1
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Moore MP, Leith NT, Fowler-Finn KD, Medley KA. Human-modified habitats imperil ornamented dragonflies less than their non-ornamented counterparts at local, regional, and continental scales. Ecol Lett 2024; 27:e14455. [PMID: 38849293 DOI: 10.1111/ele.14455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 06/09/2024]
Abstract
Biologists have long wondered how sexual ornamentation influences a species' risk of extinction. Because the evolution of condition-dependent ornamentation can reduce intersexual conflict and accelerate the fixation of advantageous alleles, some theory predicts that ornamented taxa can be buffered against extinction in novel and/or stressful environments. Nevertheless, evidence from the wild remains limited. Here, we show that ornamented dragonflies are less vulnerable to extinction across multiple spatial scales. Population-occupancy models across the Western United States reveal that ornamented species have become more common relative to non-ornamented species over >100 years. Phylogenetic analyses indicate that ornamented species exhibit lower continent-wide extinction risk than non-ornamented species. Finally, spatial analyses of local dragonfly assemblages suggest that ornamented species possess advantages over non-ornamented taxa at living in habitats that have been converted to farms and cities. Together, these findings suggest that ornamented taxa are buffered against contemporary extinction at local, regional, and continental scales.
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Affiliation(s)
- Michael P Moore
- Living Earth Collaborative, Washington University in St. Louis, St. Louis, Missouri, USA
- Department of Integrative Biology, University of Colorado Denver, Denver, Colorado, USA
| | - Noah T Leith
- Department of Biology, Saint Louis University, St. Louis, Missouri, USA
| | - Kasey D Fowler-Finn
- Living Earth Collaborative, Washington University in St. Louis, St. Louis, Missouri, USA
- Department of Biology, Saint Louis University, St. Louis, Missouri, USA
| | - Kim A Medley
- Living Earth Collaborative, Washington University in St. Louis, St. Louis, Missouri, USA
- Tyson Research Center, Washington University in St. Louis, St. Louis, Missouri, USA
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2
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Liu Y, Dodge S, Simcharoen A, Ahearn SC, Smith JLD. Analyzing tiger interaction and home range shifts using a time-geographic approach. MOVEMENT ECOLOGY 2024; 12:13. [PMID: 38310255 PMCID: PMC10838465 DOI: 10.1186/s40462-024-00454-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 01/24/2024] [Indexed: 02/05/2024]
Abstract
BACKGROUND Interaction through movement can be used as a marker to understand and model interspecific and intraspecific species dynamics, and the collective behavior of animals sharing the same space. This research leverages the time-geography framework, commonly used in human movement research, to explore the dynamic patterns of interaction between Indochinese tigers (Panthera tigris corbeti) in the western forest complex (WEFCOM) in Thailand. METHODS We propose and assess ORTEGA, a time-geographic interaction analysis method, to trace spatio-temporal interactions patterns and home range shifts among tigers. Using unique GPS tracking data of tigers in WEFCOM collected over multiple years, concurrent and delayed interaction patterns of tigers are investigated. The outcomes are compared for intraspecific tiger interaction across different genders, relationships, and life stages. Additionally, the performance of ORTEGA is compared to a commonly used proximity-based approach. RESULTS Among the 67 tracked tigers, 42 show concurrent interactions at shared boundaries. Further investigation of five tigers with overlapping home ranges (two adult females, a male, and two young male tigers) suggests that the mother tiger and her two young mostly stay together before their dispersal but interact less post-dispersal. The male tiger increases encounters with the mother tiger while her young shift their home ranges. On another timeline, the neighbor female tiger mostly avoids the mother tiger. Through these home range dynamics and interaction patterns, we identify four types of interaction among these tigers: following, encounter, latency, and avoidance. Compared to the proximity-based approach, ORTEGA demonstrates better detects concurrent mother-young interactions during pre-dispersal, while the proximity-based approach misses many interactions among the dyads. With larger spatial buffers and temporal windows, the proximity-based approach detects more encounters but may overestimate the duration of interaction. CONCLUSIONS This research demonstrates the applicability and merits of ORTEGA as a time-geographic based approach to animal movement interaction analysis. We show time geography can develop valuable, data-driven insights about animal behavior and interactions. ORTEGA effectively traces frequent encounters and temporally delayed interactions between animals, without relying on specific spatial and temporal buffers. Future research should integrate contextual and behavioral information to better identify and characterize the nature of species interaction.
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Affiliation(s)
- Yifei Liu
- Department of Geography, University of California, Santa Barbara, USA.
| | - Somayeh Dodge
- Department of Geography, University of California, Santa Barbara, USA
| | - Achara Simcharoen
- Protected Area Administration, Office 12, Department of National Parks, Wildlife and Plant Conservation, Nakhon Sawan, Thailand
| | | | - James L D Smith
- Department of Fisheries, Wildlife and Conservation Biology, University of Minnesota, Twin Cities, USA
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3
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Murray M, Wright J, Araya-Ajoy YG. Evolutionary rescue from climate change: male indirect genetic effects on lay-dates and their consequences for population persistence. Evol Lett 2024; 8:137-148. [PMID: 38487362 PMCID: PMC10939382 DOI: 10.1093/evlett/qrad022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 04/15/2023] [Accepted: 05/03/2023] [Indexed: 03/17/2024] Open
Abstract
Changes in avian breeding phenology are among the most apparent responses to climate change in free-ranging populations. A key question is whether populations will be able to keep up with the expected rates of environmental change. There is a large body of research on the mechanisms by which avian lay-dates track temperature change and the consequences of (mal)adaptation on population persistence. Often overlooked is the role of males, which can influence the lay-date of their mate through their effect on the prelaying environment. We explore how social plasticity causing male indirect genetic effects can help or hinder population persistence when female genes underpinning lay-date and male genes influencing female's timing of reproduction both respond to climate-mediated selection. We extend quantitative genetic moving optimum models to predict the consequences of social plasticity on the maximum sustainable rate of temperature change, and evaluate our model using a combination of simulated data and empirical estimates from the literature. Our results suggest that predictions for population persistence may be biased if indirect genetic effects and cross-sex genetic correlations are not considered and that the extent of this bias depends on sex differences in how environmental change affects the optimal timing of reproduction. Our model highlights that more empirical work is needed to understand sex-specific effects of environmental change on phenology and the fitness consequences for population dynamics. While we discuss our results exclusively in the context of avian breeding phenology, the approach we take here can be generalized to many different contexts and types of social interaction.
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Affiliation(s)
- Myranda Murray
- Centre for Biodiversity Dynamics (CBD), Department of Biology, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
| | - Jonathan Wright
- Centre for Biodiversity Dynamics (CBD), Department of Biology, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
| | - Yimen G Araya-Ajoy
- Centre for Biodiversity Dynamics (CBD), Department of Biology, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
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4
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Berger D, Liljestrand-Rönn J. Environmental complexity mitigates the demographic impact of sexual selection. Ecol Lett 2024; 27:e14355. [PMID: 38225825 DOI: 10.1111/ele.14355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/30/2023] [Accepted: 12/11/2023] [Indexed: 01/17/2024]
Abstract
Sexual selection and the evolution of costly mating strategies can negatively impact population viability and adaptive potential. While laboratory studies have documented outcomes stemming from these processes, recent observations suggest that the demographic impact of sexual selection is contingent on the environment and therefore may have been overestimated in simple laboratory settings. Here we find support for this claim. We exposed copies of beetle populations, previously evolved with or without sexual selection, to a 10-generation heatwave while maintaining half of them in a simple environment and the other half in a complex environment. Populations with an evolutionary history of sexual selection maintained larger sizes and more stable growth rates in complex (relative to simple) environments, an effect not seen in populations evolved without sexual selection. These results have implications for evolutionary forecasting and suggest that the negative demographic impact of sexually selected mating strategies might be low in natural populations.
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Affiliation(s)
- David Berger
- Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden
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5
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Gallagher JH, Zonana DM, Broder ED, Syammach AM, Tinghitella RM. A novel cricket morph has diverged in song and wing morphology across island populations. J Evol Biol 2023; 36:1609-1617. [PMID: 37885146 DOI: 10.1111/jeb.14235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/11/2023] [Accepted: 08/11/2023] [Indexed: 10/28/2023]
Abstract
Divergence of sexual signals between populations can lead to speciation, yet opportunities to study the immediate aftermath of novel signal evolution are rare. The recent emergence and spread of a new mating song, purring, in Hawaiian populations of the Pacific field cricket (Teleogryllus oceanicus) allows us to investigate population divergence soon after the origin of a new signal. Male crickets produce songs with specialized wing structures to attract mates from afar (calling) and entice them to mate when found (courtship). However, in Hawaii, these songs also attract an eavesdropping parasitoid fly (Ormia ochracea) that kills singing males. The novel purring song, produced with heavily modified wing morphology, attracts female crickets but not the parasitoid fly, acting as a solution to this conflict between natural and sexual selection. We've recently observed increasing numbers of purring males across Hawaii. In this integrative field study, we investigated the distribution of purring and the proportion of purring males relative to other morphs in six populations on four islands and compared a suite of phenotypic traits (wing morphology, calling song and courtship song) that make up this novel signal across populations of purring males. We show that purring is found in varying proportions across five, and is locally dominant in four, Hawaiian populations. We also show that calling songs, courtship songs and wing morphology of purring males differ geographically. Our findings demonstrate the rapid pace of evolution in island populations and provide insights into the emergence and divergence of new sexual signals over time.
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Affiliation(s)
- James H Gallagher
- Department of Biological Sciences, University of Denver, Denver, Colorado, USA
- Department of Evolution and Ecology, University of California Davis, Davis, California, USA
| | - David M Zonana
- Department of Biological Sciences, University of Denver, Denver, Colorado, USA
| | - E Dale Broder
- Department of Biological Sciences, University of Denver, Denver, Colorado, USA
| | - Aziz M Syammach
- Department of Biological Sciences, University of Denver, Denver, Colorado, USA
| | - Robin M Tinghitella
- Department of Biological Sciences, University of Denver, Denver, Colorado, USA
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6
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Hirst MA, Rodas-Martínez AZ, Milich KM, Cortés-Ortiz L. Differences in sperm morphology between Alouatta palliata and Alouatta pigra are consistent with the intensity of sperm competition in each species. Am J Primatol 2023; 85:e23538. [PMID: 37487624 PMCID: PMC10528854 DOI: 10.1002/ajp.23538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 07/03/2023] [Accepted: 07/08/2023] [Indexed: 07/26/2023]
Abstract
The intensity of sperm competition, in which sperm compete within the female reproductive tract to reach and fertilize her eggs, varies in species with different mating systems. Sperm competition is more intense in species where males cannot monopolize access to reproductive females and females mate with multiple males. In this scenario, a morphological change that increases the ability of sperm to reach and fertilize eggs should rapidly spread in the population, leading to sperm morphological differences between closely related species. Differences in sperm morphology have been reported among primate species with different mating systems. However, due to the inherent logistical and ethical difficulties to sample sperm from wild primates, the extent of variation in sperm morphology within species and among closely related species remains understudied. Here, we compared sperm morphological traits from two sister howler monkey species (Alouatta palliata and Alouatta pigra) that have different mating systems to investigate the effect of sperm competition on sperm morphological traits. We predicted that sperm from A. palliata, where females have more opportunities to mate with multiple males, would show differences in traits associated with increase sperm competitiveness compared to A. pigra where females mostly mate with the central male. We used linear mixed models to determine species differences in sperm morphology, controlling for individual variation. We found that midpieces and heads in A. palliata sperm were on average 26.2% and 11.0% longer, respectively, than those of A. pigra. Differences in these traits are important for sperm speed and hydrodynamic movement in other species and can affect fertilization success. This study provides empirical evidence of sperm morphological traits that evolved through sexual selection in sister primate species with different mating systems.
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Affiliation(s)
- Molly A. Hirst
- Department of Ecology and Evolutionary Biology, University of Michigan, 1105 N. University Ave., Ann Arbor, MI, USA 48109
| | - Alba Z. Rodas-Martínez
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, km 0.5 Carr. Villahermosa-Cárdenas S/N, entroque a Bosques de Saloya, 86039 Villahermosa, Tabasco, México
| | - Krista M. Milich
- Department of Anthropology, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, USA 63130
| | - Liliana Cortés-Ortiz
- Department of Ecology and Evolutionary Biology, University of Michigan, 1105 N. University Ave., Ann Arbor, MI, USA 48109
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7
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Yamamichi M, Ellner SP, Hairston NG. Beyond simple adaptation: Incorporating other evolutionary processes and concepts into eco-evolutionary dynamics. Ecol Lett 2023; 26 Suppl 1:S16-S21. [PMID: 37840027 DOI: 10.1111/ele.14197] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 01/18/2023] [Accepted: 02/20/2023] [Indexed: 10/17/2023]
Abstract
Studies of eco-evolutionary dynamics have integrated evolution with ecological processes at multiple scales (populations, communities and ecosystems) and with multiple interspecific interactions (antagonistic, mutualistic and competitive). However, evolution has often been conceptualised as a simple process: short-term directional adaptation that increases population growth. Here we argue that diverse other evolutionary processes, well studied in population genetics and evolutionary ecology, should also be considered to explore the full spectrum of feedback between ecological and evolutionary processes. Relevant but underappreciated processes include (1) drift and mutation, (2) disruptive selection causing lineage diversification or speciation reversal and (3) evolution driven by relative fitness differences that may decrease population growth. Because eco-evolutionary dynamics have often been studied by population and community ecologists, it will be important to incorporate a variety of concepts in population genetics and evolutionary ecology to better understand and predict eco-evolutionary dynamics in nature.
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Affiliation(s)
- Masato Yamamichi
- School of Biological Sciences, The University of Queensland, Brisbane, Queensland, Australia
- Department of International Health and Medical Anthropology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Stephen P Ellner
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, USA
| | - Nelson G Hairston
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, USA
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8
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Pantel JH, Becks L. Statistical methods to identify mechanisms in studies of eco-evolutionary dynamics. Trends Ecol Evol 2023; 38:760-772. [PMID: 37437547 DOI: 10.1016/j.tree.2023.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 07/14/2023]
Abstract
While the reciprocal effects of ecological and evolutionary dynamics are increasingly recognized as an important driver for biodiversity, detection of such eco-evolutionary feedbacks, their underlying mechanisms, and their consequences remains challenging. Eco-evolutionary dynamics occur at different spatial and temporal scales and can leave signatures at different levels of organization (e.g., gene, protein, trait, community) that are often difficult to detect. Recent advances in statistical methods combined with alternative hypothesis testing provides a promising approach to identify potential eco-evolutionary drivers for observed data even in non-model systems that are not amenable to experimental manipulation. We discuss recent advances in eco-evolutionary modeling and statistical methods and discuss challenges for fitting mechanistic models to eco-evolutionary data.
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Affiliation(s)
- Jelena H Pantel
- Ecological Modelling, Faculty of Biology, University of Duisburg-Essen, Universitätsstraße 2, 45117 Essen, Germany.
| | - Lutz Becks
- University of Konstanz, Aquatic Ecology and Evolution, Limnological Institute University of Konstanz Mainaustraße 252 78464, Konstanz/Egg, Germany
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9
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Lerch BA, Servedio MR. Predation drives complex eco-evolutionary dynamics in sexually selected traits. PLoS Biol 2023; 21:e3002059. [PMID: 37011094 PMCID: PMC10101644 DOI: 10.1371/journal.pbio.3002059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 04/13/2023] [Accepted: 03/03/2023] [Indexed: 04/05/2023] Open
Abstract
Predation plays a role in preventing the evolution of ever more complicated sexual displays, because such displays often increase an individual's predation risk. Sexual selection theory, however, omits a key feature of predation in modeling costs to sexually selected traits: Predation is density dependent. As a result of this density dependence, predator-prey dynamics should feed back into the evolution of sexual displays, which, in turn, feeds back into predator-prey dynamics. Here, we develop both population and quantitative genetic models of sexual selection that explicitly link the evolution of sexual displays with predator-prey dynamics. Our primary result is that predation can drive eco-evolutionary cycles in sexually selected traits. We also show that mechanistically modeling the cost to sexual displays as predation leads to novel outcomes such as the maintenance of polymorphism in sexual displays and alters ecological dynamics by muting prey cycles. These results suggest predation as a potential mechanism to maintain variation in sexual displays and underscore that short-term studies of sexual display evolution may not accurately predict long-run dynamics. Further, they demonstrate that a common verbal model (that predation limits sexual displays) with widespread empirical support can result in unappreciated, complex dynamics due to the density-dependent nature of predation.
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Affiliation(s)
- Brian A Lerch
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Maria R Servedio
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
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10
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De Lisle SP. Rapid evolution of ecological sexual dimorphism driven by resource competition. Ecol Lett 2023; 26:124-131. [PMID: 36366784 PMCID: PMC10099664 DOI: 10.1111/ele.14140] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 11/13/2022]
Abstract
Sex differences in ecologically important traits are common in animals and plants, and prompted Darwin to first propose an ecological cause of sexual dimorphism. Despite theoretical plausibility and Darwin's original notion, a role for ecological resource competition in the evolution of sexual dimorphism has never been directly demonstrated and remains controversial. I used experimental evolution in Drosophila melanogaster to test the hypothesis that resource competition can drive the evolution of sex differences in diet. Following just three generations of adaptation, offspring from flies evolved in low-resource, high-competition environments show elevated sexual dimorphism in diet preference compared to both the ancestor and populations evolved on high-resource availability. This increased sexual dimorphism was the result of divergence in male sucrose intake and female yeast intake consistent with the differential nutritional requirements of the sexes. These results provide the first real-time direct evidence for evolution of sexual dimorphism driven by resource competition.
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Affiliation(s)
- Stephen P De Lisle
- Evolutionary Ecology Unit, Department of Biology, Lund University, Lund, Sweden
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11
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Leith NT, Fowler-Finn KD, Moore MP. Evolutionary interactions between thermal ecology and sexual selection. Ecol Lett 2022; 25:1919-1936. [PMID: 35831230 DOI: 10.1111/ele.14072] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/21/2022] [Accepted: 06/09/2022] [Indexed: 12/31/2022]
Abstract
Thermal ecology and mate competition are both pervasive features of ecological adaptation. A surge of recent work has uncovered the diversity of ways in which temperature affects mating interactions and sexual selection. However, the potential for thermal biology and reproductive ecology to evolve together as organisms adapt to their thermal environment has been underappreciated. Here, we develop a series of hypotheses regarding (1) not only how thermal ecology affects mating system dynamics, but also how mating dynamics can generate selection on thermal traits; and (2) how the thermal consequences of mate competition favour the reciprocal co-adaptation of thermal biology and sexual traits. We discuss our hypotheses in the context of both pre-copulatory and post-copulatory processes. We also call for future work integrating experimental and phylogenetic comparative approaches to understand evolutionary feedbacks between thermal ecology and sexual selection. Overall, studying reciprocal feedbacks between thermal ecology and sexual selection may be necessary to understand how organisms have adapted to the environments of the past and could persist in the environments of the future.
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Affiliation(s)
- Noah T Leith
- Department of Biology, Saint Louis University, St. Louis, Missouri, USA
| | - Kasey D Fowler-Finn
- Department of Biology, Saint Louis University, St. Louis, Missouri, USA.,Living Earth Collaborative, Washington University, St. Louis, Missouri, USA
| | - Michael P Moore
- Department of Biology, Saint Louis University, St. Louis, Missouri, USA
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12
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Sanmartín-Villar I, Yu X, Cordero-Rivera A. Direct and cross-generational effects of reproduction on fitness and behavioral variability in male-biased environments. Curr Zool 2022. [DOI: 10.1093/cz/zoac045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Population structure determines individuals’ interactions and trade-offs with evolutionary consequences. Male-biased populations increase intrasexual competition and intersexual harassment, reducing female resource acquisition, and thus, resources availability for the following generation. We analyzed direct and cross-generational effects of male harassment in two generations of damselflies (Odonata). We exposed adult females to treatments with different sex-ratio and density (balanced and male-biased) to modify the male harassment level. We analyzed female fecundity, fertility, and number of faecal deposits as an indirect measure of resources acquisition. We studied female flight performance after repeated exposures to males. We analyzed survivorship, development, exploration, thigmotaxis, and feeding latency of larvae produced by the experimental females. In both generations, we analyzed four metrics of behavior: mean value, interindividual differences in plasticity, intra-individual unpredictability, and repeatability. Mating duration increased in male-biased treatment, whereas female resources acquisition and fertility decreased. Females that mated longer showed higher fecundity when they were exposed to balanced treatment, but not if they were exposed to male-biased treatment. Females from the male-biased treatment showed interindividual differences in plasticity and no repeatability in flight performance. Offspring showed balanced sex-ratio and similar survivorship, development, and feeding latency independently of the parental treatment; however, females exposed to male-biased treatment produced offspring with higher differences in exploration plasticity and daughters less explorative and with higher unpredictable thigmotaxis. We propose prolonged copulation as courtship at balanced sex-ratio but a cost to females under male-biased sex-ratio. Cross-generational effects in behavioral variability may be a mechanism to cope with predicted future environments.
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Affiliation(s)
- Iago Sanmartín-Villar
- Universidade de Vigo, ECOEVO Lab, Escola de Enxeñaría Forestal, Campus Universitario A Xunqueira , 36005 Pontevedra, Galiza , Spain
| | - Xin Yu
- Universidade de Vigo, ECOEVO Lab, Escola de Enxeñaría Forestal, Campus Universitario A Xunqueira , 36005 Pontevedra, Galiza , Spain
- College of Life Sciences, Chongqing Normal University , Daxuecheng Middle Rd, Shapingba District, Chongqing 401333 , China
| | - Adolfo Cordero-Rivera
- Universidade de Vigo, ECOEVO Lab, Escola de Enxeñaría Forestal, Campus Universitario A Xunqueira , 36005 Pontevedra, Galiza , Spain
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13
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Álvarez B, Koene JM. Cognition and Its Shaping Effect on Sexual Conflict: Integrating Biology and Psychology. Front Integr Neurosci 2022; 16:826304. [PMID: 35515268 PMCID: PMC9062228 DOI: 10.3389/fnint.2022.826304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/22/2022] [Indexed: 11/13/2022] Open
Abstract
While genetic variation is of crucial importance for organisms to be able to adapt to their ever-changing environments over generations, cognitive processes can serve the same purpose by acting at shorter time scales. Cognition, and its resulting behaviour, allows animals to display flexible, fast and reversible responses that, without implying a genetic change, are crucial for adaptation and survival. In the research field on sexual conflict, where studies focus on male and female mating strategies that increase the individual’s reproductive fitness while forcing a cost on the partner, the role that cognition may play in how such strategies can be optimised has been widely overlooked. However, a careful analysis of behavioural studies shows that animals can develop and change their responses depending on what they perceive as well as on what they can predict from their experience, which can be of prime importance for optimising their reproductive fitness. As will be reviewed here, largely psychological processes, such as perception, memory, learning and decision-making, can not only modulate sexual conflict, but can also have a big impact on the reproductive success of a given individual. This review highlights the need for a more integrative view of sexual conflict where cognitive processes are also considered as a fundamental part of an animal’s adaptive mating response.
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Affiliation(s)
- Beatriz Álvarez
- Department of Psychology, Universidad de Oviedo, Oviedo, Spain
- *Correspondence: Beatriz Álvarez,
| | - Joris M. Koene
- Department of Ecology and Evolution, Amsterdam Institute for Life and Environment (A-LIFE), Vrije Universiteit, Amsterdam, Netherlands
- Naturalis Biodiversity Centre, Leiden, Netherlands
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14
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Fry JD. A reexamination of theoretical arguments that indirect selection on mate preference is likely to be weaker than direct selection. Evol Lett 2022; 6:110-117. [PMID: 35386835 PMCID: PMC8966468 DOI: 10.1002/evl3.276] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 01/15/2022] [Accepted: 01/18/2022] [Indexed: 11/30/2022] Open
Abstract
Female preference for male ornaments or displays can evolve by indirect selection resulting from genetic benefits of mate choices, or by direct selection resulting from nongenetic benefits or selection on sensory systems occurring in other contexts. In an influential paper, Kirkpatrick and Barton used a good-genes model and evolutionary rates estimated from the fossil record to conclude that indirect selection on preference is likely to be weak compared to typical strengths of direct selection. More recent authors have extrapolated from Kirkpatrick and Barton's conclusions to suggest that the presence of preference-trait genetic correlations in equations for indirect but not direct selection gives a purely theoretical basis to the conclusion that the former is likely to be weaker than the latter. Here, I challenge these views, and argue that the relative importance of direct and indirect selection on preference is an empirical issue that defies simple generalizations. First, I show that Kirkpatrick and Barton based their conclusion on a questionable claim about typical rates of evolution due to direct selection. Second, I argue that claiming that direct selection on preference is stronger than indirect selection because only equations for the latter contain a genetic correlation mistakes the mathematical simplicity with which direct selection is usually represented for evidence regarding its magnitude. By comparing a simple equation for the selection response of preference caused by somatic ("direct") benefits to Kirkpatrick and Barton's result for the response to indirect selection, I show that indirect selection on preference is not inherently weaker than direct selection. I also point out an important but overlooked reason why selection on preference under the sensory bias hypothesis can be expected to be less effective in the long run than that from either somatic or genetic benefits of mate choices.
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Affiliation(s)
- James D. Fry
- Department of BiologyUniversity of RochesterRochesterNew York14627
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15
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De Lisle SP, Schrieber SJ, Bolnick DI. Complex community-wide consequences of consumer sexual dimorphism. J Anim Ecol 2022; 91:958-969. [PMID: 35262914 PMCID: PMC9314848 DOI: 10.1111/1365-2656.13685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 02/08/2022] [Indexed: 11/29/2022]
Abstract
Sexual dimorphism is a ubiquitous source of within‐species variation, yet the community‐level consequences of sex differences remain poorly understood. Here, we analyse a bitrophic model of two competing resource species and a sexually reproducing consumer species. We show that consumer sex differences in resource acquisition can have striking consequences for consumer‐resource coexistence, abundance and dynamics. Under both direct interspecific competition and apparent competition between two resource species, sexual dimorphism in consumers' attack rates can mediate coexistence of the resource species, while in other cases can lead to exclusion when stable coexistence is typically expected. Slight sex differences in total resource acquisition also can reverse competitive outcomes and lead to density cycles. These effects are expected whenever both consumer sexes require different amounts or types of resources to reproduce. Our results suggest that consumer sexual dimorphism, which is common, has wide‐reaching implications for the assembly and dynamics of natural communities.
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Affiliation(s)
- Stephen P De Lisle
- Department of Ecology & Evolutionary Biology, University of Connecticut, Storrs, CT 06269.,Present Address: Evolutionary Ecology Unit, Department of Biology, Lund University, Sölvegatan 37, 22362, Lund, Sweden
| | - Sebastian J Schrieber
- Department of Evolution and Ecology and Center for Population Biology, University of California, Davis, CA, 95616
| | - Daniel I Bolnick
- Department of Ecology & Evolutionary Biology, University of Connecticut, Storrs, CT 06269
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16
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Cronin AD, Smit JAH, Muñoz MI, Poirier A, Moran PA, Jerem P, Halfwerk W. A comprehensive overview of the effects of urbanisation on sexual selection and sexual traits. Biol Rev Camb Philos Soc 2022; 97:1325-1345. [PMID: 35262266 PMCID: PMC9541148 DOI: 10.1111/brv.12845] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 02/11/2022] [Accepted: 02/16/2022] [Indexed: 12/18/2022]
Abstract
Urbanisation can affect mating opportunities and thereby alter inter- and intra-sexual selection pressures on sexual traits. Biotic and abiotic urban conditions can influence an individual's success in pre- and post-copulatory mating, for example through impacts on mate attraction and mate preference, fertilisation success, resource competition or rival interactions. Divergent sexual selection pressures can lead to differences in behavioural, physiological, morphological or life-history traits between urban and non-urban populations, ultimately driving adaptation and speciation. Most studies on urban sexual selection and mating interactions report differences between urban and non-urban populations or correlations between sexual traits and factors associated with increased urbanisation, such as pollution, food availability and risk of predation and parasitism. Here we review the literature on sexual selection and sexual traits in relation to urbanisation or urban-associated conditions. We provide an extensive list of abiotic and biotic factors that can influence processes involved in mating interactions, such as signal production and transmission, mate choice and mating opportunities. We discuss all relevant data through the lens of two, non-mutually exclusive theories on sexual selection, namely indicator and sensory models. Where possible, we indicate whether these models provide the same or different predictions regarding urban-adapted sexual signals and describe different experimental designs that can be useful for the different models as well as to investigate the drivers of sexual selection. We argue that we lack a good understanding of: (i) the factors driving urban sexual selection; (ii) whether reported changes in traits result in adaptive benefits; and (iii) whether these changes reflect a short-term ecological, or long-term evolutionary response. We highlight that urbanisation provides a unique opportunity to study the process and outcomes of sexual selection, but that this requires a highly integrative approach combining experimental and observational work.
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Affiliation(s)
- Andrew D Cronin
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Judith A H Smit
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Matías I Muñoz
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Armand Poirier
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Peter A Moran
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Paul Jerem
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Wouter Halfwerk
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
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17
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Lopez-Idiaquez D, Teplitsky C, Grégoire A, Fargevieille A, Rey MD, Franceschi CD, Charmantier A, Doutrelant C. Long-term decrease in coloration: a consequence of climate change? Am Nat 2022; 200:32-47. [DOI: 10.1086/719655] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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OUP accepted manuscript. Behav Ecol 2022. [DOI: 10.1093/beheco/arac049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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19
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Heinen‐Kay JL, Kay AD, Zuk M. How urbanization affects sexual communication. Ecol Evol 2021; 11:17625-17650. [PMID: 35003629 PMCID: PMC8717295 DOI: 10.1002/ece3.8328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 11/17/2022] Open
Abstract
Urbanization is rapidly altering landscapes worldwide, changing environmental conditions, and creating novel selection pressures for many organisms. Local environmental conditions affect the expression and evolution of sexual signals and mating behaviors; changes in such traits have important evolutionary consequences because of their effect on reproduction. In this review, we synthesize research investigating how sexual communication is affected by the environmental changes associated with urbanization-including pollution from noise, light, and heavy metals, habitat fragmentation, impervious surfaces, urban heat islands, and changes in resources and predation. Urbanization often has negative effects on sexual communication through signal masking, altering condition-dependent signal expression, and weakening female preferences. Though there are documented instances of seemingly adaptive shifts in trait expression, the ultimate impact on fitness is rarely tested. The field of urban evolution is still relatively young, and most work has tested whether differences occur in response to various aspects of urbanization. There is limited information available about whether these responses represent phenotypic plasticity or genetic changes, and the extent to which observed shifts in sexual communication affect reproductive fitness. Our understanding of how sexual selection operates in novel, urbanized environments would be bolstered by more studies that perform common garden studies and reciprocal transplants, and that simultaneously evaluate multiple environmental factors to tease out causal drivers of observed phenotypic shifts. Urbanization provides a unique testing ground for evolutionary biologists to study the interplay between ecology and sexual selection, and we suggest that more researchers take advantage of these natural experiments. Furthermore, understanding how sexual communication and mating systems differ between cities and rural areas can offer insights on how to mitigate negative, and accentuate positive, consequences of urban expansion on the biota, and provide new opportunities to underscore the relevance of evolutionary biology in the Anthropocene.
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Affiliation(s)
- Justa L. Heinen‐Kay
- Department of Ecology, Evolution & BehaviorUniversity of MinnesotaSt. PaulUSA
| | - Adam D. Kay
- Biology DepartmentUniversity of St. ThomasSt. PaulUSA
| | - Marlene Zuk
- Department of Ecology, Evolution & BehaviorUniversity of MinnesotaSt. PaulUSA
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20
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Winkler L, Moiron M, Morrow EH, Janicke T. Stronger net selection on males across animals. eLife 2021; 10:e68316. [PMID: 34787569 PMCID: PMC8598160 DOI: 10.7554/elife.68316] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 10/30/2021] [Indexed: 11/22/2022] Open
Abstract
Sexual selection is considered the major driver for the evolution of sex differences. However, the eco-evolutionary dynamics of sexual selection and their role for a population's adaptive potential to respond to environmental change have only recently been explored. Theory predicts that sexual selection promotes adaptation at a low demographic cost only if sexual selection is aligned with natural selection and if net selection is stronger on males compared to females. We used a comparative approach to show that net selection is indeed stronger in males and provide preliminary support that this sex bias is associated with sexual selection. Given that both sexes share the vast majority of their genes, our findings corroborate the notion that the genome is often confronted with a more stressful environment when expressed in males. Collectively, our study supports one of the long-standing key assumptions required for sexual selection to bolster adaptation, and sexual selection may therefore enable some species to track environmental change more efficiently.
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Affiliation(s)
| | - Maria Moiron
- CEFE, CNRS, Univ Montpellier, EPHE, IRDMontpellierFrance
| | - Edward H Morrow
- Department for Environmental and Life Sciences, Karlstad UniversityKarlstadSweden
| | - Tim Janicke
- Applied Zoology, Technical University DresdenDresdenGermany
- CEFE, CNRS, Univ Montpellier, EPHE, IRDMontpellierFrance
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21
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Smallegange IM. Integrating developmental plasticity into eco-evolutionary population dynamics. Trends Ecol Evol 2021; 37:129-137. [PMID: 34635340 DOI: 10.1016/j.tree.2021.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/16/2021] [Accepted: 09/21/2021] [Indexed: 10/20/2022]
Abstract
There are increasing calls to incorporate developmental plasticity into the framework of eco-evolutionary dynamics. The current way is via genotype-specified reaction norms in which inheritance and phenotype expression are gene-based. I propose a developmental system perspective in which phenotypes are formed during individual development in a process comprising a complex set of interactions that involve genes, biochemistry, somatic state, and the (a)biotic environment, and where the developmental system is the unit of phenotype evolution. I explain how the two perspectives differ in assumptions and predictions, which can be contrasted using cue-and-response systems of anticipatory or mitigating developmental plasticity. This can lead to new ways of eco-evolutionary thinking, and deliver important explanations of how populations respond to environmental change through evolved developmental plasticity.
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Affiliation(s)
- Isabel M Smallegange
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, PO Box 94240, 1090, GE, Amsterdam, The Netherlands; School of Natural & Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.
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22
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Plesnar‐Bielak A, Łukasiewicz A. Sexual conflict in a changing environment. Biol Rev Camb Philos Soc 2021; 96:1854-1867. [PMID: 33960630 PMCID: PMC8518779 DOI: 10.1111/brv.12728] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 04/14/2021] [Accepted: 04/16/2021] [Indexed: 01/02/2023]
Abstract
Sexual conflict has extremely important consequences for various evolutionary processes including its effect on local adaptation and extinction probability during environmental change. The awareness that the intensity and dynamics of sexual conflict is highly dependent on the ecological setting of a population has grown in recent years, but much work is yet to be done. Here, we review progress in our understanding of the ecology of sexual conflict and how the environmental sensitivity of such conflict feeds back into population adaptivity and demography, which, in turn, determine a population's chances of surviving a sudden environmental change. We link two possible forms of sexual conflict - intralocus and interlocus sexual conflict - in an environmental context and identify major gaps in our knowledge. These include sexual conflict responses to fluctuating and oscillating environmental changes and its influence on the interplay between interlocus and intralocus sexual conflict, among others. We also highlight the need to move our investigations into more natural settings and to investigate sexual conflict dynamics in wild populations.
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Affiliation(s)
- Agata Plesnar‐Bielak
- Institute of Environmental Sciences, Faculty of BiologyJagiellonian Universityul. Gronostajowa 730‐387KrakówPoland
| | - Aleksandra Łukasiewicz
- Department of Environmental and Biological SciencesUniversity of Eastern FinlandPO Box 11180101JoensuuFinland
- Evolutionary Biology Group, Faculty of BiologyAdam Mickiewicz Universityul. Uniwersytetu Poznańskiego 661‐614PoznańPoland
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23
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Morita K, Yamamichi M. How does the magnitude of genetic variation affect ecological and reproductive character displacement? POPUL ECOL 2021. [DOI: 10.1002/1438-390x.12097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Keiichi Morita
- Department of General Systems Studies The University of Tokyo Tokyo Japan
| | - Masato Yamamichi
- School of Biological Sciences The University of Queensland Brisbane Queensland Australia
- Department of International Health and Medical Anthropology, Institute of Tropical Medicine Nagasaki University Nagasaki Japan
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24
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Bocedi G. Ecological sexual dimorphism is modulated by the spatial scale of intersexual resource competition. J Anim Ecol 2021; 90:1810-1813. [PMID: 34346069 DOI: 10.1111/1365-2656.13556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 06/16/2021] [Indexed: 12/01/2022]
Abstract
In Focus: Li, X-Y., & H. Kokko. (2021). Sexual dimorphism driven by intersexual resource competition: Why is it rare, and where to look for it? Journal of Animal Ecology, 00, 1-13. Ecological sexual dimorphism, that is differences between the sexes in traits that are naturally selected as opposed to sexually selected, is gaining increasing attention after having often been dismissed as the 'less-parsimonious' explanation for differences between sexes. One potential driver of ecological sexual dimorphism is intersexual resource competition, in a process analogous to ecological character displacement between species; yet, clear empirical examples are scarce. Li and Kokko present mathematical models that introduce novel pieces to the puzzle: the role of the scale of mating competition and the spatial variation in resource availability. They show that ecological sexual dimorphism evolves when local mating groups are small (e.g. monogamous pairs) and when different resources are homogeneously available across habitats. Counterintuitively, larger mating groups (e.g. polygyny), and consequently higher intralocus sexual conflict, lead to sexual monomorphism. Habitat heterogeneity also leads to overlapping niches, although it can sometimes drive polymorphism within sexes. This study highlights why the conditions for intrasexual resource competition to drive evolution of sexual dimorphism are stringent, even in the absence of genetic constraints or competing species. Crucially, it highlights the importance of considering the mating system and the spatial scale of resource competition for understanding the occurrence of ecological sexual dimorphism, showing a large potential for future work considering different aspects of species' life histories and spatial dynamics.
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Affiliation(s)
- Greta Bocedi
- School of Biological Sciences, University of Aberdeen, Aberdeen, UK
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25
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Miñano MR, While GM, Yang W, Burridge CP, Sacchi R, Zuffi M, Scali S, Salvi D, Uller T. Climate Shapes the Geographic Distribution and Introgressive Spread of Color Ornamentation in Common Wall Lizards. Am Nat 2021; 198:379-393. [PMID: 34403317 DOI: 10.1086/715186] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractClimate can exert an effect on the strength of sexual selection, but empirical evidence is limited. Here, we tested whether climate predicts the geographic distribution and introgressive spread of sexually selected male color ornamentation across 114 populations of the common wall lizard, Podarcis muralis. Coloration was highly structured across the landscape and did not reflect genetic differentiation. Instead, color ornamentation was consistently exaggerated in hot and dry environments, suggesting that climate-driven selection maintains geographic variation in spite of gene flow. Introgression of color ornamentation into a distantly related lineage appears to be ongoing and was particularly pronounced in warm climates with wet winters and dry summers. Combined, these results suggest that sexual ornamentation is consistently favored in climates that allow a prolonged reproductive season and high and reliable opportunities for lizard activity. This pattern corroborates theoretical predictions that such climatic conditions reduce the temporal clustering of receptive females and increase male-male competition, resulting in strong sexual selection. In summary, we provide compelling evidence for the importance of climate for the evolution of color ornamentation, and we demonstrate that geographic variation in the strength of sexual selection influences introgression of this phenotype.
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26
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Moore MP, Hersch K, Sricharoen C, Lee S, Reice C, Rice P, Kronick S, Medley KA, Fowler-Finn KD. Sex-specific ornament evolution is a consistent feature of climatic adaptation across space and time in dragonflies. Proc Natl Acad Sci U S A 2021; 118:e2101458118. [PMID: 34260398 PMCID: PMC8285952 DOI: 10.1073/pnas.2101458118] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Adaptation to different climates fuels the origins and maintenance of biodiversity. Detailing how organisms optimize fitness for their local climates is therefore an essential goal in biology. Although we increasingly understand how survival-related traits evolve as organisms adapt to climatic conditions, it is unclear whether organisms also optimize traits that coordinate mating between the sexes. Here, we show that dragonflies consistently adapt to warmer climates across space and time by evolving less male melanin ornamentation-a mating-related trait that also absorbs solar radiation and heats individuals above ambient temperatures. Continent-wide macroevolutionary analyses reveal that species inhabiting warmer climates evolve less male ornamentation. Community-science observations across 10 species indicate that populations adapt to warmer parts of species' ranges through microevolution of smaller male ornaments. Observations from 2005 to 2019 detail that contemporary selective pressures oppose male ornaments in warmer years; and our climate-warming projections predict further decreases by 2070. Conversely, our analyses show that female ornamentation responds idiosyncratically to temperature across space and time, indicating the sexes evolve in different ways to meet the demands of the local climate. Overall, these macro- and microevolutionary findings demonstrate that organisms predictably optimize their mating-related traits for the climate just as they do their survival-related traits.
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Affiliation(s)
- Michael P Moore
- Living Earth Collaborative, Washington University, St. Louis, MO 63130;
| | - Kaitlyn Hersch
- Department of Biology, Washington University, St. Louis, MO 63130
| | | | - Sarah Lee
- Department of Biology, Washington University, St. Louis, MO 63130
| | - Caitlin Reice
- Department of Biology, Washington University, St. Louis, MO 63130
| | - Paul Rice
- Department of Biology, Washington University, St. Louis, MO 63130
| | - Sophie Kronick
- Department of Earth and Planetary Sciences, Washington University, St. Louis, MO 63130
| | - Kim A Medley
- Living Earth Collaborative, Washington University, St. Louis, MO 63130
- Tyson Research Center, Washington University, Eureka, MO 63025
| | - Kasey D Fowler-Finn
- Living Earth Collaborative, Washington University, St. Louis, MO 63130
- Department of Biology, Saint Louis University, St. Louis, MO 63103
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27
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Flintham EO, Savolainen V, Mullon C. Dispersal Alters the Nature and Scope of Sexually Antagonistic Variation. Am Nat 2021; 197:543-559. [PMID: 33908829 DOI: 10.1086/713739] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AbstractIntralocus sexual conflict, or sexual antagonism, occurs when alleles have opposing fitness effects in the two sexes. Previous theory suggests that sexual antagonism is a driver of genetic variation by generating balancing selection. However, most of these studies assume that populations are well mixed, neglecting the effects of spatial subdivision. Here, we use mathematical modeling to show that limited dispersal changes evolution at sexually antagonistic autosomal and X-linked loci as a result of inbreeding and sex-specific kin competition. We find that if the sexes disperse at different rates, kin competition within the philopatric sex biases intralocus conflict in favor of the more dispersive sex. Furthermore, kin competition diminishes the strength of balancing selection relative to genetic drift, reducing genetic variation in small subdivided populations. Meanwhile, by decreasing heterozygosity, inbreeding reduces the scope for sexually antagonistic polymorphism due to nonadditive allelic effects, and this occurs to a greater extent on the X chromosome than autosomes. Overall, our results indicate that spatial structure is a relevant factor in predicting where sexually antagonistic alleles might be observed. We suggest that sex-specific dispersal ecology and demography can contribute to interspecific and intragenomic variation in sexual antagonism.
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28
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Tinghitella RM, Broder ED, Gallagher JH, Wikle AW, Zonana DM. Responses of intended and unintended receivers to a novel sexual signal suggest clandestine communication. Nat Commun 2021; 12:797. [PMID: 33542210 PMCID: PMC7862365 DOI: 10.1038/s41467-021-20971-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 01/04/2021] [Indexed: 01/30/2023] Open
Abstract
Inadvertent cues can be refined into signals through coevolution between signalers and receivers, yet the earliest steps in this process remain elusive. In Hawaiian populations of the Pacific field cricket, a new morph producing a novel and incredibly variable song (purring) has spread across islands. Here we characterize the current sexual and natural selection landscape acting on the novel signal by (1) determining fitness advantages of purring through attraction to mates and protection from a prominent deadly natural enemy, and (2) testing alternative hypotheses about the strength and form of selection acting on the novel signal. In field studies, female crickets respond positively to purrs, but eavesdropping parasitoid flies do not, suggesting purring may allow private communication among crickets. Contrary to the sensory bias and preference for novelty hypotheses, preference functions (selective pressure) are nearly flat, driven by extreme inter-individual variation in function shape. Our study offers a rare empirical test of the roles of natural and sexual selection in the earliest stages of signal evolution.
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Affiliation(s)
| | - E Dale Broder
- Department of Biology, St Ambrose University, Davenport, IA, USA
| | - James H Gallagher
- Department of Biological Sciences, University of Denver, Denver, CO, USA
| | - Aaron W Wikle
- Department of Biological Sciences, University of Denver, Denver, CO, USA
| | - David M Zonana
- Department of Biological Sciences, University of Denver, Denver, CO, USA
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29
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Broder ED, Elias DO, Rodríguez RL, Rosenthal GG, Seymoure BM, Tinghitella RM. Evolutionary novelty in communication between the sexes. Biol Lett 2021; 17:20200733. [PMID: 33529546 PMCID: PMC8086948 DOI: 10.1098/rsbl.2020.0733] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/11/2021] [Indexed: 12/18/2022] Open
Abstract
The diversity of signalling traits within and across taxa is vast and striking, prompting us to consider how novelty evolves in the context of animal communication. Sexual selection contributes to diversification, and here we endeavour to understand the initial conditions that facilitate the maintenance or elimination of new sexual signals and receiver features. New sender and receiver variants can occur through mutation, plasticity, hybridization and cultural innovation, and the initial conditions of the sender, the receiver and the environment then dictate whether a novel cue becomes a signal. New features may arise in the sender, the receiver or both simultaneously. We contend that it may be easier than assumed to evolve new sexual signals because sexual signals may be arbitrary, sexual conflict is common and receivers are capable of perceiving much more of the world than just existing sexual signals. Additionally, changes in the signalling environment can approximate both signal and receiver changes through a change in transmission characteristics of a given environment or the use of new environments. The Anthropocene has led to wide-scale disruption of the environment and may thus generate opportunity to directly observe the evolution of new signals to address questions that are beyond the reach of phylogenetic approaches.
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Affiliation(s)
- E. Dale Broder
- Department of Biology, St Ambrose University, Davenport, IA 52803, USA
| | - Damian O. Elias
- Department of Environmental Science, Policy and Management, UC Berkeley, Berkeley, CA 94720, USA
| | - Rafael L. Rodríguez
- Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
| | - Gil G. Rosenthal
- Department of Biology, Texas A&M, College Station, TX 77843, USA
| | - Brett M. Seymoure
- Living Earth Collaborative, Washington University in St. Louis, St. Louis, MO 63130, USA
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30
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Kyogoku D, Sota T. Sexual selection increased offspring production via evolution of male and female traits. J Evol Biol 2020; 34:501-511. [PMID: 33314378 DOI: 10.1111/jeb.13753] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 11/06/2020] [Accepted: 11/22/2020] [Indexed: 11/28/2022]
Abstract
Phenotypic evolution driven by sexual selection can impact the fitness of individuals and thus population performance through multiple mechanisms, but it is unresolved how and when sexual selection affects offspring production by females. We examined the effects of sexual selection on offspring production by females using replicated experimental evolutionary lines of Callosobruchus chinensis that were kept under polygamy (with sexual selection) or monogamy (without sexual selection) for 21 generations. We found that polygamous-line pairs produced more offspring than monogamous-line pairs, because polygamous-line beetles evolved to be larger than monogamous-line beetles, and larger females were more fecund. Egg hatchability did not differ between polygamous- and monogamous-line pairs, as a result of the positive and negative effects of sexual selection cancelling out. When mated with an individual from a common tester line, both polygamous-line females and males showed higher hatchability in resultant eggs than monogamous ones. Further, cohabitation with a male reduced egg hatchability, and this effect was more pronounced in polygamous-line than in monogamous-line males. These results demonstrate multiple mechanisms by which sexual selection affects female fitness, with the net effect being positive. Analyses of how development time, body size and male genital morphology were influenced by selection regime suggest that these results arose from both evolution via good-gene processes and sexually antagonistic selection. Our results are also consistent with the hypothesis that the fitness consequences of sexual selection for females are dependent on the evolutionary history of the population.
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Affiliation(s)
- Daisuke Kyogoku
- Ecological Integration, Graduate School of Life Sciences, Tohoku University, Sendai, Japan.,Department of Zoology, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - Teiji Sota
- Department of Zoology, Graduate School of Science, Kyoto University, Kyoto, Japan
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31
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Hasegawa M, Arai E. Opposing population trends of fork-tailed swallows and reddish-coloured swallows in our changing world. J Evol Biol 2020; 34:331-338. [PMID: 33164309 DOI: 10.1111/jeb.13736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/20/2020] [Accepted: 10/31/2020] [Indexed: 12/01/2022]
Abstract
Sexual selection can in theory lead to positive and negative effect on population-level fitness and hence population increase/decline in our changing world, but the empirical evidence is scarce. Using a phylogenetic comparative approach, we examined whether and how different sexually selected ornaments affect recent population trends and extinction risk in swallows (Aves: Hirundininae). We found that population trends decreased with increasing depth of male tails, that is a well-known sexually selected trait, and increased with increasing score of reddish plumage coloration, another sexually selected ornament. Similar contrasting patterns were observed for extinction risk. These findings indicate ornament-specific population trends and extinction risk, perhaps due to the differential costs and benefits of ornamentation. Previous studies have mostly focused on the overall effects of sexual selection by combining different kinds of traits, presumed to be sexually selected. However, as predicted by theory, sexual selection would not be a process with the same universal effect on population dynamics as we found here. Divergent ecological consequences would occur through minor differences in sexual selection, which should not be dismissed in future studies.
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Affiliation(s)
- Masaru Hasegawa
- Department of Environmental Science, Ishikawa Prefectural University, Ishikawa, Japan
| | - Emi Arai
- Department of Evolutionary Studies of Biosystems, Sokendai (The Graduate University for Advanced Studies), Kanagawa, Japan
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Kyogoku D, Wheatcroft D. Heterospecific mating interactions as an interface between ecology and evolution. J Evol Biol 2020; 33:1330-1344. [PMID: 32762053 DOI: 10.1111/jeb.13687] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 07/21/2020] [Indexed: 12/25/2022]
Abstract
Reproductive interference (costly interspecific sexual interactions) is well-understood to promote divergence in mating-relevant traits (i.e. reproductive character displacement: RCD), but it can also reduce population growth, eventually leading to local extinction of one of the species. The ecological and evolutionary processes driven by reproductive interference can interact with each other. These interactions are likely to influence whether the outcome is coexistence or extinction, but remain little studied. In this paper, we first develop an eco-evolutionary perspective on reproductive interference by integrating ecological and evolutionary processes in a common framework. We also present a simple model to demonstrate the eco-evolutionary dynamics of reproductive interference. We then identify a number of factors that are likely to influence the relative likelihoods of extinction or RCD. We discuss particularly relevant factors by classifying them into four categories: the nature of the traits responding to selection, the mechanisms determining the expression of these traits, mechanisms of reproductive interference and the ecological background. We highlight previously underappreciated ways in which these factors may influence the relative likelihoods of RCD and local extinction. By doing so, we also identify questions and future directions that will increase our holistic understanding of the outcomes of reproductive interference.
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García-Roa R, Garcia-Gonzalez F, Noble DWA, Carazo P. Temperature as a modulator of sexual selection. Biol Rev Camb Philos Soc 2020; 95:1607-1629. [PMID: 32691483 DOI: 10.1111/brv.12632] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 12/25/2022]
Abstract
A central question in ecology and evolution is to understand why sexual selection varies so much in strength across taxa; it has long been known that ecological factors are crucial to this. Temperature is a particularly salient abiotic ecological factor that modulates a wide range of physiological, morphological and behavioural traits, impacting individuals and populations at a global taxonomic scale. Furthermore, temperature exhibits substantial temporal variation (e.g. daily, seasonally and inter-seasonally), and hence for most species in the wild sexual selection will regularly unfold in a dynamic thermal environment. Unfortunately, studies have so far almost completely neglected the role of temperature as a modulator of sexual selection. Here, we outline the main pathways through which temperature can affect the intensity and form (i.e. mechanisms) of sexual selection, via: (i) direct effects on secondary sexual traits and preferences (i.e. trait variance, opportunity for selection and trait-fitness covariance), and (ii) indirect effects on key mating parameters, sex-specific reproductive costs/benefits, trade-offs, demography and correlated abiotic factors. Building upon this framework, we show that, by focusing exclusively on the first-order effects that environmental temperature has on traits linked with individual fitness and population viability, current global warming studies may be ignoring eco-evolutionary feedbacks mediated by sexual selection. Finally, we tested the general prediction that temperature modulates sexual selection by conducting a meta-analysis of available studies experimentally manipulating temperature and reporting effects on the variance of male/female reproductive success and/or traits under sexual selection. Our results show a clear association between temperature and sexual selection measures in both sexes. In short, we suggest that studying the feedback between temperature and sexual selection processes may be vital to developing a better understanding of variation in the strength of sexual selection in nature, and its consequences for population viability in response to environmental change (e.g. global warming).
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Affiliation(s)
- Roberto García-Roa
- Behaviour and Evolution, Ethology Lab, Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, C/Catedrático José Beltrán 2, Paterna, Valencia, 46980, Spain
| | - Francisco Garcia-Gonzalez
- Doñana Biological Station, Spanish Research Council CSIC, c/Americo Vespucio, 26, Isla de la Cartuja, Sevilla, 41092, Spain.,Centre for Evolutionary Biology, School of Biological Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - Daniel W A Noble
- Ecology and Evolution Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales, 2052, Australia.,Division of Ecology and Evolution, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, 2061, Australia
| | - Pau Carazo
- Behaviour and Evolution, Ethology Lab, Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, C/Catedrático José Beltrán 2, Paterna, Valencia, 46980, Spain
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Yamamichi M, Kyogoku D, Iritani R, Kobayashi K, Takahashi Y, Tsurui-Sato K, Yamawo A, Dobata S, Tsuji K, Kondoh M. Intraspecific Adaptation Load: A Mechanism for Species Coexistence. Trends Ecol Evol 2020; 35:897-907. [PMID: 32674869 DOI: 10.1016/j.tree.2020.05.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 05/22/2020] [Accepted: 05/28/2020] [Indexed: 12/13/2022]
Abstract
Evolutionary ecological theory suggests that selection arising from interactions with conspecifics, such as sexual and kin selection, may result in evolution of intraspecific conflicts and evolutionary 'tragedy of the commons'. Here, we propose that such an evolution of conspecific conflicts may affect population dynamics in a way that enhances species coexistence. Empirical evidence and theoretical models suggest that more abundant species is more susceptible to invasion of 'selfish' individuals that increase their own reproductive success at the expense of population growth (intraspecific adaptation load). The density-dependent intraspecific adaptation load gives rise to a self-regulation mechanism at the population level, and stabilizes species coexistence at the community level by negative frequency-dependence.
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Affiliation(s)
- Masato Yamamichi
- Department of General Systems Studies, University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan.
| | - Daisuke Kyogoku
- Faculty of Agriculture, Ryukoku University, 1-5 Yokotani, Seta Oe-cho, Otsu, Shiga 520-2194, Japan
| | - Ryosuke Iritani
- RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS), Wako, Saitama 351-0198, Japan
| | - Kazuya Kobayashi
- Hokkaido Forest Research Station, Field Science Education and Research Center, Kyoto University, 553 Tawa, Shibecha-cho, Kawakami-gun, Hokkaido 088-2339, Japan
| | - Yuma Takahashi
- Department of Biology, Faculty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Kaori Tsurui-Sato
- Center for Strategic Research Project, University of the Ryukyus, Senbaru, Nishihara, Okinawa 903-0213, Japan
| | - Akira Yamawo
- Faculty of Agriculture and Life Science, Hirosaki University, 1 Bunkyo-cho, Hirosaki 036-8560, Japan
| | - Shigeto Dobata
- Laboratory of Insect Ecology, Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Kazuki Tsuji
- Department of Subtropical Agro-Environmental Sciences, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
| | - Michio Kondoh
- Graduate School of Life Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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35
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Yamamichi M, Koizumi I. Toxic males: Density‐dependent male mating harassment can explain geographic parthenogenesis. Ecol Res 2020. [DOI: 10.1111/1440-1703.12097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Masato Yamamichi
- Department of General Systems Studies University of Tokyo Tokyo Japan
| | - Ichiro Koizumi
- Department of General Systems Studies University of Tokyo Tokyo Japan
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36
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Łukasiewicz A. Juvenile diet quality and intensity of sexual conflict in the mite Sancassania berlesei. BMC Evol Biol 2020; 20:35. [PMID: 32164531 PMCID: PMC7069193 DOI: 10.1186/s12862-020-1599-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Accepted: 03/03/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Differing evolutionary interests of males and females may result in sexual conflict, whereby traits or behaviours that are beneficial for male reproductive success (e.g., traits related to male-male competition) are costly for females. Since sexual conflict may play an important role in areas such as speciation, population persistence or evolution of life history traits, understanding what factors modulate the intensity of sexual conflict is important. This study aims to examine juvenile diet quality as one of the underestimated ecological factors that may affect the intensity of sexual conflict via individual conditions. I used food manipulation during the development of the mite Sancassania berlesei to investigate the effects on male reproductive behaviour and competitiveness, male-induced harm to female fitness and female resistance to this harm. RESULTS Males that were exposed to low-quality food started mating later than the control males, and number of their mating attempts were lower compared to those of control males. Moreover, males from the low-quality diet treatment sired fewer offspring under competition than males from the control treatment. However, the fitness of females exposed to males reared on a poor diet did not differ from that of females mated with control males. Furthermore, female diet quality did not alter their resistance to male-induced harm. CONCLUSION Overall, diet quality manipulation affected male reproductive behaviour and mating success. However, I found no evidence that the intensity of sexual conflict in S. berlesei depends on male or female conditions. Investigating a broader range of environmental factors will provide a better understanding of sexual conflict dynamics and its feedback into associated evolutionary mechanisms.
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Affiliation(s)
- Aleksandra Łukasiewicz
- Evolutionary Biology Group, Faculty of Biology, Adam Mickiewicz University Poznań, ul. Uniwersytetu Poznańskiego 6, 61-614, Poznań, Poland.
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37
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De Lisle SP. Understanding the evolution of ecological sex differences: Integrating character displacement and the Darwin-Bateman paradigm. Evol Lett 2019. [DOI: 10.1002/evl3.134] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Stephen P. De Lisle
- Evolutionary Ecology Unit, Department of Biology; Lund University; Lund 22362 Sweden
- Current address: Department of Ecology & Evolutionary Biology, University of Connecticut; Storrs Connecticut 06269
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Alpedrinha J, R. Rodrigues L, Magalhães S, Abbott J. The virtues and limitations of exploring the eco‐evolutionary dynamics of sexually selected traits. OIKOS 2019. [DOI: 10.1111/oik.06573] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- João Alpedrinha
- cE3c: Centre for Ecology, Evolution, and Environmental Changes, Faculty of Sciences, Univ. of Lisbon Edifício C2 PT‐1749‐016 Lisboa Portugal
| | - Leonor R. Rodrigues
- cE3c: Centre for Ecology, Evolution, and Environmental Changes, Faculty of Sciences, Univ. of Lisbon Edifício C2 PT‐1749‐016 Lisboa Portugal
- Stockholm Univ Stockholm Sweden
| | - Sara Magalhães
- cE3c: Centre for Ecology, Evolution, and Environmental Changes, Faculty of Sciences, Univ. of Lisbon Edifício C2 PT‐1749‐016 Lisboa Portugal
| | - Jessica Abbott
- Biology Dept, Section for Evolutionary Ecology, Lund Univ Lund Sweden
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Fryxell DC, Weiler DE, Kinnison MT, Palkovacs EP. Eco-Evolutionary Dynamics of Sexual Dimorphism. Trends Ecol Evol 2019; 34:591-594. [DOI: 10.1016/j.tree.2019.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/02/2019] [Accepted: 04/09/2019] [Indexed: 10/26/2022]
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40
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Brunner FS, Deere JA, Egas M, Eizaguirre C, Raeymaekers JAM. The diversity of eco‐evolutionary dynamics: Comparing the feedbacks between ecology and evolution across scales. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13268] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Jacques A. Deere
- Institute for Biodiversity and Ecosystem DynamicsUniversity of Amsterdam Amsterdam The Netherlands
| | - Martijn Egas
- Institute for Biodiversity and Ecosystem DynamicsUniversity of Amsterdam Amsterdam The Netherlands
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