Rarefaction approach to analyzing distribution patterns of species richness along altitudinal gradients: a case study with arborous species data

2011 ◽  
Vol 19 (5) ◽  
pp. 581-588 ◽  
Author(s):  
Xing Kaixiong ◽  
Kang Muyi ◽  
Wang Qiang ◽  
Duan Jin ◽  
Dai Cheng
Keyword(s):  
Species Richness ◽  
Distribution Patterns ◽  
Altitudinal Gradients

Distribution Patterns and Climatic Explanations of Species Richness of Vascular Plants in Xinjiang, China

2011 ◽  
Vol 28 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Li-ping LI ◽  
Nurbay Abdusalih ◽  
Shao-peng WANG ◽  
Zhi-heng WANG ◽  
Zhi-yao TANG
Keyword(s):  
Species Richness ◽  
Vascular Plants ◽  
Distribution Patterns

FRESHWATER GASTROPODA FROM ARGENTINA: SPECIES RICHNESS, DISTRIBUTION PATTERNS, AND AN EVALUATION OF ENDANGERED SPECIES

Malacologia ◽  
2006 ◽  
Vol 49 (1) ◽  
pp. 189-208 ◽  
Author(s):  
Alejandra Rumi ◽  
Diego E. Gutiérrez Gregoric ◽  
Verónica Núñez ◽  
Inés I. César ◽  
M. Andrea Roche ◽  
...  
Keyword(s):  
Species Richness ◽  
Endangered Species ◽  
Distribution Patterns

Distribution of moss-inhabiting diatoms along an altitudinal gradient at sub-Antarctic Îles Kerguelen

2007 ◽  
Vol 19 (1) ◽  
pp. 17-24 ◽  
Author(s):  
Niek J.M. Gremmen ◽  
Bart van de Vijver ◽  
Yves Frenot ◽  
Marc Lebouvier
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
Altitudinal Gradient ◽  
Cross Validation ◽  
Strong Relationship ◽  
Distribution Patterns ◽  
Common Species ◽  
Important Variable ◽  
Diatom Species ◽  
Expected Species Richness

Altitudinal gradients provide excellent opportunities to study relationships between species distribution and climatic variables. We studied the species composition of 39 samples of moss-inhabiting diatoms, collected at 50 m intervals from 100–650 m above sea level. The samples contained a total of 130 diatom species, of which 51 occurred in 10 or more samples. Altitude appeared to be the most important variable explaining variation in species composition. Of the 51 common species, 33 showed a significant relationship with altitude. Although the majority of the latter declined with increasing altitude, for nine species the probability of occurrence first increased with increasing elevation, but decreased again at higher altitudes, and four species increased systematically with elevation. As a result, expected species richness per sample decreased from an estimated 43 at 100 m to 25 species per sample at 650 m. Diatom distribution patterns proved to be suitable predictors of the altitudinal position of sample sites. Cross-validation yielded a strong relationship between predicted and observed altitudes.

scholarly journals Species richness and conservation gap analysis of karst areas: A case study of vascular plants from Guizhou, China

2018 ◽  
Vol 16 ◽  
pp. e00460 ◽  
Author(s):  
Bo Liu ◽  
Mei Zhang ◽  
W. Rainer Bussmann ◽  
Hui-ming Liu ◽  
Ying-ying Liu ◽  
...  
Keyword(s):  
Species Richness ◽  
Vascular Plants ◽  
Gap Analysis ◽  
Karst Areas

scholarly journals Energy–water and seasonal variations in climate underlie the spatial distribution patterns of gymnosperm species richness in China

2020 ◽  
Vol 10 (17) ◽  
pp. 9474-9485
Author(s):  
Bikram Pandey ◽  
Janak R. Khatiwada ◽  
Lin Zhang ◽  
Kaiwen Pan ◽  
Mohammed A. Dakhil ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Species Richness ◽  
Seasonal Variations ◽  
Distribution Patterns ◽  
Spatial Distribution Patterns

Cretaceous foraminiferal morphogroup distribution patterns, palaeocommunities and trophic structures: a case study from the Sergipe Basin, Brazil

1990 ◽  
Vol 81 (3) ◽  
pp. 221-246 ◽  
Author(s):  
Eduardo A. M. Koutsoukos ◽  
Malcolm B. Hart
Keyword(s):  
Feeding Strategy ◽  
Distribution Patterns ◽  
Selection Response ◽  
Individual Characteristics ◽  
Northeastern Brazil ◽  
Direct Response ◽  
Strategy Versus ◽  
Trophic Strategy ◽  
Adaptive Morphology

Foraminiferal studies have been used in palaeo-environmental reconstructions of the marine Cretaceous succession (upper Aptian to Maastrichtian) of the Sergipe Basin, in northeastern Brazil. The foraminiferal assemblages show broadly three types of response to changes in environment: (1) variations in morphotypes of the taxa present; (2) changes in specific and generic diversity; and (3) changes in relative abundance.Twelve palaeocommunities, characterised by the relative dominance of the major foraminiferal groups, can be recognised in the succession. Their palaeoenvironmental distribution is proposed as a model with reference to the Sergipe Cretaceous sequence.An intimate relationship is inferred among foraminiferal association distribution patterns, trophic structures (community feeding strategy, dwelling habits, substrate niche patterns) and water-mass conditions (depth-related in part). It is suggested that the distribution patterns may be a direct response of the functional adaptive morphology of the foraminiferal tests to individual characteristics of behavioural structure (preferential dwelling microhabitat and trophic strategy versus environment). The approach is a simple, yet very powerful tool, for the interpretation of foraminiferal palaeocommunities and palaeoceanographic research. It may also permit interpretation of palaeocommunity strategies in terms of adaptation rate and selection response (i.e. “r-selection” versus “k-selection”) to variable environmental conditions.

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