Journal of Comparative Physiology A最新文献

Representation of bulk water flow in the goldfish (Carassius auratus) midbrain 金鱼（Carassius auratus）中脑中大量水流的表征

Journal of Comparative Physiology A Pub Date : 2024-09-17 DOI: 10.1007/s00359-024-01715-4

Grace E. Van Susteren, Joachim Mogdans

{"title":"Representation of bulk water flow in the goldfish (Carassius auratus) midbrain","authors":"Grace E. Van Susteren, Joachim Mogdans","doi":"10.1007/s00359-024-01715-4","DOIUrl":"https://doi.org/10.1007/s00359-024-01715-4","url":null,"abstract":"With the mechanosensory lateral line system, fish and semi-aquatic amphibians detect water movements and pressure gradients. Hydrodynamic information picked up by the lateral line receptors is relayed via peripheral nerves to the lateral line brainstem and from there to the midbrain torus semicircularis. Most prior electrophysiological studies of the lateral line were done under still-water conditions, even though natural environments encountered by fish include bulk-flow. Flow velocity and direction sensing are likely important to fish as they navigate variable, turbulent environments, but to date, only few studies have gathered information on the processing of bulk water flow by midbrain units. Here, we recorded from lateral line units in the torus semicircularis while presenting various bulk flow velocities in anterior-to-posterior and posterior-to-anterior flow directions. We studied (1) the temporal spike patterns of mechanosensory midbrain units, (2) the processing of bulk water flow velocity by these units, and (3) the processing of bulk water flow direction. We found that midbrain mechanosensory units alter their discharge rate during bulk water flow – some units responded to flow by increasing their discharge rate but did not vary this rate significantly with flow velocity, while others exhibited increasing discharge rates with increasing flow velocity. Units directly coding for flow direction were not found.","PeriodicalId":15397,"journal":{"name":"Journal of Comparative Physiology A","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142254064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Population parameters of Drosophila larval cooperative foraging 果蝇幼虫合作觅食的种群参数

Journal of Comparative Physiology A Pub Date : 2024-04-10 DOI: 10.1007/s00359-024-01701-w

Amy Liao, Christy Qian, Sepideh Abdi, Peyton Yee, Sean Michael Cursain, Niav Condron, Barry Condron

{"title":"Population parameters of Drosophila larval cooperative foraging","authors":"Amy Liao, Christy Qian, Sepideh Abdi, Peyton Yee, Sean Michael Cursain, Niav Condron, Barry Condron","doi":"10.1007/s00359-024-01701-w","DOIUrl":"https://doi.org/10.1007/s00359-024-01701-w","url":null,"abstract":"Cooperative foraging behavior can be advantageous when there is a common exploitable resource. By cooperating, members of the group can take advantage of the potential of increased efficiency of working together as well as equitable distribution of the product. An experimental signature of cooperative foraging is an Allee effect where at a certain number of individuals, there is a peak of fitness. What happens when there are intruders especially ones that do not contribute to any work required for foraging? Drosophila larvae secrete digestive enzymes and exodigest food. Under crowded conditions in liquid food these larvae form synchronized feeding clusters which provides a fitness benefit. A key for this synchronized feeding behavior is the visually guided alignment between adjacent larvae in a feeding cluster. Larvae who do not align their movements are excluded from the groups and subsequently lose the benefit. This may be a way of editing the group to include only known members. To test the model, the fitness benefit from cooperative behavior was further investigated to establish an Allee effect for a number of strains including those who cannot exodigest or cluster. In a standard lab vial, about 40 larvae is the optimal number for fitness. Combinations of these larvae were also examined. The expectation was that larvae who do not contribute to exodigestion are obligate cheaters and would be expelled. Indeed, obligate cheaters gain greatly from the hosts but paradoxically, so do the hosts. Clusters that include cheaters are more stable. Therefore, clustering and the benefits from it are dependent on more than just the contribution to exodigestion. This experimental system should provide a rich future model to understand the metrics of cooperative behavior.","PeriodicalId":15397,"journal":{"name":"Journal of Comparative Physiology A","volume":"235 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140571311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

“Resistance leads to self-destruction”: how an (a)political strategy helped Karl von Frisch succeed during the Nazi era "抵抗导致自我毁灭"：（a）政治战略如何帮助卡尔-冯-弗里施在纳粹时代取得成功

Journal of Comparative Physiology A Pub Date : 2024-03-28 DOI: 10.1007/s00359-024-01697-3

Günther K. H. Zupanc, Susanne Wanninger

{"title":"“Resistance leads to self-destruction”: how an (a)political strategy helped Karl von Frisch succeed during the Nazi era","authors":"Günther K. H. Zupanc, Susanne Wanninger","doi":"10.1007/s00359-024-01697-3","DOIUrl":"https://doi.org/10.1007/s00359-024-01697-3","url":null,"abstract":"Karl von Frisch, one of the leading zoologists of the twentieth century and co-founder of the Journal of Comparative Physiology A, has been frequently portrayed as an opponent of the Nazi regime because he, as a ‘quarter-Jew,’ faced the threat of forced retirement from his position as a professor at the University of Munich during the Third Reich. However, doubts about an active opposition role have surfaced in recent years. A litmus test for assessing the validity of this notion is provided by our discovery that four of the six core members of the anti-Nazi resistance group ‘White Rose’—Sophie Scholl, Hans Scholl, Christoph Probst, and Alexander Schmorell—were his students. When they were arrested, sentenced to death, and executed, he seemed to ignore this historic event, both during and after World War II—in line with his belief that resistance leads to self-destruction, and research can flourish only by ignoring what happens around oneself. On the other hand, this seemingly apolitical attitude did not prevent him from making use of politics when it served his interests. Such actions included his (pseudo-)scientific justification of forced sterilization of people suffering from hereditary disorders during the Third Reich and his praise of the Nazi government’s efforts to “keep races pure.” As unsettling as these and some other political views and actions of Karl von Frisch are, they enabled him to carry out several critical pieces of his research agenda during the Third Reich, which three decades later earned him a Nobel Prize.","PeriodicalId":15397,"journal":{"name":"Journal of Comparative Physiology A","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140312493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Size matters: individual variation in auditory sensitivity may influence sexual selection in Pacific treefrogs (Pseudacris regilla) 大小很重要：听觉灵敏度的个体差异可能影响太平洋树蛙（Pseudacris regilla）的性选择

Journal of Comparative Physiology A Pub Date : 2024-02-17 DOI: 10.1007/s00359-024-01690-w

{"title":"Size matters: individual variation in auditory sensitivity may influence sexual selection in Pacific treefrogs (Pseudacris regilla)","authors":"","doi":"10.1007/s00359-024-01690-w","DOIUrl":"https://doi.org/10.1007/s00359-024-01690-w","url":null,"abstract":"<h3>Abstract</h3> The matched filter hypothesis proposes a close match between senders and receivers and is supported by several studies on variation in signal properties and sensory-processing mechanisms among species and populations. Importantly, within populations, individual variation in sensory processing may affect how receivers perceive signals. Our main goals were to characterize hearing sensitivity of Pacific treefrogs (Pseudacris regilla), assess patterns of individual variation in hearing sensitivity, and evaluate how among-individual variation in hearing sensitivity and call frequency content affect auditory processing of communication signals. Overall, males and females are most sensitive to frequencies between 2.0 and 2.5 kHz, which matches the dominant frequency of the call, and have a second region of high sensitivity between 400 and 800 Hz that does not match the fundamental frequency of the call. We found high levels of among-individual variation in hearing sensitivity, primarily driven by subject size. Importantly, patterns of among-individual variation in hearing differ between males and females. Cross-correlation analyses reveal that among-individual variation in hearing sensitivity may lead to differences on how receivers, particularly females, perceive male calls. Our results suggest that individual variation in sensory processing may affect signal perception and influence the evolution of sexually selected traits.","PeriodicalId":15397,"journal":{"name":"Journal of Comparative Physiology A","volume":"124 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139760786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Avian migration clocks in a changing world 变化世界中的鸟类迁徙时钟

Journal of Comparative Physiology A Pub Date : 2024-02-02 DOI: 10.1007/s00359-023-01688-w

Barbara Helm, Miriam Liedvogel

{"title":"Avian migration clocks in a changing world","authors":"Barbara Helm, Miriam Liedvogel","doi":"10.1007/s00359-023-01688-w","DOIUrl":"https://doi.org/10.1007/s00359-023-01688-w","url":null,"abstract":"Avian long-distance migration requires refined programming to orchestrate the birds’ movements on annual temporal and continental spatial scales. Programming is particularly important as long-distance movements typically anticipate future environmental conditions. Hence, migration has long been of particular interest in chronobiology. Captivity studies using a proxy, the shift to nocturnality during migration seasons (i.e., migratory restlessness), have revealed circannual and circadian regulation, as well as an innate sense of direction. Thanks to rapid development of tracking technology, detailed information from free-flying birds, including annual-cycle data and actograms, now allows relating this mechanistic background to behaviour in the wild. Likewise, genomic approaches begin to unravel the many physiological pathways that contribute to migration. Despite these advances, it is still unclear how migration programmes are integrated with specific environmental conditions experienced during the journey. Such knowledge is imminently important as temporal environments undergo rapid anthropogenic modification. Migratory birds as a group are not dealing well with the changes, yet some species show remarkable adjustments at behavioural and genetic levels. Integrated research programmes and interdisciplinary collaborations are needed to understand the range of responses of migratory birds to environmental change, and more broadly, the functioning of timing programmes under natural conditions.","PeriodicalId":15397,"journal":{"name":"Journal of Comparative Physiology A","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139669651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemosensory detection of glucosinolates as token stimuli for specialist insects on brassicaceous plants: discovery and impact 作为黄铜类植物上专门昆虫的象征性刺激物的葡萄糖苷酸盐的化学感官检测：发现与影响

Journal of Comparative Physiology A Pub Date : 2023-12-20 DOI: 10.1007/s00359-023-01684-0

Chen-Zhu Wang, Joop J. A. van Loon

{"title":"Chemosensory detection of glucosinolates as token stimuli for specialist insects on brassicaceous plants: discovery and impact","authors":"Chen-Zhu Wang, Joop J. A. van Loon","doi":"10.1007/s00359-023-01684-0","DOIUrl":"https://doi.org/10.1007/s00359-023-01684-0","url":null,"abstract":"In this paper, we take a historical perspective by going back to Verschaffelt’s landmark study published in 1910, in which he found that glucosinolates were used as token stimuli by larvae of Pieris butterflies, specialist feeders on plants in the family Brassicaceae. This classic discovery provided key evidence for Fraenkel (Science 129:1466–1470, 1959) to elaborate on the function of secondary plant substances and for Ehrlich and Raven (Evolution 18:586–608, 1964) to put forward the hypothesis of insect–plant coevolution. The discovery by Schoonhoven (Kon Nederl Akad Wetensch Amsterdam Proc Ser C70:556–568, 1967) of taste neurons highly sensitive to glucosinolates in Pieris brassicae was an important milestone in elucidating the chemosensory basis of host-plant specialization. The molecular basis of glucosinolate sensitivity was elucidated recently (Yang et al., PLoS Genet 17, 2021) paving the way to unravel the evolution of gustatory receptors tuned to glucosinolates that are crucial for host-plant selection of Pieris butterflies. We propose a hypothetical model for the evolution of labeled-line neurons tuned to token stimuli.","PeriodicalId":15397,"journal":{"name":"Journal of Comparative Physiology A","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138821773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ventral wing hairs provide tactile feedback for aerial prey capture in the big brown bat, Eptesicus fuscus 腹侧翼毛为大棕蝠空中捕获猎物提供触觉反馈

Journal of Comparative Physiology A Pub Date : 2023-12-14 DOI: 10.1007/s00359-023-01682-2

Brittney L. Boublil, Chao Yu, Grant Shewmaker, Susanne Sterbing, Cynthia F. Moss

{"title":"Ventral wing hairs provide tactile feedback for aerial prey capture in the big brown bat, Eptesicus fuscus","authors":"Brittney L. Boublil, Chao Yu, Grant Shewmaker, Susanne Sterbing, Cynthia F. Moss","doi":"10.1007/s00359-023-01682-2","DOIUrl":"https://doi.org/10.1007/s00359-023-01682-2","url":null,"abstract":"Bats rely on their hand-wings to execute agile flight maneuvers, to grasp objects, and cradle young. Embedded in the dorsal and ventral membranes of bat wings are microscopic hairs. Past research findings implicate dorsal wing hairs in airflow sensing for flight control, but the function of ventral wing hairs has not been previously investigated. Here, we test the hypothesis that ventral wing hairs carry mechanosensory signals for flight control, prey capture, and handling. To test this hypothesis, we used synchronized high-speed stereo video and audio recordings to quantify flight and echolocation behaviors of big brown bats (Eptesicus fuscus) engaged in an aerial insect capture task. We analyzed prey-capture strategy and performance, along with flight kinematics, before and after depilation of microscopic hairs from the bat’s ventral wing and tail membranes. We found that ventral wing hair depilation significantly impaired the bat’s prey-capture performance. Interestingly, ventral wing hair depilation also produced increases in the bat’s flight speed, an effect previously attributed exclusively to airflow sensing along the dorsal wing surface. These findings demonstrate that microscopic hairs embedded in the ventral wing and tail membranes of insectivorous bats provide mechanosensory feedback for prey handling and flight control.","PeriodicalId":15397,"journal":{"name":"Journal of Comparative Physiology A","volume":"297 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138690489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A formative journal for a formative career: a personal recollection of how JCPA has inspired and guided my research life 职业生涯的成长日志：个人回忆：JCPA 如何启发和指导我的研究生活

Journal of Comparative Physiology A Pub Date : 2023-12-11 DOI: 10.1007/s00359-023-01683-1

Eric J. Warrant

引用次数: 0

Acknowledgement to referees 向裁判员致谢

Journal of Comparative Physiology A Pub Date : 2022-11-23 DOI: 10.1007/s003590100224

Not Available Not Available

引用次数: 0

Five papers that defined the course of history of neuroscience 五篇论文定义了神经科学的历史进程

Journal of Comparative Physiology A Pub Date : 2022-06-27 DOI: 10.1007/s00359-022-01558-x

G. Zupanc

引用次数: 0