Journal ArticleDOI
Hybridization as a stimulus for the evolution of invasiveness in plants
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TLDR
This model does not represent the only evolutionary pathway to invasiveness, but is clearly an underappreciated mechanism worthy of more consideration in explaining the evolution ofinvasiveness in plants.Abstract:
Invasive species are of great interest to evolutionary biologists and ecologists because they represent historical examples of dramatic evolutionary and ecological change. Likewise, they are increasingly important economically and environmentally as pests. Obtaining generalizations about the tiny fraction of immigrant taxa that become successful invaders has been frustrated by two enigmatic phenomena. Many of those species that become successful only do so (i) after an unusually long lag time after initial arrival, and/or (ii) after multiple introductions. We propose an evolutionary mechanism that may account for these observations. Hybridization between species or between disparate source populations may serve as a stimulus for the evolution of invasiveness. We present and review a remarkable number of cases in which hybridization preceded the emergence of successful invasive populations. Progeny with a history of hybridization may enjoy one or more potential genetic benefits relative to their progenitors. The observed lag times and multiple introductions that seem a prerequisite for certain species to evolve invasiveness may be a correlate of the time necessary for previously isolated populations to come into contact and for hybridization to occur. Our examples demonstrate that invasiveness can evolve. Our model does not represent the only evolutionary pathway to invasiveness, but is clearly an underappreciated mechanism worthy of more consideration in explaining the evolution of invasiveness in plants.read more
Citations
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Journal ArticleDOI
Intraspecific hybridization, life history strategies and potential invasion success in a parasitoid wasp
Chiara Benvenuto,Chiara Benvenuto,Sandrine Cheyppe-Buchmann,Gérald Bermond,Nicolas Ris,Nicolas Ris,Xavier Fauvergue +6 more
TL;DR: In this system, sex-specific effects of hybridization and genotype-by-environment interactions jeopardize any straightforward prediction on the fitness of hybrids, and this paper contributes to tone down the hybrid advantage hypothesis in invasion biology.
Journal ArticleDOI
Evidence of ecological niche shift in Rhododendron ponticum (L.) in Britain: Hybridization as a possible cause of rapid niche expansion
Syed Amir Manzoor,Syed Amir Manzoor,Geoffrey H. Griffiths,Maxwell C. Obiakara,Citlalli Edith Esparza‐Estrada,Martin Lukac,Martin Lukac +6 more
TL;DR: It is indicated that hybridization is a likely cause of the observed niche expansion of R. ponticum in Britain, and the evidence of niche shift presented in this study should be treated with caution because of nonanalogue climatic conditions between native and invasive ranges and a small population size in the native range.
Book ChapterDOI
Marine Invasion Genomics: Revealing Ecological and Evolutionary Consequences of Biological Invasions
TL;DR: How high-throughput sequencing has aided the understanding of the mechanisms associated with biological invasions is analyzed and how contemporary genomic methods have been used to probe and monitor the spread of non-indigenous species is explored.
Journal ArticleDOI
Genetic Diversity and Thermal Performance in Invasive and Native Populations of African Fig Flies
Aaron A. Comeault,Jeremy Wang,Silas Tittes,Kristin Isbell,Spencer J. Ingley,Allen H. Hurlbert,Daniel R. Matute +6 more
TL;DR: It is illustrated how aspects of genetic diversity in invasive species can be decoupled from measures of fitness, and that a broad thermal niche may have helped facilitate Z. indianus’s range expansion.
Journal ArticleDOI
Genetic variation and phylogeographic analyses of two species of Carpobrotus and their hybrids in California
TL;DR: The variation in cpDNA data is in agreement with the previously reported allozyme and morphological data; this supports relatively limited variation and high population differentiation among C. chilensis and hybrids and more wide‐ranging variation in C. edulis and hybrids.
References
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Journal ArticleDOI
The Ecology of Invasions by Animals and Plants.
P. W. Richards,Charles Elton +1 more
Journal ArticleDOI
Environmental and Economic Costs of Nonindigenous Species in the United States
TL;DR: Aproximately 50,000 nonindigenous (non-native) species are estimated to have been introduced to the United States, many of which are beneficial but have caused major economic losses in agriculture, forestry, and several other segments of the US economy, in addition to harming the environment.
Book
The Ecology of Invasions by Animals and Plants
TL;DR: The first book on invasion biology, and still the most cited, Elton's masterpiece provides an accessible, engaging introduction to one of the most important environmental crises of the authors' time.
Book
Natural Hybridization and Evolution
TL;DR: This chapter discusses natural hybridization in the context of reproductive parameters, species concepts, and the role that technology has played in shaping human evolution.