Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology最新文献_第2页

Is it a bat or a male? A female moth (Syntomeida epilais, Lepidoptera: Erebidae: Arctiinae) adapts its acoustic signals for defense or courtship. 它是一只蝙蝠还是一只雄性？一只雌蛾（斑蛾，鳞翅目：斑蛾科：斑蛾科）利用其声音信号进行防御或求偶。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-05-01 Epub Date: 2025-03-27 DOI: 10.1007/s00359-025-01739-4

Frank Coro

{"title":"Is it a bat or a male? A female moth (Syntomeida epilais, Lepidoptera: Erebidae: Arctiinae) adapts its acoustic signals for defense or courtship.","authors":"Frank Coro","doi":"10.1007/s00359-025-01739-4","DOIUrl":"10.1007/s00359-025-01739-4","url":null,"abstract":"Courtship behavior in the polka-dot wasp moth Syntomieda epilais is the most elaborate acoustic communication system known in the Erebidae. Both males and females must emit their acoustic signals for successful mating under natural conditions in the presence of insectivorous echolocating bats. I stimulated ninety-two females S. epilais during their courtship period (between 2:30 and 6:30 am) with playback of conspecific male and female signals and of the Mexican free-tailed bat (Tadarida brasiliensis) attack sequence. I recorded the acoustic responses of the tested females. On the third night after eclosion, at the initiation of courtship behavior, females discriminate among these three types of acoustic trains, responding preferentially to conspecific male signals. In contrast, during the first two nights after eclosion, they respond strongly to the bat attack sequence but not to conspecific male signals. I also demonstrate that after mating (six nights after eclosion) female moths stop responding to conspecific male signals, while continuing to respond to the bat attack pulse-train. These, as well as other novel observations suggest that these female moths can modulate their acoustic signals according to the stimulating conditions for defense against bats or courtship, by varying their response thresholds and latencies.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"357-374"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143722671","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

Path integration and optic flow in flying insects: a review of current evidence. 飞虫的路径整合和光流：现有证据综述。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-05-01 Epub Date: 2025-03-07 DOI: 10.1007/s00359-025-01734-9

Martin Egelhaaf, Jens P Lindemann

{"title":"Path integration and optic flow in flying insects: a review of current evidence.","authors":"Martin Egelhaaf, Jens P Lindemann","doi":"10.1007/s00359-025-01734-9","DOIUrl":"10.1007/s00359-025-01734-9","url":null,"abstract":"Path integration is a key navigation mechanism used by many animals, involving the integration of direction and distance of path segments to form a goal vector that allows an animal to return directly to its starting point. While well established for animals walking on solid ground, evidence for path integration in animals moving without ground contact, such as flying insects, is less clear. The review focuses on flying Hymenoptera, particularly bees, which are extensively studied. Although bees can use flight distance and direction information, evidence for genuine path integration is limited. Accurately assessing distance travelled is a major challenge for flying animals, because it relies on optic flow-the movement of visual patterns across the eye caused by locomotion. Optic flow depends on both the animal's speed and the spatial layout of the environment, making it ambiguous for precise distance measurement. While path integration is crucial for animals like desert ants navigating sparse environments with few navigational cues, we argue that flying Hymenopterans in visually complex environments, rich in objects and textures, rely on additional navigational cues rather than precise path integration. As they become more familiar with an environment, they may iteratively refine unreliable distance estimates derived from optic flow. By combining this refined information with directional cues, they could determine a goal vector and improve their ability to navigate efficiently between key locations. In the case of honeybees, this ability also enables them to communicate these refined goal vectors to other bees through the waggle dance.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"375-401"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12081508/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143574632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flupyradifurone, imidacloprid and clothianidin disrupt the auditory processing in the locust CNS. 氟吡地黄酮、吡虫啉和噻虫胺破坏了蝗虫中枢神经系统的听觉处理。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-05-01 Epub Date: 2025-02-13 DOI: 10.1007/s00359-025-01735-8

Marcelo Christian, Michelle Kraft, Paul Wilknitz, Manuela Nowotny, Stefan Schöneich

{"title":"Flupyradifurone, imidacloprid and clothianidin disrupt the auditory processing in the locust CNS.","authors":"Marcelo Christian, Michelle Kraft, Paul Wilknitz, Manuela Nowotny, Stefan Schöneich","doi":"10.1007/s00359-025-01735-8","DOIUrl":"10.1007/s00359-025-01735-8","url":null,"abstract":"Since the EU banned classic neonicotinoids like imidacloprid and clothianidin, they may be replaced by more recently marketed insecticides such as flupyradifurone. However, they all operate on the same neuropharmacological principle as selective agonists at the insect's nicotinic acetylcholine receptors. Here we investigated the impact of flupyradifurone, imidacloprid and clothianidin on the neuronal processing in the auditory pathway of the desert locust Schistocerca gregaria. While stepwise increasing the insecticide concentration in the haemolymph, we extracellularly recorded the spike responses of auditory afferents in the tympanal nerve and of auditory interneurons in the neck connectives. All three insecticides showed a very similar dose-dependent suppression of spike responses in the auditory interneurons ascending towards the brain, whereas the spike responses in the sensory neurons of the ears appeared unaffected. Furthermore, by systematic injection experiments we demonstrate that insecticide dosages which already supress the information transfer in the auditory pathway are by far too low to induce the typical poisoning symptoms like trembling, spasms, and paralysis. We discuss how sublethal intoxication with classical neonicotinoids or functionally related insecticides like flupyradifurone may disrupt the postsynaptic balance between excitation and inhibition in the auditory pathway of locusts and other orthopteran insects.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"311-325"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12081486/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143411564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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 : 2025-05-01 Epub 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":"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":"261-276"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12081506/pdf/","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":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative analysis of the structure and crystallin composition of the lenses of freshwater fish and gastropods with respect to their vision. 淡水鱼与腹足类动物晶状体结构及晶体组成之比较分析。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-05-01 Epub Date: 2025-03-06 DOI: 10.1007/s00359-025-01737-6

Anastasia I Kapitunova, Irina N Dominova, Maria V Volkanesku, Vitalii D Salnikov, Anna A Kundalevich, Valery V Zhukov

{"title":"Comparative analysis of the structure and crystallin composition of the lenses of freshwater fish and gastropods with respect to their vision.","authors":"Anastasia I Kapitunova, Irina N Dominova, Maria V Volkanesku, Vitalii D Salnikov, Anna A Kundalevich, Valery V Zhukov","doi":"10.1007/s00359-025-01737-6","DOIUrl":"10.1007/s00359-025-01737-6","url":null,"abstract":"The structural organisations of the lenses of the pikeperch Sander lucioperca and the whitefish Coregonus lavaretus as well as of the pond snail Lymnaea stagnalis and the apple gold snail Pomacea canaliculata were studied by phase contrast microscopy, scanning electron microscopy and Raman spectroscopy. All microscopical examinations were based on 70 um thick lens sections, whereas spectral measurements were performed on whole crystalline lens. The lenses of S. lucioperca and C. lavaretus are characterised by a well-defined dense central region and layer-by-layer arrangement of substance in the form of concentric rings. The serrated shape of the membranes of their anucleate fibre cells suggests the formation of ball-and-socket contacts between them. The substance of the acellular lens of L. stagnalis and P. canaliculata appears to be homogeneous, but shows signs of a layer-by-layer formation. The lens of L. stagnalis exhibits weakly expressed peripheral ring structures, while optical heterogeneity in P. canaliculata is represented by a centrally located, indistinctly shaped nucleus. The Raman spectra of light scattering by the lens material of studied hydrobionts are fundamentally similar. Differences in the position and intensity of individual peaks may be explained by variations in the secondary structure of crystallin molecules, as well as the physical and chemical properties of the lens crystallins identified by polymerase chain reaction (PCR). PCR-based search for crystallin gene transcripts identified three lens-specific γ-crystallins (XM_031316242.2, XM_031292083.2, XM_031293803.2) in S. lucioperca. For the first time, the presence of Alpha-crystallin A chain-like and S-crystallin 4-like gene transcripts in the eyestalk of P. canaliculata was demonstrated.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"339-355"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143568865","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

Photoperiod-driven testicular DNA methylation in gonadotropin and sex steroid receptor promoters in Siberian hamsters. 西伯利亚仓鼠促性腺激素和性类固醇受体启动子的光周期驱动睾丸DNA甲基化。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-05-01 Epub Date: 2025-02-15 DOI: 10.1007/s00359-025-01733-w

Irem Denizli, Ana Monteiro, Kathryn R Elmer, Tyler J Stevenson

{"title":"Photoperiod-driven testicular DNA methylation in gonadotropin and sex steroid receptor promoters in Siberian hamsters.","authors":"Irem Denizli, Ana Monteiro, Kathryn R Elmer, Tyler J Stevenson","doi":"10.1007/s00359-025-01733-w","DOIUrl":"10.1007/s00359-025-01733-w","url":null,"abstract":"Seasonal cycles in breeding, often orchestrated by annual changes in photoperiod, are common in nature. Here, we studied how change in photoperiod affects DNA methylation in the testes of a highly seasonal breeder: the Siberian hamster (Phodopus sungorus). We hypothesized that DNA methylation in promoter regions associated with key reproductive genes such as follicle-stimulating hormone receptor in the testes is linked to breeding and non-breeding states. Using Oxford Nanopore sequencing, we identified more than 10 million (10,151,742) differentially methylated cytosine-guanine (CpG) sites in the genome between breeding long photoperiod and non-breeding short photoperiod conditions. ShinyGo enrichment analyses identified biological pathways consisting of reproductive system, hormone-mediated signalling and gonad development. We found that short photoperiod induced DNA methylation in the promoter regions for androgen receptor (Ar), estrogen receptors (Esr1, Esr2), kisspeptin1 receptor (kiss1r) and follicle-stimulating hormone receptor (Fshr). Long photoperiods were observed to have higher DNA methylation in promoters for basic helix-loop-helix ARNT-like 1 (Bmal1), progesterone receptor (Pgr) and thyroid-stimulating hormone receptor (Tshr). Our findings provide insights into the epigenetic mechanisms underlying seasonal adaptations in timing reproduction in Siberian hamsters and could be informative for understanding male fertility and reproductive disorders in mammals.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"327-337"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12081511/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143426820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrophysiological and behavioral responses of elongated solifuge sensilla to mechanical stimuli. 细长孤立感器对机械刺激的电生理和行为反应。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-05-01 Epub Date: 2025-02-05 DOI: 10.1007/s00359-025-01731-y

Pallabi Kundu, Mariela Oviedo-Diego, Franco Cargnelutti, R Ryan Jones, Erika Garcia, Eileen A Hebets, Douglas D Gaffin

{"title":"Electrophysiological and behavioral responses of elongated solifuge sensilla to mechanical stimuli.","authors":"Pallabi Kundu, Mariela Oviedo-Diego, Franco Cargnelutti, R Ryan Jones, Erika Garcia, Eileen A Hebets, Douglas D Gaffin","doi":"10.1007/s00359-025-01731-y","DOIUrl":"10.1007/s00359-025-01731-y","url":null,"abstract":"A fundamental understanding of animal sensory systems is crucial for comprehending their interactions with the environment and with other conspecifics. However, knowledge gaps persist, particularly in arachnids like the order Solifugae. While certain solifuge setae and palpal papillae have been studied structurally and electrophysiologically, providing evidence of chemoreception and mechanoreception, the sensilla on their walking legs remain unexplored. Notably, elongated sensilla on the femur and tibia of the 4th walking legs resemble trichobothria in other arachnid orders yet their function remains unknown. Thus, this study investigates whether these sensilla serve a mechanosensory function. Using electrophysiological and behavioral assays on Eremobates pallipes (Eremobatidae), we assessed the response of the elongated 4th leg sensilla to- (i) air particle movement and- (ii) air pressure changes. Air particle movement stimuli were generated using a speaker placed in the near field of the elongated sensilla that emitted low-frequency pure tones (10-1000 Hz). Air pressure stimuli involved forceful blowing on the sensilla. No response to air particle movement was observed, but a mechanosensory response to air pressure stimuli was detected. Electrophysiological data identified a fast-adapting and fast-recovering cell, and behavioral observations revealed a startle response. Our electrophysiology results suggest a mechanosensory role of elongated sensilla on the 4th walking legs of solifuge, indicating that although they are not sensitive enough to detect air particle movement stimuli, they can receive and respond to air pressure stimuli. Our behavioral experiments similarly show that these sensilla are not sensitive enough to detect air particle movement but respond to more forceful mechanosensory stimuli.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":"277-292"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12081520/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143257246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dietary carotenoids enhance SWS1 expression in female western mosquitofish (Gambusia affinis) but do not impair their likelihood of pregnancy in the presence of male guppy. 饮食中的类胡萝卜素增强了雌性西蚊鱼（Gambusia affinis）中SWS1的表达，但在雄性孔雀鱼存在的情况下，不影响它们怀孕的可能性。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-04-29 DOI: 10.1007/s00359-025-01741-w

Yu-Chun Wang, I-Pei Kao, Chia-Hao Chang

{"title":"Dietary carotenoids enhance SWS1 expression in female western mosquitofish (Gambusia affinis) but do not impair their likelihood of pregnancy in the presence of male guppy.","authors":"Yu-Chun Wang, I-Pei Kao, Chia-Hao Chang","doi":"10.1007/s00359-025-01741-w","DOIUrl":"https://doi.org/10.1007/s00359-025-01741-w","url":null,"abstract":"The various cone opsin genes are responsible for distinct ecological tasks, with the altered expression profiles in teleost fishes representing an excellent paradigm for studying how fishes can quickly adapt to diverse habitats within their lifecycles. The molecular mechanisms underlying transcriptional switching among cone opsin genes are still being investigated, but factors such as light conditions, developmental stages, sex hormones, and diet are known to play a role in changing cone opsin expression profiles. Based on previous research on guppies, we hypothesized that a diet rich in carotenoids could enhance expression of the opsin gene LWS in western mosquitofish (Gambusia affinis) and potentially influence female mate choice. We raised female western mosquitofish under low-level or high-level carotenoid diets and then conducted female mating preference experiments, with or without the presence of male guppy (Poecilia reticulata). qPCR revealed that high carotenoid intake upregulates SWS1 rather than LWS transcription. This positive feedback loop may promote foraging efficiency and also protect the visual system from UV damage. The carotenoid diets had no effect on pregnancy likelihood, possibly because UV light is not a critical cue in western mosquitofish female mate choice and/or the light source we used did not encompass the UV spectrum. Presence of male guppies had no effect on pregnancy likelihood, though a previous study reported that it significantly reduced brood size. Therefore, interactions between male guppies and western mosquitofish likely reduces the number of copulations and/or disrupts parenting to reduce the number of offspring.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144058371","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 relative landmark shift during free movement on a treadmill may enhance visual learning for ant foragers. 在跑步机上自由运动时的相对里程碑式移动可能会增强觅食蚁的视觉学习能力。

IF 1.9 4区心理学

Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology Pub Date : 2025-03-28 DOI: 10.1007/s00359-025-01738-5

Akihiro Takahara, Tomoko Sakiyama

{"title":"The relative landmark shift during free movement on a treadmill may enhance visual learning for ant foragers.","authors":"Akihiro Takahara, Tomoko Sakiyama","doi":"10.1007/s00359-025-01738-5","DOIUrl":"https://doi.org/10.1007/s00359-025-01738-5","url":null,"abstract":"Ants are known for their sophisticated navigational abilities and rely on various cues to locate food sources efficiently. Visual landmarks play a crucial role in guiding foraging behavior. However, the significance of walking ants perceiving the relative motion of a landmark to themselves during learning is still not fully understood. Here, Japanese carpenter ants were observed on a treadmill device where they could walk in place on the treadmill. Two types of conditions were set for the training process: the fixed condition involved a stationary landmark, and the moving condition featured a landmark oscillating at a constant speed from side to side after feeding, which was independent of the movements of the ants. In the Y-maze test, a significantly greater number of ants in the moving training condition associated the landmark with food (82% of the ants) than in the fixed training condition (56% of the ants). Our results thus suggest that perceiving the relative movement of landmarks during the learning process on a treadmill is important for ant foragers.","PeriodicalId":54862,"journal":{"name":"Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736175","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 : 2025-03-01 Epub 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":"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":"235-245"},"PeriodicalIF":1.9,"publicationDate":"2025-03-01","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