Assessing the magnitude of species richness in tropical marine environments: exceptionally high numbers of molluscs at a New Caledonia site

  title={Assessing the magnitude of species richness in tropical marine environments: exceptionally high numbers of molluscs at a New Caledonia site},
  author={Philippe Bouchet and Pierre Lozouet and Philippe Maestrati and Virginie H{\'e}ros},
  journal={Biological Journal of The Linnean Society},
Earlier studies in the tropical Indo-Pacific have grossly underestimated the richness of macrofauna species at spatial scales relevant to conservation and management as a result of insufficient collecting and sorting effort. A massive collecting effort involving 400 day-persons at 42 discrete stations on a 295-km2 site on the west coast of New Caledonia, south-west Pacific, revealed 2738 species of marine molluscs. This is several times the number of species recorded from any area of comparable… 
The challenge of small and rare species in marine biodiversity surveys: microgastropod diversity in a complex tropical coastal environment
As species numbers are often used to promote the conservation interest of a reef, a bay or a stretch of coast, it is essential to know how the numbers were generated: absolute numbers of species are meaningless unless sampling effort and techniques, area surveyed, and size classes targeted are described.
Diversity patterns of bivalves in a coral dominated shallow-water bay in the northern Red Sea – high species richness on a local scale
Two-hundred-and-forty-three bivalve species were recognized; this is the highest number of species reported to date for any coastal area of comparable size, and species accumulation curves suggest that the full range of species in the bay was considerably under-estimated.
Assessing species richness of macrofauna associated with macroalgae in Arctic kelp forests (Hornsund, Svalbard)
The high numbers of species and the common occurrence of colonial forms (Bryozoa, Hydrozoa) in the current study show that these taxa cannot be omitted in macrobenthic diversity surveys performed within kelp habitats.
Spatial patterns of soft-sediment benthic diversity in subtropical Hong Kong waters
It is shown that patterns of diversity depend considerably on which element of biodiversity is measured, and molluscs were more restricted in their distribution than the other dominant groups, whereas polychaetes had the highest proportion of widespread species.
Invertebrate diversity of the unexplored marine western margin of Australia: taxonomy and implications for global biodiversity
It is shown that infaunal macrofauna (crustaceans and polychaetes) of the lower bathyal depth range are underrepresented among available data and documented results from Australia, and estimates of global species, however made, are based on limited data.
Quantifying regional biodiversity in the tropics: A case study of freshwater fish in Trinidad and Tobago
Extinction rates are predicted to accelerate during the Anthropocene. Quantifying and mitigating these extinctions demands robust data on distributions of species and the diversity of taxa in
Species richness and biogeographical affinities of the marine molluscs from Bahía de Chamela, Mexico
The range distribution of each species was reviewed and updated, thus finding that seven species have extended their ranges of geographic distribution.
Exceptional biodiversity of the cryptofaunal decapods in the Chagos Archipelago, central Indian Ocean.
Land Snail Diversity Of the Savanna/Forest Mosaic In Lopé National Park, Gabon
Overall snail abundance was low, and most species were minute, and suggestions for maximizing mollusc inventories in tropical forests are proposed.


Marine bivalves of the Florida Keys: discovered biodiversity
Abstract A survey of marine bivalve biodiversity in the Florida Keys, an island archipelago off southern Florida, was compiled from original collecting, museum specimens and the literature. Assembly
Molluscan biodiversity in the Indian River Lagoon, Florida
Using available collection and literature resources, the mollusks of the Indian River lagoonal system, central eastern Florida, were inventoried based largely on material collected during 1974-1982 and supported the presence of a zoogeographic transition zone and established 14 new distributional records.
Deep-Sea Species Richness: Regional and Local Diversity Estimates from Quantitative Bottom Samples
The deep-sea communities of the continental slope and rise off the eastern coast of the United States have a remarkably high diversity-measured regionally or locally either as species richness or as
Evolution of taxonomic diversity gradients in the marine realm: evidence from the composition of Recent bivalve faunas
  • J. Crame
  • Environmental Science, Geography
  • 2000
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.
It is concluded that current estimates of Arthropod species numbers are grossly underestimated; that there could be as many as 30 million species extant globally, not 1.5 million a, usually estimated.
The composition and relationships of the marine molluscan fauna of the Pitcairn Islands
The recent expedition has doubled the number of marine molluscs known from the Pitcairn Islands, and most of this increase results from a vastly improved knowledge of the small taxa that had been neglected in earlier surveys.
Global-scale latitudinal patterns of species diversity in the deep-sea benthos
LATITUDINAL gradients of species diversity are ubiquitous features of terrestrial and coastal marine biotas, and they have inspired the development of theoretical ecology1–3. Since the discovery of
Soft-sediment benthic community structure in a coral reef lagoon -- the prominence of spatial heterogeneity and 'spot endemism'
Focusing on the soft-sediment assemblages within the lagoon of the Great Astrolabe Reef (Fiji), quantified pat- terns, clines and variability of community structure across space and evaluated models for marine bio- diversity conservation based on the spatial distribution and rarity of benthic species.
The marine mollusks of Easter Island (Isla de Pascua) and Sala y Gómez
Rehder, Harald A. The Marine Mollusks of Easter Island (Isla de Pascua) and Sala y Gomez. Smithsonian Contributions to Zoology, number 289, 167 pages, 15 figures, 14 plates, 1 table, 1980.—As the
Local versus global diversity of microorganisms : cryptic diversity of ciliated protozoa
Observations support the assumption that in the case of microorganisms everything is everywhere and that their global species diversity is relatively limited.