Why Some Habitat Types Are Locally Much More Species-Rich Than Others: Ongoing Assembly of Species Produced by Long and Rapid Macroevolutionary Diversification

IF 6.3 1区 环境科学与生态学 Q1 ECOLOGY
Andreas Prinzing, Igor V. Bartish, Keliang Zhang, Benjamin Yguel
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引用次数: 0

Abstract

Aim

Species richness of local communities is often considered to be disconnected from the macroevolutionary diversification of lineages operating at much larger spatiotemporal scales. However, local communities occupy patches of habitat types, many of which persist across large spatiotemporal scales. We hypothesise that high local species richness of specific habitat types could result from ongoing local assembly in which both very closely related and very distantly related species can locally co-occur. Alternatively, such local richness of specific habitat types could result from historical assembly in which historical colonisation by many lineages and diversification within habitat-type increased richness of the habitat species-pool and thereby the local communities sampled from it.

Location

The Netherlands.

Time Period

1932–2012.

Major Taxa Studied

Angiosperms.

Methods

We analysed 6851 small-scale local plots (median 54 m2) belonging to all major habitat types in the Netherlands. We quantified mean pairwise phylogenetic distances across all species and between phylogenetically nearest species, standardised for 0-expectations for a given species richness. We quantified these measures for local communities, averaged within habitat types and for the species-pools of the habitat types.

Results

Local richness varied 21-fold among habitat types. Local richness increased with mean pairwise distances and decreased with mean nearest-taxon distances of local communities (but not of habitat species-pools). These patterns were independent of the size of the regional habitat species-pool, the presence of exotic species and the environmental conditions.

Main Conclusions

Local species richness varies massively among habitat types within a region. We suggest that some habitat types are locally species rich because today they permit the most distantly related and the most closely related species to coexist, likely through stabilising and equalising mechanisms, respectively. These mechanisms should be tested in the future.

Abstract Image

为什么某些生境类型在局部比其他生境类型物种丰富得多:长期和快速的宏观进化多样化所产生的物种的持续组装
局部群落的物种丰富度通常被认为与在更大时空尺度上运作的谱系的宏观进化多样化脱节。然而,当地社区占据了生境类型的斑块,其中许多在大的时空尺度上持续存在。我们假设,特定生境类型的高本地物种丰富度可能是由于正在进行的本地组装,其中近亲和远亲物种可以在本地共同发生。另外,这种特定生境类型的地方丰富性可能源于历史上的组合,在这种组合中,许多世系的历史殖民化和生境类型内的多样化增加了生境物种库的丰富性,从而增加了当地群落的采样。
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来源期刊
Global Ecology and Biogeography
Global Ecology and Biogeography 环境科学-生态学
CiteScore
12.10
自引率
3.10%
发文量
170
审稿时长
3 months
期刊介绍: Global Ecology and Biogeography (GEB) welcomes papers that investigate broad-scale (in space, time and/or taxonomy), general patterns in the organization of ecological systems and assemblages, and the processes that underlie them. In particular, GEB welcomes studies that use macroecological methods, comparative analyses, meta-analyses, reviews, spatial analyses and modelling to arrive at general, conceptual conclusions. Studies in GEB need not be global in spatial extent, but the conclusions and implications of the study must be relevant to ecologists and biogeographers globally, rather than being limited to local areas, or specific taxa. Similarly, GEB is not limited to spatial studies; we are equally interested in the general patterns of nature through time, among taxa (e.g., body sizes, dispersal abilities), through the course of evolution, etc. Further, GEB welcomes papers that investigate general impacts of human activities on ecological systems in accordance with the above criteria.
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