scholarly journals High beta diversity among small islands is due to environmental heterogeneity rather than ecological drift

2018 ◽  
Vol 45 (10) ◽  
pp. 2252-2261 ◽  
Author(s):  
Jinliang Liu ◽  
Mark Vellend ◽  
Zuhua Wang ◽  
Mingjian Yu
Keyword(s):  
Beta Diversity ◽  
Environmental Heterogeneity ◽  
Small Islands ◽  
High Beta ◽  
Ecological Drift

Influence of the environmental heterogeneity of breeding ponds on anuran assemblages from southeastern Brazil

2009 ◽  
Vol 87 (8) ◽  
pp. 699-707 ◽  
Author(s):  
T. S. Vasconcelos ◽  
T. G. Santos ◽  
D. C. Rossa-Feres ◽  
C.F.B Haddad
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
Beta Diversity ◽  
Environmental Heterogeneity ◽  
Null Model ◽  
Distinct Species ◽  
Southeastern Brazil ◽  
Similar Species ◽  
Anuran Species ◽  
High Beta

We hypothesized that the environmental heterogeneity of breeding ponds influences the species composition and species richness of anuran assemblages from southeastern Brazil, because it provides humidity, shelter, and breeding microhabitats for anuran species, which can result in an increasing number of species in a given habitat. To begin, we tested whether the occurrence of anuran species in each breeding pond is different from a null model of random placement of species in those ponds. We then performed two tests to evaluate which of the five environmental descriptors of breeding ponds influence (1) the species composition and (2) species richness. Species composition of the 38 breeding ponds was correlated with number of edge types, number of plant types along the edges of the breeding ponds, and the hydroperiod. Neither the percentage of vegetation cover on the water’s surface nor the size of the breeding ponds were correlated with species composition. Only the number of edge types was correlated with species richness of breeding ponds. The correlation of three environmental descriptors with species composition and one environmental descriptor with species richness, as well as the high beta diversity among breeding ponds, suggest that the analyses of environmental heterogeneity on species composition was more informative than was the analysis for species richness, because breeding ponds with similar species richness can have distinct species composition among them (high beta diversity).

scholarly journals Disentangling niche theory and beta diversity change

2021 ◽  
Author(s):  
William Godsoe ◽  
Peter J Bellingham ◽  
Elena Moltchanova
Keyword(s):  
Beta Diversity ◽  
Price Equation ◽  
Short Term ◽  
Before And After ◽  
Environmental Requirements ◽  
Habitat Specialists ◽  
Montane Tropical Forest ◽  
Ecological Drift ◽  
Over Time

Beta diversity describes the differences in species composition among communities. Changes in beta diversity over time are thought to be due to selection based on species' niche characteristics. For example, theory predicts that selection that favours habitat specialists will increase beta diversity. In practice, ecologists struggle to predict how beta diversity changes. To remedy this problem, we propose a novel solution that formally measures selection's effects on beta diversity. Using the Price equation, we show how change in beta diversity over time can be partitioned into fundamental mechanisms including selection among species, variable selection among communities, drift, and immigration. A key finding of our approach is that a species' short-term impact on beta diversity cannot be predicted using information on its long-term environmental requirements (i.e. its niche). We illustrate how our approach can be used to partition causes of diversity change in a montane tropical forest before and after an intense hurricane. Previous work in this system highlighted the resistance of habitat specialists and the recruitment of light-demanding species but was unable to quantify the importance of these effects on beta diversity. Using our approach, we show that changes in beta diversity were consistent with ecological drift. We use these results to highlight the opportunities presented by a synthesis of beta diversity and formal models of selection.

Biogeographic History and the High Beta-Diversity of Rainforest Trees in Panama

2005 ◽  
pp. 259-269 ◽  
Author(s):  
Christopher W. Dick ◽  
Richard Condit ◽  
Eldridge Bermingham
Keyword(s):  
Beta Diversity ◽  
Biogeographic History ◽  
High Beta

Factors affecting species richness and beta diversity of vascular plants on small islands in the Wenzhou region of eastern China

2017 ◽  
Vol 37 (2) ◽  
Author(s):  
王金旺 WANG Jinwang ◽  
魏馨 WEI Xin ◽  
陈秋夏 CHEN Qiuxia ◽  
李效文 LI Xiaowen ◽  
杨升 YANG Sheng
Keyword(s):  
Species Richness ◽  
Beta Diversity ◽  
Vascular Plants ◽  
Eastern China ◽  
Small Islands ◽  
Factors Affecting

High beta diversity of bacteria in the shallow terrestrial subsurface

2008 ◽  
Vol 10 (10) ◽  
pp. 2537-2549 ◽  
Author(s):  
Jianjun Wang ◽  
Yucheng Wu ◽  
Hongchen Jiang ◽  
Chunhai Li ◽  
Hailiang Dong ◽  
...  
Keyword(s):  
Beta Diversity ◽  
Terrestrial Subsurface ◽  
High Beta

scholarly journals Profiling the microbial community structure and functional diversity of a dam-regulated river undergoing gravel bar restoration

2020 ◽  
Author(s):  
Joeselle M. Serrana ◽  
Bin Li ◽  
Tetsuya Sumi ◽  
Yasuhiro Takemon ◽  
Kozo Watanabe
Keyword(s):  
Microbial Community ◽  
Microbial Communities ◽  
Community Composition ◽  
Beta Diversity ◽  
Environmental Heterogeneity ◽  
Trinity River ◽  
Metabolic Functions ◽  
Gravel Bars ◽  
Gravel Bar ◽  
The Trinity

AbstractBackgroundRiver restoration efforts are expected to influence and change the diversity and functions of microbial communities following the recovery of habitat characteristics in the river ecosystem. The recreation or restoration of gravel bars in the Trinity River in California aims to rehabilitate the environmental heterogeneity downstream of the dam impounded channel. Here, we profiled the community composition, estimated diversity, and annotated putative metabolic functions of the sediment microbial communities to assess whether the construction and restoration of gravel bars in the Trinity River in California enhanced environmental heterogeneity, with the increase in the microbial beta diversity of these in-channel structures against the free-flowing reach of the main channel with comparison to its undisturbed tributaries.ResultsMicrobial community composition of the free-flowing (i.e., no gravel bars) communities were relatively closer regardless of dam influence, whereas the Trinity River gravel bar and tributaries’ gravel bar communities were highly dissimilar. Proteobacteria, Bacteroidetes, and Acidobacteria were the highly abundant sediment microbial phyla on most sites, specifically in the Trinity River gravel bar communities. Putative functional annotation of microbial taxa revealed that chemoheterotrophy and aerobic chemoheterotrophy were the most prevalent microbial processes, with the Trinity River gravel bars having relatively higher representations. The considerably large abundance of heterotrophic taxa implies that gravel bars provide suitable areas for heterotrophic microorganisms with metabolic functions contributing to the net respiration in the river.ConclusionsOur results provide supporting evidence on the positive impact of habitat restoration being conducted in the Trinity River with the non-dam influenced, undisturbed tributaries as the basis of comparison. Gravel bar recreation and restoration contributed to the increased microbial biodiversity through the restoration of environmental heterogeneity at the river scale. We provided valuable insights into the potential microbial processes in the sediment that might be contributing to the biogeochemical processes carried out by the microbial communities in the Trinity River. The significant positive correlation between the functional diversity of the identified microbial taxa and beta diversity suggests that differences in the detected metabolic functions were closely related to dissimilarities in community composition.

scholarly journals Global variation in the beta diversity of lake macrophytes is driven by environmental heterogeneity rather than latitude

2017 ◽  
Vol 44 (8) ◽  
pp. 1758-1769 ◽  
Author(s):  
Janne Alahuhta ◽  
Sarian Kosten ◽  
Munemitsu Akasaka ◽  
Dominique Auderset ◽  
Mattia M. Azzella ◽  
...  
Keyword(s):  
Beta Diversity ◽  
Environmental Heterogeneity ◽  
Global Variation

Low local but high beta diversity of tropical forest dung beetles in Madagascar

2010 ◽  
Vol 19 (6) ◽  
pp. 886-894 ◽  
Author(s):  
Heidi Viljanen ◽  
Federico Escobar ◽  
Ilkka Hanski
Keyword(s):  
Tropical Forest ◽  
Beta Diversity ◽  
Dung Beetles ◽  
High Beta

Alpha and beta diversity of planktonic microcrustaceans are associated with environmental heterogeneity in the Frades River Basin, Brazil

2021 ◽  
pp. 1-12
Author(s):  
Escarlett de Arruda Ramos ◽  
Adriana Tiemi Ramos Okumura ◽  
Allison Gonçalves Silva ◽  
Tiago Leão Pereira ◽  
Nadson Ressyé Simões
Keyword(s):  
River Basin ◽  
Beta Diversity ◽  
Environmental Heterogeneity ◽  
Alpha And Beta Diversity

scholarly journals Unexpectedly High Beta-Diversity of Root-Associated Fungal Communities in the Bolivian Andes

2016 ◽  
Vol 7 ◽  
Author(s):  
Christopher J. Barnes ◽  
Carla Maldonado ◽  
Tobias G. Frøslev ◽  
Alexandre Antonelli ◽  
Nina Rønsted
Keyword(s):  
Beta Diversity ◽  
Fungal Communities ◽  
Bolivian Andes ◽  
High Beta
Sign in / Sign up

Export Citation Format

Share Document