{"title":"Habitat and local climate influence the activity and abundance of Baron’s Mantella frog (Mantella baroni)","authors":"Tantely Rasoarimanana, Devin Edmonds, Olivier Marquis","doi":"10.1007/s10682-023-10272-2","DOIUrl":"https://doi.org/10.1007/s10682-023-10272-2","url":null,"abstract":"","PeriodicalId":55158,"journal":{"name":"Evolutionary Ecology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135729887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-17DOI: 10.1007/s10682-023-10263-3
Laure A. Olivier, Andrew D. Higginson
Abstract Reproductive skew refers to the unequal partitioning of reproduction by same-sex members of a social group. The concession, restraint and tug-of-war skew models attempt to predict which social and ecological factors influence skew, whilst assuming different power dynamics and making contrasting predictions. The factors underpinning within-species variation in skew remain unclear, despite decades of research. Individuals vary in both the benefit of leaving the group to breed (outside option) and in the contribution they make to group productivity if they stay. Variation is likely among several aspects of individual quality, so that individuals and species may show different associations between the subordinate's outside option and group productivity. Yet, no existing skew models allow for variation in this association, here named the quality-productivity coefficient (QPC). If high subordinate quality is associated with being a good helper, for instance if both help and quality improve with age, the QPC would be positive. If, instead, there is a trade-off or other contrast between breeding ability and helping effect, then the QPC will be negative. Here, we incorporate the QPC and derive new predictions for the concession, restraint and tug-of-war models, that sometimes changed their predictions. We review the empirical tests of the association of skew with relatedness, dominant’s competitive advantage, group productivity and subordinate’s outside option. From 16 studies available to calculate an effect size, relatedness correlated positively with skew; yet overall most of 45 studies reported no association. The association of skew with the outside option was negative or null, fitting the restraint and tug-of-war models. The mostly non-significant effect of group productivity supported the three models. Our review highlights future fruitful avenues for the study of cooperative breeding, especially more work to assess the association between subordinate’s outside option and subordinate’s effect on group productivity.
{"title":"Tests of reproductive skew theory: a review and prospectus","authors":"Laure A. Olivier, Andrew D. Higginson","doi":"10.1007/s10682-023-10263-3","DOIUrl":"https://doi.org/10.1007/s10682-023-10263-3","url":null,"abstract":"Abstract Reproductive skew refers to the unequal partitioning of reproduction by same-sex members of a social group. The concession, restraint and tug-of-war skew models attempt to predict which social and ecological factors influence skew, whilst assuming different power dynamics and making contrasting predictions. The factors underpinning within-species variation in skew remain unclear, despite decades of research. Individuals vary in both the benefit of leaving the group to breed (outside option) and in the contribution they make to group productivity if they stay. Variation is likely among several aspects of individual quality, so that individuals and species may show different associations between the subordinate's outside option and group productivity. Yet, no existing skew models allow for variation in this association, here named the quality-productivity coefficient (QPC). If high subordinate quality is associated with being a good helper, for instance if both help and quality improve with age, the QPC would be positive. If, instead, there is a trade-off or other contrast between breeding ability and helping effect, then the QPC will be negative. Here, we incorporate the QPC and derive new predictions for the concession, restraint and tug-of-war models, that sometimes changed their predictions. We review the empirical tests of the association of skew with relatedness, dominant’s competitive advantage, group productivity and subordinate’s outside option. From 16 studies available to calculate an effect size, relatedness correlated positively with skew; yet overall most of 45 studies reported no association. The association of skew with the outside option was negative or null, fitting the restraint and tug-of-war models. The mostly non-significant effect of group productivity supported the three models. Our review highlights future fruitful avenues for the study of cooperative breeding, especially more work to assess the association between subordinate’s outside option and subordinate’s effect on group productivity.","PeriodicalId":55158,"journal":{"name":"Evolutionary Ecology","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135996090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-17DOI: 10.1007/s10682-023-10268-y
Lucía V. Sommaro, Juan J. Martínez
{"title":"Temporal stability in color patterns and body size variation in a six-year monitored population of the aposematic toad (Melanophryniscus rubriventris)","authors":"Lucía V. Sommaro, Juan J. Martínez","doi":"10.1007/s10682-023-10268-y","DOIUrl":"https://doi.org/10.1007/s10682-023-10268-y","url":null,"abstract":"","PeriodicalId":55158,"journal":{"name":"Evolutionary Ecology","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135992751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-13DOI: 10.1007/s10682-023-10274-0
Lauriane Bégué, Noëlle Tschirren, Mélissa Peignier, Birgit Szabo, Eva Ringler
Abstract Animals often show consistency in their behavioural repertoire across time and/or contexts that differs from other individuals of the same population, i.e. animal personality. We currently have quite an incomplete understanding of the factors that lead to behavioural traits remaining stable – or becoming decoupled – over an animal’s lifetime. In this study, we investigated the role of metamorphosis in the development of animal personality in a Neotropical poison frog, a species that undergoes drastic morphological and ecological changes during its development. We used lab-reared individuals of the brilliant-thighed poison frog Allobates femoralis to assess if consistent individual differences are already present at the tadpole stage, and if these differences are maintained throughout metamorphosis. We found evidence for two personality traits, exploration and boldness, already present in A. femoralis tadpoles. Despite the drastic changes in morphology, physiology, and habitat in the transition from tadpoles to metamorphs, personality traits persisted throughout metamorphosis, suggesting a physiological and/or genetic basis for the measured behavioural traits. We also found that exploration and boldness related behaviours were correlated with growth speed. Very bold and explorative individuals took fewer days until metamorphosis compared to very shy and non-explorative ones, which is in line with the concept of a Pace-of-Life Syndrome. These findings provide important insights into the proximate mechanisms that generate personality in species with complex life cycles.
{"title":"Behavioural consistency across metamorphosis in a neotropical poison frog","authors":"Lauriane Bégué, Noëlle Tschirren, Mélissa Peignier, Birgit Szabo, Eva Ringler","doi":"10.1007/s10682-023-10274-0","DOIUrl":"https://doi.org/10.1007/s10682-023-10274-0","url":null,"abstract":"Abstract Animals often show consistency in their behavioural repertoire across time and/or contexts that differs from other individuals of the same population, i.e. animal personality. We currently have quite an incomplete understanding of the factors that lead to behavioural traits remaining stable – or becoming decoupled – over an animal’s lifetime. In this study, we investigated the role of metamorphosis in the development of animal personality in a Neotropical poison frog, a species that undergoes drastic morphological and ecological changes during its development. We used lab-reared individuals of the brilliant-thighed poison frog Allobates femoralis to assess if consistent individual differences are already present at the tadpole stage, and if these differences are maintained throughout metamorphosis. We found evidence for two personality traits, exploration and boldness, already present in A. femoralis tadpoles. Despite the drastic changes in morphology, physiology, and habitat in the transition from tadpoles to metamorphs, personality traits persisted throughout metamorphosis, suggesting a physiological and/or genetic basis for the measured behavioural traits. We also found that exploration and boldness related behaviours were correlated with growth speed. Very bold and explorative individuals took fewer days until metamorphosis compared to very shy and non-explorative ones, which is in line with the concept of a Pace-of-Life Syndrome. These findings provide important insights into the proximate mechanisms that generate personality in species with complex life cycles.","PeriodicalId":55158,"journal":{"name":"Evolutionary Ecology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135854886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-13DOI: 10.1007/s10682-023-10267-z
Jennifer L. Kelley, Anna-Lee Jessop, Laura A. Kelley, Jolyon Troscianko
Abstract Shadows that are produced across the surface of an object (self-shadows) are potentially an important source of information for visual systems. Animal patterns may exploit this principle for camouflage, using pictorial cues to produce false depth information that manipulates the viewer’s detection/recognition processes. However, pictorial cues could also facilitate camouflage by matching the contrast (e.g. due to shadows) of 3D backgrounds. Aside from studies of countershading (patterning that may conceal depth information), the role of self-shadows in camouflage patterns remains unclear. Here we investigated whether pictorial cues (self-shadows) increase the survival probability of moth-like prey presented to free-living wild bird predators relative to targets without these cues. We manipulated the presence of self-shadows by adjusting the illumination conditions to produce patterned targets under directional lighting (lit from above or from below; self-shadows present) or diffuse lighting (no self-shadows). We used non-patterned targets (uniform colour) as controls. We manipulated the direction of illumination because it has been linked with depth perception in birds; objects lit from above may appear convex while those lit from below can appear concave. As shadows influence contrast, which also determines detectability, we photographed the targets in situ over the observation period, allowing us to evaluate the effect of visual metrics on survival. We found some evidence that patterned targets without self-shadows had a lower probability of survival than patterned targets with self-shadows and targets with uniform colour. Surprisingly, none of the visual metrics explained variation in survival probability. However, predators increased their foraging efficiency over time, suggesting that predator learning may have overridden the benefits afforded by camouflaging coloration.
{"title":"The role of pictorial cues and contrast for camouflage","authors":"Jennifer L. Kelley, Anna-Lee Jessop, Laura A. Kelley, Jolyon Troscianko","doi":"10.1007/s10682-023-10267-z","DOIUrl":"https://doi.org/10.1007/s10682-023-10267-z","url":null,"abstract":"Abstract Shadows that are produced across the surface of an object (self-shadows) are potentially an important source of information for visual systems. Animal patterns may exploit this principle for camouflage, using pictorial cues to produce false depth information that manipulates the viewer’s detection/recognition processes. However, pictorial cues could also facilitate camouflage by matching the contrast (e.g. due to shadows) of 3D backgrounds. Aside from studies of countershading (patterning that may conceal depth information), the role of self-shadows in camouflage patterns remains unclear. Here we investigated whether pictorial cues (self-shadows) increase the survival probability of moth-like prey presented to free-living wild bird predators relative to targets without these cues. We manipulated the presence of self-shadows by adjusting the illumination conditions to produce patterned targets under directional lighting (lit from above or from below; self-shadows present) or diffuse lighting (no self-shadows). We used non-patterned targets (uniform colour) as controls. We manipulated the direction of illumination because it has been linked with depth perception in birds; objects lit from above may appear convex while those lit from below can appear concave. As shadows influence contrast, which also determines detectability, we photographed the targets in situ over the observation period, allowing us to evaluate the effect of visual metrics on survival. We found some evidence that patterned targets without self-shadows had a lower probability of survival than patterned targets with self-shadows and targets with uniform colour. Surprisingly, none of the visual metrics explained variation in survival probability. However, predators increased their foraging efficiency over time, suggesting that predator learning may have overridden the benefits afforded by camouflaging coloration.","PeriodicalId":55158,"journal":{"name":"Evolutionary Ecology","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135854081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-10DOI: 10.1007/s10682-023-10265-1
Olivia L. Brooks, Evan N. Talbott-Swain, Matthew B. Dugas
{"title":"Food availability in the nursery affects parental food allocation but not tadpole begging performance in a frog with facultative parental care","authors":"Olivia L. Brooks, Evan N. Talbott-Swain, Matthew B. Dugas","doi":"10.1007/s10682-023-10265-1","DOIUrl":"https://doi.org/10.1007/s10682-023-10265-1","url":null,"abstract":"","PeriodicalId":55158,"journal":{"name":"Evolutionary Ecology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136295812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-05DOI: 10.1007/s10682-023-10264-2
Franz Weyerer, Avril Weinbach, Christiane Zarfl, Korinna T. Allhoff
Abstract The interplay between ecological and evolutionary dynamics can create feedback that reinforces external disturbances and potentially threatens species’ coexistence. For example, plants might invest less into attracting insect pollinators (decreased flower or nectar production) and more into independence (increased selfing or vegetative reproduction) when faced with pollinator decline. This adaptive response saves plant resources at the cost of further threatening the pollinator population. We ask under which conditions such self-reinforcing feedback occurs in two-species mutualistic systems when considering one-sided population decline and whether it can be counteracted by self-dampening feedback if co-evolution of both interaction partners is considered. Based on a mathematical model and in line with previous studies, we find that the described pattern of accelerated population decline occurs for a wide range of parameter values if a concave allocation trade-off between independent growth and interaction investment is assumed. The undisturbed population typically disinvests first, which then forces the declining population to also disinvest, in favour of other energy sources. However, a decelerated population decline can occur if the adaptation of the undisturbed partner is relatively slow compared to environmental decay, reducing the speed of its disinvestment, or if the initial investment into the interaction was very high. Our results suggest that if actions are taken to save endangered populations, not only the evolution of the target species but also of their interaction partner, as well as the interaction between them should be considered.
{"title":"Eco-evolutionary dynamics in two-species mutualistic systems: one-sided population decline triggers joint interaction disinvestment","authors":"Franz Weyerer, Avril Weinbach, Christiane Zarfl, Korinna T. Allhoff","doi":"10.1007/s10682-023-10264-2","DOIUrl":"https://doi.org/10.1007/s10682-023-10264-2","url":null,"abstract":"Abstract The interplay between ecological and evolutionary dynamics can create feedback that reinforces external disturbances and potentially threatens species’ coexistence. For example, plants might invest less into attracting insect pollinators (decreased flower or nectar production) and more into independence (increased selfing or vegetative reproduction) when faced with pollinator decline. This adaptive response saves plant resources at the cost of further threatening the pollinator population. We ask under which conditions such self-reinforcing feedback occurs in two-species mutualistic systems when considering one-sided population decline and whether it can be counteracted by self-dampening feedback if co-evolution of both interaction partners is considered. Based on a mathematical model and in line with previous studies, we find that the described pattern of accelerated population decline occurs for a wide range of parameter values if a concave allocation trade-off between independent growth and interaction investment is assumed. The undisturbed population typically disinvests first, which then forces the declining population to also disinvest, in favour of other energy sources. However, a decelerated population decline can occur if the adaptation of the undisturbed partner is relatively slow compared to environmental decay, reducing the speed of its disinvestment, or if the initial investment into the interaction was very high. Our results suggest that if actions are taken to save endangered populations, not only the evolution of the target species but also of their interaction partner, as well as the interaction between them should be considered.","PeriodicalId":55158,"journal":{"name":"Evolutionary Ecology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134976084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-27DOI: 10.1007/s10682-023-10258-0
Jeffrey L. Coleman, David C. Cannatella
{"title":"The molecular basis and evolution of toxin resistance in poison frogs","authors":"Jeffrey L. Coleman, David C. Cannatella","doi":"10.1007/s10682-023-10258-0","DOIUrl":"https://doi.org/10.1007/s10682-023-10258-0","url":null,"abstract":"","PeriodicalId":55158,"journal":{"name":"Evolutionary Ecology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135537202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-27DOI: 10.1007/s10682-023-10260-6
Katherine R. Waters, Matthew B. Dugas, Taran Grant, Ralph A. Saporito
{"title":"The ability to sequester the alkaloid epibatidine is widespread among dendrobatid poison frogs","authors":"Katherine R. Waters, Matthew B. Dugas, Taran Grant, Ralph A. Saporito","doi":"10.1007/s10682-023-10260-6","DOIUrl":"https://doi.org/10.1007/s10682-023-10260-6","url":null,"abstract":"","PeriodicalId":55158,"journal":{"name":"Evolutionary Ecology","volume":"101-102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135537201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-23DOI: 10.1007/s10682-023-10262-4
Jeremy Klank, Francesca Protti-Sánchez, Paula Mora-Rojas, Hannah M. Rowland, Jennifer L. Stynoski
{"title":"How to move and when to escape: quantifying intraspecific exploratory and anti-predator behavior in an aposematic poison frog","authors":"Jeremy Klank, Francesca Protti-Sánchez, Paula Mora-Rojas, Hannah M. Rowland, Jennifer L. Stynoski","doi":"10.1007/s10682-023-10262-4","DOIUrl":"https://doi.org/10.1007/s10682-023-10262-4","url":null,"abstract":"","PeriodicalId":55158,"journal":{"name":"Evolutionary Ecology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135957813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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