The Species-Area Relations of Plant Communities

Hopkins, Brian

doi:10.2307/2257004

Cited by 83 publications

(58 citation statements)

References 20 publications

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“…Yet, these differences may also be related to the different total sampling areas (10 000, 625, and 25 m 2 for the tree, shrub, and herb layers, respectively). Studies have shown that the total number of species increases with sampling area, as indicated by the species-area relationship (Arrhenius 1921;Hopkins 1955;Preston 1962aPreston , 1962bKilburn 1966;MacArthur and Wilson 1967;Connor and McCoy 1979;Sugihara 1980;Pielou 1985;Williamson 1988;Brown 1995). Consequently, with increasing sampling area, the proportion of rare species (such as singletons) may decrease, whereas that of common species may increase, as shown in Fig.…”

Section: Discussionmentioning

confidence: 99%

Species Abundance in a Forest Community in South China: A Case of Poisson Lognormal Distribution

Yin¹,

Ren²,

Zhang³

et al. 2005

J Integrative Plant Biology

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Abstract:Case studies on Poisson lognormal distribution of species abundance have been rare, especially in forest communities. We propose a numerical method to fit the Poisson lognormal to the species abundance data at an evergreen mixed forest in the Dinghushan Biosphere Reserve, South China. Plants in the tree, shrub and herb layers in 25 quadrats of 20 m×20 m, 5 m×5 m, and 1 m×1 m were surveyed. Results indicated that: (i) for each layer, the observed species abundance with a similarly small median, mode, and a variance larger than the mean was reverse J-shaped and followed well the zero-truncated Poisson lognormal; (ii) the coefficient of variation, skewness and kurtosis of abundance, and two Poisson lognormal parameters (σ and µ) for shrub layer were closer to those for the herb layer than those for the tree layer; and (iii) from the tree to the shrub to the herb layer, the σ and the coefficient of variation decreased, whereas diversity increased. We suggest that: (i) the species abundance distributions in the three layers reflects the overall community characteristics; (ii) the Poisson lognormal can describe the species abundance distribution in diverse communities with a few abundant species but many rare species; and (iii) 1/σ should be an alternative measure of diversity.

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Section: Discussionmentioning

confidence: 99%

Species Abundance in a Forest Community in South China: A Case of Poisson Lognormal Distribution

Yin¹,

Ren²,

Zhang³

et al. 2005

J Integrative Plant Biology

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“…1988;Specht 2007) -far larger than the species-area-curves of open-structured plant communities that asymptote at about a hectare in area or less (Jaccard 1928;Hopkins 1955;Whittaker 1972Whittaker , 1977Specht & Specht 1999;Specht & Tyler 2010;Specht 2011).…”

Section: Foliage Projective Covermentioning

confidence: 99%

“…Alpha Biodiversity (species richness -N, number of species per unit area): The biodiversity of vascular plants in the plant community was recorded in random quadrats of increasing area (A) -the Species-Area Curve (Jaccard 1928, Hopkins 1955Whittaker 1972Whittaker , 1977 (Specht 1988a). As an even larger quadrat size of one hectare (10,000 m 2 ) ensured maximal assessment of biodiversity in Australian open-structured plant communities (Specht 2012), species richness per hectare was estimated by extrapolating the data from smaller quadrats, using Equation (3).…”

Section: Foliage Projective Covermentioning

confidence: 99%

Structure and Alpha Biodiversity of Major Plant Communities in South Africa, a Close Biogeographical Relation with Australia

Moll¹

2014

JEE

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During the short season of annual shoot growth, Foliage Projective Covers (FPCs) in both overstorey and understorey strata, coupled with leaf attributes (Leaf Specific Weight, Leaf Area), are determined by aerodynamic fluxes flowing over and through the plant community. These parameters determined the Evaporative Coefficient -the monthly ratio of actual to potential evapotranspiration per mm of available soil moisture. Maximal FPC is produced in habitats supplied with optimal soil moisture during this short season of shoot growth.Vertical growth of foliage shoots -the number of leaves per shoot and internode lengthsis determined in relation with available soil water and soil nutrients (especially phosphorus and nitrogen ions) during this seasonal growth. Ambient temperature is similarly concerned.The Leaf Area Index (area of all leaves per hectare) determines the interception of solar radiation -and hence net photosynthesis per hectare per annum. This energy-fixation by overstorey foliage determines the yearly growth of the producer, consumer and decomposer sections of the ecosystem. In turn, the biodiversity (number of species per hectare) of producers and resident consumers is determined. ISSN 2157-6092 2014 www.macrothink.org/jee 49 Wherever optimal soil water occurred in median-nutrient soils in the coastal subtropical region, closed-forests/scrubs developed containing 131 ± 11 species compared with 80-90 species per hectare in nearby open-forests. Journal of Environment and EcologyWherever optimal soil water occurred in nutrient-poor soils in the warm temperate region, closed-heathland (± tall proteoid shrubs) vegetation developed containing 90-135 species per hectare, compared with about 60 species per hectare in nearby open-heathlands.

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“…The biodiversity of vascular plants in the plant community was recorded in random quadrats of increasing area (A) -the Species-Area Curve (Jaccard 1928, Hopkins 1955Whittaker 1972). N = a Log 10 A + b…”

Section: Alpha Biodiversity (Species Richness -N Number Of Species Pmentioning

confidence: 99%

Structure and Alpha Biodiversity of Major Plant Communities in Chile, a Distant Gondwanan Relation

Montenegro¹,

Dettmann²

2015

JEE

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The structure, growth and biodiversity of Chilean vegetation are explored from the arid north, through the Mediterranean-climate zone of Central Chile to the evergreen and semi-deciduous Nothofagus vegetation in the south and into the treeless wet-heath vegetation of the Magellanic islands. The northern Desert Zone has four to six genera of plants that have been recorded in Australia, while the southern vegetation reveals many relationships with the cool temperate vegetation of Australia with which Chile was conjoined in the Gondwanan assembly during the Late Mesozoic. As the physico-chemical processes that determine the structure, growth and biodiversity of plant communities on median-nutrient soils are similar in the temperate climates of Chile and Australia, similar values of Foliage Projective Cover,

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The Species-Area Relations of Plant Communities

Cited by 83 publications

References 20 publications

Species Abundance in a Forest Community in South China: A Case of Poisson Lognormal Distribution

Species Abundance in a Forest Community in South China: A Case of Poisson Lognormal Distribution

Structure and Alpha Biodiversity of Major Plant Communities in South Africa, a Close Biogeographical Relation with Australia

Structure and Alpha Biodiversity of Major Plant Communities in Chile, a Distant Gondwanan Relation

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