Robert A D Cameron

Robert A D Cameron
The University of Sheffield | Sheffield · Department of Animal and Plant Sciences

PhD

About

184
Publications
60,943
Reads
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4,273
Citations
Introduction
Research interests in ecology, evolution and Biogeography of land molluscs, including Quaternary history. Currently involved in studies on the recent fauna of Madeira and the Azores, and on Quaternary/Pleistocene faunas on Madeira. Also ecological genetics of Cepaea populations in various European locations.
Additional affiliations
October 1998 - present
The University of Sheffield
Position
  • Professor
January 1998 - present
Natural History Museum, London
Position
  • Research Associate
April 1994 - September 1998
The University of Sheffield
Position
  • Professor (Full)
Education
September 1964 - December 1967
The University of Manchester
Field of study
  • Ecology
September 1961 - June 1964
University of Oxford
Field of study
  • Zoology

Publications

Publications (184)
Article
Late Quaternary deposits containing fossil snail shells were sampled from nine sites on Deserta Grande and three on Bugio, two of the three Desertas Islands in the oceanic Madeiran archipelago. In total, 3,432 shells representing 45 species or subspecies were retrieved. Calibrated amino acid racemization yielded ages ranging from > 45 to 6 ka, with...
Article
Fruticicola fruticum (O. F. Müller, 1774), a medium-sized helicoid snail in the Camaenidae, has a wide range in Europe, reaching from the Urals and the Caucasus to the Balkans, and from the southern part of Scandinavia, through Central Europe to eastern and central France and northern Italy. There are numerous studies on its distribution, biology,...
Article
Full-text available
Among ten adult specimens of the Madeiran endemic land snail Leptaxis simia kept in the laboratory, a single clutch of 110 eggs was reared, and the mortality, growth and reproductive capacity of hatchlings over a 1240- day period were monitored. Of 70 hatchlings, 34 survived to complete shell growth at around 640 days. Growth was rapid, and mortali...
Article
Full-text available
Trochulus is a genus of European land snail with a complex and disputed taxonomy and an intricate evolutionary history. Many species and subspecies were described only on the basis of shell morphology, which is highly variable, such that the shell morphology of many species and subordinate taxa appear to overlap that of others. In resolving the phy...
Article
Land snails are one of the most diverse groups of terrestrial animals and are commonly used as model organisms in ecology, biogeography and conservation biology. Despite being poor dispersers, they form crucial components of island faunas and exhibit high percentages of endemism. Insular land snails are also among the most threatened animals on Ear...
Article
A revised and annotated checklist of the living and Quaternary land snails of the Desertas Islands, Madeiran Archipelago, is presented, incorporating recent published work and records previously unpublished. 55 species have been recorded on the Desertas, of which 36 were alive and 41 were found as Quaternary fossils. Only four species are widesprea...
Article
Full-text available
Cepaea nemoralis is a recently introduced species on Öland. Discounting an early and debateable record, the species has been recorded only in the 21st century, despite intensive earlier faunistic surveys. A recent survey has yielded records from the whole length of the island (137 km), but the majority of known populations are in its southern half,...
Article
Melanopsidae were collected from 23 localities in central and south-eastern Europe, the Aegean Islands and Israel. This study considered Melanopsis from the Aegean Islands, the Peloponnese and Israel, and Esperiana esperi, Holandriana holandrii and Microcolpia from continental Europe. Shells and radulae were described and illustrated, showing conti...
Article
New sites containing fossil-rich Quaternary deposits have been discovered on Deserta Grande and Bugio, islands in the Madeiran Archipelago, Portugal. Examination of these, together with a reassessment of earlier collections, has led to the identification and description of 6 new species and 2 new subspecies. The revised taxonomy involves species in...
Article
Understanding the properties of time averaging (age mixing) in a stratigraphic layer is essential for properly interpreting the paleofauna preserved in the geologic record. This work assesses the age and quantifies the scale and structure of time averaging of land snail-rich colluvial sediments from the Madeira Archipelago (Portugal) by dating indi...
Article
A countrywide data set of 1048 samples of the European land snail Cepaea nemoralis (L.) from Poland was assembled from both published and unpublished sources. Analyses of shell colour and banding polymorphism revealed distinctive patterns of variation. While the frequency of brown shells showed a clear geographical pattern related to climate, other...
Article
The polymorphic land snail Cepaea hortensis was introduced to the city of Sibiu, central Romania, in the first decade of the 20th century and has spread widely across the city. A total of 97 locations were examined in 2017 across the city to determine the habitat preferences and variation in shell size, shape, colour and banding polymorphism of C....
Conference Paper
Desertas islands (Madeira: Portugal), a small sub-archipelago (14,21 km2) of three islets (Ilhéu Chão, Deserta Grande and Bugio) located in the Macaronesian region of Portugal, encompasses a rich land snail fauna, the majority endemic to the Madeira archipelago and exclusive to the islands. Although geologically young (3.2–3.6 Ma), the extant faun...
Conference Paper
Desertas islands (Madeira: Portugal), a small sub-archipelago (14,21 km2) of three islets (Ilhéu Chão, Deserta Grande and Bugio) located in the Macaronesian region of Portugal, encompasses a rich land snail fauna, the majority endemic to the Madeira archipelago and exclusive to the islands. Although geologically young (3.2–3.6 Ma), the extant faun...
Article
Previously in this journal, Altaba (2015) presented an original hypothesis on the dispersal of small wetland snails in Central Europe after the Last Glacial Maximum, based on the discovery of rare species of the genus Vallonia at the foot of the Devín Hill (Slovakia). On the basis of the evidence available to us, it is our opinion that the existenc...
Article
Twenty-nine forest sites in six sampling areas in the Banat region of Romania, adjacent to Serbia, were sampled to obtain inventories of their snail faunas and to make comparisons between these and previously studied faunas in the mountains from the Sudetes in the north-west to the Southern Transylvanian Carpathians in the south. 65 species were re...
Article
Aim Morphological and taxonomic diversity are intuitive measures of biological diversity. Previous studies have shown discordance between these measures at large spatial and temporal scales, but the implications of this pattern for the underlying processes are not understood. Using oceanic archipelagos as spatial units, we examine potential links b...
Article
Full-text available
The European land snail Cepaea nemoralis was introduced into Burlington, New Jersey, USA by William G. Binney in 1857 with specimens from near Sheffield, England. First in 1869 and later in 1878, Binney noted that the species had become widespread throughout the city. Between 1908 and 1933, Henry A. Pilsbry collected a large number of C. nemoralis...
Article
Full-text available
Data from a number of surveys of land snails on islands off the Adriatic coast of Croatia are used to investigate the nature of the island species-area relationships (ISARs) both among larger islands and, in greater detail, among 83 islets in the Kornati archipelago. These islands and islets are all continental, and separated from the mainland no m...
Article
Full-text available
Although present since the mid 19th century, the introduced snail species Cepaea nemoralis has spread extensively in Göteborg, mainly in the last two decades. Early samples show the predominance of yellow-shelled morphs, but in modern populations pink shells predominate. There is great variation in morph frequencies among modern populations with hi...
Article
Full-text available
The globally significant Caucasus hotspot of biological diversity holds a rich and largely endemic fauna of land molluscs. Georgia holds the majority of these regional endemics. Land molluscs are particularly sensitive indicators of habitat quality and faunal diversity. In this study, we examine the extent to which the existing network of protected...
Article
The land snail faunas of 26 forest sites and two open rocky sites in the Crimean Mountains were sampled in 2011. Of the 40 species found within the forests (about half the known fauna of Crimea as a whole), 28 were species with wide western Palaearctic distributions, and only eight were endemic to Crimea. While there were significant differences in...
Article
Full-text available
The shell-colour and banding polymorphism of Cepaea hortensis has attracted less attention than that of its congener C. nemoralis. While the Evolution Megalab acquired many records of its variation, those submitted by amateurs were unreliable, and hence it was impossible to analyse possible changes over time. Nevertheless, the Megalab database reve...
Data
Full-text available
the genus Atlantica from the Madeiran islands contains two species, A. gueriniana, endemic on Madeira island and A. calathoides, endemic to the desertas. they have been regarded as members of the discidae. the hitherto unknown genital anatomy of A. calathoides is described here from study of specimens collected on deserta Grande. comparisons with J...
Article
Full-text available
The genus Atlantica from the Madeiran Islands contains two species, A. gueriniana, endemic on Madeira Island and A. calathoides, endemic to the Desertas. They have been regarded as members of the Discidae. The hitherto unknown genital anatomy of A. calathoides is described here from study of specimens collected on Deserta Grande. Comparisons with J...
Article
Populations of the polymorphic land snail Cepaea nemoralis (L.) from Deepdale, Derbyshire, UK, sampled in 1965–67, showed a pattern of area effects, with steep clines among groups of populations differing in shell colour and banding morph frequencies. In 2010, most of these populations were resampled. In particular, a continuous transect made in 19...
Article
Full-text available
Changes in morph frequency over time in sand‐dune populations of Cepaea nemoralis in the British Isles have been examined using the Evolution Megalab database. Frequencies in colonies on a sand dune at Berrow, Somerset were estimated in 2008–9. This extends a survey started in 1926 by A. E. Boycott and C. Diver and continued in the mid‐20th Century...
Article
Full-text available
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