Behavioral Ecology最新文献_第7页

Intrinsic and extrinsic factors modulating vigilance and foraging in two gregarious foragers 调节两种群居觅食者警惕性和觅食的内在和外在因素

IF 2.4 3区环境科学与生态学

Behavioral Ecology Pub Date : 2024-01-02 DOI: 10.1093/beheco/arad114

Flavio Monti, Francesco Ferretti, Niccolò Fattorini

{"title":"Intrinsic and extrinsic factors modulating vigilance and foraging in two gregarious foragers","authors":"Flavio Monti, Francesco Ferretti, Niccolò Fattorini","doi":"10.1093/beheco/arad114","DOIUrl":"https://doi.org/10.1093/beheco/arad114","url":null,"abstract":"A continuous balance between costs and benefits dictates individual vigilance and foraging dynamics. In group-living animals, understanding the resulting trade-off is often complicated by multiple confounding effects. Vigilance and foraging levels may be the result of intrinsic (e.g., body size, trophic ecology, migratory phenology) and extrinsic (e.g., flock size, edge effect, group dynamism) factors, potentially differing between species, individuals, and contexts. We explored this idea by investigating intrinsic and extrinsic factors influencing vigilance and foraging behavior of two sympatric gregarious bird species that differ markedly in body size and foraging strategies (Greylag Goose Anser anser and Common Crane Grus grus), during their non-breeding period. Interspecific differences were detected in activity allocation and in response to group-related variables. For both species, time spent in vigilance decreased with increasing flock size and with increasing distance from the edge of the group. While cranes allocated the resulting time to foraging, the same did not occur in geese. Changes in individual position in the group (i.e., peripheral vs. central or vice versa) elicited a prompt behavioral change (i.e., vigilance vs. foraging or other activity). Temporal changes in activity budgets were reported for geese but not for cranes, with a decrease of vigilance and an increase of foraging as winter progressed. Results allowed to disentangle the role of multifactorial determinants of vigilance and foraging, in turn increasing our understanding of underlying forces driving the evolution of behavioral traits and of group-living.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"127 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139084452","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}

引用次数: 0

Condition-transfer maternal effects modulate inter-locus sexual conflict 条件转移母体效应调节病灶间性冲突

IF 2.4 3区环境科学与生态学

Behavioral Ecology Pub Date : 2024-01-02 DOI: 10.1093/beheco/arad108

Roberto García-Roa, Gonçalo S Faria, Daniel W A Noble, Pau Carazo

{"title":"Condition-transfer maternal effects modulate inter-locus sexual conflict","authors":"Roberto García-Roa, Gonçalo S Faria, Daniel W A Noble, Pau Carazo","doi":"10.1093/beheco/arad108","DOIUrl":"https://doi.org/10.1093/beheco/arad108","url":null,"abstract":"Strong sexual selection frequently favors males that increase their reproductive success by harming females, with potentially negative consequences for natural populations. Understanding what factors modulate conflict between the sexes is hence critical to understand both the evolution of male and female phenotypes and the viability of populations in the wild. Here, we model the evolution of male harm while incorporating male-induced maternal effects on offspring quality. We show that because male harm can induce condition-transfer maternal effects that reduce the quality of a harming male’s own offspring, maternal effects can partially align male and female evolutionary interests and significantly curb the evolution of male harm. These effects are independent of relatedness, the scale of competition, mating system, and whether male harm comes before (i.e., harassment) and/or during/after (i.e., traumatic inseminations or toxic ejaculates) mating and are particularly salient when maternal effects influence offspring ability to inflict (sons) or resist (daughters) harm. Our results underscore the potential importance of considering maternal effects to unravel the evolution of sexual conflict.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"8 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139084558","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}

引用次数: 0

Sex ratio affects sexual selection against mutant alleles in a locus-specific way. 性别比例以特定位点的方式影响针对突变等位基因的性选择。

IF 2.5 3区环境科学与生态学

Behavioral Ecology Pub Date : 2023-12-29 eCollection Date: 2024-01-01 DOI: 10.1093/beheco/arad110

Sakshi Sharda, Brian Hollis, Tadeusz J Kawecki

{"title":"Sex ratio affects sexual selection against mutant alleles in a locus-specific way.","authors":"Sakshi Sharda, Brian Hollis, Tadeusz J Kawecki","doi":"10.1093/beheco/arad110","DOIUrl":"10.1093/beheco/arad110","url":null,"abstract":"Higher male:female operational sex ratio (OSR) is often assumed to lead to stronger sexual selection on males. Yet, this premise has been directly tested by very few studies, with mixed outcomes. We investigated how OSR affects the strength of sexual selection against two deleterious alleles, a natural ebony mutant and a transgenic GFP insertion, in Drosophila melanogaster. To this end, we estimated the relative paternity share of homozygous mutant males competing against wild-type males under different OSRs (1:2, 1:1, 2:1). We also manipulated the mating pool density (18, 36, or 54 individuals) and assessed paternity over three consecutive days, during which the nature of sexual interaction changed. The strength of sexual selection against the ebony mutant increased with OSR, became weaker after the first day, and was little affected by density. In contrast, sexual selection against the GFP transgene was markedly affected by density: at the highest density, it increased with OSR, but at lower densities, it was strongest at 1:1 OSR, remaining strong throughout the experiment. Thus, while OSR can strongly affect the strength of sexual selection against \"bad genes,\" it does not necessarily increase monotonically with male:female OSR. Furthermore, the pattern of relationship between OSR and the strength of sexual selection can be locus-specific, likely reflecting the specific phenotypic effects of the mutation.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"35 1","pages":"arad110"},"PeriodicalIF":2.5,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10756055/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139072549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flexible learning in complex worlds. 复杂世界中的灵活学习。

IF 2.5 3区环境科学与生态学

Behavioral Ecology Pub Date : 2023-12-29 eCollection Date: 2024-01-01 DOI: 10.1093/beheco/arad109

Olof Leimar, Andrés E Quiñones, Redouan Bshary

{"title":"Flexible learning in complex worlds.","authors":"Olof Leimar, Andrés E Quiñones, Redouan Bshary","doi":"10.1093/beheco/arad109","DOIUrl":"10.1093/beheco/arad109","url":null,"abstract":"Cognitive flexibility can enhance the ability to adjust to changing environments. Here, we use learning simulations to investigate the possible advantages of flexible learning in volatile (changing) environments. We compare two established learning mechanisms, one with constant learning rates and one with rates that adjust to volatility. We study an ecologically relevant case of volatility, based on observations of developing cleaner fish Labroides dimidiatus that experience a transition from a simpler to a more complex foraging environment. There are other similar transitions in nature, such as migrating to a new and different habitat. We also examine two traditional approaches to volatile environments in experimental psychology and behavioral ecology: reversal learning, and learning set formation (consisting of a sequence of different discrimination tasks). These provide experimental measures of cognitive flexibility. Concerning transitions to a complex world, we show that both constant and flexible learning rates perform well, losing only a small proportion of available rewards in the period after a transition, but flexible rates perform better than constant rates. For reversal learning, flexible rates improve the performance with each successive reversal because of increasing learning rates, but this does not happen for constant rates. For learning set formation, we find no improvement in performance with successive shifts to new stimuli to discriminate for either flexible or constant learning rates. Flexible learning rates might thus explain increasing performance in reversal learning but not in learning set formation, and this can shed light on the nature of cognitive flexibility in a given system.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"35 1","pages":"arad109"},"PeriodicalIF":2.5,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10756056/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139073336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploration and social environment affect inbreeding avoidance in a small mammal 探索和社会环境影响一种小型哺乳动物避免近亲繁殖的能力

IF 2.4 3区环境科学与生态学

Behavioral Ecology Pub Date : 2023-12-26 DOI: 10.1093/beheco/arad107

Katherine Vandal, Dany Garant, Patrick Bergeron, Denis Réale

{"title":"Exploration and social environment affect inbreeding avoidance in a small mammal","authors":"Katherine Vandal, Dany Garant, Patrick Bergeron, Denis Réale","doi":"10.1093/beheco/arad107","DOIUrl":"https://doi.org/10.1093/beheco/arad107","url":null,"abstract":"Individual exploration types are based on the cognitive speed-accuracy trade-off, which suggests that a higher speed of information acquisition is done by sacrificing information quality. In a mating context, fast exploration could thus increase the probability of finding mates at the cost of mating with kin or suboptimal partners. We tested this hypothesis by studying male mate choice patterns in a species with a scramble competition mating system. We used genotyping, localization by radio-collar, trapping, and repeated exploration measures from a long-term study on wild Eastern chipmunks (Tamias striatus). We predicted that, according to the speed-accuracy trade-off hypothesis, slower-thorough explorers should be choosier than faster-superficial ones, and thus avoid inbreeding. We found that slower males reproduced more often with less related females, but only on one site where variance in relatedness and female density were high. Males showed no preference for their mates’ exploration type. Our results suggest that superficial exploration decreases male choosiness and increases the risk of inbreeding, but only under decreased mate search costs due to high variance in relatedness among mates (at high density). Our findings reveal exploration-related, among-individual variance in inbreeding, highlighting the complexity of mate choice, and showing that many aspects of an individual’s life contribute to animal decision-making.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"6 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139056891","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}

引用次数: 0

Correction to: Selective disappearance does not underlie age-related changes in trait repeatability in red squirrels 更正：选择性消失不是红松鼠性状重复性与年龄相关变化的基础

IF 2.4 3区环境科学与生态学

Behavioral Ecology Pub Date : 2023-12-26 DOI: 10.1093/beheco/arad115

引用次数: 0

Machine learning reveals singing rhythms of male Pacific field crickets are clock controlled. 机器学习发现雄性太平洋田蟋的歌唱节奏受时钟控制。

IF 2.5 3区环境科学与生态学

Behavioral Ecology Pub Date : 2023-12-23 eCollection Date: 2024-01-01 DOI: 10.1093/beheco/arad098

Mary L Westwood, Quentin Geissmann, Aidan J O'Donnell, Jack Rayner, Will Schneider, Marlene Zuk, Nathan W Bailey, Sarah E Reece

{"title":"Machine learning reveals singing rhythms of male Pacific field crickets are clock controlled.","authors":"Mary L Westwood, Quentin Geissmann, Aidan J O'Donnell, Jack Rayner, Will Schneider, Marlene Zuk, Nathan W Bailey, Sarah E Reece","doi":"10.1093/beheco/arad098","DOIUrl":"10.1093/beheco/arad098","url":null,"abstract":"Circadian rhythms are ubiquitous in nature and endogenous circadian clocks drive the daily expression of many fitness-related behaviors. However, little is known about whether such traits are targets of selection imposed by natural enemies. In Hawaiian populations of the nocturnally active Pacific field cricket (Teleogryllus oceanicus), males sing to attract mates, yet sexually selected singing rhythms are also subject to natural selection from the acoustically orienting and deadly parasitoid fly, Ormia ochracea. Here, we use T. oceanicus to test whether singing rhythms are endogenous and scheduled by circadian clocks, making them possible targets of selection imposed by flies. We also develop a novel audio-to-circadian analysis pipeline, capable of extracting useful parameters from which to train machine learning algorithms and process large quantities of audio data. Singing rhythms fulfilled all criteria for endogenous circadian clock control, including being driven by photoschedule, self-sustained periodicity of approximately 24 h, and being robust to variation in temperature. Furthermore, singing rhythms varied across individuals, which might suggest genetic variation on which natural and sexual selection pressures can act. Sexual signals and ornaments are well-known targets of selection by natural enemies, but our findings indicate that the circadian timing of those traits' expression may also determine fitness.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"35 1","pages":"arad098"},"PeriodicalIF":2.5,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10748470/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139032142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Personality affects female mate choice: frogs displaying more consistent bold behaviors are choosier 性格影响雌蛙的择偶：表现出更一致的大胆行为的青蛙更容易择偶

IF 2.4 3区环境科学与生态学

Behavioral Ecology Pub Date : 2023-12-23 DOI: 10.1093/beheco/arad101

Olivia S Feagles, Gerlinde Höbel

{"title":"Personality affects female mate choice: frogs displaying more consistent bold behaviors are choosier","authors":"Olivia S Feagles, Gerlinde Höbel","doi":"10.1093/beheco/arad101","DOIUrl":"https://doi.org/10.1093/beheco/arad101","url":null,"abstract":"Mate choice is an important cause of natural and sexual selection and drives the evolution and elaboration of male ornaments. Yet mate choice decisions are often neither consistent nor uniform, and a range of factors have been identified to influence variation between and within individuals. A potential source of variation influencing preferences and/or choosiness is animal personality, that is, repeatable among-individual differences in behaviors. Not only may individuals differ in average personality phenotype but also vary in how consistently they display said personality. Distinguishing between personality and consistency is important because both aspects are potentially naturally selected traits that may yet influence how sexually selected ornaments are evaluated. Here, we use a predator evasion assay to test whether there is variation in boldness among female gray treefrogs (Hyla versicolor), and then examine whether personality traits (spectrum of shy to bold) are correlated with choosiness for longer duration calls. We document substantial and repeatable between-individual variation in boldness, suggesting the presence of animal personality. Results also reveal that the consistency with which females expressed boldness is independent from average personality phenotype and that it is correlated with choosiness: more consistently bold females were choosier.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"1 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139056897","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}

引用次数: 0

Peregrine falcons shift mean and variance in provisioning in response to increasing brood demand 游隼因育雏需求增加而改变供给的平均值和方差

IF 2.4 3区环境科学与生态学

Behavioral Ecology Pub Date : 2023-12-22 DOI: 10.1093/beheco/arad103

Rebekah A McKinnon, Kevin Hawkshaw, Erik Hedlin, Shinichi Nakagawa, Kimberley J. Mathot

{"title":"Peregrine falcons shift mean and variance in provisioning in response to increasing brood demand","authors":"Rebekah A McKinnon, Kevin Hawkshaw, Erik Hedlin, Shinichi Nakagawa, Kimberley J. Mathot","doi":"10.1093/beheco/arad103","DOIUrl":"https://doi.org/10.1093/beheco/arad103","url":null,"abstract":"Abstract The hierarchical model of provisioning posits that parents employ a strategic, sequential use of three provisioning tactics as offspring demand increases (e.g., due to increasing brood size and age). Namely, increasing delivery rate (reducing intervals between provisioning visits), expanding provisioned diet breadth, and adopting variance-sensitive provisioning. We evaluated this model in an Arctic breeding population of Peregrine falcons (Falco peregrinus tundrius) by analyzing changes in inter-visit-intervals (IVIs) and residual variance in IVIs across 7 study years. Data were collected using motion-sensitive nest camera images and analyzed using Bayesian mixed effect models. We found strong support for a decrease in IVIs (i.e., increase in delivery rates) between provisioning visits and an increase in residual variance in IVIs with increasing nestling age, consistent with the notion that peregrines shift to variance-prone provisioning strategies with increasing nestling demand. However, support for predictions made based on the hierarchical model of tactics for coping with increased brood demand was equivocal as we did not find evidence in support of expected covariances between random effects (i.e., between IVI to an average sized brood (intercept), change in IVI with brood demand (slope) or variance in IVI). Overall, our study provides important biological insights into how parents cope with increased brood demand.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"79 21","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138945470","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}

引用次数: 0

Geographic variation in individual face learning based on plasticity rather than local genetic adaptation in Polistes wasps 基于可塑性而非局部遗传适应性的 Polistes 黄蜂个体面部学习的地域差异

IF 2.4 3区环境科学与生态学

Behavioral Ecology Pub Date : 2023-12-22 DOI: 10.1093/beheco/arad100

Meagan Simons, Delbert A Green, E. Tibbetts

{"title":"Geographic variation in individual face learning based on plasticity rather than local genetic adaptation in Polistes wasps","authors":"Meagan Simons, Delbert A Green, E. Tibbetts","doi":"10.1093/beheco/arad100","DOIUrl":"https://doi.org/10.1093/beheco/arad100","url":null,"abstract":"\u0000 Signals and receiver responses often vary across a species’ geographic range. Effective communication requires a match between signal and receiver response, so there is much interest in the developmental mechanisms that maintain this link. Two potential mechanisms are genetic covariance between signal and receiver response and plasticity where individuals adjust their phenotype based on their partner’s phenotype. Here, we test how plasticity contributes to geographic variation in individual face recognition in Polistes fuscatus wasps. Previous work has shown that P. fuscatus from Michigan, USA (MI) have variable facial patterns used for individual recognition, while P. fuscatus from central Pennsylvania, USA (PA) lack variable facial patterns and are unable to learn individual conspecifics. We experimentally altered rearing environment, so wasps were either reared with their own population or in a common garden with wasps from both populations. Then, we tested the wasps’ capacity to learn and remember individual conspecific faces. Consistent with previous work, MI wasps reared with MI wasps were adept at learning conspecific faces, while PA wasps reared with PA wasps were unable to learn conspecific faces. However, MI and PA wasps reared in a common garden developed similar, intermediate capacity for individual face learning. These results indicate that individual face learning in Polistes wasps is highly plastic and responsive to the social environment. Plasticity in receiver responses may be a common mechanism mediating geographic differences in non-sexual signaling systems and may play a role in maintaining links between signals and receiver responses in geographically variable communication systems.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"77 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138945310","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}

引用次数: 0