Behavioral Ecology最新文献_第3页

Too hot to reason? Experimental heatwaves affect cognitive traits in male guppies. 热到无法推理？实验热浪影响雄性孔雀鱼的认知特征。

IF 2.5 3区环境科学与生态学

Behavioral Ecology Pub Date : 2025-05-30 eCollection Date: 2025-07-01 DOI: 10.1093/beheco/araf061

Merel C Breedveld, Luna Dudine, Samuele Padovan, Marta Giacomazzo, Ranieri Verin, Clelia Gasparini

{"title":"Too hot to reason? Experimental heatwaves affect cognitive traits in male guppies.","authors":"Merel C Breedveld, Luna Dudine, Samuele Padovan, Marta Giacomazzo, Ranieri Verin, Clelia Gasparini","doi":"10.1093/beheco/araf061","DOIUrl":"10.1093/beheco/araf061","url":null,"abstract":"Heatwaves, increasingly common and intense due to climate change, are increasing mortality rates and disrupting vital functions. Recent research has begun exploring their impact on cognition. Since cognition underlies key fitness-related behaviors, such as foraging, predator avoidance, and mate choice, understanding the cognitive costs of heatwaves is crucial. Here, we investigate whether heatwaves impact cognition using male guppies (Poecilia reticulata) as a vertebrate model. We focused on males due to their behavioral consistency in cognitive tests and because they were previously observed to alter sexual behavior after a heatwave. Males were exposed to a 5-d experimental heatwave (32 °C) or control treatment (26 °C). The chosen temperatures are ecologically relevant for the species, fall within their natural habitat's thermal range, and reflect extreme climatic events that are projected to become even more frequent and severe under future climate scenarios. Following treatment, all fish were tested at 26 °C for spatial memory and learning, mate choice, inhibitory control, and anti-predator responses. We also conducted histopathological evaluations of brain tissue to investigate potential central nervous system lesions. The results show that heatwave exposure declined maze solving efficiency, affected mate choice-related cognitive capacities, and led to suboptimal anti-predatory responses. No effects were observed on inhibitory control or habituation. Importantly, heatwave exposure induced morphological alterations in the central nervous system, potentially explaining the observed changes in cognitive performance. Our study provides a comprehensive evaluation of heatwave impacts on cognitive function, highlighting the need of investigating their subtle yet significant effects to fully understand how heatwaves influence fitness beyond survival.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"36 4","pages":"araf061"},"PeriodicalIF":2.5,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12203089/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144526342","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

Parental control: ecology drives plasticity in parental response to offspring signals. 亲代控制：生态驱动亲代对后代信号反应的可塑性。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2025-05-25 eCollection Date: 2025-05-22 DOI: 10.1093/beheco/araf058

{"title":"Parental control: ecology drives plasticity in parental response to offspring signals.","authors":"","doi":"10.1093/beheco/araf058","DOIUrl":"10.1093/beheco/araf058","url":null,"abstract":"Birds differ in their parent-offspring interactions, and these differences may be caused by environmental variation. When food is plentiful, the chicks that are begging the most are fed the most. When food is scarce, parents instead feed the largest offspring. This change could due to offspring adjusting their behaviour, or to confounding factors not directly related to current food availability, such as brood size. Alternatively, it could equally be due to parents responding to signals differently based on their experience of food availability in the recent past, for example, over the past weeks. We tested between these competing explanations experimentally, by manipulating food availability in a population of wild great tits, Parus major. We then standardised food availability, and manipulated offspring size and behaviour by creating mixed cross-fostered broods just before filming. This isolated the effect of parental strategies while holding food availability, offspring begging and size constant across treatments, but with sufficient variation within broods to generate usable information for parents. We found that when parents had experienced plentiful, supplemented food prior to filming, they were: (1) more likely to preferentially feed the chicks that were begging the most; and (2) less likely to preferentially feed larger chicks. Chicks, on the other hand, did not differ in their behavior in relation to the environmental conditions they had experienced previously, but instead begged in relation to their immediate feeding history and their nestmates' begging intensity. Overall, our results suggest that parents have more control over food distribution than suggested by scramble competition models, and that they can flexibly adjust how they respond to both offspring signals and cues of offspring quality in response to food availability. Consequently, different signalling systems are favoured depending on environmental conditions and predictability and parental plasticity.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"36 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7618113/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145063472","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

Cognitive tasks could be biased towards generalists: a lesson from wild non-eusocial bees. 认知任务可能偏向于通才：这是来自野生非群居蜜蜂的教训。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2025-05-25 eCollection Date: 2025-07-01 DOI: 10.1093/beheco/araf054

Tovah Kashetsky, Nigel E Raine, Jessica R K Forrest

{"title":"Cognitive tasks could be biased towards generalists: a lesson from wild non-eusocial bees.","authors":"Tovah Kashetsky, Nigel E Raine, Jessica R K Forrest","doi":"10.1093/beheco/araf054","DOIUrl":"10.1093/beheco/araf054","url":null,"abstract":"Ecological niches are closely intertwined with cognition in many animal lineages. For example, diet breadth is linked with performance on tasks measuring learning and exploration in several vertebrates, with generalists often exhibiting faster learning and more exploratory behavior than specialists. We compared associative learning performance and exploratory tendencies between dietary specialist and generalist bee (Anthophila) species using a closed-environment task with free-moving bees called the free-moving proboscis-extension response (FMPER). We found lower participation rates than expected, especially among specialist species, which hindered our ability to answer our primary question. Because participation rates of specialist species were so low, we combined our data with another published dataset that reported results from the same learning task but for several different bee species (again including specialists and generalists) to investigate the relation of diet breadth with associative learning and exploration across a broader species assemblage. Phylogeny-informed generalized linear mixed models indicate that neither specialists nor generalists increased accuracy throughout the task, although bees of both diet breadths became faster at drinking from the rewarding strip. Bees decreased their drinking latency-a measure of exploration-throughout the experiment, with no effect of diet breadth. However, specialists became less likely to participate over the course of the task compared to generalists. Our results suggest that specialist and generalist bees have experienced similar selection for associative learning abilities, and that specialists are hesitant to continue interacting with novel stimuli. Our study highlights the importance of developing cognitive tasks that measure abilities equally across the full range of life history traits.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"36 4","pages":"araf054"},"PeriodicalIF":2.2,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12302503/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144727165","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

Antagonistic effects of predator color morph abundance and saliency on prey anti-predator responses. 捕食者颜色、形态、丰度和显著性对捕食者反捕食反应的拮抗作用。

IF 2.5 3区环境科学与生态学

Behavioral Ecology Pub Date : 2025-05-24 eCollection Date: 2025-07-01 DOI: 10.1093/beheco/araf059

S R Matchette, J Schneider, C Drerup, S Winters, A N Radford, J E Herbert-Read

{"title":"Antagonistic effects of predator color morph abundance and saliency on prey anti-predator responses.","authors":"S R Matchette, J Schneider, C Drerup, S Winters, A N Radford, J E Herbert-Read","doi":"10.1093/beheco/araf059","DOIUrl":"10.1093/beheco/araf059","url":null,"abstract":"The color polymorphisms of prey species are often maintained by apostatic selection. In particular, rarer morphs are thought to be at an advantage because attentional constraints result in predators forming search images, which are based on the most abundant prey morph. Predatory species can also be polymorphic and predator morph abundance may be maintained by a similar mechanism, given prey are also likely to form search images to ensure fast and appropriate anti-predatory responses. Alternatively, given that the predator polymorphism may be driven by other ecological factors (eg niche divergence or sexual selection), prey may instead be highly sensitive to the relative visual saliency of different predatory morphs, which in turn could impact predator morph abundance. Here, by combining empirical observations with a field experiment, we assessed how the relative abundance and saliency of different color morphs of the predatory trumpetfish (Aulostomus maculatus) influenced the behavioral responses of a typical prey species, the bicolor damselfish (Stegastes partitus). We found that more abundant predator color morphs were less salient in damselfish vision (relative to the background) than less abundant color morphs. By presenting 3D models of each morph to damselfish, we found that they did not respond differently to more abundant or more salient morphs. Our results suggest that both the relative abundance and saliency of predator morphs could contribute towards the search images used by prey. Specifically, each morph could have relatively equal detectability if their abundance and saliency have antagonistic effects on search-image formation in prey.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"36 4","pages":"araf059"},"PeriodicalIF":2.5,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12202312/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144526339","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

Multigenerational fitness outcomes of double-brooding: a 30-year study of a migratory songbird. 双育的多代适应性结果：一项对候鸟30年的研究。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2025-05-04 eCollection Date: 2025-07-01 DOI: 10.1093/beheco/araf040

Hayley A Spina, Amy E M Newman, Nathaniel T Wheelwright, Daniel J Mennill, Stéphanie M Doucet, Joseph B Burant, Sarah L Dobney, Sarah D Mueller, Greg W Mitchell, D Ryan Norris

{"title":"Multigenerational fitness outcomes of double-brooding: a 30-year study of a migratory songbird.","authors":"Hayley A Spina, Amy E M Newman, Nathaniel T Wheelwright, Daniel J Mennill, Stéphanie M Doucet, Joseph B Burant, Sarah L Dobney, Sarah D Mueller, Greg W Mitchell, D Ryan Norris","doi":"10.1093/beheco/araf040","DOIUrl":"10.1093/beheco/araf040","url":null,"abstract":"In birds, rearing multiple broods per season can substantially increase the annual number of fledglings produced. However, the contribution of double-brooding to lifetime fitness is unclear because the number of recruits arising from single- and double-brooded females is rarely measured. Poor estimates of fitness also make it challenging to document potential trade-offs between double-brooding and survival or future reproductive output. To understand the contribution of double-brooding to lifetime fitness and whether double-brooding was associated with life-history trade-offs, we used 30 years of reproductive data on female Savannah sparrows (Passerculus sandwichensis) breeding on Kent Island, New Brunswick. Estimates of fitness included an analysis of recruitment of both F1 (first generation) and F2 (second generation) offspring from females that did and did not raise a second brood. We detected no net costs of double-brooding. Double-brooded females had higher annual apparent survival rates than single-brooded females and F1 offspring from first broods of double-brooded females were more likely to recruit into the population than F1 offspring from single-brooded females. Double-brooding also improved lifetime fitness. Recruitment of F1 offspring was positively related to the number of seasons that a female double-brooded and, as a result, there was a higher number of F2 recruits from F1 offspring arising from double-brooded females than from F1 offspring arising from single-brooded females. Our results provide strong evidence that double-brooding is a beneficial reproductive strategy for Savannah sparrows and suggests that double-brooding females are likely high-quality individuals capable of rearing two broods a season with no net fitness costs.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"36 4","pages":"araf040"},"PeriodicalIF":2.2,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12137901/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144233050","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

Parasitic mussels induce upstream movement in their fish hosts: early evidence of extended phenotype. 寄生贻贝诱导其鱼类宿主的上游运动：扩展表型的早期证据。

IF 2.5 3区环境科学与生态学

Behavioral Ecology Pub Date : 2025-05-04 eCollection Date: 2025-07-01 DOI: 10.1093/beheco/araf043

Sebastian L Rock, P Anders Nilsson, Johan Watz, Olle Calles, Martin Österling

{"title":"Parasitic mussels induce upstream movement in their fish hosts: early evidence of extended phenotype.","authors":"Sebastian L Rock, P Anders Nilsson, Johan Watz, Olle Calles, Martin Österling","doi":"10.1093/beheco/araf043","DOIUrl":"10.1093/beheco/araf043","url":null,"abstract":"Parasites often have a large impact on their hosts and can alter host phenotype to increase their own fitness, a phenomenon known as extended phenotype. Studies demonstrating extended phenotype for non-trophically transmitted parasites are scarce. Unionid mussels have a parasitic life stage adapted to parasitize fish which can affect host behavior, habitat use and growth rates, raising the question if parasitic freshwater mussels can also manipulate their host fish to compensate for downstream dispersal and to reach habitats favorable for newly excysted juvenile mussels. Wild-caught, parasite-naïve juvenile brown trout (Salmo trutta) were PIT-tagged, and half of the individuals were infested with parasitic larvae from the freshwater pearl mussel (Margaritifera margaritifera), all individuals were then returned to their home stream. During the following year, trout were tracked to investigate movement and habitat use, and also periodically recaptured to measure growth and body condition factor. The infested trout showed significantly higher upstream movement than non-infested trout and were more often recaptured in stream sections with slow-moving shallow water, particularly during the parasite excystment period (270 d post infestation). These data suggest that the juvenile mussels were successfully transported an average of 170 m upstream from the host trout release points to stream sections favorable for adult mussels. Infested trout survived as well as the non-infested, but had a significantly lower specific growth rate than non-infested trout. These results indicate a first example of extended phenotype in unionid mussels and highlight the importance of understanding glochidia-induced changes to host fish behavioral ecology.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"36 4","pages":"araf043"},"PeriodicalIF":2.5,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12228058/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144574777","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

Decoding the chaffinch "rain" call: a female-directed alarm call? 解读苍头燕雀的“雨”叫声：雌性发出的警报呼叫？

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2025-05-04 eCollection Date: 2025-07-01 DOI: 10.1093/beheco/araf039

Léna de Framond, Rebecca Müller, Alberto Comin, Henrik Brumm

{"title":"Decoding the chaffinch \"rain\" call: a female-directed alarm call?","authors":"Léna de Framond, Rebecca Müller, Alberto Comin, Henrik Brumm","doi":"10.1093/beheco/araf039","DOIUrl":"10.1093/beheco/araf039","url":null,"abstract":"Acoustic communication is vital for many animal taxa. Many songbirds have elaborate communication systems and large vocal repertoires consisting of learned, complex songs, and calls that are usually simpler in structure. While the functions of songs have been well researched, the functions of bird calls are often difficult to deduce from the context. A well-known example is the \"rain\" call of the common chaffinch (Fringilla coelebs): although chaffinches are very common and \"rain\" calls are conspicuous and frequent, the function of this call is still a mystery. It has been proposed to serve such diverse functions such as song substitute in territorial contests, predator alarm call, or within-pair coordination. Here, we systematically tested these hypothesized three functions, using a combination of two playback experiments and field observations. We found that chaffinches did not react to \"rain\" call playbacks with the same aggressive behavior as to song playbacks. Predator vocalizations, however, consistently elicited \"rain\" calls. In addition, when a female was visible, male chaffinches used \"rain\" calls more often both during predator simulation and in the actual presence of predators. Since the \"rain\" call is only uttered during the breeding season and it is associated with the presence of a female and predators, we propose that the \"rain\" call is a specific alarm call used in the context of defense against nest predators.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"36 4","pages":"araf039"},"PeriodicalIF":2.2,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12137894/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144233041","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

Geographic differences in individual recognition linked with social but not nonsocial cognition. 个体认知的地理差异与社会认知有关，但与非社会认知无关。

IF 2.5 3区环境科学与生态学

Behavioral Ecology Pub Date : 2025-05-03 eCollection Date: 2025-07-01 DOI: 10.1093/beheco/araf042

Juanita Pardo-Sanchez, So Eun Moon, Elizabeth A Tibbetts

{"title":"Geographic differences in individual recognition linked with social but not nonsocial cognition.","authors":"Juanita Pardo-Sanchez, So Eun Moon, Elizabeth A Tibbetts","doi":"10.1093/beheco/araf042","DOIUrl":"10.1093/beheco/araf042","url":null,"abstract":"Cognition is a complex trait with multiple components that may vary independently or in concert. Thus far, we know little about how geographic differences in behavior are linked with different aspects of cognition. Behavioral differences could be linked with cognition in three ways: with multiple aspects of cognition, some but not other aspects of cognition, or no cognitive differences. Here, we compare cognitive performance in two populations of Polistes fuscatus wasps that differ in their capacity for individual face recognition. Individual recognition involves keeping track of multiple individual relationships and responding appropriately, so it is thought to increase social complexity. As a result, we predicted Michigan wasps that use individual recognition may have better cognitive performance than Pennsylvania wasps that are not able to individually recognize conspecifics. We find that Michigan wasps are more adept at individual face learning than Pennsylvania wasps. However, the populations perform similarly on other cognitive tasks, including color learning and memory, reversal learning, and odor learning and memory. Therefore, population differences in social behavior affect individual face learning, but are not linked with generalized differences in cognition. These findings suggest that socially complex societies may influence the evolution of social cognition specifically.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"36 4","pages":"araf042"},"PeriodicalIF":2.5,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12125709/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198220","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

Not all who wander are lost: prospecting and settlement of male floaters in the spotless starling. 并不是所有的流浪者都迷路了：在一尘不染的椋鸟中寻找和定居雄性漂浮物。

IF 2.5 3区环境科学与生态学

Behavioral Ecology Pub Date : 2025-04-17 eCollection Date: 2025-05-01 DOI: 10.1093/beheco/araf028

Iraida Redondo, Roger Fusté, Jaime Muriel, Eduardo Gómez-Llanos, Raquel Monclús, Lorenzo Pérez-Rodríguez, Diego Gil

{"title":"Not all who wander are lost: prospecting and settlement of male floaters in the spotless starling.","authors":"Iraida Redondo, Roger Fusté, Jaime Muriel, Eduardo Gómez-Llanos, Raquel Monclús, Lorenzo Pérez-Rodríguez, Diego Gil","doi":"10.1093/beheco/araf028","DOIUrl":"https://doi.org/10.1093/beheco/araf028","url":null,"abstract":"Floaters are non-breeding individuals that lack a territory or a breeding site. In many species, they can be seen visiting the territories of conspecifics before obtaining their own breeding site. Prospecting behavior is hypothesized to benefit floaters through information acquisition, enhanced site familiarity and dominance over other floaters. Here, we used detections of PIT-tagged male floaters in a population of spotless starlings (Sturnus unicolor). We investigated how floater activity varied across breeding stages and how their visits influenced subsequent nest site selection. We also tested whether distance, reproductive success, and phenotype and fate of the former owner influenced final settlement. We found that floater activity increased during the nestling-rearing period as nestling age increased. Floaters were more likely to breed near the area where they had been detected the previous year, suggesting that prospecting allows males to secure a foothold in their future settlement area. Although prospecting was higher in nests with a higher number of nestlings, neither breeding success, phenotype, nor provisioning rate of the last owner were related to nest choice, suggesting that public information is not used by males to decide where to settle. However, we found that floaters were more likely to breed in nest boxes where the previous owner had disappeared from the colony, suggesting that visits by male floaters in this species allow them to detect new vacancies. Our results suggest that prospecting might serve several non-mutually exclusive functions. Further studies in non-saturated colonies could shed light on the functional aspects of prospecting.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"36 3","pages":"araf028"},"PeriodicalIF":2.5,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12059212/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143967931","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

Short-term increases in rival number improves single mating productivity in male Drosophila. 竞争对手数量的短期增加提高了雄性果蝇的单次交配生产力。

IF 2.5 3区环境科学与生态学

Behavioral Ecology Pub Date : 2025-04-10 eCollection Date: 2025-05-01 DOI: 10.1093/beheco/araf032

Lily Amos, Stuart Wigby, Liam R Dougherty

{"title":"Short-term increases in rival number improves single mating productivity in male Drosophila.","authors":"Lily Amos, Stuart Wigby, Liam R Dougherty","doi":"10.1093/beheco/araf032","DOIUrl":"10.1093/beheco/araf032","url":null,"abstract":"In variable environments, animals can change their reproductive behaviors and physiology to maximize reproductive returns. Natural environments vary in multifaceted ways, and animals may need to integrate multiple social or physical cues to adopt the most effective behavioral strategy. In a fully factorial 2 × 2 × 2 experiment, we exposed males to three factors: the number of rivals (10 or 30), food availability (present/absent) and mechanical shaking (present/absent). After 60 min of exposure, we recorded the male's mating latency, copulation duration and the number of offspring produced after a single mating. We also noted the latency of the males partner to remate with a stock male 24 h later. When rival number was increased from 10 per vial to 30 per vial, males sired more offspring. Males also varied their copulation duration and mating latency in response to the number of rivals, but in a condition-dependent manner. In the absence of vortexing, males mated for a shorter time when kept with 30 rivals, but the opposite was observed when males were vortexed. When males were fed and held in groups of 30, they took longer to begin mating compared to the other treatments. Our findings are consistent with the idea that male Drosophila integrate social cues to respond to levels of sperm competition and plastically allocate their ejaculate, but we have demonstrated that they can occur more rapidly (1 h) than previously thought (>24 h). Overall, our data highlight that combinatorial approaches can reveal new relationships between environment and behavior.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"36 3","pages":"araf032"},"PeriodicalIF":2.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12080552/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075737","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