scholarly journals The theory of island biogeography applies to ectomycorrhizal fungi in subalpine tree “islands” at a fine scale

Ecosphere ◽  
2017 ◽  
Vol 8 (2) ◽  
pp. e01677 ◽  
Author(s):  
Sydney I. Glassman ◽  
Kaitlin C. Lubetkin ◽  
Judy A. Chung ◽  
Thomas D. Bruns
2019 ◽  
Vol 46 (9) ◽  
pp. 1901-1911
Author(s):  
Aloïs Robert ◽  
Thierry Lengagne ◽  
Martim Melo ◽  
Vanessa Gardette ◽  
Sacha Julien ◽  
...  

Ecology ◽  
1989 ◽  
Vol 70 (6) ◽  
pp. 1954-1957 ◽  
Author(s):  
James H. Brown ◽  
Mark V. Lomolino

Author(s):  
Elizabeth R Pansing

James H. Brown’s “Mammals on mountaintops: nonequilibrium insular biogeography,” published in 1971 in The American Naturalist, documented distributional patterns of small mammal species in the mountaintop islands of the Great Basin, USA. Distributional patterns suggested that this island-like system was not in equilibrium and represented some of the first evidence contradicting the seminal Theory of Island Biogeography. Brown’s findings suggested that ecological and historical mechanisms were integral to community assembly and maintenance in island-like systems, broadening the focus of research related to biogeographical patterns in islands. The work further highlighted the importance of species traits on distributional patterns. Here, I review the paper and its contributions.


Evolution ◽  
2010 ◽  
Vol 64 (12) ◽  
pp. 3649-3651 ◽  
Author(s):  
Theodore H. Fleming

2008 ◽  
Vol 32 (3) ◽  
pp. 277-291 ◽  
Author(s):  
George P. Malanson

The concept of the extinction debt has two components: a direct timelag between an environmental perturbation and the consequent extinction of a species and the idea that among species going extinct the strong competitors/weak colonizers go extinct first. Although the term was first used in 1994 in the context of metapopulation models, its roots go back to general systems theory and the theory of island biogeography. It has been qualified and elaborated since 1994, mostly in terms of the effects of spatial pattern on the outcomes. The strongest critiques of the concept emphasize that the direct trade-off between competition and colonization abilities is not simple. The original application was to remnant habitat patches, but it could be applied to spatially heterogeneous habitats that are subject to climate change or invasive species. As a guide to conservation practice, extinction debt remains a general cautionary principle rather than a specific prescription, but the raising of awareness is nevertheless significant.


2015 ◽  
Vol 282 (1819) ◽  
pp. 20151700 ◽  
Author(s):  
Frank T. Burbrink ◽  
Alexander D. McKelvy ◽  
R. Alexander Pyron ◽  
Edward A. Myers

Predicting species presence and richness on islands is important for understanding the origins of communities and how likely it is that species will disperse and resist extinction. The equilibrium theory of island biogeography (ETIB) and, as a simple model of sampling abundances, the unified neutral theory of biodiversity (UNTB), predict that in situations where mainland to island migration is high, species-abundance relationships explain the presence of taxa on islands. Thus, more abundant mainland species should have a higher probability of occurring on adjacent islands. In contrast to UNTB, if certain groups have traits that permit them to disperse to islands better than other taxa, then phylogeny may be more predictive of which taxa will occur on islands. Taking surveys of 54 island snake communities in the Eastern Nearctic along with mainland communities that have abundance data for each species, we use phylogenetic assembly methods and UNTB estimates to predict island communities. Species richness is predicted by island area, whereas turnover from the mainland to island communities is random with respect to phylogeny. Community structure appears to be ecologically neutral and abundance on the mainland is the best predictor of presence on islands. With regard to young and proximate islands, where allopatric or cladogenetic speciation is not a factor, we find that simple neutral models following UNTB and ETIB predict the structure of island communities.


2017 ◽  
Vol 44 (5) ◽  
pp. 963-983 ◽  
Author(s):  
Jairo Patiño ◽  
Robert J. Whittaker ◽  
Paulo A.V. Borges ◽  
José María Fernández-Palacios ◽  
Claudine Ah-Peng ◽  
...  

2016 ◽  
Vol 283 (1829) ◽  
pp. 20160102 ◽  
Author(s):  
Ryan A. Chisholm ◽  
Tak Fung ◽  
Deepthi Chimalakonda ◽  
James P. O'Dwyer

MacArthur and Wilson's theory of island biogeography predicts that island species richness should increase with island area. This prediction generally holds among large islands, but among small islands species richness often varies independently of island area, producing the so-called ‘small-island effect’ and an overall biphasic species–area relationship (SAR). Here, we develop a unified theory that explains the biphasic island SAR. Our theory's key postulate is that as island area increases, the total number of immigrants increases faster than niche diversity. A parsimonious mechanistic model approximating these processes reproduces a biphasic SAR and provides excellent fits to 100 archipelago datasets. In the light of our theory, the biphasic island SAR can be interpreted as arising from a transition from a niche-structured regime on small islands to a colonization–extinction balance regime on large islands. The first regime is characteristic of classic deterministic niche theories; the second regime is characteristic of stochastic theories including the theory of island biogeography and neutral theory. The data furthermore confirm our theory's key prediction that the transition between the two SAR regimes should occur at smaller areas, where immigration is stronger (i.e. for taxa that are better dispersers and for archipelagos that are less isolated).


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