Eco‐evolutionary dynamics of range expansion

Miller, Tom E. X.; Angert, Amy L.; Brown, Clifford M.; Lee‐Yaw, Julie A.; Lewis, Mark A.; Lutscher, Frithjof; Marculis, Nathan G.; Melbourne, Brett A.; Shaw, Allison K.; Szűcs, Marianna; Tabares, Olivia; Usui, Takuji; Weiss‐Lehman, Christopher; Williams, Jennifer L.

doi:10.1002/ecy.3139

Cited by 103 publications

(168 citation statements)

References 102 publications

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“…In the 1940 s, Simpson posited that species could enter new ‘adaptive zones’ (Simpson, 1945; Simpson, 1953) via specific events, including dispersal into new habitats, extirpation of predators, or through ‘key innovations’, namely, those that relax or fundamentally change the prevailing environmental sources of natural selection (Miller, 1949; Rabosky, 2017). Since then, there has been an accumulation of evidence for rapid phenotypic evolution over short time scales (Carroll et al, 2007), with perhaps some of the best examples of this phenomenon coming from range‐expanding species (Miller et al, 2020). During colonisation, consumers often encounter new food resources and undergo shifts in their trophic niche, culminating in the evolution of associated behavioural, morphological and physiological traits (Des Roches et al, 2016; Herrel et al, 2008; Leaver & Reimchen, 2012; Renaud et al, 2018).…”

Section: Metabolic Adaptation and Consumer Diversificationmentioning

confidence: 99%

The evolutionary ecology of fatty‐acid variation: Implications for consumer adaptation and diversification

et al. 2021

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The nutritional diversity of resources can affect the adaptive evolution of consumer metabolism and consumer diversification. The omega‐3 long‐chain polyunsaturated fatty acids eicosapentaenoic acid (EPA; 20:5n‐3) and docosahexaenoic acid (DHA; 22:6n‐3) have a high potential to affect consumer fitness, through their widespread effects on reproduction, growth and survival. However, few studies consider the evolution of fatty acid metabolism within an ecological context. In this review, we first document the extensive diversity in both primary producer and consumer fatty acid distributions amongst major ecosystems, between habitats and amongst species within habitats. We highlight some of the key nutritional contrasts that can shape behavioural and/or metabolic adaptation in consumers, discussing how consumers can evolve in response to the spatial, seasonal and community‐level variation of resource quality. We propose a hierarchical trait‐based approach for studying the evolution of consumers’ metabolic networks and review the evolutionary genetic mechanisms underpinning consumer adaptation to EPA and DHA distributions. In doing so, we consider how the metabolic traits of consumers are hierarchically structured, from cell membrane function to maternal investment, and have strongly environment‐dependent expression. Finally, we conclude with an outlook on how studying the metabolic adaptation of consumers within the context of nutritional landscapes can open up new opportunities for understanding evolutionary diversification.

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Section: Metabolic Adaptation and Consumer Diversificationmentioning

confidence: 99%

The evolutionary ecology of fatty‐acid variation: Implications for consumer adaptation and diversification

et al. 2021

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“…Within-species trait variability has reverberating impacts across organisation levels, from populations to ecosystem functioning (Des Roches et al, 2018; Jacob et al, 2019; Little et al, 2019; Raffard et al, 2019; Violle et al, 2012). Thus, knowing how phenotypes are redistributed in space during range expansions and range shifts is likely key to understand the ecological and evolutionary dynamics at play in the resulting communities (Cote et al, 2017; Miller et al, 2020; Renault et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Landscape connectivity alters the evolution of density-dependent dispersal during pushed range expansions

Dahirel¹,

Bertin²,

Calcagno³

et al. 2021

Preprint

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As human influence reshapes communities worldwide, many species expand or shift their ranges as a result, with extensive consequences across levels of biological organization. Range expansions can be ranked on a continuum going from pulled dynamics, in which low-density edge populations provide the "fuel" for the advance, to pushed dynamics in which high-density rear populations "push" the expansion forward. While theory suggests that evolution by spatial sorting, a common feature of range expansions, could lead pushed expansions to become pulled with time, empirical comparisons of phenotypic divergence in pushed vs. pulled contexts are lacking. In a previous experiment using Trichogramma brassicae wasps as a model, we showed that expansions were more pushed when connectivity was lower. Here we used descendants from these experimental landscapes to look at how the range expansion process and connectivity interact to shape phenotypic evolution. Interestingly, we found no clear and consistent phenotypic shifts, whether along expansion gradients or between treatments, when we focused on low-density trait expression. However, we found evidence of changes in density-dependence, in particular regarding dispersal: populations went from positive to negative density-dependent dispersal at the expansion edge, but only when connectivity was high. As positive density-dependent dispersal leads to pushed expansions, our results confirm predictions that evolution during range expansions may lead pushed expansions to become pulled, but add nuance by showing environmental context may slow down or cancel this process. This shows we need to jointly consider evolution and ecological context to accurately predict range expansion dynamics and their consequences.

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“…However, it is important to again consider eco‐evolutionary feedbacks within the system. For example, evolution can alter the speed of species' range shifts and thus any attempts to estimate range shifts need to account for evolution (Miller et al, 2020; Nadeau & Urban, 2019). Our review revealed an array of methods for estimating connectivity, including telemetry, movement ecology modeling, and gene flow estimation.…”

Section: Comparison Of Adaptive Capacity and Adaptive Potential Researchmentioning

confidence: 99%

Building a bridge between adaptive capacity and adaptive potential to understand responses to environmental change

Seaborn

Griffith

Kliskey

et al. 2021

Global Change Biology

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Adaptive capacity is a topic at the forefront of environmental change research with roots in both social, ecological, and evolutionary science. It is closely related to the evolutionary biology concept of adaptive potential. In this systematic literature review, we: (1) summarize the history of these topics and related fields; (2) assess relationship(s) between the concepts among disciplines and the use of the terms in climate change research, and evaluate methodologies, metrics, taxa biases, and the geographic scale of studies; and (3) provide a synthetic conceptual framework to clarify concepts. Bibliometric analyses revealed the terms have been used most frequently in conservation and evolutionary biology journals, respectively. There has been a greater growth in studies of adaptive potential than adaptive capacity since 2001, but a greater geographical extent of adaptive capacity studies. Few studies include both, and use is often superficial. Our synthesis considers adaptive potential as one process contributing to adaptive capacity of complex systems, notes "sociological" adaptive capacity definitions include actions aimed at desired outcome (i.e., policies) as a system driver whereas "biological" definitions exclude such drivers, and suggests models of adaptive capacity require integration of evolutionary and social-ecological system components.

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Eco‐evolutionary dynamics of range expansion

Cited by 103 publications

References 102 publications

The evolutionary ecology of fatty‐acid variation: Implications for consumer adaptation and diversification

The evolutionary ecology of fatty‐acid variation: Implications for consumer adaptation and diversification

Landscape connectivity alters the evolution of density-dependent dispersal during pushed range expansions

Building a bridge between adaptive capacity and adaptive potential to understand responses to environmental change

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