Temporal environmental variation imposes differential selection on genomic and ecological traits of virtual plant communities

Leidinger, Ludwig; Cabral, Juliano Sarmento

doi:10.1101/2020.03.24.005058

Cited by 2 publications

(4 citation statements)

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“…Although beyond of the scope of this study, the current model allows us to consider genomic traits in the characterisation of species. In a previous study, Leidinger and Cabral (2020) show how environmental variation interacted with the number of genes and genomic variation of communities. Similarly, invasive species might display particular genomic profiles which enable them to quickly adapt to novel environments, for example by high standing variation or phenotypic plasticity (Zenni, Lamy, Lamarque, & Porté, 2014).…”

Section: Discussionmentioning

confidence: 97%

“…We extended the model of Leidinger and Cabral (2020) to simulate species invasions to plant communities on a virtual oceanic island (fig. 2).…”

Section: Methodsmentioning

confidence: 99%

“…Here, we therefore used a recently developed trait-explicit, individual-based mechanistic model of island plant communities (Leidinger & Cabral, 2020) to investigate the relative roles of propagule pressure, productivity, and disturbance, as well as the traits of invasive species relative to natives. Guided by the framework of Theoharides and Dukes (2007), we wanted to know which factors and trait syndromes increase the success of alien species during the stages of invasions on islands (cf.…”

Section: Introductionmentioning

confidence: 99%

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Effects of species traits and abiotic factors during the stages of plant invasions

Vedder

Leidinger

Cabral

2020

Preprint

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1 1. The success of species invasions depends on multiple factors act-2 ing over the four invasion stages transport, colonisation, establish-3 ment, and landscape spread. Each of these stages is influenced simul-4 taneously by particular species traits and abiotic factors. While the 5 importance of many of these determinants has already been inves-6 tigated in relative isolation, they are rarely studied in combination 7 and even then mostly ignore the final phase, i.e., landscape spread. 8 2. Here we address this shortcoming by exploring the effect of both 9 species traits and abiotic factors on the success of invasions using an 10 individual-based mechanistic model, and relate those factors to the 11 stages of invasion. This approach enables us to explicitly control abi-12 otic factors (temperature as surrogate for productivity, disturbance 13 and propagule pressure) as well as to monitor whole-community trait 14 distributions of environmental adaptation, mass and dispersal abili-15 ties. We simulated introductions of plant individuals to an oceanic 16 island to assess which abiotic factors and species traits contribute to 17 invasion success.183. We found that the most influential factors were higher propagule 19 pressure and a particular set of traits. This invasion trait syndrome 20 was characterized by a relative similarity in functional traits of in-21 vasive species to natives, while invasives had on average higher en-22 vironmental tolerances, higher body mass and increased dispersal 23 abilities, i.e., were more generalist and dispersive. 24 4. Our results highlight the importance in management practice of re-25

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Section: Discussionmentioning

confidence: 97%

“…We extended the model of Leidinger and Cabral (2020) to simulate species invasions to plant communities on a virtual oceanic island (fig. 2).…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of species traits and abiotic factors during the stages of plant invasions

Vedder

Leidinger

Cabral

2020

Preprint

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“…Sexual recombination can also play an important role in the evolution of dispersal (Leidinger and Cabral 2020, Weiss‐Lehman and Shaw 2020) allowing for faster evolution and recombination. Nevertheless, the high standing variation in the founding population here ensured that inter‐individual variability was high and sufficient phenotypic variability was present in the meta‐population.…”

Section: Discussionmentioning

confidence: 99%

The degree of spatial variation relative to temporal variation influences evolution of dispersal

Sieger

Hovestadt

2020

Oikos

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In the face of ongoing global climate and land use change, organisms have multiple possibilities to cope with the modification of their environment. The two main possibilities are to either adapt locally or disperse to a more suitable habitat. The evolution of both local adaptation and dispersal interacts and can be influenced by the spatial and temporal variation (of e.g. temperature or precipitation). In an individual based model (IBM), we explore evolution of phenotypes in landscapes with varying degree of spatial relative to global temporal variation in order to examine its influence on the evolution of dispersal, niche optimum and niche width. The relationship between temporal and spatial variation did neither influence the evolution of local adaptation in the niche optimum nor of niche widths. Dispersal probability is highly influenced by the spatio‐temporal relationship: with increasing spatial variation, dispersal probability decreases. Additionally, the shape of the distribution of the trait values over patch attributes switches from hump‐ to U‐shaped. At low spatial variance more individuals emigrate from average habitats, at high spatial variance more from extreme habitats. The comparatively high dispersal probability in extreme patches of landscapes with a high spatial variation can be explained by evolutionary succession of two kinds of adaptive response. Early in the simulations, extreme patches in landscapes with a high spatial variability act as sink habitats, where population persistence depends on highly dispersive individuals with a wide niche. With ongoing evolution, local adaptation of the remaining individuals takes over, but simultaneously a possible bet‐hedging strategy promotes higher dispersal probabilities in those habitats. Here, in generations that experience extreme shifts from the temporal mean of the patch attribute, the expected fitness becomes higher for dispersing individuals than for philopatric individuals. This means that under certain circumstances, both local adaptation and high dispersal probability can be selected for for coping with the projected environmental changes in the future.

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Temporal environmental variation imposes differential selection on genomic and ecological traits of virtual plant communities

Cited by 2 publications

References 92 publications

Effects of species traits and abiotic factors during the stages of plant invasions

Effects of species traits and abiotic factors during the stages of plant invasions

The degree of spatial variation relative to temporal variation influences evolution of dispersal

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