On the Relation Between Species and Area

Gleason, H. A.

doi:10.2307/1929150

Cited by 712 publications

(459 citation statements)

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“…One way to tackle the spatial processing of microbial diversification is to evaluate the empirical relationship between geographical distance and genetic similarity of microbial assembly 4,5 , also known as the distance-decay relationship or the taxa-area relationship (TAR) 6 . Application of the TAR has demonstrated that the species richness of eukaryotic macroorganisms increases with the sampling area 7 .…”

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“…Now, it is crucial to investigate whether spatial variations of soil bacterial communities observed on a wide scale comply with the Baas Becking postulate 1 involving solely environmental selection as related to habitat-related environmental heterogeneity, or if other ecological processes could be involved in these patterns (for example, dispersal in the context of Neutral Theory). In this context, at least two objectives might be reached, (i) determine the extent to which soil bacterial diversity increases with sampling area by applying TAR from local to wide scales 6,23 , and (ii) evaluate the link between biodiversity turnover, environmental heterogeneity and dispersal by confronting community and habitat diversity turnover rates.…”

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Turnover of soil bacterial diversity driven by wide-scale environmental heterogeneity

et al. 2013

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Spatial scaling and determinism of the wide-scale distribution of macroorganism diversity has been largely demonstrated over a century. For microorganisms, and especially for soil bacteria, this fundamental question requires more thorough investigation, as little information has been reported to date. Here by applying the taxa-area relationship to the largest spatially explicit soil sampling available in France (2,085 soils, area covered B5.3 Â 10 5 km 2 ) and developing an innovative evaluation of the habitat-area relationship, we show that the turnover rate of bacterial diversity in soils on a wide scale is highly significant and strongly correlated with the turnover rate of soil habitat. As the diversity of micro-and macroorganisms appears to be driven by similar processes (dispersal and selection), maintaining diverse and spatially structured habitats is essential for soil biological patrimony and the resulting ecosystem services.

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Turnover of soil bacterial diversity driven by wide-scale environmental heterogeneity

et al. 2013

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“…For the sake of interpreting the data, a calendar year was divided into three main seasons, pre monsoon (February-May), monsoon (June-September), and post monsoon (October-January). Biodiversity indices such as species diversity, richness and evenness were calculated following the standard formulae (Shannon and Weaver, 1963;Gleason, 1992;Pielou, 1966).…”

Section: Benthic Sampling and Analytical Methodsmentioning

confidence: 99%

Biodiversity and seasonal variation of benthic macrofauna in Minicoy Island, Lakshadweep, India

2014

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From the Indian coast only limited data are available on the benthic fauna of the seagrass communities. In this study, seasonal variation in the distribution of macrobenthos and influence of environmental parameters was explored at four seagrass beds and two mangrove stations along the Minicoy Island, Lakshadweep, India, from September 1999 to August 2001. A total of 160 macrobenthic species from eight major groups represented the macrofauna of the Minicoy Island. Of the identified taxa, molluscs 70 (gastropods 41.46%, bivalves 7.5%), polychaetes 27 (16.88%), crustaceans 30 (18.75%), echinoderms 11 (6.88%) and remaining others. Average seasonal abundance of benthic macrofauna ranged from 219 to 711 ind./m 2 , species diversity varied from 1.45 to 3.64 bits per individual, species richness index ranged from 4.01 to 26.17, evenness 0.69 to 1.66. In general, the higher abundance and species diversity was noticed in southern seagrass stations and northern seagrass stations, but in the mangrove stations comparatively low species diversity was observed. Three-way analysis of variance indicated that all communities resulted as being significantly different between seagrass and mangrove station, mainly when the seasonal interaction was considered. Multivariate analyses were employed to help define benthic characteristic and the relationship between environmental parameters at the six monitoring stations. Results of cluster analyses and multidimensional scale plot suggest that for mangrove region, different physiographic provinces, lower salinity, dissolved oxygen and sediment biotic structure have a higher influence on the species composition and diversity than other oceanographic conditions.

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“…Fauna were identified and categorized to the lowest practical taxonomic level using standard references (Antony Fernando and Olivia Fernando 2002). The data was subjected to univariate analyses for studying the molluscan community structure using Shannon and Weaver (1949) for species diversity, Pielou (1966) for species dominance and evenness and Gleason (1992) was used to determine species richness. The Pearson correlation coefficient was used to study the affinity of benthic groups towards environmental parameters.…”

Section: Sample Collection and Laboratory Proceduresmentioning

confidence: 99%

Influence of environmental parameters on the distribution and diversity of molluscan composition in pondicherry mangroves, southeast coast of India

Satheeshkumar

Khan

2012

Ocean Sci. J.

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− Seasonal variation in the distribution of mollusks in relation to environmental parameters was studied at four mangrove stations on the Pondicherry coast during September 2008-August 2009. A total of 37 species of molluscs were recorded, among them 16 species of bivalves belonging to 7 families and 12 Genera, and 21 species of gastropods belonging to 14 families and 19 Genera, with the Cereithedia cingulata being the dominant group. An increase of species density and diversity in the Post monsoon season was observed, with the highest values for both indexes at stations 1 and 2, and the lowest at stations 3 and 4 fine where the sand assemblage was dominated by a few gastropods. Pollution indicator species Cassidula nucleus, Melampus ceylonicus, Sphaerassiminea minuta were found only in highly polluted regions near stations 3 and 4; they were totally absent in moderately polluted areas near stations 1 and 2. From a stepwise multivariate analysis of the different environmental parameters regarding molluscan density, it was found that in all 10 parameters govern the density variation of benthic mollusks in Pondicherry mangroves and that the organic matter of sediment and sulphide, DO, and salinity were the highly significant ones.

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On the Relation Between Species and Area

Cited by 712 publications

References 0 publications

Turnover of soil bacterial diversity driven by wide-scale environmental heterogeneity

Turnover of soil bacterial diversity driven by wide-scale environmental heterogeneity

Biodiversity and seasonal variation of benthic macrofauna in Minicoy Island, Lakshadweep, India

Influence of environmental parameters on the distribution and diversity of molluscan composition in pondicherry mangroves, southeast coast of India

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