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Статті в журналах з теми "Terrestrial molluscs"

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Автор: Grafiati

Опубліковано: 14 березня 2023

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1

Čejka, Tomáš, Luboš Beran, Jaroslav Č. Hlaváč, Michal Horsák, Lucie Juřičková, Juraj Čačaný, Jana Buďová, et al. "Měkkýši Hostýnských vrchů [Molluscs of the Hostýnské vrchy Hills]." Malacologica Bohemoslovaca 17 (March 14, 2018): 17–27. http://dx.doi.org/10.5817/mab2018-17-17.

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Анотація:

This study deals with the molluscan fauna of the Hostýnské vrchy Hills (Central Moravia, Czech Republic). The main goal was to make a systematic inventory of the molluscan fauna in this area. Snails were collected in September 2010 by hand picking and litter sampling at selected sites. Final database was pooled with earlier published and unpublished data. In total, 85 terrestrial and 20 freshwater mollusc species were recorded at 56 study sites across the area during 2000–2010. Terrestrial snails Monachoides incarnatus, Punctum pygmaeum, Vitrina pellucida, and freshwater molluscs Pisidium casertanum, and Radix labiata were the most frequently recorded species. The land snails Daudebardia brevipes, Eucobresia nivalis, Vitrea transsylvanica, and Chondrula tridens are notable species from the local viewpoint. The clausilid Vestia ranojevici moravica, an endemic subspecies that colonized some regions of Moravia during the Holocene climatic optimum, is an iconic mollusc species in the area, deserving high conservation priority.

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2

Shepeleva, I. P. "Vitreous body of the camera-like eyes of terrestrial gastropod mollusks (Heterobranchia, Stylommatophora)." Ruthenica, Russian Malacological Journal 31, no. 2 (April 1, 2021): 93–104. http://dx.doi.org/10.35885/ruthenica.2021.31(2).5.

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Анотація:

Using the methods of light and electron microscopy, the morphological properties were studied, and the evolutionary changes in the vitreous body of the camera-like eyes of some species of terrestrial gastropod pulmonate molluscs were traced. It was demonstrated that all the considered properties of the vitreous body of molluscs are typical for terrestrial pulmonates. In the course of evolution, as a result of the land development by mollusks, the properties of their vitreous body have hardly changed.

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3

Dhora, D. "Mollusks of Albania." Archives of Biological Sciences 61, no. 3 (2009): 537–53. http://dx.doi.org/10.2298/abs0903537d.

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Анотація:

The checklist of Albanian mollusks contain 745 species: 345 species of marine molluscs of the Adriatic and Jonian seas, 156 species of freshwater mollusks (included the species of Shkodra, Ohrid and Prespa lakes) and 244 species of terrestrial molluscs, are registered in separate lists. The overview of Albanian mollusks is principally based on the numerous previous lists. It is adjourned with new data from recent publications. Some species, found for the first time in Albania, have been collected during our most recent investigations.

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4

Subba, Bharat Raj, and Tapan Kumar Ghosh. "Report on Some Terrestrial Molluscs from Different Regions of Nepal." Journal of Natural History Museum 23 (June 4, 2009): 78–81. http://dx.doi.org/10.3126/jnhm.v23i0.1842.

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Nine species of terrestrial molluscs were collected at eastern, mid western and far western regions of Nepal. The documented molluscan samples are represented with 4 families under three orders. Out of the total record of nine species, four species belonged to the family Ariophantidae, three species to Subulinidae, one species to Bradybaenidae and one to Veronicellidae.Key Words: Molluscs; Nepal; record; species; terrestrialJournal of Natural History Museum Vol. 23, 2008 Page 78-81

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5

MORLEY, N. J. "Aquatic molluscs as auxiliary hosts for terrestrial nematode parasites: implications for pathogen transmission in a changing climate." Parasitology 137, no. 7 (April 14, 2010): 1041–56. http://dx.doi.org/10.1017/s0031182010000016.

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SUMMARYNematodes are common parasites of molluscs but are often overlooked. Both metastrongyloid and rhabditoid species dominate the fauna within land snail and slug populations. Nevertheless, a key characteristic of many laboratory studies is the ability of these terrestrial nematodes to utilize aquatic molluscs as auxiliary hosts. The significance of this to the ecology of the parasite has never been evaluated. There is increasing concern as to the impact of climate change on the epidemiology of many parasitic diseases. In particular, it has been suggested that host switching may increase under the pressure of extreme climatic conditions. It is therefore timely to assess the role that aquatic molluscs may play in transmitting terrestrial nematodes, which include species of medical and veterinary importance such as Angiostrongylus cantonensis, A. vasorum, and Muellerius capillaris. The present review assesses the mechanisms of terrestrial nematode transmission through aquatic molluscs focusing on metastrongyloid and rhabditoid species, the importance of variable susceptibility of molluscan hosts, field studies on natural occurrence within aquatic habitats, and the impact of extreme climatic events (floods and droughts) that may increase in frequency under climate change.

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6

Shepeleva, I. P. "Morphological and optical properties and evolutionary changes of the eye lenses of terrestrial gastropod molluscs (Pulmonata, Stylommatophora)." Ruthenica, Russian Malacological Journal 28, no. 1 (March 2, 2018): 33–38. http://dx.doi.org/10.35885/ruthenica.2018.28(1).5.

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Morphological and optical properties were studied and also evolutionary changes of the eye lenses of some species of terrestrial gastropod pulmonate molluscs were traced. It was demonstrated that all examined properties of the lenses are typical for terrestrial pulmonates. In the course of evolution due to habitat shift by mollusks the lenses were changed only slightly.

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7

Mwitondi, Musa S., Albert S. Mjandwa, and Pastory M. Bushozi. "Mollusc Shells from Neolithic Contexts in the Lake Eyasi Basin, Northern Tanzania." Tanzania Journal of Science 47, no. 3 (August 14, 2021): 1086–101. http://dx.doi.org/10.4314/tjs.v47i3.19.

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The study of the Neolithic period in the Lake Eyasi Basin was dominated by attempts to formulate the area’s chronology, mobility, settlement patterns, subsistence, and cultural capabilities of Neolithic people as attested by domesticated animals, pottery, and lithic artefacts. Occasionally, studies on molluscs were mentioned, but rarely described in detail. Neolithic sites across the Lake Eyasi Basin have yielded remains of both terrestrial (gastropods) and freshwater mollusc shells (mussels). The abundance of mollusc shell remains in the archaeological records of the Lake Eyasi Basin have played a great role in chronological settings, mobility and community integrations, studies of settlement patterns, and other analyses. Mollusc remains have often been widely interpreted as a food supplement to other reliable food resources such as meat, vegetables and fish. Archaeological excavations and detailed analysis of the shells from Mumba rock shelter, Jangwani 3 and Laghangasimjega 2 have shown that molluscs played different roles. They were effectively used in tool manufacturing, as practical implements for handling objects, as scraping tools, as harpoons for fishing weapons, and sometimes for symbolism and in rituals. Terrestrial and freshwater molluscs coexisted in the Lake Eyasi Basin and were utilised equally by the Neolithic people during the Mid-Holocene period. Keywords: Mollusc shells; Neolithic; Lake Eyasi Basin; Northern Tanzania

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8

Do Duc, Sang, Son Nguyen Thanh, and Hue Nguyen Thi. "ANNOTATED CHECKLIST OF THE TERRESTRIAL MOLLUSCS (MOLLUSCA: GASTROPODA) FROM DONG VAN DISTRICT, HA GIANG PROVINCE, VIETNAM." Journal of Science Natural Science 66, no. 2 (June 2021): 162–76. http://dx.doi.org/10.18173/2354-1059.2021-0039.

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Анотація:

An annotated checklist of the terrestrial molluscs from Dong Van District is presented. The checklist combines data from all material collected from March 2018 to December 2020 and previous studies. The checklist provides an overview of the diversity of the terrestrial molluscs occurring in the Dong Van area. A total of 59 species representing 16 families are documented. Three species (or 5.08%) of these species are endemic to Ha Giang Province. A species recorded for Northern Vietnam and 28 species of the terrestrial molluscs for Ha Giang Province are herein published for the first time. We also briefly discuss the extent of diversity and endemism in the terrestrial molluscs of the Dong Van area.

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9

Guerino, L. R., J. F. Carvalho, L. A. Magalhães, and E. M. Zanotti-Magalhães. "Susceptibility of Biomphalaria glabrata submitted to concomitant infection with Angiostrongylus costaricensis and Schistosoma mansoni." Brazilian Journal of Biology 77, no. 3 (September 26, 2016): 451–58. http://dx.doi.org/10.1590/1519-6984.15215.

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Abstract The easy adaptation of Angiostrongylus costaricensis, nematode responsible for abdominal angiostrongyliasis to several species of terrestrial and freshwater molluscs and the differences observed in the interactions of trematodes with their intermediate hosts have induced us to study the concomitant infection of Biomphalaria glabrata with Schistosoma mansoni and A. costaricensis. Prior exposure of B. glabrata to A. costaricensis (with an interval of 48 hours), favored the development of S. mansoni, observing higher infection rate, increased release of cercariae and increased survival of molluscs, when compared to molluscs exposed only to S. mansoni. Prior exposure of B. glabrata to A. costaricensis and then to S. mansoni also enabled the development of A. costaricensis since in the ninth week of infection, higher amount of A. costaricensis L3 larvae was recovered (12 larvae / mollusc) while for molluscs exposed only to A. costaricensis, the number of larvae recovered was lower (8 larvae / mollusc). However, pre-exposure of B. glabrata to S. mansoni (with an interval of 24 hours), and subsequently exposure to A. costaricensis proved to be very harmful to B. glabrata, causing extensive mortality of molluscs, reduced pre-patent period to release cercariae and greater recovery of L3 A. costaricensis larvae.

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10

Inkhavilay, Khamla, Chirasak Sutcharit, Ueangfa Bantaowong, Ratmanee Chanabun, Warut Siriwut, Ruttapon Srisonchai, Arthit Pholyotha, Parin Jirapatrasilp, and Somsak Panha. "Annotated checklist of the terrestrial molluscs from Laos (Mollusca, Gastropoda)." ZooKeys 834 (April 3, 2019): 1–166. http://dx.doi.org/10.3897/zookeys.834.28800.

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Анотація:

The land area of Laos is composed of a large variety of undisturbed habitats, such as high mountainous areas, huge limestone karsts and the lower Mekong Basin. Therefore, Laos is expected to have a high species diversity, especially for the land snails. However, with respect to research on malacology, Laos is probably the least well-researched area for land snail diversity in Indochina (including Laos) over the past few centuries. The handful of species lists have never been systematically revised from the colonial period to the present, so these classifications are outdated. Herein we present the first comprehensive annotated checklist with an up-to-date systematic framework of the land snail fauna in Laos based on both field investigations and literature surveys. This annotated checklist is collectively composed of 231 nominal species (62 ‘prosobranch’ and 169 heterobranches), of which 221 nominal species are illustrated. The type specimens of 143 species from several museum collections and/or 144 species of newly collected specimens are illustrated. There are 58 species recorded as new to the malacofauna of the country, and two new replacement names are proposed as Hemiplectalanxangnica Inkhavilay and Panha, nomen novum (Ariophantidae) and Chloritiskhammouanensis Inkhavilay and Panha, nomen novum (Camaenidae). Four recently described species of the genus Amphidromus from Laos, “thakhekensis”, “richgoldbergi”, “attapeuensis” and “phuonglinhae” are synonymized with previously described species. In addition, thirteen nominal species are listed as uncertain records that may or may not occur in Laos. This annotated checklist may inspire malacologists to carry on systematic research in this region.

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11

Ewere, Endurance E., Amanda Reichelt-Brushett, and Kirsten Benkendorff. "Impacts of Neonicotinoids on Molluscs: What We Know and What We Need to Know." Toxics 9, no. 2 (January 22, 2021): 21. http://dx.doi.org/10.3390/toxics9020021.

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The broad utilisation of neonicotinoids in agriculture has led to the unplanned contamination of adjacent terrestrial and aquatic systems around the world. Environmental monitoring regularly detects neonicotinoids at concentrations that may cause negative impacts on molluscs. The toxicity of neonicotinoids to some non-target invertebrates has been established; however, information on mollusc species is limited. Molluscs are likely to be exposed to various concentrations of neonicotinoids in the soil, food and water, which could increase their vulnerability to other sources of mortality and cause accidental exposure of other organisms higher in the food chain. This review examines the impacts of various concentrations of neonicotinoids on molluscs, including behavioural, physiological and biochemical responses. The review also identifies knowledge gaps and provides recommendations for future studies, to ensure a more comprehensive understanding of impacts from neonicotinoid exposure to molluscs.

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12

Hodgson, Alan. "The Biology of Terrestrial Molluscs." African Zoology 37, no. 2 (October 2002): 259. http://dx.doi.org/10.1080/15627020.2002.11657181.

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13

Shepeleva, I. P. "Morphological and optical properties and evolutionary changes of tentacular epidermis and cornea of the eyes of terrestrial gastropod molluscs (Pulmonata, Stylommatophora)." Ruthenica, Russian Malacological Journal 28, no. 4 (October 26, 2018): 151–56. http://dx.doi.org/10.35885/ruthenica.2018.28(4).3.

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Morphological and optical properties of tentacular epidermis and cornea of the eyes of some species of terrestrial gastropod pulmonate molluscs were studied and their evolutionary transformations were estimated. It was demonstrated that all examined properties of tentacular epidermis and cornea of these species are typical for terrestrial pulmonates. In the course of evolution tentacular epidermis of terrestrial pulmonate molluscs was modified to less extent than cornea, and both these structures underwent minor changes in comparison with analogous structures of the eyes of marine prosobranch molluscs.

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14

Gedda, B. "Terrestrial mollusc succession and stratigraphy of a Holocene calcareous tufa deposit from the Fyledalen valley, southern Sweden." Holocene 16, no. 1 (January 2006): 137–47. http://dx.doi.org/10.1191/0959683606hl914rr.

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A Holocene calcareous tufa deposit in the Fyledalen Valley in southern Sweden was investigated with respect to molluscs, pollen, plant macrofossils and Coleoptera remains. The investigation recovered four mollusc species that today are severely threatened and included in the Swedish Red List of Endangered Species and/or the European Community's Natura 2000 programme. These include Vertigo genesii (Gredler), Vertigo geyeri Lindholm, Cochlicopa nitens (Gallenstein) and Vertigo moulinsiana (Dupuy). Tufa formation was initiated in the early Preboreal (after 11 500 cal. BP), when an open birch-pine forest dominated the area and stopped in the late Boreal (after 8800 cal. BP) when deciduous trees had become established. The presence of the molluscan species Vallonia pulchella (Müller), Columella columella (Martens), Vertigo genesii, Pupilla muscorum (L.) and Euconulus alderi (Gray), coupled with an almost complete lack of shade-demanding taxa, suggests an open marsh environment throughout the time of tufa deposition. The mollusc succession shows evidence of increasing temperature. Columella columella, commonly associated with open arctic-alpine habitats is present at the base of the profile in the early Preboreal, whilst Vertigo genesii, which commonly is associated with open arctic-alpine habitats or calcareous springs, persists until the mid-Boreal (∼ 8800 cal. BP). The tufa deposition ends when the regional groundwater levels rise, approximately 8800 cal. BP, more thermophilous molluscs, such as Vertigo moulinsiana and V angustior Jeffreys and the aquatic Bithynia tentaculata (L.), Radix peregra (Müller) and Planorbis planorbis (L.) colonize the site. Stratigraphic correlations, as well as faunal and floral comparisons, are made with nearby sites.

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15

Pieterse, A., A. P. Malan, and J. L. Ross. "Nematodes that associate with terrestrial molluscs as definitive hosts, includingPhasmarhabditis hermaphrodita(Rhabditida: Rhabditidae) and its development as a biological molluscicide." Journal of Helminthology 91, no. 5 (August 31, 2016): 517–27. http://dx.doi.org/10.1017/s0022149x16000572.

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AbstractTerrestrial molluscs (Mollusca: Gastropoda) are important economic pests worldwide, causing extensive damage to a variety of crop types, and posing a health risk to both humans and wildlife. Current knowledge indicates that there are eight nematode families that associate with molluscs as definitive hosts, including Agfidae, Alaninematidae, Alloionematidae, Angiostomatidae, Cosmocercidae, Diplogastridae, Mermithidae and Rhabditidae. To date,Phasmarhabditis hermaphrodita(Schneider, 1859) Andrássy, 1983 (Rhabditida: Rhabditidae) is the only nematode that has been developed as a biological molluscicide. The nematode, which was commercially released in 1994 by MicroBio Ltd, Littlehampton, UK (formally Becker Underwood, now BASF) under the tradename Nemaslug®, is now sold in 15 different European countries. This paper reviews nematodes isolated from molluscs, with specially detailed information on the life cycle, host range, commercialization, natural distribution, mass production and field application ofP. hermaphrodita.

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16

Podroužková, Štěpánka, Lucie Juřičková, Hana Hronová, Luboš Beran, Dagmar Říhová, and Vojen Ložek. "Měkkýši údolí horního a středního Kačáku [Molluscs of the upper and middle Kačák brook valley]." Malacologica Bohemoslovaca 14 (October 13, 2015): 74–90. http://dx.doi.org/10.5817/mab2015-14-74.

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A total of 95 species of molluscs were recorded in the Kačák brook valley (Central Bohemia, Czech Republic), in its upper and middle part. Most of the terrestrial survey was conducted in the woody part of the studied area, therefore woodland gastropods represent 31% of the total species number, followed by generalists, hygrophilous and steppe species. Only a few species belong to aquatic molluscs. Twenty four species belong to the Red List of mollusc species in the Czech Republic. Critically endangered Anisus vorticulus, endangered Pisidium amnicum and Unio crassus represent aquatic species. Very attractive are wetlands and marshes in the Kačák brook catchment area, hosting two vulnerable species: Vertigo angustior and V. antivertigo.

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17

Shepeleva, I. P. "Cellular composition, morphological characteristic and evolutionary changes of photoreceptor apparatus of the camera eyes of terrestrial gastropod molluscs (Heterobranchia, Stylommatophora)." Ruthenica, Russian Malacological Journal 30, no. 2 (April 5, 2020): 93–101. http://dx.doi.org/10.35885/ruthenica.2021.30(2).3.

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Cellular composition and morphology of components of photoreceptor apparatus of the retinae of camera eyes of some species of terrestrial gastropod pulmonate molluscs were studied and its evolutionary transformations were traced. It was demonstrated that all examined characteristics of photoreceptor apparatus of the most investigated species were normal for terrestrial pulmonates, while those of one species were special. Evolutionary transformations of photoreceptor apparatus of terrestrial pulmonate molluscs due to habitat shift were quite significant and concerned of its cellular composition and morphology of photoreceptor cells.

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18

Čiliak, Marek, and Jozef Šteffek. "Vyhodnotenie malakofauny z náplavov Neresnice (stredné Slovensko) [Interpretation of molluscan fauna from the Neresnica River flood deposits (Central Slovakia)]." Malacologica Bohemoslovaca 10 (November 23, 2011): 73–78. http://dx.doi.org/10.5817/mab2011-10-73.

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Sampling of flood debris deposits can be useful method in insufficiently surveyed areas. This sampling method also allows us to detect the presence of rare and endangered species in the study area. We studied flood debris along the Neresnica River to gather data on mollusc fauna of the Pliešovská Kotlina basin and the Javorie Mts. (Central Slovakia). In spring 2010, samples of flood debris were taken at three sites along the river. Molluscan thanatocoenoses were composed of 68 species (56 terrestrial and 12 aquatic ones). The most notable records were two subterranean species – Lucilla scintilla and L. singleyana, and also the species of nature conservation interest – Vertigo angustior. We found representatives of all ecological groups of molluscs, which provide the evidence of ecosystem diversity in various habitats along the river. We documented that the land use of the studied drainage basin was only partially reflected by the structure of mollusc assemblages from flood deposits.

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19

Forsyth, Robert G., and Michael J. Oldham. "Terrestrial molluscs from the Ontario Far North." Check List 12, no. 3 (May 1, 2016): 1881. http://dx.doi.org/10.15560/12.3.1881.

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From 2009–2014, incidental collections of terrestrial molluscs were made from the Far North of Ontario, Canada. Thirty-four species of terrestrial molluscs were identified from these collections, including one exotic species, Deroceras reticulatum, and three newly reported species from the Far North, Vallonia pulchella, Vertigo cf. genesii, and Gastrocopta similis. Vertigo cf. genesii is newly reported from Ontario. Some species have not been collected in Ontario for many years and some of these only once before. Subnational conservation ranks are discussed for higher-ranked species.

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20

Miller, Barry B., Donald F. Palmer, William D. McCoy, Alison J. Smith, and Mona L. Colburn. "A Pre-Illinoian Pleistocene Fossil Assemblage from Near Connersville, Southeastern Indiana." Quaternary Research 40, no. 2 (September 1993): 254–61. http://dx.doi.org/10.1006/qres.1993.1076.

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AbstractA fossil assemblage containing molluscs, ostracodes, and fish has been recovered from lacustrine sediments from near Connersville, southeastern Indiana. The reversed remanent magnetic signature of the sediments and the extent of isoleucine epimerization in molluscan shell protein indicate a pre-Illinoian age for the fossils. The fauna includes four taxa of fish, Coregonus sp., cf. Prosopium sp., cf. Thymallus arcticus, and Catostomus sp.; four taxa of ostracodes, Cytherissa lacustris, Candona caudata, Cyclocypris ampla, and Candona sp.; and 28 taxa of molluscs. Elements of the aquatic molluscs, fish, and ostracodes suggest a cool-water lake (8° to 16°C). The terrestrial molluscs include boreal species that now reach the southern limits of their range in the Great Lakes region near the north shore of Lake Superior and imply average summer temperatures of about 15°C near the lake margins. The lake may have been formed when West Lebanon ice advanced into the Anderson-New Castle Buried Valley system which drained northwest as a tributary of the Lafayette Bedrock Valley System.

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21

Balashov, Igor A., Sergey S. Kramarenko, Alexander V. Zhukov, Andrey N. Shklyaruk, Alexander A. Baidashnikov, and Alexey V. Vasyliuk. "Contribution to the knowledge of terrestrial molluscs in southeastern Ukraine." Malacologica Bohemoslovaca 12 (July 10, 2013): 62–69. http://dx.doi.org/10.5817/mab2013-12-62.

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Records of terrestrial molluscs collected in nine scattered sites in southeastern Ukraine are presented and discussed. The findings of non-native Helix lucorum and Lucilla singleyana are especially interesting. Coloration of H. lucorum in different parts of its range seems to be significantly different. A role of keel in species determination of collected Helicopsis sp. shells is discussed. Variability of Deroceras subagreste coloration is described. New data on a species composition of terrestrial molluscs in several protected areas is given.

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22

Naranjo-García, Edna, and Neil E. Fahy. "The Lesser Families of Mexican Terrestrial Molluscs*." American Malacological Bulletin 28, no. 1-2 (February 2010): 59–80. http://dx.doi.org/10.4003/006.028.0222.

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23

Horsák, Michal, Lucie Juřičková, Luboš Beran, Tomáš Čejka, and Libor Dvořák. "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]." Malacologica Bohemoslovaca 9, S1 (October 10, 2010): 1–37. http://dx.doi.org/10.5817/mab2010-9-s1-v2.

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Анотація:

In this paper we provide a new list of all the mollusc species recorded outdoors in the Czech and Slovak Republics. This work is a supplement of the Ložek’s key on molluscs of the former Czechoslovakia. For the species recorded after the publishing of the book, publications of their first records in the Czech and Slovak Republics are given. Species which are either not included in this Ložek’s book or whose current taxonomical status highly differs from that published in the book are supplied with Czech commentaries, photographs of their shells or bodies, and drawings of important identification characters. This material is aimed at Czech and Slovak malacologists to provide information, missing or scattered in the literature, on currently known mollusc fauna of the Czech and Slovak Republics. The Ložek’s book and this supplement should provide necessary information on identification, ecology and also distribution of all mollusc species currently known from the Czech and Slovak Republics. If the species names used in this paper differ from the ones used in the Ložek’s book, we mention both. So far 247 species of molluscs, including 219 species of gastropods (50 aquatic and 169 terrestrial) and 28 species of bivalves, have been found outdoors in the Czech Republic. The fauna of Slovakia comprises 247 species, including 219 gastropods (51 aquatic and 168 terrestrial) and 28 bivalves. Altogether 282 species occur in the Czech Republic and Slovakia, 212 of them being common to both countries.

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24

Horsák, Michal. "Měkkýši „Ženklavského lesa“ u Štramberka (Severní Morava) [The molluscs of the “Ženklavský les” forest near the town of Štramberk (North Moravia)]." Malacologica Bohemoslovaca 2 (July 10, 2003): 15–18. http://dx.doi.org/10.5817/mab2002-2-15.

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The molluscs of a previously unexplored site the “Ženklavský les” forest in North Moravia (Czech Republic) were investigated in 2002. Altogether 47 snail species were recorded (46 terrestrial and 1 aquatic). The molluscan fauna was dominated by woodland species including sensitive and endangered ones (e.g., Platyla polita, Sphyradium doliolum, Ruthenica filograna, Vitrea subrimata, and Daudebardia brevipes). The species Vertigo pusilla, and Vestia ranojevici moravica were encountered in the Štramberk environs for the first time and are of regional importance.

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25

Horsák, Michal. "Měkkýši „Ženklavského lesa“ u Štramberka (Severní Morava) [The molluscs of the “Ženklavský les” forest near the town of Štramberk (North Moravia)]." Malacologica Bohemoslovaca 2 (July 10, 2003): 15–18. http://dx.doi.org/10.5817/mab2003-2-15.

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Анотація:

The molluscs of a previously unexplored site the “Ženklavský les” forest in North Moravia (Czech Republic) were investigated in 2002. Altogether 47 snail species were recorded (46 terrestrial and 1 aquatic). The molluscan fauna was dominated by woodland species including sensitive and endangered ones (e.g., Platyla polita, Sphyradium doliolum, Ruthenica filograna, Vitrea subrimata, and Daudebardia brevipes). The species Vertigo pusilla, and Vestia ranojevici moravica were encountered in the Štramberk environs for the first time and are of regional importance.

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26

Kašovská, Kamila, and Jiří Kupka. "Měkkýši zrušené Státní přírodní rezervace Loucké rybníky (Slezsko, Česká republika) [Molluscs of the abolished reserve of the Loucké Rybníky ponds (Silesia, Czech Republic)]." Malacologica Bohemoslovaca 10 (November 11, 2011): 68–72. http://dx.doi.org/10.5817/mab2011-10-68.

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The Loucké Rybníky ponds State Nature Reserve was established in 1954 and due to negative effects of mining activities it was abolished in 1979. This article presents results of malacological survey in the Loucké Rybníky ponds (Karviná-Louky, Czech Republic) conducted in 2006 and 2007. The samples were collected at seven locations which match with sites sampled in 1954 and 1978; the location of sites were detected based on original schematic maps showing their position. The research was focused on aquatic species, terrestrial mollusc were collected only marginally. In 2006 and 2007, 38 mollusc species were found (35 gastropods and 3 bivalves), which include 17 species of aquatic molluscs and 21 terrestrial. Based on comparison with the data collected in 1954 and 1978 we conclude that the total destruction of aquatic habitats was irreversible and lead to changes in the species composition. Several rare and endangered species have extinct at this site and the total species richness of aquatic species decided from 29 to 17.

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27

Ororode, I. O. "Terrestrial molluscs species richness and diversity in Gashaka - Gumti National Park, Taraba State, Nigeria." Scientia Africana 21, no. 1 (June 1, 2022): 87–100. http://dx.doi.org/10.4314/sa.v21i1.8.

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To assess the biodiversity of terrestrial molluscs in Gashaka-Gumti National Park, a four plot (20 x 20m) each within the park were sampled by searching the forest floor, tree trunk, fallen logs, root facies, and vegetation for the presence of mollusks. The species found were collected by hand picking.A total of 819 specimens comprising 22 species belonging to six molluscan families were collected from four plots. Each plot yielded between 8 to14 species (Mean:10, Standard Deviation:2.71) and 33 to 683 individuals (Mean:204.75, Standard Deviation :319.09). The most abundant species in the park was Curvella sp. represented by 683 individuals (79.4%) of the total sampled species. The most abundant family is Streptaxidae represented by 8 species (36.4%) of the total sample.The sample intensity was 37.22 while the Inventory Completeness is 79.31%. Eleven (11) species occurred as singleton across plots while ten (10) species occurred as doubleton across the four plots sampled.The Whittaker Index is 4.00. The rarefaction curve nearly reached an asymptote as sampling stopped. The nonparametric estimator Chao 2 and jackknife 2 were 28.05 and 33.99 of all sample collected. The dendogram of similarity by plots using Bray-Curtis similarity of index show the close relationship of two plots in terms of species. It shows that there is no significant difference between plots. Plot 1 and 4(P=0.4329), Plot 2 and 3 (P=0.9595), Plot 1 and 3 (P=0.2390), Plot 2 and 4 (P= 0.78). In conclusion, the family Subulinidae has the most abundant individuals with 733 individuals representing 89.4% while Streptaxidae occur as the most abundant family with 8 species of the total sample.

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Albert, Deejay Daxter A., Velat Bujeng, and Stephen Chia. "Identification of Mollusc Remains (Bivalve and Gastropod) from Archaeological Sites in Semporna, Sabah." Tropical Life Sciences Research 33, no. 2 (July 15, 2022): 197–237. http://dx.doi.org/10.21315/tlsr2022.33.2.10.

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This paper discusses the identification of mollusc (bivalve and gastropod) remains from three archaeological sites in Semporna, Sabah, namely Bukit Tengkorak, Melanta Tutup and Bukit Kamiri, dated to the prehistoric period, from 3,000 to 800 years ago. Samples of mollusc remains used in this study were obtained from a series of archaeological excavations conducted at these three sites by the Centre for Global Archaeological Research, Universiti Sains Malaysia (CGAR, USM), Penang in collaboration with the Sabah Museum Department (SMD) from 1994 to 2007. In total, 90 taxa of molluscan species, of which 30 are bivalves and 60 are gastropods, had been identified. Out of 90, there were 55 taxa identified to the species level, of which 18 are bivalves and 37 are gastropods. They consisted mainly of marine species with small numbers of freshwater, brackish and terrestrial species. This study had provided new data and insights into the distribution and exploitation of molluscs by ancient human societies in different environments in Semporna, which will be useful not only for malacological research in the tropics but also for future biological and environmental studies in Sabah, Malaysia as well as for the Southeast Asian and Pacific regions.

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Mozzer, L. R., A. L. Coaglio, R. M. Dracz, V. M. A. Ribeiro, and W. S. Lima. "The development of Angiostrongylus vasorum (Baillet, 1866) in the freshwater snail Pomacea canaliculata (Lamarck, 1822)." Journal of Helminthology 89, no. 6 (December 29, 2014): 755–59. http://dx.doi.org/10.1017/s0022149x14000856.

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AbstractAngiostrongylus vasorum is a parasitic nematode that infects the heart and pulmonary artery and its branches of domestic and wild canids. The parasite can use several species of terrestrial and aquatic molluscs as intermediate hosts, although susceptibility varies. Pomacea canaliculata is a mollusc found in lakes, swamps and rivers in South America. In this study, we evaluated the susceptibility, parasite growth, oviposition and larval development of 282 P. canaliculata infected with 500 A. vasorum first-instar larvae (L1). From day 5 post-infection (pi) to day 30 pi, seven specimens per day were sacrificed to recover the larval instars. We compared 50 egg masses from infected and uninfected molluscs to determine the number of eggs per clutch, the hatching rate and the growth of the molluscs. The percentage of recovered larvae ranged from 39.17% to 67.5%. First-stage larvae (L1) were found until day 19 pi, second-stage larvae (L2) were found from days 11 to 25 pi, and third-stage larvae (L3) were recovered only after day 19 pi. Infected snails exhibited the most eggs during spawning, although the rate of hatching and shell size were lower in the infected snails compared with controls. This is the first report of an experimental infection of P. canaliculata with A. vasorum, and the results confirm the non-specificity of the nematode in relation to the intermediate host and indicate the importance of epidemiological surveys of this parasite and mollusc.

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Schikov, Evgenij V. "Some adventitious species of terrestrial molluscs Central Asia." Ruthenica, Russian Malacological Journal 27, no. 2 (April 11, 2017): 81–86. http://dx.doi.org/10.35885/ruthenica.2017.27(2).3.

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Limax flavus Linnaeus, 1758 not previously recorded in Central Asia was found in Uzbekistan. The total number of adventitious species in Central Asia is 12; six species are migrants from Asia (Caucasus); six from Europe. Nine species were found before 1990, while three after 1991. Seven species of these are slugs (58%); nine of adventitious species are kolonozoids, three - epecozoids.

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31

Gadaev, H. H. "SUSCEPTIBILITY OF TERRESTRIAL MOLLUSCS TO PROTOSTRONGYLUS SPP. INVASION." Theoretical & applied problems of agro-industry 42, no. 4 (December 2019): 54–57. http://dx.doi.org/10.32935/2221-7312-2019-42-4-54-57.

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32

Balashov, I., M. Yarotskaya, J. Filatova, I. Starichenko, and V. Kovalov. "Terrestrial Molluscs of the Tsyr-Pripyat Area in Volyn (Northern Ukraine): the First Findings of the Threatened Snail Vertigo Moulinsiana in Mainland Ukraine." Vestnik Zoologii 51, no. 3 (June 27, 2017): 251–58. http://dx.doi.org/10.1515/vzoo-2017-0031.

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Abstract 26 species of terrestrial molluscs were found in the studied area, including the rare and globally threatened Vertigo moulinsiana that is listed in “Habitats Directive” of the EU and in numerous red lists. Until now it was known in Ukraine only by one population in the Crimea that became extinct in 2014. Its conservation status, taking threats into account, is considered to be “Critically Endangered” on the national level in Ukraine. The characteristics of the phytocenoses to which it is restricted and the associated molluscan faunas are discussed.

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Esposito, Giuseppe, Paolo Pastorino, and Marino Prearo. "Environmental Stressors and Pathology of Marine Molluscs." Journal of Marine Science and Engineering 10, no. 3 (February 23, 2022): 313. http://dx.doi.org/10.3390/jmse10030313.

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34

Héra, Zoltán. "On experiences in monitoring molluscs (Mollusca) in the area of Duna-Dráva National Park." Natura Somogyiensis, no. 7 (2005): 25–34. http://dx.doi.org/10.24394/natsom.2005.7.25.

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Researching Mollusc fauna forms part of biomonitoring investigation in the Duna-Dráva National Park aiming study of protected and invasive species, water and terrestrial fauna. As a result of this investigation, the occurance of new protected species Vertigo angustior Jeffreys, 1830, Vertigo moulinsiana Dupuy, 1840 or their accurate habitat in this area have become known. Recording frequency circumstances of basic fauna and expansion of newly introduced species Potamopyrgus antipodarum (Gray, 1843), Arion lusitanicus Mabille, 1868, Anodonta woodiana (Lea, 1834) - is repeated every year.

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35

Agudo-Padrón, Aisur Ignacio. "Updated and referenced inventory of invasing exotic molluscs that occur in the State of Santa Catarina/ SC, Central Southern Brazil region." Brazilian Journal of Animal and Environmental Research 5, no. 4 (November 7, 2022): 3710–27. http://dx.doi.org/10.34188/bjaerv5n4-022.

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Introduction: Biological invasions, from molluscs among others, have been recognized as one of the greatest threats to biodiversity in the world, and when non-native species invade, they can modify the structure of the community and the functioning of ecosystems, in addition to representing a serious socio-economic threat. Objective: Updated general review of the inventory of invasive exotic molluscs occurring in the southern Brazilian state of Santa Catarina/ SC. Methodology: An unprecedented organization of a reference database comprising the total knowledge generated around the topic in just over two decades of systematic regional research. Results and conclusions: Regional total confirmed and registered of 31 taxa/ species of invasive exotic molluscs (five (5) Bivalvia marihnos & 26 continental forms: nine (9) freshwater – five (5) Gastropoda & four (4) Bivalvia – as well as 17 terrestrial/ terrestrial Gastropoda), all verified through the global platform "MolluscaBase", taxonomically included in 29 genera (22 Gastropoda & 7 Bivalvia) and 21 families (15 Gastropoda & 4 Bivalvia), including additional information about their biogeographic distribution known in the territorial space of the State.

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Herrera-Uria, Jane. "A checklist of terrestrial molluscs (Mollusca: Gastropoda) from Sierra Bibijagua, Isla de la Juventud, Cuba." Check List 12, no. 5 (September 28, 2016): 1968. http://dx.doi.org/10.15560/12.5.1968.

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Sierra Bibijagua are marmoreal elevations located on northern Isla de la Juventud (Island of Youth), southwestern Cuba. Isla de la Juventud is the largest island (2,200 km²) of the Canarreos Archipelago, Greater Antilles. A checklist of terrestrial molluscs recorded from Sierra Bibijagua is presented, including the following information: synonymy, type locality, updated distribution, endemism, and photographs of shells and living individuals whenever possible. The checklist comprises 12 families and 16 genera currently known from the area, including six new records: Farcimen procer, Leidyula floridana, Liguus fasciatus, Subulina octona, Glandinella poeyana, and Bradybaena similaris.

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37

Gensytskyi, M. "Distribution characteristics of terrestrial molluscs in the northwestern Azov." Ecological Sciences 34, no. 7 (2021): 175–83. http://dx.doi.org/10.32846/2306-9716/2021.eco.7-34.29.

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Morley, N. J., and J. W. Lewis. "The influence of climatic conditions on long-term changes in the helminth fauna of terrestrial molluscs and the implications for parasite transmission in southern England." Journal of Helminthology 82, no. 4 (December 2008): 325–35. http://dx.doi.org/10.1017/s0022149x0802645x.

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AbstractThe influence of climatic conditions on the prevalence and transmission of helminth parasites in a terrestrial mollusc population was studied in a grassland site in southern England between 1974 and 1983. Molluscs were sampled in each September of 5 years over this period (1974, 1976, 1979, 1981, 1983). Climatic conditions had a variable effect on parasite prevalence. Trematode sporocyst infections increased after wet summer and warm winter conditions and declined in hot, dry periods. Cestode infections increased after combined wet spring and summer weather and low winter temperatures, although trematode metacercariae and nematode infections were less likely to be influenced by climate. The effects on parasite transmission were undertaken by comparing parasite prevalences in the principal definitive hosts, the common shrew (Sorex araneus) and the wood mouse (Apodemus sylvaticus) in the same habitat over the period 1973–1983. Changes in parasite prevalences in the molluscan population were rarely replicated by changes in the small mammal population, except for trematode parasites in small mammals during a period of severe drought in 1976. These results suggest that only long-term persistent modifications in climate are likely to affect host–parasite dynamics.

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39

BARRATT, JOEL, DOUGLAS CHAN, INDY SANDARADURA, RICHARD MALIK, DEREK SPIELMAN, ROGAN LEE, DEBORAH MARRIOTT, JOHN HARKNESS, JOHN ELLIS, and DAMIEN STARK. "Angiostrongylus cantonensis: a review of its distribution, molecular biology and clinical significance as a human pathogen." Parasitology 143, no. 9 (May 26, 2016): 1087–118. http://dx.doi.org/10.1017/s0031182016000652.

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SUMMARYAngiostrongylus cantonensisis a metastrongyloid nematode found widely in the Asia-Pacific region, and the aetiological agent of angiostrongyliasis; a disease characterized by eosinophilic meningitis.Rattusrats are definitive hosts ofA. cantonensis, while intermediate hosts include terrestrial and aquatic molluscs. Humans are dead-end hosts that usually become infected upon ingestion of infected molluscs. A presumptive diagnosis is often made based on clinical features, a history of mollusc consumption, eosinophilic pleocytosis in cerebral spinal fluid, and advanced imaging such as computed tomography. Serological tests are available for angiostrongyliasis, though many tests are still under development. While there is no treatment consensus, therapy often includes a combination of anthelmintics and corticosteroids. Angiostrongyliasis is relatively rare, but is often associated with morbidity and sometimes mortality. Recent reports suggest the parasites’ range is increasing, leading to fatalities in regions previously consideredAngiostrongylus-free, and sometimes, delayed diagnosis in newly invaded regions. Increased awareness of angiostrongyliasis would facilitate rapid diagnosis and improved clinical outcomes. This paper summarizes knowledge on the parasites’ life cycle, clinical aspects and epidemiology. The molecular biology ofAngiostrongylusspp. is also discussed. Attention is paid to the significance of angiostrongyliasis in Australia, given the recent severe cases reported from the Sydney region.

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40

Horáčková, Jitka, Vojen Ložek, Luboš Beran, Lucie Juřičková, Štěpánka Podroužková, Jiří Peterka, and Martin Čech. "Měkkýši údolí Vltavy (Čechy) [Mollusc fauna of the Vltava River valley (Bohemia)]." Malacologica Bohemoslovaca 13 (April 24, 2014): 12–105. http://dx.doi.org/10.5817/mab2014-13-12.

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The recent mollusc assemblages of the Vltava River, the longest river in the Czech Republic (430 km), and its valley were studied (South and Central Bohemia). Altogether, 162 species of terrestrial and freshwater molluscs representing 65% of the total Czech malacofauna, were recorded at 532 sites studied between 1940 and 2013. Considering high species richness and diversity of mollusc fauna, the Vltava River valley ranks among the malacologically richest areas in the Czech Republic despite (1) the strong migration barrier of the nine dams on the upper and middle river stretches, (2) the long-term human influence in a whole river valley during the Holocene and, (3) the intensive agriculture in the lower part of the river floodplain. The river phenomenon, partly developed in the upper river stretch and fully developed in the middle part of the river, is the leading cause of such remarkable species richness.

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RADY, GAD H., AHMED A. ABDELGAWAD, SHEHATA A. ISMAIL, and MOHAMED H. LOKMA. "ECOLOGY OF SOME TERRESTRIAL MOLLUSCS IN SHARKIA AND ISMAILIA GOVERNORATE." Egyptian Journal of Agricultural Research 92, no. 3 (June 15, 2014): 907–20. http://dx.doi.org/10.21608/ejar.2014.156353.

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42

Rae, Robbie, Cyrille Verdun, Parwinder S. Grewal, Jamie F. Robertson, and Michael J. Wilson. "Biological control of terrestrial molluscs usingPhasmarhabditis hermaphrodita—progress and prospects." Pest Management Science 63, no. 12 (2007): 1153–64. http://dx.doi.org/10.1002/ps.1424.

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Richardson, A. M. M., R. Swain, and V. Wong. "Relationship between the crustacean and molluscan assemblages of Tasmanian saltmarshes and the vegetation and soil conditions." Marine and Freshwater Research 49, no. 8 (1998): 785. http://dx.doi.org/10.1071/mf97097.

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The crustacean and molluscan fauna of 65 saltmarshes around the Tasmanian coast were sampled at three tidal levels and in three broad vegetation types, and the salinity and organic and moisture content of the substratum were measured concurrently. Of the 55 species of crustaceans and molluscs collected, eight (four snails, three amphipods and a crab) were confined to saltmarshes. Ordination of the animal data grouped the sites by the degree of submersion, whereas ordination of the vegetation data grouped them by the salinity of the substratum. The faunal composition could not be predicted by the plant communities on a marsh, nor were there any strong relationships between individual animal and plant species. Most crustaceans and molluscs tolerated a wide range of soil conditions, but terrestrial species such as landhoppers and woodlice were not associated with highly saline substrata. Emergent marshes (as identified by the faunal analysis) tend to be most common in the north-east and on Flinders Island, whereas submergent marshes are found all round the coast. Reedy brackish marshes (as identified by the vegetation analysis) are almost entirely confined to the west coast.

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Forsyth, Robert G., and Dwayne A. W. Lepitzki. "Terrestrial snails (Gastropoda: Pulmonata) from Writing-on-Stone Provincial Park, Alberta, Canada." Check List 11, no. 3 (April 22, 2015): 1636. http://dx.doi.org/10.15560/11.3.1636.

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There are few studies on the terrestrial molluscs of the Great Plains of Alberta. Nearly all previously published surveys have focused on the faunas of the Rocky Mountain Foothills, the Cypress Hills, the Parklands of Central Alberta, or the boreal forests. By means of hand-picking and litter samples, we surveyed for the first time the terrestrial snail fauna in the Writing-on-Stone Provincial Park, southern Alberta, Canada. From among the hoodoos (weathered rock formations) and along the cliffs on the north side of the Milk River, we found terrestrial snails at four of our five sites within the hot, dry valley of the river. Our study confirms our assumptions that the terrestrial snail fauna in these hostile habitats lacks diversity.

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Petros, Peter, Matthias Heilweck, and David Moore. "Saving the Planet with Appropriate Biotechnology: 5. An Action Plan." Mexican Journal of Biotechnology 6, no. 2 (April 1, 2021): 1–60. http://dx.doi.org/10.29267/mxjb.2021.6.2.1.

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We evaluate suggestions to harness the ability of calcifying organisms (molluscs, crustacea, corals and coccolithophore algae) to remove permanently CO2 from the atmosphere into solid (crystalline) CaCO3 for atmosphere remediation. Here, we compare this blue carbon with artificial/industrial Carbon dioxide Capture & Storage (CCS) solutions. An industrial CCS facility delivers, at some cost, captured CO2, nothing more. But aquaculture enterprises cultivating shell to capture and store atmospheric CO2 also produce nutritious food and perform many ecosystem services like water filtration, biodeposition, denitrification, reef building, enhanced biodiversity, shoreline stabilisation and wave management. We estimate that a mussel farm sequesters three times as much carbon as terrestrial ecosystems retain. Blue carbon farming does not need irrigation or fertiliser, nor conflict with the use of scarce agricultural land. Blue carbon farming can be combined with restoration and conservation of overfished fisheries and usually involves so little intervention that there is no inevitable conflict with other activities. We calculate that this paradigm shift (from ‘shellfish as food’ to ‘shellfish for carbon sequestration’) makes bivalve mollusc farming and microalgal farming enterprises, viable, profitable, and sustainable, alternatives to all CCUS industrial technologies and terrestrial biotechnologies in use today.

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Magomedova, M. Z. "FEATURES OF THE GEOGRAPHICAL DISTRIBUTION OF TERRESTRIAL MOLLUSCS IN THE CAUCASUS." South of Russia: ecology, development 10, no. 2 (2015): 90–105. http://dx.doi.org/10.18470/1992-1098-2015-2-90-105.

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47

Skujiene, Grita. "An overview of the data on the terrestrial molluscs in Lithuania." Folia Malacologica 10, no. 1 (March 10, 2002): 1–7. http://dx.doi.org/10.12657/folmal.010.001.

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Danilova, I. S. "Heliceculture as a new promising direction of agriculture in Ukraine." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 24, no. 97 (November 5, 2022): 44–47. http://dx.doi.org/10.32718/nvlvet-a9707.

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Heliculture (also sometimes called heliculture or simply snail farming) is the human activity of collecting, breeding, and growing edible species of land snails for food and cosmetic purposes. The meat and caviar of snails are eaten, and the mucus is used as a cosmetic. Breeding snails in artificial conditions is a profitable business that few people know about and which can bring a lot of pleasure and a good income. In our country, snails are exotic, and in many European countries this product is common and often eaten. The most famous species of edible land snail can be considered the grape snail Helix pomatia, also sometimes called the Burgundy snail. This species, however, is not suitable for commercial breeding. The two most popular species for commercial breeding are Cornu aspersum, also known as Helix aspersa muller, and Helix aspersa maxima. Intensive fishing of the mollusk Helix pomatia in Ukraine has led to the fact that the world's natural resources have been drastically reduced, which is why this type of mollusk needs careful attention. A number of scientists and farmers prove the prospects of obtaining extracts from the mucus of terrestrial molluscs and the production of medicinal and cosmetic preparations based on them. However, the population of this species in natural conditions has sharply decreased, in connection with which there is a need for artificial breeding of terrestrial molluscs. It is necessary to take into account that snails are a specific product that must be constantly improved and made competitive. It is for these purposes to carry out large-scale mating and breeding of snails with the aim of further processing of caviar and mucus for pharmaceuticals and cosmetology. It is necessary to have sufficient experience in this field and a good organization of work, which will allow the producer to offer a wide range of snail meat, both ready-made products for food purposes, and stock of mother herds for breeding by the next generation of starting farms.

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Suárez-Mozo, Nancy, Mark Brenner, William Kenney, Misael Díaz Asencio, Jason Curtis, Marco Aquino-Lopez, Edlin Guerra-Castro, and Nuno Simões. "Molluscs Across Space and Through Time in a Hypersaline Coastal Lagoon, Mexico." Bulletin of the Florida Museum of Natural History 60, no. 2 (February 16, 2023): 120. http://dx.doi.org/10.58782/flmnh.frvf2187.

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Biotic remains have been used in paleoecological studies to provide information on past environmental conditions. Death assemblages can be used to make inferences about past environmental conditions if modern optima and ranges of taxa are known. Gaps in knowledge about historical biotic changes often stem from a paucity of information regarding species distributions, community species richness and evenness, community structure, ecological interactions, and possible factors that caused past biotic shifts. We studied mollusc assemblages in sediment cores from Río Lagartos coastal lagoon (Mexico) and compared them to present-day mollusc communities to gain insights into environmental changes that occurred in the lagoon throughout the last century. A total of 18,779 mollusc specimens, representing 20 bivalve and 45 gastropod species, and belonging to 32 families and 48 genera, were identified in three short sediment cores collected from the coastal lagoon in 2017. Molluscs in the sediment cores were compared to an inventory of modern fauna from the lagoon, which was collected along a salinity gradient in 2017 and 2018 to link species distributions with environmental variables. Mollusc communities from the sediment cores and present-day datasets possess the same ubiquitous species and feeding guilds. Nearly twice as many species, however, were identified in the sediment cores as in the present-day inventory. We report differences in mollusc abundance and taxonomic composition in the cores across space and time, which may be related to the salinity gradient in the lagoon, temporal shift in salinity, and recent human-mediated modifications of the nearby terrestrial environment. Biotic changes driven by shifts in salinity could have been reduced salinity. Such inputs may have been driven by hurricanes, along with associated high wind velocities and geomorphologic transformations. This paleobiology study will be of use for future conservation efforts in the coastal lagoon.

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WAUGH, C. A., J. F. LINDO, J. LORENZO-MORALES, and R. D. ROBINSON. "An epidemiological study of A. cantonensis in Jamaica subsequent to an outbreak of human cases of eosinophilic meningitis in 2000." Parasitology 143, no. 9 (April 13, 2016): 1211–17. http://dx.doi.org/10.1017/s0031182016000640.

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SUMMARYThe infection status of angiostrongylosis in Jamaica was assessed in wild rats and molluscs in the 5 years following the major outbreak of eosinophilic meningitis (EM) in 2000. Parasitological analyses of 297 Rattus rattus and 140 Rattus norvegicus, and 777 terrestrial molluscs from all 14 Parishes on the island revealed Angiostrongylus cantonensis in 32·0% of the rats and in 12·5% of the molluscs. Multivariate analyses confirmed that A. cantonensis occurred significantly more frequently in R. rattus (Odds Ratio [OR] = 1·76), while mean infection intensity in R. rattus was also significantly higher (16·8) than R. norvegicus (11·3) (Mann–Whitney U-test: P = 0·01). Third-stage larvae of A. cantonensis were detected in 29% of 86 Pleurodonte spp.; in 20% of five Poteria spp.; in 18·7% of 369 Thelidomus asper; in 11% of 18 Sagda spp.; and in 6% of 24 veronicellid slugs. Most rodent infections occurred in Northeastern Jamaica (OR = 11·66), a region where infected molluscs were also abundant. Given the prevalence of A. cantonensis infection in rats has significantly increased since the 2000 outbreak, and that a survey of human infections revealed at least ten autochthonous cases in the last 15 years, angiostrongylosis persists as an important zoonosis in Jamaica.

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