A Review on Persisting Threats to Snail's Diversity and Its Conservation Approaches
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Habitat Preference of Freshwater Snails in Relation to Environmental Factors
Mem Inst Oswaldo Cruz, Rio de Janeiro, Vol. 100(2): 169-176, April 2005 169 Habitat preference of freshwater snails in relation to environmental factors and the presence of the competitor snail Melanoides tuberculatus (Müller, 1774) Alexandre Giovanelli, Cesar Luiz Pinto Ayres Coelho da Silva/+, Geórgia Borges Eccard Leal, Darcílio Fernandes Baptista Laboratório da Avaliação e Promoção da Saúde Ambiental, Departamento de Biologia, Instituto Oswaldo Cruz-Fiocruz, Av. Brasil 4365, 21045-900 Rio de Janeiro, RJ, Brasil Our objective is to evaluate the habitat preference of freshwater snails in relation to environmental factors and the presence of the competitor snail Melanoides tuberculatus. In the first phase, snails was collected at 12 sites. This sampling sites presented a degree of organic input. In the second phase 33 sampling sites were chosen, covering a variety of lotic and lentic environments. The snail species found at Guapimirim, state of Rio de Janeiro, displayed a marked habitat preference, specially in relation to the physical characteristics of each environment. Other limit- ing factors for snail distribution at the studied lotic environments were the water current velocity and the amount of organic matter, mainly to Physa marmorata, M. tuberculatus, and Biomphalaria tenagophila. The absence of interac- tions between M. tuberculatus and another snails could be associated to the distinct spatial distribution of those species and the instability of habitats. This later factor may favor the coexistence of M. tuberculatus with B. glabrata by reduction of population density. In areas of schistosomiasis transmission some habitat modification may add to the instability of the environment, which would make room for the coexistence of M. -
Notes on Terrestrial Molluscs of Java, Bali and Nusa Penida 151
BASTERIA, 59: 149-162, 1996 Notes Bali on terrestrial molluscs of Java, and Nusa Penida J.J. Vermeulen Rijksherbarium, P.O. Box 9514, 2300 RA Leiden, The Netherlands This includes the of twelve from and Nusa paper descriptions new species Java, Bali, Penida, belonging to the familiesAssimineidae, Cyclophoridae,Diplommatinidae,Achatinellidae,Ariophantidae, and Euconulidae. included in the Valloniidae the Camaenidae, Endodontidae, Previously , genus is theAssimineidae. and Balinese shells Anaglyphula Rensch, 1932, transferred to Javanese gener- ally identified as Lamprocystus infans (Pfeiffer, 1854) are found to differ from the Bornean shells of this species, including the type. Diagnostic characters are given to facilitate the identificationof some shells of Macrochlamys and Helicarion species which are often confused. Key words: Gastropoda, Prosobranchia, Assimineidae, Cyclophoridae, Diplommatinidae,Pul- Heli- monata, Achatinellidae, Ariophantidae, Camaenidae, Endodontidae, Euconulidae, carionidae, taxonomy, Indonesia,Java, Bali, Nusa Penida. While going through samples from various museums and private collections in order to compile a guide to the terrestrial molluscs of Bali and Nusa Penida (an island Southeast ofBali), 12 new species were found originating from both these islands as well as Java. These are described below. Changes in the delimitation or in the systematic position of some other species are proposed. The treated before the Withinboth prosobranch species are first, pulmonates. groups, the families and then the species are discussed in alphabetical order. The author is indebted to all who made this compilation possible. Particularly the collecting activities of Dr. A.J. Whitten (UK), and Mr. V. Kessner (Australia) added novelties the list of Bali Penida material numerous to the and Nusa species. -
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Rec. zool. Surv. India, 98(Part-3) : 67-70, 2000 NEW RECORDS OF PESTIFEROUS LAND MOLLUSCS FROM RAJASTHAN, INDIA SEEMA KUMAR and S.I. AHMED Arid forest Research Institute, P. O. Krishi Mandi, New Palsi Road, Jodhpur-342 005, Rajasthan, India INTRODUctION More than 1500 species of land mollusc are recorded from India. Out of these, twelve species viz. Achatina fulica Bowdich, Ariophanla bajadera (Pfeiffer), Ariophanta ligulata Ferrussac, Ariophanta solata (Benson), Bensonia monticola Hutton, Cryptozona belangiri Deshayes, Cryptozona (Nilgiria) semiru~ata (Seck.), Cryptozona (Xestina) bistrialis Beck., Macrochlamys indica (Godwin-Austen), Opeas gracile (Hutton), Zootecus insularis (Ehrenberg) and Mariaella dussumieri (Gray) are known to cause damage to agricultural, horticultural and plantation crops in India (Raut & Ghosh, 1984; Srivastava, 1992 and Subba Rao, 1975). So far, only two pestiferous land moliusc Opeas gracile (Hutton) and Zootecus insularis (Ehrenberg) are reported from Rajasthan (Subba Rao & Mitra, 1979 and Raut & Ghosh, 1984). Laevicaulis alte (Ferussac) is reported from Udaipur, Rajasthan but not as a pest (Ray & Mukherjee, 1963). The present paper reports for the first time, two more pestiferous land mollusc - Laevicaulis alte (Ferussac) and Macrochlamys indica (Godwin-Austen), as severe pests of neem seedlings in forest nurseries of Rajasthan along with new distributional records. SYSTEMATIC ACCOUNT 1. Laevicaulis aile (Ferussac, 1821) Phyllum MOLLUSCA Class GASTROPODA Subclass GYMNOMORPHA Order STYLOMMATOPHORA Family VERONICELLIDAE Genus Laevicaulis Simtoth, 1913. Laevicaulis aile (Ferussac, 1821) 1821. Vaginulus aile Ferussac, Tab1. Syst. Anim. Moll., Paris, p. 14. 1925. Meisenheimeria aile Hoffman. Tena. Z. Naturw., Jena, 61 : 226-228. PI. V, Fig. 45 b. 68 RECORDS OF THE ZOOLOGICAL SURVEY OF INDIA 1953. -
Análisis Morfológico Del Sistema Reproductor E Identificación
Revista Peruana de Biología ISSN: 1561-0837 [email protected] Universidad Nacional Mayor de San Marcos Perú Jaramillo Roldán, Erika; López Martínez, Jessika; Ramírez, Rina; Velásquez Trujillo, Luz Elena Análisis morfológico del sistema reproductor e identificación molecular a través de los marcadores mitocondriales COI y 16S rRNA de Megalobulimus oblongus (Mollusca, Strophocheilidae) de Colombia Revista Peruana de Biología, vol. 21, núm. 1, mayo-, 2014, pp. 79-88 Universidad Nacional Mayor de San Marcos Lima, Perú Disponible en: http://www.redalyc.org/articulo.oa?id=195031025004 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Revista peruana de biología 21(1): 079 - 088 (2014) ISSN-L 1561-0837 Identificación morfológica y molecular de MEGALOBULIMUS OBLONGUS DE COLOMBIA doi: http://doi.org/10.15381/rpb.v21i1.8250 FACULTAD DE CIENCIAS BIOLÓGICAS UNMSM TRABAJOS ORIGINALES Análisis morfológico del sistema reproductor e identificación molecular a través de los marcadores mitocondriales COI y 16S rRNA de Megalobulimus oblongus (Mollusca, Strophocheilidae) de Colombia Morphological analysis of the reproductive system and molecular identification by mitochondrial markers COI and 16S rRNA of Megalobulimus oblongus (Mollusca, Strophocheilidae) of Colombia Erika Jaramillo Roldán1,3, Jessika López Martínez1,3, Rina Ramírez2, Luz Elena Velásquez Trujillo1,3 1 Grupo de Microbiología Ambiental, Escuela de Resumen Microbiología, Universidad de Antioquia, Medel- lín, Colombia. En este trabajo se hizo el análisis morfológico y molecular a 28 caracoles terrestres de Mega- 2 Laboratorio de Sistemática Molecular y Filogeo- lobulimus oblongus, colectados en diferentes departamentos de Colombia, depositados en grafía, Facultad de Ciencias Biológicas; y Museo una colección de referencia. -
December 2011
Ellipsaria Vol. 13 - No. 4 December 2011 Newsletter of the Freshwater Mollusk Conservation Society Volume 13 – Number 4 December 2011 FMCS 2012 WORKSHOP: Incorporating Environmental Flows, 2012 Workshop 1 Climate Change, and Ecosystem Services into Freshwater Mussel Society News 2 Conservation and Management April 19 & 20, 2012 Holiday Inn- Athens, Georgia Announcements 5 The FMCS 2012 Workshop will be held on April 19 and 20, 2012, at the Holiday Inn, 197 E. Broad Street, in Athens, Georgia, USA. The topic of the workshop is Recent “Incorporating Environmental Flows, Climate Change, and Publications 8 Ecosystem Services into Freshwater Mussel Conservation and Management”. Morning and afternoon sessions on Thursday will address science, policy, and legal issues Upcoming related to establishing and maintaining environmental flow recommendations for mussels. The session on Friday Meetings 8 morning will consider how to incorporate climate change into freshwater mussel conservation; talks will range from an overview of national and regional activities to local case Contributed studies. The Friday afternoon session will cover the Articles 9 emerging science of “Ecosystem Services” and how this can be used in estimating the value of mussel conservation. There will be a combined student poster FMCS Officers 47 session and social on Thursday evening. A block of rooms will be available at the Holiday Inn, Athens at the government rate of $91 per night. In FMCS Committees 48 addition, there are numerous other hotels in the vicinity. More information on Athens can be found at: http://www.visitathensga.com/ Parting Shot 49 Registration and more details about the workshop will be available by mid-December on the FMCS website (http://molluskconservation.org/index.html). -
Sôbre a Ocorrência De Strophocheilidae (Molusco Gastrópode) No Rio Grande Do Sul
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Cadernos Espinosanos (E-Journal) SÔBRE A OCORRÊNCIA DE STROPHOCHEILIDAE (MOLUSCO GASTRÓPODE) NO RIO GRANDE DO SUL PAULO SAWAYA e JORGE ALBERTO PETERSEN* (Departamento de Fisiologia Geral e Animal da USP, e Instituto de Ciências Naturais da Univ. R. G. do Sul) (Com 1 Est.) O presente trabalho teve por origem a necessidade de determi nar a espécie dos caracóis coletados para execícios práticos de fi siologia comparada. Os caracteres dos animais do nosso material coincidem em grande parte com os de Strophocheilus oblongus mus- culus Becquaert, 1948, subespécie até agora somente citada para a Argentina e Paraguai. Para o nosso estudo seguimos a monografia elaborada por Bec quaert (1948) sôbre a revisão da família Strophocheilidae. Dela nos servimos também para a discussão e comentários. Grande auxílio nos prestou a excelente coleção malacológica existente no Departamento de Zoologia da Secretaria de Agricultura de São Paulo, estudada pelo próprio Becquaert. Agradecemos ao Dr. Celso Paulo Jaeger o fornecimento de vários caracóis; ao Dr. Lindolpho Guimarães e ao Lic. José Luiz Moraes Le me também agradecemos pelas facilidades proporcionadas para a con sulta da coleção malacológica do Departamento de Zoologia da Se cretaria de Agricultura do Estado de São Paulo. Daremos a seguir a diagnose do gênero, do subgênero e os ele mentos de que nos valemos para a determinação da subespécie, e após a discussão, apresentaremos alguns comentários sôbre as Stropho cheilidae . * Bolsista da Universidade de São Paulo. 32 P. SAWAYA & J. A. PETER SEN GÊNERO STROPHOCHEILUS SPIX, 1827 Caracteres da concha: tamanho médio a muito grande (20 a 160 mm de comprimento), grande capacidade, oblonga-ovalada, elíptica ou em forma de fuso, relativamente larga em relação ao comprimento, sendo porém êste sempre maior do que a largura, com uma volta do corpo bastante desenvolvida, e com um ápice obtuso arredondado. -
Population Dynamics and Spatial Dist'ribution of Tlle Terrestrial Snail Ovachlamys Fulgens (Stylommatopbora: Helicarionidae) in a Tropical Environment
Rev. Biol. Trop., 48(1): 71-87, 2000 www.ucr.ac.cr Www.ots.ac.cr www.ots.duke.edu Population dynamics and spatial dist'ribution of tlle terrestrial snail Ovachlamys fulgens (Stylommatopbora: Helicarionidae) in a tropical environment Zaidett Barrientos Departamento de Malacología, Instituto Nacional de Biodiversidad (INBio), Apdo. 22-3100 Sto. Domingo, Heredia, Costa Rica. Fax (506)2442816, E-mail: [email protected] Received 8-VI-1999. Corrected 9-XI-1999. Accepted 20-XI-1999. Abstract: The introduced snail Ovachlamys fulgens (Stylommatophora: Heliearionidae) oeeurs on cultivated land habitats in Costa Rica, where its macrodistribution seems to be limited by annual mean temperature (20 - 27.6°C) and annual preeipitation (1 530 - 3 034 and 3 420 - 8 000 mm, with no more than six dry months). This species can be found in ¡itter and on vegetation up to 70 cm tal\. Randomquadrat field sampling was done in leaf litter and understory plants every three months for a total of five dates inCentral Costa Rica. At least 150 plots of 2Sx25 cm were analyzed on each date. Abundance of living specimens andeggs was positively correlated with (1) litter abundance anddepth, (2) litter and soil humidity, (3) relative humidity and (4) earlymoming tempera ture (6:30 AM), and negatively correlated with temperature later in the moming (10:00 AM). Besides these fac tors, living snail abundance was eorrelated with thickness of the herbaeeous vegetation and with the oeeurrence of fueca elephantiphes (in litter and understory). Egg abundanee was also correlated with the sampling date, apparentlybecause of changes in humídity. The correlationpattem of shell abundance was opposite to that of liv ing specimens. -
Freshwater Snail Guide
A Beginner’s Guide to Freshwater Snails of Central Scotland Freshwater snails are a diverse and fascinating group of molluscs found in ponds, lochs, canals, rivers and watery ditches all across the globe. This guide is a simple introduction to some of the most commonly encountered and easily identifiable freshwater snail species in Central Scotland. How do I look for freshwater snails? 1) Choose your spot: anywhere with water – your garden pond, a nearby river, canal or loch – is likely to have snails. 2) Grab a pond net (buy online or make your own by attaching a sieve to the end of an old broom or mop), a white tray or tub and a hand-lens or magnifier. 3) Fill the tray with water from your chosen habitat. Sweep the net around in the water, making sure to get among any vegetation (don’t go too near the bottom or you’ll get a net full of mud), empty your net into the water-filled tray and identify what you have found! Snail shell features Spire Whorls Some snail species have a hard plate called an ‘operculum’ Height which they Mouth (Aperture) use to seal the mouth of the shell when they are inside Height Pointed shell Flat shell Width Width Pond Snails (Lymnaeidae) Variable in size. Mouth always on right-hand side, shells usually long and pointed. Great Pond Snail Common Pond Snail Lymnaea stagnalis Radix balthica Largest pond snail. Common in ponds Fairly rounded and ’fat’. Common in weedy lakes, canals and sometimes slow river still waters. pools. -
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. -
Gastropoda: Physidae) in Singapore
BioInvasions Records (2015) Volume 4, Issue 3: 189–194 Open Access doi: http://dx.doi.org/10.3391/bir.2015.4.3.06 © 2015 The Author(s). Journal compilation © 2015 REABIC Research Article Clarifying the identity of the long-established, globally-invasive Physa acuta Draparnaud, 1805 (Gastropoda: Physidae) in Singapore Ting Hui Ng1,2*, Siong Kiat Tan3 and Darren C.J. Yeo1,2 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, #02-01, Singapore 117411, Republic of Singapore 3Lee Kong Chian Natural History Museum, National University of Singapore, 2 Conservatory Drive, Singapore 117377, Republic of Singapore E-mail: [email protected] (THN), [email protected] (SKT), [email protected] (DCJY) *Corresponding author Received: 24 December 2014 / Accepted: 6 May 2015 / Published online: 2 June 2015 Handling editor: Vadim Panov Abstract The freshwater snail identified as Physastra sumatrana has been recorded in Singapore since the late 1980’s. It is distributed throughout the island and commonly associated with ornamental aquatic plants. Although the species has previously been considered by some to be native to Singapore, its origin is currently categorised as unknown. Morphological comparisons of freshly collected specimens and material in museum collections with type material, together with DNA barcoding, show that both Physastra sumatrana, and a recent gastropod record of Stenophysa spathidophallus, in Singapore are actually the same species—the globally-invasive Physa acuta. An unidentified physid snail was also collected from the Singapore aquarium trade. -
Study of Snail, Macrochlamys Indica and Slug, Filicaulis Alte in Relation To
© 2019 JETIR June 2019, Volume 6, Issue 6 www.jetir.org (ISSN-2349-5162) Study of Snail, Macrochlamys indica and slug, Filicaulis alte in relation to damage inflicted by them in different Ornamental Plant Nurseries near Buddha Nullah, Ludhiana. Manpreet Kaur and B.K. Babbar Department of Zoology, Punjab Agricultural University, Ludhiana-141004 (Punjab), INDIA ABSTRACT From the present study it is concluded slug, Filicaulis alte and Macrochlamys indica was found in all the four plant nurseries namely PAU Plant nursery, Prabhakar nursery, Laxmi nursery and Tulsigaurd nursery. Thesegastropods carved irregular holes within the leaves of different plants from the month of April till October but no damage was recorded from November to February as animals were in hibernation. Maximum mean percent plants affected by gastropods was recorded in the month of August in all plant nurseries, when the population density of gastropods was maximum.So maximum damage was recorded in the month of August. Key words: Filicaulis alte, Macrochlamys indica, Nurseries, Plants Land Snail, Pulmonate molluscs are the members of the molluscan class, Gastropod, which have a coiled shell on their back into which they retract themselves unlike the slugs which lack shell. These terrestrial molluscs are destructive agricultural pests causing economic damage to field crops, vegetables, fruits trees and ornamental plants (Barker 2002). Snails and slugs are important components of detritivorous and herbivorous fauna in most of the ecosystems (Russell-Hunter 1983). Damage caused by them to ornamental plants in the field, nursery or greenhouse has been a perennial problem. They are gregariousfeeders that are active at night on cloudy days and causes damage. -
Abstract Volume
ABSTRACT VOLUME August 11-16, 2019 1 2 Table of Contents Pages Acknowledgements……………………………………………………………………………………………...1 Abstracts Symposia and Contributed talks……………………….……………………………………………3-225 Poster Presentations…………………………………………………………………………………226-291 3 Venom Evolution of West African Cone Snails (Gastropoda: Conidae) Samuel Abalde*1, Manuel J. Tenorio2, Carlos M. L. Afonso3, and Rafael Zardoya1 1Museo Nacional de Ciencias Naturales (MNCN-CSIC), Departamento de Biodiversidad y Biologia Evolutiva 2Universidad de Cadiz, Departamento CMIM y Química Inorgánica – Instituto de Biomoléculas (INBIO) 3Universidade do Algarve, Centre of Marine Sciences (CCMAR) Cone snails form one of the most diverse families of marine animals, including more than 900 species classified into almost ninety different (sub)genera. Conids are well known for being active predators on worms, fishes, and even other snails. Cones are venomous gastropods, meaning that they use a sophisticated cocktail of hundreds of toxins, named conotoxins, to subdue their prey. Although this venom has been studied for decades, most of the effort has been focused on Indo-Pacific species. Thus far, Atlantic species have received little attention despite recent radiations have led to a hotspot of diversity in West Africa, with high levels of endemic species. In fact, the Atlantic Chelyconus ermineus is thought to represent an adaptation to piscivory independent from the Indo-Pacific species and is, therefore, key to understanding the basis of this diet specialization. We studied the transcriptomes of the venom gland of three individuals of C. ermineus. The venom repertoire of this species included more than 300 conotoxin precursors, which could be ascribed to 33 known and 22 new (unassigned) protein superfamilies, respectively. Most abundant superfamilies were T, W, O1, M, O2, and Z, accounting for 57% of all detected diversity.