MOLUSCOS TERRESTRES DA ILHA DE SAO JORGE. Rua Da
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Snail Herbivory Decreases Cyanobacterial Abundance And
Snail herbivory decreases cyanobacterial abundance and lichen diversity along cracks of limestone pavements 1 2, 2 2 LARS FRO€BERG, PETER STOLL, ANETTE BAUR, AND BRUNO BAUR 1Botanical Museum, Department of Biology, O¨ stra Vallgatan 18, SE-223 61 Lund, Sweden 2Section of Conservation Biology, Department of Environmental Sciences, University of Basel, St. Johanns-Vorstadt 10, CH-4056 Basel, Switzerland Abstract. Herbivores are known to decrease plant species diversity in ecosystems with low productivity. Limestone pavements are low-productive habitats harboring specialized communities of cyanobacteria, and endo- and epilithic lichens exposed to extreme temperature and humidity fluctuations. Pavements of the Great Alvar (O¨ land, Sweden) are covered by free-living cyanobacteria giving the rock surface a dark color. Based on cyanobacterial abundance along the edges, two types of cracks intersecting the pavements have been described: Type one with abundant cyanobacteria and type two without cyanobacteria resulting in light-colored edges. Erosion and different lengths of inundation by melt water have been suggested to cause the conspicuous differences in community composition and hence color between cracks. We hypothesized that this pattern results from the grazing activity of the cyanobacteria- and lichen-feeding snail Chondrina clienta, which reduces cyanobacterial cover along light-colored cracks and facilitates endolithic lichens. Three dark and three light-colored cracks were investigated at each of three localities. Crack characteristics (i.e., aspect, width, depth and erosion) and snail density were assessed at the crack level. Cyanobacterial cover and lichen diversity were recorded in 1-cm sections, sampled every 5 cm along eight 160-cm-long transects per crack. -
Compositional Variability of Pleistocene Land Snail Assemblages Preserved in a Cinder Cone
Compositional variability of Pleistocene land snail assemblages preserved in a cinder cone volcano from Tenerife, Canary Islands A thesis submitted to the graduate school of the University of Cincinnati in partial fulfillment of the requirements for the degree of Master of Science In the Department of Geology of the College of Arts and Sciences by Elizabeth M. Bullard B.S., Muskingum University, 2012 July 2016 Advisors: Dr. Yurena Yanes Dr. Arnold I. Miller Committee Member: Dr. Joshua Miller i Abstract Fossil assemblage faunal compositions may vary through space and time in response to climatic and/or taphonomic factors, but these relationships can be difficult to diagnose and disentangle. Here, we investigate how to disentangle climatic and taphonomic signals of a land- snail-rich volcanic scoria sequence to asses if it was influenced by taphonomic bias, climate change, or both, using a multifaceted approach, combining taphonomic, ecological, body-size, and stable-isotope data. Fossil assemblages were sampled from two beds (Units A and B) in a Pleistocene cinder cone volcano of southern Tenerife (Canary Islands), dated to the glacial interval MIS 8 (~299-302 ka). The two units differed in taphonomy, species composition, and abundance distributions. The upper unit, B (6 species), showed higher snail diversity and shell concentration and lower taphonomic alteration than the lower unit, A (3 species). Furthermore, larger bodied species (length>10mm) dominated Unit A and were better preserved than smaller species (length<10mm), whereas smaller individuals were more abundant (and better preserved) at Unit B. These differences were likely impacted by physical differences in the matrices surrounding the fossils. -
Spatial Predictive Distribution Modelling of Madeira's Endemic
DEPARTAMENTO DE ZOOLOGIA FACULDADE DE CIÊNCIAS E TECNOLOGIA UNIVERSIDADE DE COIMBRA Spatial predictive distribution modelling of Madeira’s endemic land snail species Dinarte Nuno Freitas Teixeira 2009 REGIÃO AUTÓNOMA DA REPÚBLICA PORTUGUESA UNIÃO EUROPEIA MADEIRA FSE DEPARTAMENTO DE ZOOLOGIA FACULDADE DE CIÊNCIAS E TECNOLOGIA UNIVERSIDADE DE COIMBRA Spatial predictive distribution modelling of Madeira’s endemic land snail species Dissertação apresentada à Universidade de Coimbra para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Ecologia, realizada sob a orientação científica do Professor Doutor José Paulo Sousa (Universidade de Coimbra) e do Professor Doutor José Manuel Jesus (Universidade da Madeira). Dinarte Nuno Freitas Teixeir a 2009 O presente trabalho foi financiado pelo Centro de Ciência e Tecnologia da Madeira (CITMA), através da bolsa de Mestrado FSE BM I/2008 – 531, ao abrigo do Programa Operacional de Valorização do Potencial Humano e Coesão Social da RAM (RUMOS). REGIÃO AUTÓNOMA DA MADEIRA REPÚBLICA PORTUGUESA UNIÃO EUROPEIA FSE À Susana AGRADECIMENTOS Esta tese é o resultado de um trabalho conjunto para o qual muitos contribuíram e aos quais desejo reconhecer e deixar o meu agradecimento. Ao professor Doutor José Paulo Sousa, meu orientador, pela indispensável ajuda, paciência e orientação científica. Ao professor Doutor José Manuel Jesus, meu orientador, pela amizade e apoio desde os primeiros momentos. Pelo seu empenho, conselhos transmitidos, chamadas à razão e orientação científica o meu muito obrigado. Ao Doutor Pedro Cardoso, meu orientador e a quem muito devo, pelo constante acompanhamento e disponibilidade, amizade e orientação científica. Por tudo o que me ensinou, pela motivação e animo que sempre me transmitiu, e, acima de tudo, pela manutenção da objectividade do trabalho. -
Gastropoda Pulmonata, Testacellidae)
B75-DeWinter:Basteria-2010 26/06/2011 14:48 Page 11 Testacella haliotidea Draparnaud, 1801 in The Netherlands (Gastropoda Pulmonata, Testacellidae) A.J. (Ton) de Winter Netherlands Centre for Biodiversity Naturalis, P.O. Box 9517, NL-2300 RA Leiden, The Netherlands; [email protected] [Corresponding author] & Freddy A.D. van Nieulande Scheldepoortstraat 56, NL-4339 BN Nieuw en Sint-Joosland, The Netherlands Introduction This is the first formal report of the occurrence of a Testacella species in The Netherlands. In 2010 at least 20 specimens of Representatives of the earthworm-eating slug family Testacella haliotidea were discovered in a garden near Middel - Testacellidae are not often reported, undoubtedly due to 11 burg, Prov. of Zeeland, ranging from small juveniles to their subterraneous and nocturnal behaviour (Quick, 1960; adults, indicating the presence of a reproducing population . Barker, 1979 ). On 28 September 2010 the second author In the collection of the Netherlands Centre for Biodiversity discovered a slug in a garden in the village of Nieuw en Naturalis, Leiden (RMNH) are also four samples from Sint-Joosland near Middelburg (Province of Zeeland) which various parts of the country , collected between 1961 and he had never seen before. It soon became clear that this con - 1988, which were never published. A single shell probably cerned a species of Testacella , which seemed to constitute the belonging to this species was found in the province of first Dutch record of the land slug family Testacellidae. In Limburg in 2009. Testacella haliotida is probably an inciden - the course of October and November additional specimens tally introduced species that can reproduce and establish were found. -
Reply to Quintana Et Al
SPIRA 2007 Vol. 2 Núm. 3 Pàg. 191-196 Rebut el 8 d’octubre de 2007; Acceptat el 27 d’octubre de 2007 Reply to Quintana et al. (2007): Darderia bellverica Altaba, 2007 is the correct name for the Mallorcan fossil helicodontid CRISTIAN R. ALTABA Laboratory of Human Systematics, Universitat de les Illes Balears, 07071 Palma de Mallorca, Balearic Islands (Spain) E-mail: [email protected] _______________________________________________________________________________________________ For several decades, a very rare, take the occasion to criticize my work. enigmatic land snail found in Quaternary Herewith I present a rebuttal of all their sediments on the island of Mallorca points. (Majorca) was attributed to Oestophora barbula (Rossmässler, 1838), a west- • The original description of Darderia Iberian species never recorded in the bellverica was published in February Balearics (Gasull, 1963; Cuerda, 1989). 2007. Although issue 26.2 of Animal This identification was based on superficial Biodiversity and Conservation belongs similarity and incomplete preparation of the into the volume corresponding to 2006, few specimens available. A re-examination the actual publication date is clearly of the two shells belonging to the Gasull mentioned in both the print and online collection and now deposited at the Museu versions. de Ciències Naturals de la Ciutadella in • The claim by Quintana et al. (2007) that Barcelona (catalog number MZB 84–6550) their former paper was published in allowed the description of a new species 2006 is a factual misrepresentation. within a new endemic genus, Darderia The Bolletí of the SHNB has often been bellverica Altaba, 2007 (Figures 1 and 2). published with great delay relative to the publication date printed in recent Several months after this description issues; volume 49 is no exception. -
(Calidivitrina) Chyuluensis (Figs 1-3) by a Long
BASTERIA, 69:147-156, 2005 A new species of Vitrina (Gastropoda, Pulmonata, Vitrinidae) from Kenya with a discussion of the genus in East Africa B. Verdcourt Royal Botanic Gardens, Kew, Richmond,Surrey, TW9 3AB, U.K. Vitrina is described from the It has rather chyuluensis spec. nov. Chyulu Hills, Kenya. a large shell and characterised fine is by a long spermathecal duct, very plicae between distal and is proximal parts of the penis, and a three-ridgedjaw. The description followed by a discussion on the classification ofEast African species of Vitrina and on the variation in characters proba- of taxonomic at level. The is concluded bly significance specific paper by some comments on naming Vitrina from East Africa. Key words: Gastropoda, Pulmonata, Vitrinidae, Vitrina, taxonomy, Kenya, East Africa. INTRODUCTION Quentin Luke during a botanical collecting expedition to the Chyulu Hills, Kajiado District, Kenya (02°39' S, 37°52' E), collected some helicarionoidsnails in montane forest on recent volcanic lava. I at first assumed that the seven specimens in the sample belonged the than the others. showed be to same species, one more mature Dissection it to a Chlamydarion Van Mol, 1970, which I could not match with described species. In order to features dissected further find had different verify certain I a specimen only to it a totally and fact four other anatomy was in a Vitrina as were specimens. One other was a juvenile I been Chlamydarion. have for many years attempting to make some sense of the East African of Vitrina and dissected from the species Draparnaud, 1801, numerous specimens East African highlands. -
Fauna of New Zealand Ko Te Aitanga Pepeke O Aotearoa
aua o ew eaa Ko te Aiaga eeke o Aoeaoa IEEAE SYSEMAICS AISOY GOU EESEAIES O ACAE ESEAC ema acae eseac ico Agicuue & Sciece Cee P O o 9 ico ew eaa K Cosy a M-C aiièe acae eseac Mou Ae eseac Cee iae ag 917 Aucka ew eaa EESEAIE O UIESIIES M Emeso eame o Eomoogy & Aima Ecoogy PO o ico Uiesiy ew eaa EESEAIE O MUSEUMS M ama aua Eiome eame Museum o ew eaa e aa ogaewa O o 7 Weigo ew eaa EESEAIE O OESEAS ISIUIOS awece CSIO iisio o Eomoogy GO o 17 Caea Ciy AC 1 Ausaia SEIES EIO AUA O EW EAA M C ua (ecease ue 199 acae eseac Mou Ae eseac Cee iae ag 917 Aucka ew eaa Fauna of New Zealand Ko te Aitanga Pepeke o Aotearoa Number / Nama 38 Naturalised terrestrial Stylommatophora (Mousca Gasooa Gay M ake acae eseac iae ag 317 amio ew eaa 4 Maaaki Whenua Ρ Ε S S ico Caeuy ew eaa 1999 Coyig © acae eseac ew eaa 1999 o a o is wok coee y coyig may e eouce o coie i ay om o y ay meas (gaic eecoic o mecaica icuig oocoyig ecoig aig iomaio eiea sysems o oewise wiou e wie emissio o e uise Caaoguig i uicaio AKE G Μ (Gay Micae 195— auase eesia Syommaooa (Mousca Gasooa / G Μ ake — ico Caeuy Maaaki Weua ess 1999 (aua o ew eaa ISS 111-533 ; o 3 IS -7-93-5 I ie 11 Seies UC 593(931 eae o uIicaio y e seies eio (a comee y eo Cosy usig comue-ase e ocessig ayou scaig a iig a acae eseac M Ae eseac Cee iae ag 917 Aucka ew eaa Māoi summay e y aco uaau Cosuas Weigo uise y Maaaki Weua ess acae eseac O o ico Caeuy Wesie //wwwmwessco/ ie y G i Weigo o coe eoceas eicuaum (ue a eigo oaa (owe (IIusao G M ake oucio o e coou Iaes was ue y e ew eaIa oey oa ue oeies eseac -
Amaia Caro Aramendia
The genus Pyrenaearia (Gastropoda, Helicoidea): Molecular and Morphological Systematics, Biogeography and Population Dynamics Pyrenaearia generoa (Gastropoda, Helicoidea): Sistematika Molekularra eta Morfologikoa, Biogeografia eta Populazio Dinamika PhD thesis Vitoria-Gasteiz, 2019 Amaia Caro Aramendia The genus Pyrenaearia (Gastropoda, Helicoidea): Molecular and Morphological Systematics, Biogeography and Population Dynamics Pyrenaearia generoa (Gastropoda, Helicoidea): Sistematika Molekularra eta Morfologikoa, Biogeografia eta Populazio Dinamika A thesis submitted by Amaia Caro Aramendia for the degree of Doctor of Philosophy, under the supervision of Dr. Benjamín Juan Gómez-Moliner and Dr. María José Madeira University of the Basque Country, Vitoria-Gasteiz, 2019 Zoologia eta Animalia Biologia Zelulen Saila Dpto. Zoología y Biología Celular Animal (cc)2019 AMAIA CARO ARAMENDIA (cc by-nc-nd 4.0) Astiro igo, barraskilotxo Fuji mendia da hau! Kobayashi Issa-ren haikua To the little things that run the world Esker onak Acknowledgements Tesi bat ez da pertsona bakar batena, bidean zehar laguntzen duten pertsona guztiei esker sortutako lana da eta, beraz, lehen orriek haien laguntza eskertzeko izan behar dute: En primer lugar me gustaría agradecer a mis directores, Benjamín Gómez-Moliner y María José Madeira. A Benjamín, por darme la oportunidad de entrar en el grupo de investigación y confiar en que podría realizar esta tesis. Gracias por compartir tus extensos conocimientos y por descubrirme el mundo de la malacología, que sin duda no habría encontrado por mi cuenta y ha resultado de lo más interesante. A Marijo, porque desde el principio y hasta el final has estado siempre ahí para guiarme, animarme y para ayudarme en todo lo que hiciese falta pero, sobre todo, por mostrarme que es posible compaginar este trabajo con una vida fuera de él. -
Presencia De Balea Heydeni Von Maltzan, 1881 (Gastropoda
Spira 6 (2016) 91–93 http://www.molluscat.com/spira.html Presencia de Balea heydeni von Maltzan, 1881 (Gastropoda: Clausiliidae) en Cantabria Jesús Ruiz Cobo1 & Sergio Quiñonero Salgado2,* 1Grupo de Espeleología e Investigaciones Subterráneas CarballoRaba, c/ Alcalde Arche s/n, 39600 Muriedas, Cantabria, Spain; 2Associació Catalana de Malacologia, Museu Blau, Plaça Leonardo da Vinci 45, 08019 Barcelona, Spain. Rebut el 5 de juliol de 2016 Acceptat el 2 d’octubre de 2016 © Associació Catalana de Malacologia (2016) Balea heydeni von Maltzan, 1881 es un molusco gasterópodo guignat, 1857 como un sinónimo de B. heydeni que tendría priori terrestre, perteneciente a la familia Clausiliidae, distribuido por dad. Sin embargo, por las razones aducidas por Gittenberger (2010) y buena parte del suroeste de Europa (Cadevall & Orozco, 2016). En Bank (2011), consideramos que el nombre correcto es Balea lucifuga España se conoce su presencia en Galicia y Asturias (Gittenberger Gray, 1824 (con distinta autoría), y que éste debe considerarse un et al., 2006; MartinezOrtí, 2006; Cadevall & Orozco, 2016). Aunque sinónimo posterior de Balea perversa. en Cantabria se ha citado Balea perversa (Linnaeus, 1758) (Altonaga Damos a conocer aquí la presencia de B. heydeni en las siguien et al., 1994; Cadevall & Orozco, 2016), a pesar de disponerse de un tes 18 localidades de Cantabria (Figuras 1–2). En todas ellas se en buen número de muestreos distribuidos por Cantabria, no hemos lo contraron conchas vacías en buen estado de conservación. Son las calizado esta especie. Todos los ejemplares del género Balea J.E Gray, siguientes, ordenadas aproximadamente de oeste a este: 1824 recolectados corresponden a B. -
Husbandry of the Carnivorous Land Snail, Powelliphanta Augusta (Gastropoda: Pulmonata: Rhytdidae)
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by ResearchArchive at Victoria University of Wellington Husbandry of the Carnivorous Land Snail, Powelliphanta augusta (Gastropoda: Pulmonata: Rhytdidae) By Thomas Edward Allan A thesis submitted to the Victoria University of Wellington in fulfillment of the requirements for the degree of Master of Science in Ecological Restoration Victoria University of Wellington 2010 1 Abstract Key aspects of the captive husbandry of Powelliphanta augusta, a newly-described New Zealand land snail are investigated: how they should be managed and fed to provide individuals for release, and how a long-term captive population can be maintained as an insurance against extinction in the wild. This project arises from almost all members of this species having been brought into captivity due to their displacement in the wild by an opencast coalmine. Powelliphanta (F: Rhytididae) is a genus of endemic carnivorous snails, which includes 10 species, 27 subspecies and numerous undescribed taxa. As well as its diversity, Powelliphanta is renowned for the large size of its members (up to 90mm diameter) and their attractively-patterned shells. Most taxa are threatened due to habitat loss and predation by introduced mammalian predators. The study commences with a literature review to refine husbandry methods and to assess requirements for captive breeding of snails. From this review investigations are made into stocking densities, substrate, reproductive biology, body condition and growth of the P. augusta captive population. To determine an appropriate stocking density for P. augusta groups of six snails were kept at two densities; with either 720cm2, or 1440cm2 per group. -
Table 7: Species Changing IUCN Red List Status (2010-2011)
IUCN Red List version 2011.2: Table 7 Table 7: Species changing IUCN Red List Status (2010-2011) Published listings of a species' status may change for a variety of reasons (genuine improvement or deterioration in status; new information being available that was not known at the time of the previous assessment; taxonomic changes; corrections to mistakes made in previous assessments, etc. To help Red List users interpret the changes between the Red List updates, a summary of species that have changed category between 2010 (IUCN Red List version 2010.4) and 2011 (IUCN Red List version 2011.2) and the reasons for these changes is provided in the table below. IUCN Red List Categories: EX - Extinct, EW - Extinct in the Wild, CR - Critically Endangered, EN - Endangered, VU - Vulnerable, LR/cd - Lower Risk/conservation dependent, NT - Near Threatened (includes LR/nt - Lower Risk/near threatened), DD - Data Deficient, LC - Least Concern (includes LR/lc - Lower Risk, least concern). Reasons for change: G - Genuine status change (genuine improvement or deterioration in the species' status); N - Non-genuine status change (i.e., status changes due to new information, improved knowledge of the criteria, incorrect data used previously, taxonomic revision, etc.) IUCN Red List IUCN Red Reason for Red List Scientific name Common name (2010) List (2011) change version Category Category MAMMALS Bradypus torquatus Maned Three-toed Sloth EN VU N 2011.1 Callicebus oenanthe San Martin Titi Monkey EN CR N 2011.1 Equus ferus Przewalski's Horse CR EN G 2011.2 -
Napaeus Bertheloti
The IUCN Red List of Threatened Species™ ISSN 2307-8235 (online) IUCN 2008: T156781A4996669 Napaeus bertheloti Assessment by: Groh, K. & Neubert, E. View on www.iucnredlist.org Citation: Groh, K. & Neubert, E. 2013. Napaeus bertheloti. The IUCN Red List of Threatened Species 2013: e.T156781A4996669. http://dx.doi.org/10.2305/IUCN.UK.2011-1.RLTS.T156781A4996669.en Copyright: © 2015 International Union for Conservation of Nature and Natural Resources Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the source is fully acknowledged. Reproduction of this publication for resale, reposting or other commercial purposes is prohibited without prior written permission from the copyright holder. For further details see Terms of Use. The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas A&M University; Wildscreen; and Zoological Society of London. If you see any errors or have any questions or suggestions on what is shown in this document, please provide us with feedback so that we can correct or extend the information provided. THE IUCN RED LIST OF THREATENED SPECIES™ Taxonomy Kingdom Phylum Class Order Family Animalia Mollusca Gastropoda Stylommatophora Enidae Taxon Name: Napaeus bertheloti (L. Pfeiffer, 1846) Taxonomic Notes: Napaeus subsimplex (Wollaston, 1878) from El Hierro has usually been considered as a synonym of Napaeus bertheloti.