive apple snail ................................................... 23 1.8 Environmental suitability for invasive apple snail colonization ................................ 25 2 Impacts of apple snail on rice and other socio-economic variables .................................. 26 2.1 Documented global impacts .................................................................................. 26 2.2 Prediction of economic and yield loss due to invasive apple snail in East Africa .... 28 2.3 Potential impacts of invasive apple snail on trade .................................................. 33 3 Control methods ............................................................................................................... 33 3.1 Chemical control .................................................................................................... 34 3.2 Microbial pesticides ............................................................................................... 36 3.3 Botanicals .............................................................................................................. 36 3.4 Resistant varieties ................................................................................................. 37 3.5 Biological control ................................................................................................... 37 3.6 Good agricultural practice ...................................................................................... 39 3.7 Integrated pest management (IPM) ....................................................................... 41 4 Advice, information and communication ........................................................................... 51 4.1 Sources of information on apple snail control ........................................................ 51 4.2 Criteria for control advice ....................................................................................... 51 4.3 Information resources and tools ............................................................................ 52 5 Recommendations ........................................................................................................... 53 Acknowledgements ............................................................................................................. 55 References ......................................................................................................................... 56 2 Abstract The South American freshwater apple snail, Pomacea canaliculata (Lamarck) has been introduced and become invasive in many parts of the world, causing significant economic losses in wetland rice cultivation, threatening biodiversity and impacting on human health. The confirmed report in 2020 of this snail species damaging rice crops in Mwea, the most important irrigation scheme in Kenya, represents a new introduction to continental Africa and brings into focus the need for a rapid and coordinated response to contain and mitigate the risk to other rice schemes, as well as neighbouring countries. This evidence note provides a review of the global invasive spread of P. canaliculata, its biology and ecological adaptability and assesses the risks and potential economic/yield losses for sub-Saharan African rice production over the next decade under different control scenarios. Given the strategic importance of rice production in the region, the potential impacts on food security and farmer income could be considerable. Monitoring, sustainable management and good agricultural practice recommendations are synthesized from established global resources and information is collated to support preparatory action and rapid response. Given the relatively localized distribution of the snail in Kenya, the implementation of a coordinated snail containment and eradication plan is urgently called for, underpinned by countrywide awareness raising, education and outreach to facilitate community-based vigilance and management. 3 Executive summary Background Invasive apple snails commonly referred to as ‘golden apple snails’ (GAS), belonging to the genus Pomacea pose major economic, environmental and health problems across many parts of the world. They have been widely introduced, either intentionally, as a human food resource, through the aquarium trade as a domestic snail pet or for aquatic weed control in both natural wetlands and irrigated rice, or accidentally, through water systems and as trade contaminants. Pomacea canaliculata (Lamarck), widely regarded as the most devastating of these pest species, has been identified from Kenyan rice paddies, the first record for mainland Africa. This evidence note provides a summary of knowledge about the invasive apple snail, its impacts and a synthesis of options for management from other affected countries. It is imperative that ecologically and economically sustainable approaches are put into practice for the integrated control of this destructive invasive mollusc species in Kenya, together with the implementation of effective quarantine and contingency measures, to avoid further spread to vulnerable areas of the country and neighbouring rice-growing countries. Strategic importance of rice Rice has
Load more

Recommended publications
  • [The Pond\. Odonatoptera (Odonata)]
    Odonatological Abstracts 1987 1993 (15761) SAIKI, M.K. &T.P. LOWE, 1987. Selenium (15763) ARNOLD, A., 1993. Die Libellen (Odonata) in aquatic organisms from subsurface agricultur- der “Papitzer Lehmlachen” im NSG Luppeaue bei al drainagewater, San JoaquinValley, California. Leipzig. Verbff. NaturkMus. Leipzig 11; 27-34. - Archs emir. Contam. Toxicol. 16: 657-670. — (US (Zur schonen Aussicht 25, D-04435 Schkeuditz). Fish & Wildl. Serv., Natn. Fisheries Contaminant The locality is situated 10km NW of the city centre Res. Cent., Field Res, Stn, 6924 Tremont Rd, Dixon, of Leipzig, E Germany (alt, 97 m). An annotated CA 95620, USA). list is presented of 30 spp., evidenced during 1985- Concentrations of total selenium were investigated -1993. in plant and animal samplesfrom Kesterson Reser- voir, receiving agricultural drainage water (Merced (15764) BEKUZIN, A.A., 1993. Otryad Strekozy - — Co.) and, as a reference, from the Volta Wildlife Odonatoptera(Odonata). [OrderDragonflies — km of which Area, ca 10 S Kesterson, has high qual- Odonatoptera(Odonata)].Insectsof Uzbekistan , pp. ity irrigationwater. Overall,selenium concentrations 19-22,Fan, Tashkent, (Russ.). - (Author’s address in samples from Kesterson averaged about 100-fold unknown). than those from Volta. in and A rather 20 of higher Thus, May general text, mentioning (out 76) spp. Aug. 1983, the concentrations (pg/g dry weight) at No locality data, but some notes on their habitats Kesterson in larval had of 160- and vertical in Central Asia. Zygoptera a range occurrence 220 and in Anisoptera 50-160. In Volta,these values were 1.2-2.I and 1.1-2.5, respectively. In compari- (15765) GAO, Zhaoning, 1993.
    [Show full text]
  • Population Dynamics of Pomacea Flagellata
    Limnetica, 29 (2): x-xx (2011) Limnetica, 34 (1): 69-78 (2015). DOI: 10.23818/limn.34.06 c Asociación Ibérica de Limnología, Madrid. Spain. ISSN: 0213-8409 Population dynamics of the native apple snail Pomacea flagellata (Ampullariidae) in a coastal lagoon of the Mexican Caribbean Frank A. Ocaña∗, Alberto de Jesús-Navarrete, José Juan Oliva-Rivera, Rosa María de Jesús- Carrillo and Abel Abraham Vargas-Espósitos1 Departamento de Sistemática y Ecología Acuática. El Colegio de la Frontera Sur (ECOSUR), Unidad Chetumal. Av. Centenario km 5.5, Chetumal, Quintana Roo, México ∗ Corresponding author: [email protected] 2 Received: 25/07/2014 Accepted: 20/11/2014 ABSTRACT Population dynamics of the native apple snail Pomacea flagellata (Ampullariidae) in a coastal lagoon of the Mexican Caribbean Apple snails Pomacea spp inhabit tropical and subtropical freshwater environments and are of ecological and economic importance. To evaluate the population dynamics of P. flagellata, monthly samples were collected from Guerrero Lagoon (Yucatán Peninsula) from June 2012 to May 2013. The measured environmental variables did not differ significantly among the sampling stations. However, salinity was lower during the rainy season, and the temperature was lower during the north season (i.e., the season dominated by cold fronts). The snails were more abundant during the rainy season, and they were restricted to the portion of the lagoon that receives freshwater discharges. The snails ranged from 4 to 55 mm in size, with a –1 maximum estimated length of L∞ = 57.75 mm and a growth rate of K = 0.68 y (the abbreviation “y” means “year”) with a seasonal oscillation; the lowest growth rate occurred in early December.
    [Show full text]
  • Symbionts and Diseases Associated with Invasive Apple Snails
    Symbionts and diseases associated with invasive apple snails Cristina Damborenea, Francisco Brusa and Lisandro Negrete CONICET, División Zoología Invertebrados, Museo de La Plata (FCNyM-UNLP), Paseo del Bosque, 1900 La Plata, Argentina. Email: [email protected], fbrusa@ fcnym.unlp.edu.ar, [email protected] Abstract This contribution summarizes knowledge of organisms associated with apple snails, mainly Pomacea spp., either in a facultative or obligate manner, paying special attention to diseases transmitted via these snails to humans. A wide spectrum of epibionts on the shell and operculum of snails are discussed. Among them algae, ciliates, rotifers, nematodes, flatworms, oligochaetes, dipterans, bryozoans and leeches are facultative, benefitting from the provision of substrate, transport, access to food and protection. Among obligate symbionts, five turbellarian species of the genusTemnocephala are known from the branchial cavity, with T. iheringi the most common and abundant. The leech Helobdella ampullariae also spends its entire life cycle inside the branchial cavity; two copepod species and one mite are found in different sites inside the snails. Details of the nature of the relationships of these specific obligate symbionts are poorly known. Also, extensive studies of an intracellular endosymbiosis are summarized. Apple snails are the first or second hosts of several digenean species, including some bird parasites.A number of human diseases are transmitted by apple snails, angiostrongyliasis being the most important because of the potential seriousness of the disease. Additional keywords: Ampullariidae, Angiostrongylus, commensals, diseases, epibionts, parasites, Pomacea, symbiosis 73 Introduction The term “apple snail” refers to a number of species of freshwater snails belonging to the family Ampullariidae (Caenogastropoda) inhabiting tropical and subtropical regions (Hayes et al., 2015).
    [Show full text]
  • Ecography ECOG-02578 Pinkert, S., Brandl, R
    Ecography ECOG-02578 Pinkert, S., Brandl, R. and Zeuss, D. 2016. Colour lightness of dragonfly assemblages across North America and Europe. – Ecography doi: 10.1111/ecog.02578 Supplementary material Appendix 1 Figures A1–A12, Table A1 and A2 1 Figure A1. Scatterplots between female and male colour lightness of 44 North American (Needham et al. 2000) and 19 European (Askew 1988) dragonfly species. Note that colour lightness of females and males is highly correlated. 2 Figure A2. Correlation of the average colour lightness of European dragonfly species illustrated in both Askew (1988) and Dijkstra and Lewington (2006). Average colour lightness ranges from 0 (absolute black) to 255 (pure white). Note that the extracted colour values of dorsal dragonfly drawings from both sources are highly correlated. 3 Figure A3. Frequency distribution of the average colour lightness of 152 North American and 74 European dragonfly species. Average colour lightness ranges from 0 (absolute black) to 255 (pure white). Rugs at the abscissa indicate the value of each species. Note that colour values are from different sources (North America: Needham et al. 2000, Europe: Askew 1988), and hence absolute values are not directly comparable. 4 Figure A4. Scatterplots of single ordinary least-squares regressions between average colour lightness of 8,127 North American dragonfly assemblages and mean temperature of the warmest quarter. Red dots represent assemblages that were excluded from the analysis because they contained less than five species. Note that those assemblages that were excluded scatter more than those with more than five species (c.f. the coefficients of determination) due to the inherent effect of very low sampling sizes.
    [Show full text]
  • Nature in Singapore 2009 2
    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/260762606 Singapore Mollusca: 7. The family Ampullariidae (Gastropoda: Caenogastropoda: Ampullarioidea) Article · March 2014 CITATIONS READS 18 3,515 3 authors: Ting Hui Ng Siong Kiat Tan National University of Singapore National University of Singapore 52 PUBLICATIONS 343 CITATIONS 110 PUBLICATIONS 503 CITATIONS SEE PROFILE SEE PROFILE Martyn Low National University of Singapore 159 PUBLICATIONS 1,177 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: The Order Zoantharia View project The French and Natural History in Singapore View project All content following this page was uploaded by Martyn Low on 14 March 2014. The user has requested enhancement of the downloaded file. NATURE IN SINGAPORE 2014 7: 31–47 2014 © National University of Singapore SINGAPORE MOLLUSCA: 7. THE FAMILY AMPULLARIIDAE (GASTROPODA: CAENOGASTROPODA: AMPULLARIOIDEA) Ting Hui Ng1, 2*, Siong Kiat Tan3 and Martyn E. Y Low3 1Department of Biological Sciences, National University of Singapore 14 Science Drive 4, Singapore 117543, Republic of Singapore 2NUS Environmental Research Institute, National University of Singapore 5A Engineering Drive 1, Singapore 117411, Republic of Singapore 3Raffles Museum of Biodiversity Research, National University of Singapore 6 Science Drive 2, Singapore 117546, Republic of Singapore (*Corresponding author: [email protected]) ABSTRACT. — The freshwater snails of the family Ampullariidae in Singapore are reviewed. This family is represented in Singapore by Pila ampullacea, Pila scutata, and the introduced Pomacea canaliculata and Pomacea maculata. Pila scutata and Pomacea canaliculata were once the only known Ampullariidae species in Singapore.
    [Show full text]
  • Pomacea Canaliculata) Behaviors in Different Water Temperature Gradients
    water Article Comparison of Invasive Apple Snail (Pomacea canaliculata) Behaviors in Different Water Temperature Gradients Mi-Jung Bae 1, Eui-Jin Kim 1 and Young-Seuk Park 2,* 1 Nakdonggang National Institute of Biological Resources, Sangju 37242, Korea; [email protected] (M.-J.B.); [email protected] (E.-J.K.) 2 Department of Biology, Kyung Hee University, Dongdaemun, Seoul 02447, Korea * Correspondence: [email protected]; Tel.: +82-2-961-0946 Abstract: Pomacea canaliculata (known as invasive apple snail) is a freshwater snail native to South America that was introduced into many countries (including Asia and North America) as a food source or for organic farming systems. However, it has invaded freshwater ecosystems and become a serious agricultural pest in paddy fields. Water temperature is an important factor determining behavior and successful establishment in new areas. We examined the behavioral responses of P. canaliculata with water temperature changes from 25 ◦C to 30 ◦C, 20 ◦C, and 15 ◦C by quantifying changes in nine behaviors. At the acclimated temperature (25 ◦C), the mobility of P. canaliculata was low during the day, but high at night. Clinging behavior increased as the water temperature decreased from 25 ◦C to 20 ◦C or 15 ◦C. Conversely, ventilation and food consumption increased when the water temperature increased from 25 ◦C to 30 ◦C. A self-organizing map (an unsupervised artificial neural network) was used to classify the behavioral patterns into seven clusters at different water temperatures. These results suggest that the activity levels or certain behaviors of P. canaliculata vary with the water temperature conditions.
    [Show full text]
  • Comparative Characterization of the Complete Mitochondrial Genomes of the Three Apple Snails (Gastropoda: Ampullariidae) and the Phylogenetic Analyses
    International Journal of Molecular Sciences Article Comparative Characterization of the Complete Mitochondrial Genomes of the Three Apple Snails (Gastropoda: Ampullariidae) and the Phylogenetic Analyses Huirong Yang 1,2, Jia-en Zhang 3,*, Jun Xia 2,4 , Jinzeng Yang 2 , Jing Guo 3,5, Zhixin Deng 3,5 and Mingzhu Luo 3,5 1 College of Marine Sciences, South China Agricultural University, Guangzhou 510640, China; [email protected] 2 Department of Human Nutrition, Food and Animal Sciences, University of Hawaii at Manoa, Honolulu, HI 96822, USA; [email protected] (J.X.); [email protected] (J.X.) 3 Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou 510642, China; [email protected] (J.G.); [email protected] (Z.D.); [email protected] (M.L.) 4 Xinjiang Acadamy of Animal Sciences, Institute of Veterinary Medicine (Research Center of Animal Clinical), Urumqi 830000, China 5 Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Guangzhou 510642, China * Correspondence: [email protected]; Tel.: +86-20-85285505; Fax: +86-20-85285505 Received: 11 October 2018; Accepted: 2 November 2018; Published: 19 November 2018 Abstract: The apple snails Pomacea canaliculata, Pomacea diffusa and Pomacea maculate (Gastropoda: Caenogastropoda: Ampullariidae) are invasive pests causing massive economic losses and ecological damage. We sequenced and characterized the complete mitochondrial genomes of these snails to conduct phylogenetic analyses based on comparisons with the mitochondrial protein coding sequences of 47 Caenogastropoda species. The gene arrangements, distribution and content were canonically identical and consistent with typical Mollusca except for the tRNA-Gln absent in P. diffusa.
    [Show full text]
  • Pomacea Dolioides (Reeve, 1856) Em Áreas Nativas
    UNIVERSIDADE FEDERAL DO AMAZONAS-UFAM INSTITUTO DE CIÊNCIAS EXATAS E TECNOLOGIA-ICET PROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA E TECNOLOGIA PARA RECURSOS AMAZÔNICOS-PPGCTRA Alternativas de Uso de Ampullariidae em Áreas Invadidas como Manejo Conservativo e Predação de Ovos do Gastrópode Pomacea dolioides (Reeve, 1856) em Áreas Nativas ALDEIZA MARQUES FONSECA ITACOATIARA – AM 2018 UNIVERSIDADE FEDERAL DO AMAZONAS-UFAM INSTITUTO DE CIÊNCIAS EXATAS E TECNOLOGIA-ICET PROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA E TECNOLOGIA PARA RECURSOS AMAZÔNICOS-PPGCTRA ALDEIZA MARQUES FONSECA Alternativas de Uso de Ampullariidae em Áreas Invadidas como Manejo Conservativo e Predação de Ovos do Gastrópode Pomacea dolioides (Reeve, 1856) em Áreas Nativas Dissertação apresentada ao Programa de Pós-Graduação em Ciência e Tecnologia para Recursos Amazônicos da Universidade Federal do Amazonas, para a obtenção do título de Mestre em Ciências e Tecnologia para Recursos Amazônicos, área de Ciências Ambientais. Orientador: Prof. Dr. Bruno Sampaio Sant’Anna ITACOATIARA – AM 2018 A minha mãe Maria Aldenora que sempre me incentivou e jamais me deixou desistir. Dedico AGRADECIMENTOS À Deus razão da minha existência, pela certeza de que até aqui me guiou e por me mostrar a cada dia que o desconhecido só pode ser encarado com tranquilidade se Ele estiver ao nosso lado, nos ajudando a vencer todas as dificuldades. À minha família pelos gestos de amor, dedicação e apoio, nos momentos mais difíceis dessa caminhada principalmente a minha mãe Aldenora. Ao meu noivo Arthur, por toda paciência, compreensão, carinho e amor, e por me ajudar muitas vezes a achar soluções quando elas pareciam não aparecer. Você foi a pessoa que compartilhou comigo os momentos de tristezas e alegrias.
    [Show full text]
  • The Proventriculus of Immature Anisoptera (Odonata) with Reference to Its Use in Taxonomy
    Louisiana State University LSU Digital Commons LSU Historical Dissertations and Theses Graduate School 1955 The rP oventriculus of Immature Anisoptera (Odonata) With Reference to Itsuse in Taxonomy. Alice Howard Ferguson Louisiana State University and Agricultural & Mechanical College Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_disstheses Recommended Citation Ferguson, Alice Howard, "The rP oventriculus of Immature Anisoptera (Odonata) With Reference to Itsuse in Taxonomy." (1955). LSU Historical Dissertations and Theses. 103. https://digitalcommons.lsu.edu/gradschool_disstheses/103 This Dissertation is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Historical Dissertations and Theses by an authorized administrator of LSU Digital Commons. For more information, please contact [email protected]. THE PROTENTRICULUS OF IMMATURE ANISOPTERA (ODONATA) WITH REFERENCE TO ITS USE IN TAXONOMY A Dissertation Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Department of Zoology, Physiology, and Entomology Alice Howard Ferguson B. S., Southern Methodist University, 193& M. S., Southern Methodist University, I9U0 June, 1955 EXAMINATION AND THESIS REPORT Candidate: Miss Alice Ferguson Major Field: Entomology Title of Thesis: The Proventriculus of Immature Anisoptera (Odonata) with Reference to its Use in Taxonomy Approved: Major Professor and Chairman Deanpf-tfio Graduate School EXAMINING COMMITTEE: m 1.1 ^ ----------------------------- jJ------- --- 7 ------ Date of Examination: May6 , 195$ PiKC t U R D C N ACKNOWLEDGEMENT I want to express ny appreciation to the members of ny committee, especially to J.
    [Show full text]
  • Invasive Pomacea Snails: Actual and Potential Environmental Impacts and Their Underlying Mechanisms
    CAB Reviews 2019 14, No. 042 Invasive Pomacea snails: actual and potential environmental impacts and their underlying mechanisms P. R. Martín1,2*, S. Burela1,2, M. E. Seuffert1,2, N. E. Tamburi1,3 and L. Saveanu1,3 Address: 1 Instituto de Ciencias Biológicas y Biomédicas del Sur (INBIOSUR, UNS-CONICET), San Juan 671, Bahía Blanca, Argentina. 2 Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, Bahía Blanca, Argentina. 3 Departamento de Matemática, Universidad Nacional del Sur, Alem 1250, Bahía Blanca, Argentina. PRM: 0000-0002-2987-7901, SB: 0000-0002-0695-8477, MES: 0000-0002-7637-3626, NET: 0000-0002-5644-9478, LS: 0000-0001-6408-4571. *Correspondence: P. R. Martín. Email: [email protected] Received: 4 April 2019 Accepted: 31 May 2019 doi: 10.1079/PAVSNNR201914042 The electronic version of this article is the definitive one. It is located here: http://www.cabi.org/cabreviews © CAB International 2019 (Online ISSN 1749-8848) Abstract Apple snails are large freshwater snails belonging to the family Ampullariidae that inhabit tropical to temperate areas. The South American apple snails Pomacea canaliculata and Pomacea maculata have been introduced to other continents where they have successfully established and spread. Our review aims to analyse the mechanisms of the impacts that these invasive Pomacea provoke or may provoke. Nine basic mechanisms were identified: grazing/herbivory/browsing, competition, predation, disease transmission, hybridisation with native species, poisoning/toxicity, interaction with other invasive species, promotion of collateral damage of control methods on non-target species and when acting as prey. The most important impacts are those related to their grazing on aquatic macrophytes, algae and rice and their competition and predation on other aquatic animals, mostly macroinvertebrates, including other apple snails.
    [Show full text]
  • Mollusca, Gastropoda Et Bivalvia) of Santa Catarina State (SC, Central Southern Brazil Region)
    Biodiversity Journal, 2011, 2 (1): 9-12 Current knowledge on population studies on five continental molluscs (Mollusca, Gastropoda et Bivalvia) of Santa Catarina State (SC, Central Southern Brazil region) A. Ignacio Agudo-Padrón Project “Avulsos Malacológicos - AM”, P.O. Box 010 - 88010-970, Florianópolis, Santa Catarina, SC, Brasil; [email protected]; http://noticias-malacologicas-am.webnode.pt ABSTRACT Although still very scarce, available knowledge on population studies on continental (land and freshwater) molluscs in the territory of Santa Catarina State is shortly analyzed and discussed. Based on the IUCN “Restricted Distribution” criterion, a total of 54 nominal species, including 31 terrestrial gastropods, 15 freshwater gastropods and 8 limnic bivalves, were considered strong candidates as threatened taxa. Out of all these endangered species, only 5 limnic forms (2 gastropods and 3 bivalves) were previously analysed, in some way, at population level. KEY WORDS Biodiversity, Conservation status, Continental mollusc populations, Santa Catarina State, Southern Brazil region. Received 08.01.2011; accepted 13.02.2011; printed 30.03.2011 INTRODUCTION responsible for serious sanitary and agronomic problems (Agudo & Bleicker, 2006a; Agudo- As already reported in Moraes (2006), all Padrón, 2008; Agudo-Padrón & Lenhard, 2010). Brazilian autochthonous continental mollusc Introduced willfully or accidentally, allochthonous species are seriously threatened with extinction. invading species are novel to local ecosystems Moreover, there are presumably a high number and, for this reason, lack any natural predators, of taxa still awaiting discovery and numerous thus achieving an uncontrolled growth of others that, as a first step for their conservation, populations with, consequently, extinction of need to be investigated and inventoried with native species and an indiscriminate occupation alacricity.
    [Show full text]
  • Happy 75Th Birthday, Nick
    ISSN 1061-8503 TheA News Journalrgia of the Dragonfly Society of the Americas Volume 19 12 December 2007 Number 4 Happy 75th Birthday, Nick Published by the Dragonfly Society of the Americas The Dragonfly Society Of The Americas Business address: c/o John Abbott, Section of Integrative Biology, C0930, University of Texas, Austin TX, USA 78712 Executive Council 2007 – 2009 President/Editor in Chief J. Abbott Austin, Texas President Elect B. Mauffray Gainesville, Florida Immediate Past President S. Krotzer Centreville, Alabama Vice President, United States M. May New Brunswick, New Jersey Vice President, Canada C. Jones Lakefield, Ontario Vice President, Latin America R. Novelo G. Jalapa, Veracruz Secretary S. Valley Albany, Oregon Treasurer J. Daigle Tallahassee, Florida Regular Member/Associate Editor J. Johnson Vancouver, Washington Regular Member N. von Ellenrieder Salta, Argentina Regular Member S. Hummel Lake View, Iowa Associate Editor (BAO Editor) K. Tennessen Wautoma, Wisconsin Journals Published By The Society ARGIA, the quarterly news journal of the DSA, is devoted to non-technical papers and news items relating to nearly every aspect of the study of Odonata and the people who are interested in them. The editor especially welcomes reports of studies in progress, news of forthcoming meetings, commentaries on species, habitat conservation, noteworthy occurrences, personal news items, accounts of meetings and collecting trips, and reviews of technical and non-technical publications. Membership in DSA includes a subscription to Argia. Bulletin Of American Odonatology is devoted to studies of Odonata of the New World. This journal considers a wide range of topics for publication, including faunal synopses, behavioral studies, ecological studies, etc.
    [Show full text]