scholarly journals Modeling the relative importance of ecological factors in exotic invasion: The origin of competitors matters, but disturbance in the non-native range tips the balance

2016 ◽  
Vol 335 ◽  
pp. 39-47 ◽  
Author(s):  
Sa Xiao ◽  
Ragan M. Callaway ◽  
Ryan Graebner ◽  
Jose L. Hierro ◽  
Daniel Montesinos
2011 ◽  
Vol 366 (1569) ◽  
pp. 1453-1460 ◽  
Author(s):  
Erika I. Hersch-Green ◽  
Nash E. Turley ◽  
Marc T. J. Johnson

Research in community genetics seeks to understand how the dynamic interplay between ecology and evolution shapes simple and complex communities and ecosystems. A community genetics perspective, however, may not be necessary or informative for all studies and systems. To better understand when and how intraspecific genetic variation and microevolution are important in community and ecosystem ecology, we suggest future research should focus on three areas: (i) determining the relative importance of intraspecific genetic variation compared with other ecological factors in mediating community and ecosystem properties; (ii) understanding the importance of microevolution in shaping ecological dynamics in multi-trophic communities; and (iii) deciphering the phenotypic and associated genetic mechanisms that drive community and ecosystem processes. Here, we identify key areas of research that will increase our understanding of the ecology and evolution of complex communities but that are currently missing in community genetics. We then suggest experiments designed to meet these current gaps.


Polar Biology ◽  
2014 ◽  
Vol 37 (9) ◽  
pp. 1309-1320 ◽  
Author(s):  
J. R. Liebezeit ◽  
K. E. B. Gurney ◽  
M. Budde ◽  
S. Zack ◽  
D. Ward

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Yann Surget-Groba ◽  
Helena Johansson ◽  
Roger S. Thorpe

The general diversity pattern of the Caribbean anole radiation has been described in detail; however, the actual mechanisms at the origin of their diversification remain controversial. In particular, the role of ecological speciation, and the relative importance of divergence in allopatry and in parapatry, is debated. We describe the genetic structure of anole populations across lineage contact zones and ecotones to investigate the effect of allopatric divergence, natural selection, and the combination of both factors on population differentiation. Allopatric divergence had no significant impact on differentiation across the lineage boundary, while a clear bimodality in genetic and morphological characters was observed across an ecotone within a single lineage. Critically, the strongest differentiation was observed when allopatry and ecology act together, leading to a sharp reduction in gene flow between two lineages inhabiting different habitats. We suggest that, for Caribbean anoles to reach full speciation, a synergistic combination of several historical and ecological factors may be requisite.


2001 ◽  
Vol 120 (5) ◽  
pp. A678-A679
Author(s):  
G ANDERSON ◽  
S WILKINS ◽  
T MURPHY ◽  
G CLEGHORN ◽  
D FRAZER

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