Ubiquitous dispersal of microbial species

Finlay, Bland J.; Clarke, Ken J.

doi:10.1038/23616

Cited by 316 publications

(217 citation statements)

References 5 publications

Supporting

Mentioning

201

Contrasting

Unclassified

Order By: Relevance

“…Taton et al 2006) and diatoms (Sabbe et al 2003), and refute the hypothesis that for micro-organisms everything is everywhere (e.g. Finlay & Clarke 1999).…”

Section: Discussionmentioning

confidence: 87%

Hidden levels of phylodiversity in Antarctic green algae: further evidence for the existence of glacial refugia

et al. 2009

View full text Add to dashboard Cite

Recent data revealed that metazoans such as mites and springtails have persisted in Antarctica throughout several glacial -interglacial cycles, which contradicts the existing paradigm that terrestrial life was wiped out by successive glacial events and that the current inhabitants are recent colonizers. We used molecular phylogenetic techniques to study Antarctic microchlorophyte strains isolated from lacustrine habitats from maritime and continental Antarctica. The 14 distinct chlorophycean and trebouxiophycean lineages observed point to a wide phylogenetic diversity of apparently endemic Antarctic lineages at different taxonomic levels. This supports the hypothesis that long-term survival took place in glacial refugia, resulting in a specific Antarctic flora. The majority of the lineages have estimated ages between 17 and 84 Ma and probably diverged from their closest relatives around the time of the opening of Drake Passage (30 -45 Ma), while some lineages with longer branch lengths have estimated ages that precede the break-up of Gondwana. The variation in branch length and estimated age points to several independent but rare colonization events.

show abstract

“…Taton et al 2006) and diatoms (Sabbe et al 2003), and refute the hypothesis that for micro-organisms everything is everywhere (e.g. Finlay & Clarke 1999).…”

Section: Discussionmentioning

confidence: 87%

Hidden levels of phylodiversity in Antarctic green algae: further evidence for the existence of glacial refugia

et al. 2009

View full text Add to dashboard Cite

show abstract

“…This significant rate of diversity turnover has generally been explained by a dynamic equilibrium between extinction and immigration (''area'' hypothesis, mediated by dispersal) and/or by the increase of habitat diversity with increasing area (''habitat heterogeneity'' hypothesis, mediated by environmental selection) 7 . In microorganisms, phylogeographic studies have revealed that the genetic similarity within particular populations decreases with distance, which suggests a significant influence of dispersal limitation, leading to strong endemism 3 , and contradicts the hypothesis of microbial cosmopolitanism 8 . At the community level, biogeographical studies have indicated that diversity turnover is influenced both by geographical distance 9 and environmental heterogeneity (as classified by soil, vegetation and climatic characteristics) 10,11 .…”

mentioning

confidence: 93%

Turnover of soil bacterial diversity driven by wide-scale environmental heterogeneity

et al. 2013

View full text Add to dashboard Cite

Spatial scaling and determinism of the wide-scale distribution of macroorganism diversity has been largely demonstrated over a century. For microorganisms, and especially for soil bacteria, this fundamental question requires more thorough investigation, as little information has been reported to date. Here by applying the taxa-area relationship to the largest spatially explicit soil sampling available in France (2,085 soils, area covered B5.3 Â 10 5 km 2 ) and developing an innovative evaluation of the habitat-area relationship, we show that the turnover rate of bacterial diversity in soils on a wide scale is highly significant and strongly correlated with the turnover rate of soil habitat. As the diversity of micro-and macroorganisms appears to be driven by similar processes (dispersal and selection), maintaining diverse and spatially structured habitats is essential for soil biological patrimony and the resulting ecosystem services.

show abstract

“…In particular, there is a suggestion that comparatively big animals and, conversely, micro-organisms tend to have large geographical ranges, with smaller animals typically having smaller ranges. Among other things, this raises the question whether the global number of species of organisms less than 1mm long will be vast (as suggested by the rough rule that each tenfold reduction in length increases the number of species of animals one hundredfold, at least down to around 1mm; May 1978), or whether micro-organism species are very widely dispersed, making them ubiquitous and consequently having moderate global richness of species (a view convincingly argued, with supporting data from chrysomonad £agellates, by Finlay & Clarke (1999)). Clearly, these are central questions both for evolutionary ecologists and for conservation practitioners.…”

Section: Relationships Between Species Numbers Sizes Ranges Etcmentioning

confidence: 99%

Unanswered questions in ecology

May

1999

Phil. Trans. R. Soc. Lond. B

157

View full text Add to dashboard Cite

This is very much a personal view of what I think are some of the most important unanswered questions in ecology. That is, these are the questions that I expect will be high on the research agenda over the coming century. The list is organized hierarchically, beginning with questions at the level of individual populations, and progressing through interacting populations to entire communities or ecosystems. I will try to guess both at possible advances in basic knowledge and at potential applications. The only thing that is certain about this view of the future is that much of it will surely turn out to be wrong, and many of the most interesting future developments will be quite unforeseen.

show abstract

Ubiquitous dispersal of microbial species

Cited by 316 publications

References 5 publications

Hidden levels of phylodiversity in Antarctic green algae: further evidence for the existence of glacial refugia

Hidden levels of phylodiversity in Antarctic green algae: further evidence for the existence of glacial refugia

Turnover of soil bacterial diversity driven by wide-scale environmental heterogeneity

Unanswered questions in ecology

Contact Info

Product

Resources

About