On the Generality of the Latitudinal Diversity Gradient

@article{Hillebrand2004OnTG,
  title={On the Generality of the Latitudinal Diversity Gradient},
  author={Helmut Hillebrand},
  journal={The American Naturalist},
  year={2004},
  volume={163},
  pages={192 - 211}
}
  • H. Hillebrand
  • Published 15 January 2004
  • Environmental Science
  • The American Naturalist
The decline of biodiversity with latitude has received great attention, but both the concise pattern and the causes of the gradient are under strong debate. [] Key Method To test for significant variation in the gradient between organisms, habitats, or regions, a meta-analysis was conducted on nearly 600 latitudinal gradients assembled from the literature.
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Latitudinal gradients in stream invertebrate assemblages at a regional scale on Hokkaido Island, Japan
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Processes that can produce latitudinal gradients in the diversity of stream invertebrate assemblages are demonstrated, indicating that flood disturbance varying with latitude may influence abundance and local extinction rates of rare species, consequently affecting taxon richness and taxon diversity.
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Latitudinal gradient in species richness
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  • Environmental Science
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  • 2007
Scale effects and human impact on the elevational species richness gradients
TLDR
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References

SHOWING 1-10 OF 104 REFERENCES
Body size determines the strength of the latitudinal diversity gradient
TLDR
A comprehensive weighted meta-analysis on the strength of the latitudinal gradient in relation to body size implies that latitudinal gradients are shaped by non-equilibrium (regional) processes and are persistent under conditions of dispersal limitation.
A HEMISPHERIC ASSESSMENT OF SCALE DEPENDENCE IN LATITUDINAL GRADIENTS OF SPECIES RICHNESS
Considerable controversy surrounds the importance of historical, evolution- ary, and ecological factors affecting continental patterns in species richness. Although the importance of area and
GEOGRAPHICAL ECOLOGY AT THE COMMUNITY LEVEL: PERSPECTIVES ON THE DIVERSITY OF NEW WORLD BATS
TLDR
Although the absolute number of rare species in communities increased faster with latitude than did that of common species, both abundance classes proportionately increased with latitude in equivalent ways throughout the New World.
Latitudinal gradients in diversity: real patterns and random models
TLDR
Testing how well five mid-domain models predict observed latitudinal patterns of species richness, latitudinal extent and beta diversity in two groups of birds, parrots and woodpeckers, across the New World finds the fit of these models is uniformly poor for beta diversity and latitudinal range extent.
Multiscale assessment of patterns of avian species richness
  • C. RahbekG. Graves
  • Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 2001
TLDR
The data reinforce the hypothesis that terrestrial species richness from the equator to the poles is ultimately governed by a synergism between climate and coarse-scale topographic heterogeneity.
Regional and local impact on species diversity – from pattern to processes
TLDR
A meta-analysis on 63 relations obtained from the literature found that the studies published so far were highly biased towards larger organisms and towards high similarity between the local and regional area, and plots of SL to SR are not a suitable tool with which to infer the strength of local interactions.
LOCAL AND REGIONAL ZOOPLANKTON SPECIES RICHNESS: A SCALE‐INDEPENDENT TEST FOR SATURATION
Assemblages of coexisting species are formed by immigration from a re- gional pool of colonists and local interactions among species and with the physical envi- ronment. Theory suggests that the
Latitudinal difference in biodiversity caused by higher tropical rate of increase
  • M. BuzasL. CollinsS. Culver
  • Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 2002
TLDR
Examining tropical vs. temperate diversities from the Neogene to Recent using the within-habitat diversity measure Fisher's alpha of Cenozoic benthic foraminifera shows the need to consider both temperate and tropical components in global diversity assessments.
Evolution of taxonomic diversity gradients in the marine realm: evidence from the composition of Recent bivalve faunas
  • J. Crame
  • Environmental Science, Geography
    Paleobiology
  • 2000
TLDR
A taxonomic and stratigraphic analysis reveals that the steepest latitudinal gradients are associated with the youngest bivalve clades, providing further evidence that the Tropics have served as a major center of evolutionary innovation.
Seaweeds, latitudinal diversity patterns, and Rapoport's Rule
TLDR
This work analysed the geographic distribution species' tolerances, to abiotic conditions or to climatic variability and found that species in high diversity the pole to tropic species diversity gradient.
...
...