Species pool size alters species–area relationships during experimental community assembly

Species pool size and realized species richness affect productivity differently: A modeling study

Acta Oecologica ◽

10.1016/j.actao.2010.09.002 ◽

2010 ◽

Vol 36 (6) ◽

pp. 578-586 ◽

Cited By ~ 4

Author(s):

Terezie Stachová ◽

Jan Lepš

Keyword(s):

Species Richness ◽

Pool Size ◽

Species Pool ◽

Modeling Study

Functional species pool framework to test for biotic effects on community assembly

Ecology ◽

10.1890/11-1394.1 ◽

2012 ◽

Vol 93 (10) ◽

pp. 2263-2273 ◽

Cited By ~ 134

Author(s):

Francesco de Bello ◽

Jodi N. Price ◽

Tamara Münkemüller ◽

Jaan Liira ◽

Martin Zobel ◽

...

Keyword(s):

Community Assembly ◽

Species Pool ◽

Biotic Effects

Distinguishing the signatures of local environmental filtering and regional trait range limits in the study of trait-environment relationships

10.1101/528836 ◽

2019 ◽

Author(s):

Pierre Denelle ◽

Cyrille Violle ◽

François Munoz

Keyword(s):

Community Assembly ◽

Environmental Gradients ◽

Boundary Effect ◽

Extreme Environments ◽

Environmental Filtering ◽

Range Limits ◽

Species Pool ◽

Statistical Tool ◽

Leaf Trait ◽

Trait Convergence

AbstractUnderstanding the imprint of environmental filtering on community assembly along environmental gradients is a key objective of trait-gradient analyses. Depending on local constraints, this filtering generally entails that species departing from an optimum trait value have lower abundances in the community. The Community-Weighted Mean (CWM) and Variance (CWV) of trait values are then expected to depict the optimum and intensity of filtering, respectively. However, the trait distribution within the regional species pool and its limits can also affect local CWM and CWV values apart from the effect of environmental filtering. The regional trait range limits are more likely to be reached in communities at the extremes of environmental gradients. Analogous to the mid-domain effect in biogeography, decreasing CWV values in extreme environments can then represent the influence of regional trait range limits rather than stronger filtering in the local environment. We name this effect the “Trait-Gradient Boundary Effect” (TGBE). First, we use a community assembly framework to build simulated communities along a gradient from a species pool and environmental filtering with either constant or varying intensity while accounting for immigration processes. We demonstrate the significant influence of TGBE, in parallel to environmental filtering, on CWM and CWV at the extremes of the environmental gradient. We provide a statistical tool based on Approximate Bayesian Computation to decipher the respective influence of local environmental filtering and regional trait range limits. Second, as a case study, we reanalyze the functional composition of alpine plant communities distributed along a gradient of snow cover duration. We show that leaf trait convergence found in communities at the extremes of the gradient reflect an influence of trait range limits rather than stronger environmental filtering. These findings challenge correlative trait-environment relationships and call for more explicitly identifying the mechanisms responsible of trait convergence/divergence along environmental gradients.

Community assembly and species traits

Community Ecology ◽

10.1093/oso/9780198835851.003.0012 ◽

2019 ◽

pp. 231-246

Author(s):

Gary G. Mittelbach ◽

Brian J. McGill

Keyword(s):

Functional Traits ◽

Community Assembly ◽

Species Traits ◽

Fundamental Question ◽

Species Pool ◽

Environmental Filters ◽

Abiotic Environment ◽

Local Site ◽

Powerful Approach ◽

Regional Species Pool

There is perhaps no more fundamental question in ecology than what determines the number and kinds of species found in a community and their relative abundances. This chapter lays out a powerful approach to answering this question, based on the concepts of a regional species pool and environmental filters. The species pool is the set of species that could potentially colonize a local site or community. Of these potential colonists, some species are limited in their ability to disperse to site, some are limited by their ability to survive the abiotic environment, and some are limited by their interactions with other species. These “filters” act individually or in concert, and the functional traits of species determine their success in passing through these filters to colonize a local site. There is growing empirical evidence that both abiotic and biotic processes select for specific functional traits. Focusing on the functional traits of species may lead to rules of community assembly that are general and help unify a variety of more specific theories.

A phylogenetic approach to community assembly from a local species pool

Proceedings of The Royal Society B Biological Sciences ◽

10.1098/rspb.2000.1010 ◽

2000 ◽

Vol 267 (1441) ◽

pp. 363-369 ◽

Cited By ~ 71

Author(s):

Richard Tofts ◽

Jonathan Silvertown

Keyword(s):

Community Assembly ◽

Species Pool ◽

Local Species ◽

Local Species Pool

Species pool size and invasibility of island communities: a null model of sampling effects

Ecology Letters ◽

10.1111/j.1461-0248.2005.00790.x ◽

2005 ◽

Vol 8 (9) ◽

pp. 909-917 ◽

Cited By ~ 33

Author(s):

Tomas Herben

Keyword(s):

Null Model ◽

Pool Size ◽

Species Pool ◽

Island Communities

Variation in species richness and species pool size across a pH gradient in forests of the southern Blue Ridge Mountains

Folia Geobotanica ◽

10.1007/bf02803247 ◽

2003 ◽

Vol 38 (4) ◽

pp. 391-401 ◽

Cited By ~ 35

Author(s):

Robert K. Peet ◽

Jason D. Fridley ◽

Joel M. Gramling

Keyword(s):

Species Richness ◽

Pool Size ◽

Ph Gradient ◽

Species Pool ◽

Blue Ridge ◽

Blue Ridge Mountains

The composition, species richness and species pool size of mono- and oligodominant forest stands of the Western Caucasus

Vegetation of Russia ◽

10.31111/vegrus/2018.32.3 ◽

2018 ◽

pp. 3-18

Author(s):

V. V. Akatov

Keyword(s):

Species Richness ◽

Plant Cover ◽

Species Abundance ◽

Pool Size ◽

Species Pool ◽

Forest Stands ◽

Western Caucasus ◽

Number Of Species ◽

Dominance Structure ◽

The Western Caucasus

There is an opinion that the pressure of competition in the plant communities of stable and productive habitats leads to the decrease in evenness of structure of species abundance and species richness up to the monopolization of plots by the most successful competitor (Huston, 1979; Bengtsson et al., 1994). Hence, between the species richness of phytocoenoses and relative density of individuals of dominant species (RDD), negative dependence should be observed. However, according to another view, the number of species and structure of their abundance are determined by the different processes. The number of species is determined by the species pool size and the rate of species immigration, while the abundance structure — by the competition (Stirling, Wilsey, 2001; Ma, 2005; Wilsey, Stirling, 2007). In particular, in some communities a decrease of RDD leads to an increase in abundance of subdominant species and to oligodominant structure. These changes in relative abundance could occur without changes in species richness. Therefore these variables could be weakly related (Ma, 2005; Wilsey, Stirling, 2007; Munson, Lauenroth, 2009). However, it is unclear how widely these scenarios are realized in the plant cover. The aim of our study was to examine the relationship between RDD, the dominance structure as a whole (mono- or oligodominant), the species richness and the size of the species pool in the forest stands of the Western Caucasus.

Community assembly along a species pool gradient: implications for multiple-scale patterns of species diversity

Population Ecology ◽

10.1007/s10144-004-0182-z ◽

2004 ◽

Vol 46 (2) ◽

Cited By ~ 64

Author(s):

Tadashi Fukami

Keyword(s):

Species Diversity ◽

Community Assembly ◽

Multiple Scale ◽

Species Pool

Probing the troublesome peaked relationship between avian species richness and natural land cover

10.21203/rs.3.rs-675821/v1 ◽

2021 ◽

Author(s):

Rafael Xavier De Camargo ◽

David Currie

Keyword(s):

Species Richness ◽

Land Cover ◽

Landscape Heterogeneity ◽

New York State ◽

Pool Size ◽

Avian Species ◽

Temperature Gradients ◽

Species Pool ◽

Natural Land ◽

The Relationship

Abstract Context : Biodiversity models postulate that the relationship between richness and the proportion of natural land cover (pNLC i.e., not dominated by human uses) is: 1) monotonic positive, 2) reasonably strong , 3) consistent in different geographic areas . Earlier work examining 100-km 2 human-dominated landcover in Ontario, Canada, observed that surveyed avian species richness is a peaked function of pNLC. Objective : We tested whether the same relationship between avian species richness and pNLC is also observed in an independent geographic area that has similar biomes. We also tested whether the peaked relations might be caused by temperature gradients, gradients in the size of species pools, grain size in the analyses, and landscape heterogeneity. Methods : Using breeding bird atlases of Ontario (Canada) and New York State (USA), we estimated species richness in landscapes varying from 25 to 900 km 2 . We related richness to the pNLC in each landscape and examined the same relationships after controlling for temperature, habitat heterogeneity, and species pool size. Results : Landscape-level species richness is a peaked, and not very strong function of pNLC. The relationship is not an artefact of temperature gradients, species pool size, or land cover heterogeneity. Conclusions : The proposition that increased amounts of natural land cover promotes species richness is clearly true at the limit, in landscapes with relatively little (<30%) natural cover. In landscapes with higher amounts of natural cover, a certain amount of human-modified land covers can provide habitat for species that prefer open habitats.