The determinants of land snail diversity along a tropical elevational gradient: insularity, geometry and niches

@article{Liew2009TheDO,
  title={The determinants of land snail diversity along a tropical elevational gradient: insularity, geometry and niches},
  author={Thor-Seng Liew and Menno Schilthuizen and Maklarin bin Lakim},
  journal={Journal of Biogeography},
  year={2009},
  volume={37}
}
Aim  We investigated the patterns of species richness in land snails and slugs along a tropical elevational gradient and whether these patterns correlate with area, elevation, geographic constraints, and productivity. We did so both at the scale at which land snail population processes take place and at the coarser scale of elevational zones. 
Terrestrial gastropod diversity in an alpine region: disentangling effects of elevation, area, geometric constraints, habitat type and land-use intensity
Elevational gradients have proven to be useful to examine key factors shaping species diversity patterns. Th is study examines the eff ects of elevation, area, geometric constraints, habitat type,
Elevational patterns and determinants of plant diversity in the Baekdudaegan Mountains, South Korea: Species vs. functional diversity
TLDR
The study suggests that different elevational patterns may be observed among different diversity measurements even in the same taxon and that there may be fundamental differences in the mechanisms underlying these diversity patterns.
Tropical metacommunities along elevational gradients: effects of forest type and other environmental factors
Elevational gradients provide a natural experiment for assessing the extent to which the structure of animal metacommunities is molded by biotic and abiotic characteristics that change gradually, or
Species richness and meta-community structure of land snails along an altitudinal gradient on Bioko Island, Equatorial Guinea
TLDR
A lack of clustering of the occurrences of different snail species along the altitudinal gradient indicated a Gleasonian meta-community structure with individualistic responses of the various species to environmental parameters, including temperature, which are strongly correlated with altitude.
Uncovering the environmental factors that influence diversity patterns of Mediterranean terrestrial Gastropod communities: a useful tool for conservation
AbstractLand snails are an important component of biodiversity but the information regarding the factors that influence their distribution is very incomplete or anecdotal in most geographic areas. In
Population, Community, and Metacommunity Dynamics of Terrestrial Gastropods in the Luquillo Mountains: a Gradient Perspective
TLDR
Population- and community-level attributes of biodiversity changed gradually, and paralleled variation in total gastropod abundance and net primary productivity in general, and similar mechanisms explain both elevational variation and the differences between mixed forest and palm forest transects.
Biodiversity and metacommunity structure of animals along altitudinal gradients in tropical montane forests
TLDR
This review of altitudinal gradients in tropical montane regions found that species richness generally decreased with increasing altitude, although not always in a linear fashion, and gradients of biodiversity differed among dimensions (taxonomic, phylogenetic and functional) as well as among faunas (bats, rodents, birds).
Turnover and nestedness in subtropical dung beetle assemblages along an elevational gradient
TLDR
Spatial and temporal turnover of dung beetle species is the most important component of β‐diversity along the elevational gradient, and high‐elevation assemblages are not subsets of assemblaging that inhabit lower elevations, but this relationship ceases when β‐Diversity is measured at the generic level.
Diversity patterns in the land-snail fauna of Afromontane forest in the Rwenzori Mountains in Uganda
TLDR
The change of the composition of the land-snail communities along the altitudinal gradient is not completely gradual, but there is a rapid turnover in parallel with the transition from the montane rainforest zone to the bamboo zone.
Altitudinal patterns and determinants of plant species richness on the Baekdudaegan Mountains, South Korea: common versus rare species
TLDR
The study suggests that the mid-domain effect is a better predictor for wide-ranging species such as common species, whereas climatic variables are more important factors for range-restricted species suchAs rare species.
...
...

References

SHOWING 1-10 OF 54 REFERENCES
Multi‐scale altitudinal patterns in species richness of land snail communities in south‐eastern France
Aim  Species richness is an important feature of communities that varies along elevational gradients. Different patterns of distribution have been described in the literature for various taxonomic
Land‐snail faunas of afromontane forests of Mount Kenya, Kenya: ecology, diversity and distribution patterns
To (1) describe the distribution patterns of land‐snails occurring in afromontane forest habitats on Mount Kenya, in relation to elevation and aspect; (2) explore the relations between the land‐snail
Latitudinal gradients in species diversity: the search for the primary cause
TLDR
Hypotheses that attempt to explain latitudinal gradients in species diversity are reviewed and include explanations assuming different degrees of competition, mutualism, predation, epiphyte load, epidemics, biotic spatial heterogeneity, host diversity, population size, niche width, population growth rate, environmental harshness, and patchiness at different latitudes.
Areas, cradles and museums: the latitudinal gradient in species richness.
  • Chown, Gaston
  • Environmental Science
    Trends in ecology & evolution
  • 2000
Macroecology: The Division of Food and Space Among Species on Continents
Analyses of statistical distributions of body mass, population density, and size and shape of geographic range offer insights into the empirical patterns and causal mechanisms that characterize the
Global patterns in biodiversity
TLDR
This work states that the distribution of biodiversity across the Earth can be described in terms of a relatively small number of broad-scale spatial patterns, and theory is developing rapidly, improving in its internal consistency, and more readily subjected to empirical challenge.
LATITUDINAL GRADIENTS OF BIODIVERSITY:Pattern,Process,Scale,and Synthesis
TLDR
An extensive survey of the literature is conducted and a synthetic assessment of the degree to which variation in patterns is a consequence of characteristics of scale or taxon is provided.
The Relationship Among Area, Elevation, And Regional Species Richness In Neotropical Birds
  • C. Rahbek
  • Environmental Science
    The American Naturalist
  • 1997
TLDR
Elevational turnover rates and numbers of shared species between zones suggested that the hump‐shaped pattern relects geometric constraints (as predicted by the null model) imposed by the narrow span of the gradient, and it is suggested that midelevational zones may represent sink habitats.
Eastern Pacific molluscan provinces and latitudinal diversity gradient: no evidence for "Rapoport's rule".
TLDR
Latitudinal ranges of eastern Pacific marine molluscan species are analyzed, and species diversity gradients and range magnitudes appear to vary independently, with the spatial distribution of major oceanographic barriers exerting a strong influence on latitudinal ranges.
...
...