The Estimation of Species Richness by Extrapolation

Palmer, Michael W.

doi:10.2307/1937387

Cited by 543 publications

(497 citation statements)

References 12 publications

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“…The major drawback of this method is the well known dependence of plant species presence on the size of the area sampled (Palmer 1990). Hence, it was necessary to document the site-specific relationship between local richness and sample area.…”

Section: Discussionmentioning

confidence: 99%

Effect of snow-cover duration on plant species diversity of alpine meadows on the eastern Qinghai-Tibetan Plateau

Chen

et al. 2008

J. Mt. Sci.

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Abstract:Although snow cover plays an important role in structuring plant diversity in the alpine zone, there are few studies on the relationship between snow cover and species diversity of alpine meadows on the eastern Qinghai-Tibetan Plateau. To assess the effect of snow cover on plant species diversity of alpine meadows, we used ten parallel transects of 60 m × 1 m for this study and described the changes in species diversity and composition associated with snow depth. With the division of snow depth into six classes, the highest species richness (S) and species diversity (H′) occurred with an intermediate snow depth, i.e., class III and class IV, showing a unimodal curve with the increase in snow depth. The relationship between snow depth and plant diversity (both richness and Shannon index) could be depicted by quadratic equations. There was no evident relationship between diversity (both S and H′) and soil water content, which implied that other more important factors influenced species diversity. The patterns of diversity found in our study were largely attributed to freeze-thaw alteration, length of growing season and disturbances of livestock grazing. Furthermore, snow depth affected species composition, as evaluated by the Sørensen's index of similarity. In addition, almost all species limited to one snow depth class were found only in class III and class IV, indicating that intermediate snow depth was suitable for the survival and growth of many alpine species.

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Section: Discussionmentioning

confidence: 99%

Effect of snow-cover duration on plant species diversity of alpine meadows on the eastern Qinghai-Tibetan Plateau

Chen

et al. 2008

J. Mt. Sci.

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“…Estimativa de riqueza. Na definição de estratégias para a priorização de áreas para conservação, a riqueza de espécies é a forma mais simples e fácil de se medir a diversidade de um local (Palmer 1990;Moreno & Halffter 2000;Halffter et al 2001;Chao 2004). Porém, em muitos casos, é impraticável enumerar diretamente as espécies (Colwell 2004).…”

Section: Curva De Acumulação De Espéciesunclassified

Fauna de Alticini (Newman) (Coleoptera, Chrysomelidae, Galerucinae) em diferentes estágios sucessionais na Floresta com Araucária do Paraná, Brasil: diversidade e estimativa de riqueza de espécies

Linzmeier¹,

Ribeiro-Costa²,

Marinoni³

2006

Rev. Bras. entomol.

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“…The “true” species richness in the study area was estimated using: (a) the first-order jackknife estimator (Heltshe & Forrester 1993; Palmer 1990):…”

Section: Methodsmentioning

confidence: 99%

Testing sampling effort and relative abundance descriptors of belowground ectomycorrhizal fungi in a UK planted scots pine woodland

Villarreal-Ruiz

Neri-Luna

2017

Mycology

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The native Caledonian pinewoods of Scotland, UK contain a unique and unexplored biodiversity of below-ground ectomycorrhizal fungi which may constitute a valuable source of microbial genetics resources for woodland restoration. In this study we test the sampling effort, taxa detection (ectomycorrhiza morpho-anatotyping) and relative abundance measurements (ectomycorrhizal root tip number vs. dry weight) of below-ground ectomycorrhizal fungal communities in a planted Pinus sylvestris Caledonian woodland. A total of 18 replicated sampling points were set up at differential distance along a 125 m transect, in a 50-yr-old, stem exclusion: thicket phase, Pinus sylvestris pinewood stand. A total of 11 ectomycorrhizal morpho-anatotypes were detected from 6689 ectomycorrhizal root tips counted and weighing 992.6 mg dry weight. The major ectomycorrhizal taxa were Meliniomyces bicolor and Cortinarius spp. accounting ~50% of total pine roots. A highly significant relationship (r2 = 0.16, p < 0.000) was found between Sørensen dissimilarity in soil cores and distance apart. In this study, the spatial arrangement of samples indicated that over short distances the dissimilarity was lower in contrast with the longer distances along the transect.

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The Estimation of Species Richness by Extrapolation

Cited by 543 publications

References 12 publications

Effect of snow-cover duration on plant species diversity of alpine meadows on the eastern Qinghai-Tibetan Plateau

Effect of snow-cover duration on plant species diversity of alpine meadows on the eastern Qinghai-Tibetan Plateau

Fauna de Alticini (Newman) (Coleoptera, Chrysomelidae, Galerucinae) em diferentes estágios sucessionais na Floresta com Araucária do Paraná, Brasil: diversidade e estimativa de riqueza de espécies

Testing sampling effort and relative abundance descriptors of belowground ectomycorrhizal fungi in a UK planted scots pine woodland

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