Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology最新文献

Photoperiodic plasticity of pigment-dispersing factor immunoreactive fibers projecting toward prothoracicotropic hormone neurons in flesh fly Sarcophaga similis larvae. 肉蝇幼虫向前致胸激素神经元投射的色素分散因子免疫反应纤维的光周期可塑性。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-15 DOI: 10.1007/s00359-024-01729-y

Yutaro Ohe, Masaharu Hasebe, Yoshitaka Hamanaka, Shin G Goto, Sakiko Shiga

{"title":"Photoperiodic plasticity of pigment-dispersing factor immunoreactive fibers projecting toward prothoracicotropic hormone neurons in flesh fly Sarcophaga similis larvae.","authors":"Yutaro Ohe, Masaharu Hasebe, Yoshitaka Hamanaka, Shin G Goto, Sakiko Shiga","doi":"10.1007/s00359-024-01729-y","DOIUrl":"https://doi.org/10.1007/s00359-024-01729-y","url":null,"abstract":"Larvae of the flesh fly, Sarcophaga similis exhibit photoperiodic responses to control pupal diapause. Although the external coincidence model is applicable to S. similis photoperiodism, it remains unknown how the circadian clock system integrates day-length information. To explore the mechanisms, we examined the neural circuitry involving circadian clock lateral neurons (LNs) and prothoracicotropic hormone (PTTH) neurons. We also examined the photoperiodic effects on LN-fiber patterns in third-instar S. similis larvae. Immunohistochemistry showed that the clock protein PERIOD and the neuropeptide pigment-dispersing factor (PDF) were co-localized in four cells per brain hemisphere, and we named these PDF-LNs of S. similis. Single-cell polymerase chain reaction of backfilled neurons from the ring gland showed that two pairs of pars lateralis neurons with contralateral axons (PL-c neurons) to the ring gland expressed ptth. Double labeling with immunohistochemistry and backfills revealed that PDF-immunoreactive varicose fibers projected close to fibers from PL-c neurons. short neuropeptide f (snpf) receptor and glutamate-gated chloride channel but not pdf receptor were expressed in PL-c neurons. sNPF and L-glutamate but not PDF acutely inhibited the spontaneous firing activity of PL-c neurons. The number of PDF-immunoreactive varicosities of PDF-LNs in the dorsal protocerebrum was significantly higher under short-day than that under long-day conditions in a time-dependent manner. These results suggest that sNPF and/or glutamate signaling to PTTH neurons and PDF-LNs form a potential neural circuity for the photoperiodic control of pupal diapause and that photoperiod modifies the connectivity strength between PDF-LNs and their post- or pre-neurons in the circuitry.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142985480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The cold tolerance of the terrestrial slug, Ambigolimax valentianus. 陆生蛞蝓的耐寒性。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-11 DOI: 10.1007/s00359-025-01730-z

Lauren T Gill, Hiroko Udaka, Katie E Marshall

{"title":"The cold tolerance of the terrestrial slug, Ambigolimax valentianus.","authors":"Lauren T Gill, Hiroko Udaka, Katie E Marshall","doi":"10.1007/s00359-025-01730-z","DOIUrl":"https://doi.org/10.1007/s00359-025-01730-z","url":null,"abstract":"Terrestrial molluscs living in temperate and polar environments must contend with cold winter temperatures. However, the physiological mechanisms underlying the survival of terrestrial molluscs in cold environments and the strategies employed by them are poorly understood. Here we investigated the cold tolerance of Ambigolimax valentianus, an invasive, terrestrial slug that has established populations in Japan, Canada, and Europe. To do this, we acclimated A. valentianus to different environmental conditions (differing day lengths and temperatures), then exposed them to sub-zero temperatures and measured overall survival. Then, we measured low molecular weight metabolites using 1H NMR to see if they play a role in their cold tolerance as they do in other invertebrate species. We found that A. valentianus is not strongly freeze tolerant but does become more cold-hardy after acclimation to shorter day lengths. We also found that no metabolites were strongly upregulated in response to winter conditions despite the change in cold hardiness, and instead saw evidence of metabolic suppression leading up to winter such as formate and L-glutamine being suppressed in winter conditions.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142967355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Male seminal fluid allocation according to socio-sexual context in the South American fruit fly. 南美果蝇社会性别背景下的雄性精液分配。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-01-07 DOI: 10.1007/s00359-024-01728-z

Antonella Giudice, Gisela Castillo, Viviana Díaz, Andrea Moyano, Alfonsina Palladini, Diana Pérez-Staples, Carolina de Lourdes Olea, Solana Abraham

{"title":"Male seminal fluid allocation according to socio-sexual context in the South American fruit fly.","authors":"Antonella Giudice, Gisela Castillo, Viviana Díaz, Andrea Moyano, Alfonsina Palladini, Diana Pérez-Staples, Carolina de Lourdes Olea, Solana Abraham","doi":"10.1007/s00359-024-01728-z","DOIUrl":"https://doi.org/10.1007/s00359-024-01728-z","url":null,"abstract":"During copulation male insects transfer sperm and seminal fluids, including accessory gland proteins (Acps) to females, produced in the accessory glands (AGs). These Acps influence female behavior and physiology, inhibiting sexual receptivity, promoting ovulation and/or oviposition. The theory of ejaculate allocation postulates that production is costly; therefore, males strategically allocate ejaculates based on perception of sperm competition and quality and availability of females. The objective of this study was to determine in the South American fruit fly Anastrepha fraterculus whether there is differential allocation of Acps by males under different social contexts: (i) presence or absence of males in the mating arena (male social context), (ii) presence/absence of females in the mating arena (female social context), and (iii) female condition (sugar-fed/protein-fed). This was inferred through female behavior (fecundity, fertility and remating) and the dynamics of the reduction in male AGs size and protein content after copulation. No effect was observed from the various social contexts perceived by males on female's fecundity, fertility, or remating. Mated males had less protein in their AGs compared to unmated males. Male social context affected AG size after copulation: there was a marked decrease in AG size in males which mated in the presence of rival males; moreover, males mated under competition had lower protein content in their AGs than males mating without competition, suggesting that males can adjust seminal fluid quantity depending on social-mating context, although this difference did not impact the physiology and behavior of females after copulation. Our results also indicate that AG size and protein content are correlated.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142959063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Essential and nonessential fatty acid composition and use in overwintering monarch butterflies. 越冬帝王蝶必需脂肪酸和非必需脂肪酸的组成和使用。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2024-12-21 DOI: 10.1007/s00359-024-01727-0

Libesha Anparasan, Matthias Pilecky, M Isabel Ramirez, Keith A Hobson, Martin J Kainz, Leonard I Wassenaar

{"title":"Essential and nonessential fatty acid composition and use in overwintering monarch butterflies.","authors":"Libesha Anparasan, Matthias Pilecky, M Isabel Ramirez, Keith A Hobson, Martin J Kainz, Leonard I Wassenaar","doi":"10.1007/s00359-024-01727-0","DOIUrl":"https://doi.org/10.1007/s00359-024-01727-0","url":null,"abstract":"Monarch butterflies (Danaus plexippus) undertake one of the most remarkable long-distance insect migrations, travelling thousands of kilometres to overwinter in the central trans-volcanic belt of Mexico. This study explored how monarch butterflies use essential fatty acids (EFA) and nonessential fatty acids (NFA) during overwintering. We collected 150 (male/female) butterflies from the Sierra Chincua wintering colony from the time of arrival (December 2022) to before departure (February 2023) and analysed their lipid content. Our findings revealed that although females have a higher mass fraction of lipids, male and female monarch butterflies depleted their lipids similarly over time, resulting in low abdominal lipid mass fractions by late February. NFA, including oleic and palmitic acid, were predominantly used for energy during overwintering by male and female butterflies. In contrast, the EFA alpha-linolenic and linoleic acids, critical for reproductive success and cellular functions, were conserved in both sexes. Males began the overwintering period with a higher mass fraction of EFA in the polar components of the head and thorax, which may impact the degree of cold acclimation of these tissues during this period. Strategic lipid utilisation, prioritising the preservation of EFA over NFA and optimizing overwintering survival probably enhance readiness for spring remigration and reproduction. This differential fatty acid use underscores the delicate balance monarch butterflies maintain to survive overwintering and highlights the potential impacts of environmental changes on their lipid dynamics and survival.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142873468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vector-based navigation in desert ants: the significance of path-integration vectors. 基于矢量的沙漠蚂蚁导航：路径积分矢量的意义。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2024-12-03 DOI: 10.1007/s00359-024-01725-2

Beatrice Voegeli, Stefan Sommer, Markus Knaden, Rüdiger Wehner

{"title":"Vector-based navigation in desert ants: the significance of path-integration vectors.","authors":"Beatrice Voegeli, Stefan Sommer, Markus Knaden, Rüdiger Wehner","doi":"10.1007/s00359-024-01725-2","DOIUrl":"https://doi.org/10.1007/s00359-024-01725-2","url":null,"abstract":"In the longstanding discussion of whether insects, especially central place foragers such as bees and ants, use metric representations of their landmark surroundings (so-called \"cognitive maps\"), the ability to find novel shortcuts between familiar locations has been considered one of the most decisive proofs for the use of such maps. Here we show by channel-based field experiments that desert ants Cataglyphis can travel such shortcuts between locations (defined by memorized goal vectors) just on the basis of path integration. When trained to visit two spatially separated feeders A and B they later travel the hitherto novel route A→B. This behavior may originate from the interaction of goal vectors retrieved from long-term memory and the current vector computed by the continuously running path integrator. Based on former experiments, we further argue that path integration is a necessary requirement also for acquiring landmark information (in form of learned goal-directed views). This emphasizes the paramount importance of path integration in these central place foragers. Finally we hypothesize that the ant's overall system of navigation consists in the optimal combination of path-integration vectors and view-based vectors, and thus handles and uses vectorial information without the need of constructing a \"vector map\", in which vectors are linked to known places in the environment others than to the origin of all journeys, the nest.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142774910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Werner Nachtigall (1934-2024). 维尔纳-纳赫蒂加尔（1934-2024）。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2024-11-26 DOI: 10.1007/s00359-024-01726-1

Reinhard Blickhan

引用次数: 0

Do wild-caught fly larvae cooperatively forage? 野生捕获的苍蝇幼虫会合作觅食吗？

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2024-11-26 DOI: 10.1007/s00359-024-01724-3

Rives Kuhar, Madeline Williamson, Peyton Yee, Guzel Naik, Sean Michael Cursain, Barry Condron

{"title":"Do wild-caught fly larvae cooperatively forage?","authors":"Rives Kuhar, Madeline Williamson, Peyton Yee, Guzel Naik, Sean Michael Cursain, Barry Condron","doi":"10.1007/s00359-024-01724-3","DOIUrl":"https://doi.org/10.1007/s00359-024-01724-3","url":null,"abstract":"Animals often form organized cooperative foraging groups, where individual members must adhere to specific rules to maintain cohesiveness. These groups face the challenge of managing potential intruders, who may or may not assist in foraging. In semi-liquid food environments, Drosophila larvae learn to synchronize their movements into clusters, which are thought to make feeding more efficient. Individuals who do not synchronize with the group are excluded from the cluster. Whether clustering behavior occurs in wild-caught larvae, and if so, the extent of their selectivity in group membership, remains unknown. Here, we show that clustering occurs across a number of fly species, and the capacity to join different clusters varies both between and within species. We collected and observed a larval cluster from rotting fruit in the field, yielding seven fly species. Subsequent tests for clustering on five lines from this collection and 20 other inbred wild-caught lines revealed that all species, except D. suzukii, exhibit clustering behavior. Each line demonstrates varying capacities to become members of different clusters. This study also indicates that there is high genetic variance in how individual lines cluster with each other that is not explained by cross species features. Additionally, combinations of wild species with lab benchmark strains give varied outcomes in resultant adult fitness. The ability to co-cluster varies between and within species boundaries. However, fly lines that cluster with another tend to impart fitness both to themselves and their host. Our findings demonstrate that multiple species of fly larvae can co-cluster. This behavior tends to confer mutual benefits to cluster members, suggesting significant ecological implications in Drosophila communities.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142717820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel nerve regeneration assessment method using adult zebrafish with crush spinal cord injury. 利用挤压脊髓损伤的成年斑马鱼进行神经再生评估的新方法。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2024-11-12 DOI: 10.1007/s00359-024-01723-4

Hiroaki Motohashi, Satoshi Sugita, Yoshito Hosokawa, Takahiro Hasumura, Shinichi Meguro, Noriyasu Ota, Yoshihiko Minegishi

{"title":"Novel nerve regeneration assessment method using adult zebrafish with crush spinal cord injury.","authors":"Hiroaki Motohashi, Satoshi Sugita, Yoshito Hosokawa, Takahiro Hasumura, Shinichi Meguro, Noriyasu Ota, Yoshihiko Minegishi","doi":"10.1007/s00359-024-01723-4","DOIUrl":"https://doi.org/10.1007/s00359-024-01723-4","url":null,"abstract":"Zebrafish (Danio rerio), an alternative to rodents, are widely used in neurological, genetic, and toxicology research. The zebrafish larval spinal cord injury model has been used in neural mechanistic analyses owing to its high regenerative capacity and throughput; however, it also had several limitations in imitating rodents. Therefore, we investigated the use of adult zebrafish as an alternative model to rodents for evaluating nerve regeneration. Here, we established a novel spinal cord regeneration evaluation method, which was based on the maximum swimming speed of adult zebrafish in a custom-built hydrodynamic-based aquarium. The spinal cords of adult male zebrafish were crushed using forceps, and maximum swimming speed and histological spinal cord regeneration were evaluated. Spinal cord-injured zebrafish showed a significant decline in motor function, followed by recovery at 3 weeks postoperatively, accompanied by histological regeneration. Spinal cord regeneration can be indirectly assessed by monitoring maximum swimming speed. They were also fed a diet containing fig extract, which can promote peripheral nerve regeneration; they were fed daily starting 1 week before the operation. Maximum swimming speed was measured time-dependently until 3 weeks postoperatively. Fig-consuming fish showed improved recovery of maximum swimming speed compared to the controls, which was consistent with the histological analysis. In summary, we established a spinal cord regeneration assessment system using adult zebrafish in a customized aquarium, which enables researchers to evaluate spinal cord regeneration in adult zebrafish similar to that of rodent experiments, contributing to faster and easier screening of neuroregenerative technology.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142632959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shelter selection in females of two scorpion species depends on shelter size and scent. 两种蝎子的雌性蝎子对庇护所的选择取决于庇护所的大小和气味。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2024-11-02 DOI: 10.1007/s00359-024-01721-6

Janina Hladik, Yorick Bailer, Harald Wolf, Torben Stemme

{"title":"Shelter selection in females of two scorpion species depends on shelter size and scent.","authors":"Janina Hladik, Yorick Bailer, Harald Wolf, Torben Stemme","doi":"10.1007/s00359-024-01721-6","DOIUrl":"https://doi.org/10.1007/s00359-024-01721-6","url":null,"abstract":"Shelter selection is an important task in an animal's life. Concerning scorpions, little is known on the evaluation of potential shelters and the importance of chemosensation. To address these issues, we conducted a two-choice shelter test in rectangular open field arenas to identify properties rendering shelters attractive for female scorpions of the species E. italicus and M. eupeus. Shelters varied in size (large, small) and scent (none, conspecific: male or female, attractive: prey, aversive: rosemary oil). Contact with the shelters was video-recorded under red light for 13 h, including the whole night phase. Results revealed a preference for larger shelters, with conspecific scent having minor or no influence. Striking differences occurred with regard to prey and rosemary oil scents. Prey scent was more attractive to M. eupeus, while rosemary oil did not act as a repellent. E. italicus was not very attracted by prey scent, but was repelled by rosemary oil. These findings might reflect the different habitats, semi-arid vs. Mediterranean climates: prey and rosemary are scarce in the semi-arid climate (habitat of M. eupeus), whereas they are abundant in the Mediterranean climate (habitat of E. italicus). We carried out impairment experiments to identify the main sensory organs responsible for the above observations. These are the pectines and pedipalps which function as mechano- and chemosensors. Scorpions could not detect size nor scent properly when either their pectines or pedipalps were impaired.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142564033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A versatile recording device for the analysis of continuous daily external activity in colonies of highly eusocial bees. 一种多功能记录装置，用于分析高度群居蜜蜂每天持续的外部活动。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2024-11-01 Epub Date: 2024-06-20 DOI: 10.1007/s00359-024-01709-2

Arthur Roque Justino, Klaus Hartfelder

{"title":"A versatile recording device for the analysis of continuous daily external activity in colonies of highly eusocial bees.","authors":"Arthur Roque Justino, Klaus Hartfelder","doi":"10.1007/s00359-024-01709-2","DOIUrl":"10.1007/s00359-024-01709-2","url":null,"abstract":"As pollinators, bees are key to maintaining the biodiversity of angiosperm plants, and for agriculture they provide a billion-dollar ecosystem service. But they also compete for resources (primarily nectar and pollen), especially the highly social bees that live in perennial colonies. So, how do they organize their daily temporal activities? Here, we present a versatile, low-cost device for the continuous, automatic recording and data analysis of the locomotor activity in the colony-entrance tube of highly eusocial bees. Consisting of an in-house built block containing an infrared detector, the passage of bees in the colony entrance tunnel is registered and automatically recorded in an Arduino environment, together with concomitant recordings of temperature and relative humidity. With a focus on the highly diverse Neotropical stingless bees (Meliponini), we obtained 10-day consecutive recordings for two colonies each of the species Melipona quadrifasciata and Frieseomelitta varia, and also for the honey bee. The Lomb-Scargle periodogram analysis identified a predominant circadian rhythmicity for all three species, but also indications of ultradian rhythms. For M. quadrifasciata, which is comparable in size to the honey bee, we found evidence for a possibly anticipatory activity already before sunrise. As all three species also presented activity at night in the colony entrance tube, this also raises questions about sleep organization in social insects. The cost and versatility of the device and the open-source options for data analysis make this an attractive system for conducting studies on circadian rhythms in social bees under natural conditions, complementing studies on flower visits by these important pollinators.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"885-900"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141428354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0