Biology Letters最新文献_第5页

Costs and benefits of heterosexual interactions on female mandrills. 异性交往对雌性山魈的成本和收益。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-08-05 DOI: 10.1098/rsbl.2026.0275

Marie J E Charpentier, Fabienne Justy, Théo Deremarque, Richard Mbadoumou, Alice Baniel

{"title":"Costs and benefits of heterosexual interactions on female mandrills.","authors":"Marie J E Charpentier, Fabienne Justy, Théo Deremarque, Richard Mbadoumou, Alice Baniel","doi":"10.1098/rsbl.2026.0275","DOIUrl":"https://doi.org/10.1098/rsbl.2026.0275","url":null,"abstract":"In primates, most evidence linking sociality to fitness comes from studies of female-female bonds, whereas the consequences of heterosexual relationships remain understudied. This is particularly true in species such as mandrills (Mandrillus sphinx), where male group tenure is short, and interactions with females can range from affiliative to coercive. Using 13 years of behavioural and life-history data on 76 adult females, we show that grooming exchanged with all males has contrasting fitness consequences depending on its direction. Grooming given to males tended to improve female survival and was associated with higher juvenile offspring survival, whereas grooming received from males reduced female survival. These opposing effects suggest that heterosexual grooming interactions may entail both benefits and costs for females, depending on whether females provide or receive affiliation. Finally, agonistic interactions between females and males showed modest evidence of negative associations with juvenile survival, whereas male-female spatial proximity had no detectable effect overall. Our results show that even transient male-female associations can have lasting consequences for fitness and that these effects depend critically on the direction and timing of specific interactions rather than on global measures of sociality.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 8","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148673036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evolutionary distinctiveness and parasite specificity determine infection of non-native fish. 进化独特性和寄生虫特异性决定了非本地鱼类的感染。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-07-29 DOI: 10.1098/rsbl.2026.0261

Andrew William Park, Wesley Dáttilo, Miguel Rubio-Godoy, Gerardo Pérez-Ponce de León

{"title":"Evolutionary distinctiveness and parasite specificity determine infection of non-native fish.","authors":"Andrew William Park, Wesley Dáttilo, Miguel Rubio-Godoy, Gerardo Pérez-Ponce de León","doi":"10.1098/rsbl.2026.0261","DOIUrl":"10.1098/rsbl.2026.0261","url":null,"abstract":"While parasites frequently cross the host species barrier and increase their host range, the mechanisms underlying successful novel cross-species transmission remain poorly understood. Host range expansion of complex life-cycle parasites is especially challenging to assess because they use different host species for development and reproduction. Addressing this knowledge gap, we use a large, published dataset on fish-helminth interactions, which includes introduced, non-native fish species, providing an opportunity to examine parasite infection of novel species in the context of a parasite's known phylogenetic host range and the evolutionary distance between non-native fish and native hosts. We found that larval and adult-stage parasites are influenced by distinct factors in determining their host range expansion. Larval parasites with broad phylogenetic host ranges exhibit higher infection success in novel hosts than specialists. In contrast, both specialist and generalist adults can successfully infect new host species. Notably, specialists achieve the highest infection success when novel hosts are closely related to their typical hosts. Our findings provide evidence of the trade-offs associated with specialism and generalism in parasites and enhance our understanding of the ecological and evolutionary constraints shaping host range expansion. These insights are critical for predicting future host-parasite assemblies in the context of global change.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 7","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148599026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Host species-driven genetic structure of respiratory mites in two sympatric marine mammal species. 两种同域海洋哺乳动物呼吸螨的宿主驱动遗传结构。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-07-29 DOI: 10.1098/rsbl.2026.0180

Guillermo Marimán, Daniel Andrés Gómez-Lobo Camacho, Josefina Gutierrez, Karla Calderón, Maria Florencia Grandi, Silvia Gastal, Mauricio Seguel, Claudio Verdugo

{"title":"Host species-driven genetic structure of respiratory mites in two sympatric marine mammal species.","authors":"Guillermo Marimán, Daniel Andrés Gómez-Lobo Camacho, Josefina Gutierrez, Karla Calderón, Maria Florencia Grandi, Silvia Gastal, Mauricio Seguel, Claudio Verdugo","doi":"10.1098/rsbl.2026.0180","DOIUrl":"10.1098/rsbl.2026.0180","url":null,"abstract":"Understanding the factors shaping parasite population structure is key to unravelling host-parasite coevolution and transmission dynamics. Respiratory mites of the genus Orthohalarachne (Acari: Halarachnidae) are obligate parasites infecting the respiratory tract of otariids, yet their population genetics remain largely unexplored. Here, we examined the genetic structure of O. attenuata and O. diminuata infecting two sympatric hosts, the South American fur seal (Arctocephalus australis; SAFS) and the South American sea lion (Otaria byronia; SASL), across their distribution ranges. Genetic analyses revealed strong host-associated divergence for both mite species, independent of geographic origin. Variation among host species explained more than 65% of total genetic structure in O. attenuata and more than 57% in O. diminuata, with no haplotypes shared between SAFS- and SASL-associated mites. Despite overlapping distributions and potential interspecific contact, gene flow between mite populations is highly constrained, suggesting prolonged co-divergence with their hosts and limited opportunities for cross-species transmission. Ecological segregation, reproductive timing, and behavioural barriers likely reinforce host specificity. Our findings highlight Orthohalarachne mites as a model system to study parasite diversification and reveal potential cryptic speciation within morphologically indistinguishable lineages. This work underscores the importance of multi-host, spatially wide approaches for understanding the evolutionary and epidemiological dynamics of parasites in marine ecosystems.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 7","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148599051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physical constraints, not sociality, shape primate vocal repertoire size. 生理上的限制，而非社会性，决定了灵长类动物声音曲目的大小。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-07-29 DOI: 10.1098/rsbl.2026.0332

Adriano R Lameira

{"title":"Physical constraints, not sociality, shape primate vocal repertoire size.","authors":"Adriano R Lameira","doi":"10.1098/rsbl.2026.0332","DOIUrl":"10.1098/rsbl.2026.0332","url":null,"abstract":"Primate vocal richness and ultimately human language are widely thought to have co-evolved with social scale, as formalized by the social brain/complexity hypothesis, whereby managing increasing numbers of social relationships drives increasingly diverse vocal signals. However, this framework largely overlooks the physical constraints of sound production and transmission-specifically body size and habitat structure-which define the conditions under which communication unfolds on the social stage. Here, using the most comprehensive dataset of primate vocal repertoires assembled to date (77 sps) and phylogenetically controlled analyses, I find that neither brain size nor group size predicts repertoire size, providing no support for socially driven hypotheses. Instead, vocal repertoire size is explained by an interaction between body size and arboreality: across primates ranging from 40 g to 100 kg, each doubling of body size is associated with an approximately 28% increase in repertoire size in arboreal species. By contrast, terrestriality reduces repertoire size relative to expectation (approx. 3%), whereas arboreal (+6%) and mixed (+17%) habitat use increase it. Findings challenge the role of human uber-sociality as a driver of language evolution, highlight arboreality as a potential precondition for vocal richness in large-bodied ancestral hominids and show that primate vocal richness reflects physics more than politics.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 7","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148599087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A persistent subtropical dip in the diversity at deep-sea cold-seeps. 深海冷渗漏区生物多样性的亚热带持续下降。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-07-22 DOI: 10.1098/rsbl.2026.0095

Steffen Kiel

引用次数: 0

Dancers in fine feathers: the evolution of gestural display organization in lekking birds. 穿着精美羽毛的舞者：鸟类的手势展示组织的进化。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-07-15 DOI: 10.1098/rsbl.2025.0778

Rafael de Oliveira Fratoni, Sabrina B L Araujo, Daniela M Perez, Lilian T Manica

引用次数: 0

Coral-associated fishes accelerate coral wound healing and photosynthetic recovery. 与珊瑚有关的鱼类加速珊瑚伤口愈合和光合作用恢复。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-07-08 DOI: 10.1098/rsbl.2026.0177

Hayden Vega, Craig W Osenberg, Ashley W Seifert, Ninah Munk, Adrian C Stier

{"title":"Coral-associated fishes accelerate coral wound healing and photosynthetic recovery.","authors":"Hayden Vega, Craig W Osenberg, Ashley W Seifert, Ninah Munk, Adrian C Stier","doi":"10.1098/rsbl.2026.0177","DOIUrl":"https://doi.org/10.1098/rsbl.2026.0177","url":null,"abstract":"Coral resilience is increasingly recognized as the product of complex interactions between corals, their endosymbiotic algae and external symbionts such as fishes and invertebrates. While previous studies have documented how coral-associated fishes influence coral growth and thermal tolerance, their role in supporting tissue repair and regeneration following physical injury remains poorly understood. Here, we experimentally test whether coral-associated fishes facilitate wound healing in the coral Pocillopora spp. We imposed small and large wounds and monitored healing in the presence and absence of coral-dwelling damselfishes (Dascyllus flavicaudus). Corals exposed to fishes exhibited faster wound closure and higher photosynthetic efficiency in recently regenerated tissue, particularly for larger wounds. These findings suggest that coral-associated fishes promote the energetic and microenvironmental conditions necessary for tissue repair. Our results extend the emerging understanding of coral holobiont resilience, highlighting the importance of external symbionts in sustaining coral recovery from physical disturbances.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 7","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148403526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-07-08 DOI: 10.1098/rsbl.2026.0225

Stefania Casagrande, Agustina G Laich, Giacomo Dell'Omo

{"title":"Similar flight performance but sex-specific mitochondrial responses in free-flying pigeons.","authors":"Stefania Casagrande, Agustina G Laich, Giacomo Dell'Omo","doi":"10.1098/rsbl.2026.0225","DOIUrl":"https://doi.org/10.1098/rsbl.2026.0225","url":null,"abstract":"Sex differences in metabolic responses of animals performing natural behaviours remain poorly understood, particularly under free-living conditions. Here, we examined how locomotor effort relates to mitochondrial metabolism in red blood cells in homing pigeons (Columba livia) by combining biologging of flight behaviour with measurements of mitochondrial respiration taken before and immediately after flight. Birds were equipped with global positioning system (GPS) loggers and tri-axial accelerometers, and movement effort was quantified using vectorial dynamic body acceleration (VeDBA). Flight was associated with a marked increase in mitochondrial respiration linked to aerobic energy production in both sexes, with increases ranging from 58.2% to 87.3% across traits. Males and females showed similar flight speeds, flight durations and social flight behaviour. Nevertheless, females showed higher VeDBA and higher post-flight mitochondrial aerobic metabolism than males, indicating sex differences in both mechanical and physiological responses. The relationship between VeDBA and post-flight mitochondrial metabolism was also sex-specific: as predicted, higher VeDBA was associated with higher ROUTINE and OXPHOS in males, but with lower values in females, a pattern for which we discuss possible physiological and behavioural explanations. Independent of flight status, males exhibited higher mitochondrial coupling efficiency than females, which was explained by their higher body mass. Together, these results provide evidence that flight effort was mirrored in blood mitochondrial metabolism and show that similar flight performance can mask potential sex-specific energetic signatures.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 7","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148403482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Visual signal dynamicity shapes detectability in the wild: an experiment with a mate-searching butterfly. 视觉信号动态塑造了野外的可探测性：一只寻找配偶的蝴蝶的实验。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-07-01 DOI: 10.1098/rsbl.2025.0772

Sanni A Silvasti, Marilia Fernandes Erickson, Darrell J Kemp

{"title":"Visual signal dynamicity shapes detectability in the wild: an experiment with a mate-searching butterfly.","authors":"Sanni A Silvasti, Marilia Fernandes Erickson, Darrell J Kemp","doi":"10.1098/rsbl.2025.0772","DOIUrl":"https://doi.org/10.1098/rsbl.2025.0772","url":null,"abstract":"For any sensory system, the detection of relevant information is a challenging task. Natural habitats are full of sensory stimulation, of which only a fraction can be detected and processed. For visual animals, some features, like the movement of the target, are known to enhance signal saliency. However, less is known about the effect of other dynamic signal properties, such as flashing or flickering, that are known to improve saliency in human contexts. Here, we used mate-seeking butterflies in their natural habitat to test how flashing, lateral back-and-forth movement, and their interaction affect the detectability of a visual stimulus. We found that both lateral movement and flashing (resulting from an oscillation that simulated 'fluttering') of the stimulus contributed independently and additively to the likelihood of detection, with some evidence that movement made the stimulus more conspicuous from greater distances. These effects did not interact, meaning that flashing did not modify the influence of movement (and vice versa). Coupled with evidence in humans, this result supports the importance of flashing as a universal, potentially independent means of increasing visual signal saliency.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 7","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148359388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transient marine species disproportionately expand the morphospace of North American continental freshwater fishes. 短暂的海洋物种不成比例地扩展了北美大陆淡水鱼的形态空间。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-07-01 DOI: 10.1098/rsbl.2026.0141

Kevin T Torgersen, Eric B Haddad, Jessé M Figueiredo-Filho, Bradley J Bouton, Noah J Kleyla, Margaret M Bagot, Catherine M Arms, Christian F Mack, Michael D Burns, James S Albert

{"title":"Transient marine species disproportionately expand the morphospace of North American continental freshwater fishes.","authors":"Kevin T Torgersen, Eric B Haddad, Jessé M Figueiredo-Filho, Bradley J Bouton, Noah J Kleyla, Margaret M Bagot, Catherine M Arms, Christian F Mack, Michael D Burns, James S Albert","doi":"10.1098/rsbl.2026.0141","DOIUrl":"https://doi.org/10.1098/rsbl.2026.0141","url":null,"abstract":"Marine taxa have repeatedly introduced diversity to continental freshwater fish faunas, yet their contribution to total morphological disparity remains poorly quantified. We analysed body shape disparity across 642 North American fish species using three-dimensional geometric morphometrics and kernel density hypervolumes to assess the extent to which transient marine species expand morphospace beyond that occupied by exclusively freshwater species. Marine-affiliated taxa account for 7.7× the hypervolume of freshwater species and expand the total morphospace by 144%, significantly exceeding chance expectations (p < 0.0001). Marine and freshwater morphospaces exhibited minimal overlap, with marine taxa extending the morphospace along multiple axes of body shape disparity. Despite comprising only 27% of the species, marine-affiliated taxa contribute disproportionately to morphological variance and exhibit greater within-group dispersion. These patterns support a 'museum effect', in which marine environments preserve the morphological diversity lost from more unstable freshwater systems. Our results demonstrate that regional freshwater morphological diversity depends partly on connectivity to marine source pools, with implications for understanding evolutionary constraints and conserving functional diversity in freshwater ecosystems.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 7","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148359399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0