Journal of Ethology最新文献

A theory of spawning habitat selection in anurans 无尾类产卵栖息地选择理论

IF 0.9 4区生物学

Journal of Ethology Pub Date : 2024-09-05 DOI: 10.1007/s10164-024-00824-6

Minoru Goto, Hiroshi Ikeda, Gaku Takimoto

{"title":"A theory of spawning habitat selection in anurans","authors":"Minoru Goto, Hiroshi Ikeda, Gaku Takimoto","doi":"10.1007/s10164-024-00824-6","DOIUrl":"https://doi.org/10.1007/s10164-024-00824-6","url":null,"abstract":"Field and experimental evidence shows that anuran adults selecting spawning habitats make flexible, context-dependent choices based on multiple biotic and abiotic factors. Despite the empirical evidence, few formal theories explain the context-dependent selection of spawning habitats by anurans. To fill this gap, we develop a mathematical model to analyze the interacting effects of multiple biotic and abiotic factors on anuran spawning habitat selection. Our model considers the effects of habitat quality (e.g., resource levels, heterospecific predator abundances, and other abiotic conditions), spawning timing within a reproductive season, strength of conspecific competition among juveniles, and strength of conspecific predation of early hatching on late hatching juveniles. The model predicts that while early-spawning adults generally favor better-quality habitats, late-spawning adults may not necessarily prefer better-quality habitats. Predation of late-hatching juveniles by early-hatching juveniles promotes the avoidance of better-quality habitats by late-spawning adults. Stronger competition among juveniles of the same developmental age increases the preference of late-spawning adults toward better-quality habitats. These predictions are in broad agreement with empirical evidence. Our model demonstrates that the tension between habitat quality and negative conspecific interactions among juveniles drives the context-dependent selection of spawning habitats by anuran adults.","PeriodicalId":54837,"journal":{"name":"Journal of Ethology","volume":"62 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Subterranean to submarine: stress-induced locomotor repertoire expansion and aquatic escape in the Anatolian mole rat (Nannospalax xanthodon) under risk of predation 从地下到海底：安纳托利亚鼹鼠（Nannospalax xanthodon）在捕食风险下的应激诱导运动剧目扩展和水生逃逸

IF 0.9 4区生物学

Journal of Ethology Pub Date : 2024-08-11 DOI: 10.1007/s10164-024-00823-7

Yiannis G. Zevgolis, Stavroula Zotou, Aristeidis Iliou, Apostolos Christopoulos

引用次数: 0

Risk-taking behavior in birds foraging along interurban roads 鸟类在城际公路上觅食时的冒险行为

IF 0.9 4区生物学

Journal of Ethology Pub Date : 2024-08-07 DOI: 10.1007/s10164-024-00822-8

Oumayma Dhiab, Marcello D’Amico, Jihen Boukhriss, Slaheddine Selmi

{"title":"Risk-taking behavior in birds foraging along interurban roads","authors":"Oumayma Dhiab, Marcello D’Amico, Jihen Boukhriss, Slaheddine Selmi","doi":"10.1007/s10164-024-00822-8","DOIUrl":"https://doi.org/10.1007/s10164-024-00822-8","url":null,"abstract":"Roads provide attractive but dangerous habitats for a wide variety of wild animals, including granivorous species feeding on road-spilled grains. The survival of those animals would imply risk-taking behaviors toward vehicles. We investigated these behaviors in a southern Tunisian crested lark (Galerida cristata) population, by using the flight and tolerance distances of flushed birds as assessments of motivation to take risks. Crested larks foraging on the roadside tolerated more risk compared to those foraging in road-free areas, which could reflect possible habituation of roadside individuals to road traffic. Moreover, crested larks tolerated closer approaches when they were in larger flocks, probably due to increased risk dilution and/or scramble competition. Finally, the studied birds took more risks in summer compared to winter, which could result from reduced time available for foraging during the hot season, or reflect a possible age effect since summer birds included many less-experienced fledglings, among other possible explanations. In sum, our findings highlight that roadside life imposes behavioral adjustments on seed-eating birds, and that seasonal effects may greatly affect birds’ behavioral responses to road-associated threats.","PeriodicalId":54837,"journal":{"name":"Journal of Ethology","volume":"3 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141947065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Reduced fitness in losers of leg-biting male combat compared to uncontested males in Zophobas atratus 咬腿雄性搏斗失败者的体能低于未搏斗雄性搏斗失败者的体能

IF 0.9 4区生物学

Journal of Ethology Pub Date : 2024-07-18 DOI: 10.1007/s10164-024-00818-4

Teruhisa Matsuura, Takahisa Miyatake

{"title":"Reduced fitness in losers of leg-biting male combat compared to uncontested males in Zophobas atratus","authors":"Teruhisa Matsuura, Takahisa Miyatake","doi":"10.1007/s10164-024-00818-4","DOIUrl":"https://doi.org/10.1007/s10164-024-00818-4","url":null,"abstract":"Sexual dimorphism and male combat are observed in many species. Often, the outcome of male combat affects the outcome of subsequent combats, mating success, number of sperm, and fitness of the male’s offspring. Also, the quantity and quality of sperm may be regulated by winning or losing, depending on species ecology and mating system. However, very few studies have experimentally examined the influence of fight outcomes on male offspring fitness. We studied male combat in the giant mealworm (Zophobas atratus) in which males bite each other’s hind legs. We hypothesized that subsequent fitness could differ between winners and losers in the escalated male combat of this species. We measured several fitness traits including the number of eggs laid by mated females, and the number of hatches sired by uncontested males, winners, and losers in escalated and non-escalated combat, and compared the fitness of each winner and loser to that of an uncontested male. We also measured mating duration. The numbers of eggs and the percentages of hatched eggs of losers in the escalated combat were significantly reduced compared to that of the uncontested males. This reduction may be due to injuries from escalated leg- biting fights and a result of the sperm amount of the uncontested males being greater than that of the loser males.","PeriodicalId":54837,"journal":{"name":"Journal of Ethology","volume":"30 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141739546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Day-after impact of simulated rival encounter in the common cuckoo 布谷鸟模拟遭遇对手后的影响

IF 0.9 4区生物学

Journal of Ethology Pub Date : 2024-07-02 DOI: 10.1007/s10164-024-00820-w

Dominika Winiarska, Łukasz Jankowiak, Piotr Tryjanowski, Tomasz S. Osiejuk

引用次数: 0

Do body size and habitat shape call frequencies of Brazilian hylids (Amphibia: Anura)? 体型和栖息地形状对巴西蝶形目（两栖类：无尾目）的调用频率有影响吗？

IF 0.9 4区生物学

Journal of Ethology Pub Date : 2024-06-28 DOI: 10.1007/s10164-024-00819-3

José Vinícius Bernardy, Diego Llusia, Natan Medeiros Maciel, Paulo De Marco, Rogério Pereira Bastos

{"title":"Do body size and habitat shape call frequencies of Brazilian hylids (Amphibia: Anura)?","authors":"José Vinícius Bernardy, Diego Llusia, Natan Medeiros Maciel, Paulo De Marco, Rogério Pereira Bastos","doi":"10.1007/s10164-024-00819-3","DOIUrl":"https://doi.org/10.1007/s10164-024-00819-3","url":null,"abstract":"Despite acoustic signals playing a fundamental role on animal behavior and reproduction, our understanding of the mechanisms driving their evolution is still scarce. Due to the high cost of signaling, several adaptive bioacoustics hypotheses have been proposed to explain call design. While Acoustic Adaptation Hypothesis (AAH) postulates the habitat influence on shaping acoustic signals, Morphological Adaptation Hypothesis (MAH) emphasizes the constraints that animal structure imposes to their calls. Yet, when testing those hypotheses, phylogenetic comparative methods have been scarcely applied so far. Here we evaluated the AAH and MAH in 163 anurans (i.e., Brazilian species of the family Hylidae), based on a broad review of the dominant frequency of their advertisement calls. Comparative methods revealed a negative relationship between dominant frequency and body size, supporting the MAH. AAH was partly rejected, as vegetation density, habitat type and calling microhabitat did not affect species’ dominant frequency. However, species calling from higher perches had higher dominant frequencies, partially supporting habitat effect on call features. Our results not only highlight the role of morphology on shaping Hylidae call design, but also arise questions about scale effect, behavioral strategies and other sound propagation characteristics while testing AAH in frogs.","PeriodicalId":54837,"journal":{"name":"Journal of Ethology","volume":"23 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141507395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

In between the web and the ground: sexual encounters in the South American wolf spider Aglaoctenus oblongus 蛛网与地面之间：南美狼蛛 Aglaoctenus oblongus 的性遭遇

IF 0.9 4区生物学

Journal of Ethology Pub Date : 2024-06-25 DOI: 10.1007/s10164-024-00817-5

Macarena González, Carlos A. Toscano-Gadea

{"title":"In between the web and the ground: sexual encounters in the South American wolf spider Aglaoctenus oblongus","authors":"Macarena González, Carlos A. Toscano-Gadea","doi":"10.1007/s10164-024-00817-5","DOIUrl":"https://doi.org/10.1007/s10164-024-00817-5","url":null,"abstract":"Changes in the animals’ environment often impact on their behavior and the way they communicate. Particularly in spiders, living on webs or not is a determining factor. While the Lycosidae family predominantly comprises wandering spiders, only a few species inhabit webs. Aglaoctenus oblongus (C.L. Koch 1847) challenges this norm, as it has been found both in webs and wandering, suggesting a previously undocumented mixed strategy. This study aims to: (1) describe the sexual behavior of A. oblongus under laboratory conditions and (2) utilize phenological data to elucidate when and where mating occurs. Sexual encounters were observed within and outside webs, with minimal differences noted between them. Courtship was characterized by groping and leg shaking performed by the males. Copulation was lengthy (near to seven hours), featuring an irregular pattern of palpal insertions, and culminating in a backward dismount. Individuals showed a mixed life history, with the spiders most often found in webs being females with eggs. Both sexes were found throughout the year, with a peak in autumn. We compare the sexual characteristics of this species with that of A. lagotis (also belonging to the Sosippinae subfamily), the only other wolf spider studied to date that exclusively inhabits webs.","PeriodicalId":54837,"journal":{"name":"Journal of Ethology","volume":"29 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141507396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Mate search or predation avoidance? Sex pheromone interrupts death feigning of males in the sweet potato weevil Cylas formicarius 寻找配偶还是躲避捕食？性信息素干扰甘薯象鼻虫雄虫的佯死行为

IF 0.9 4区生物学

Journal of Ethology Pub Date : 2024-06-03 DOI: 10.1007/s10164-024-00816-6

Chihiro Himuro, Takahisa Miyatake

{"title":"Mate search or predation avoidance? Sex pheromone interrupts death feigning of males in the sweet potato weevil Cylas formicarius","authors":"Chihiro Himuro, Takahisa Miyatake","doi":"10.1007/s10164-024-00816-6","DOIUrl":"https://doi.org/10.1007/s10164-024-00816-6","url":null,"abstract":"Death feigning is hypothesized to be an anti-predator behavior in which prey is temporarily immobilized in response to external stimuli. While death feigning may be an effective predator-defense strategy, there may be trade-offs in terms of energy and time for finding food and/or mating. The duration of death feigning is regulated by the balance of various selection pressures, and its duration is influenced by many internal and environmental factors. However, little is known about the factors that influence arousal from death-feigning behavior. Sex pheromones are important semiochemicals that affect reproductive success and may influence the duration of death-feigning behavior. In this study, we aimed to investigate the effects of sex pheromones on the death-feigning behavior of the sweet potato weevil (Cylas formicarius) by conducting laboratory experiments. The results showed that males had a significantly shorter death-feigning duration in the presence of sex pheromones because it aroused them from their death-feigning behavior, but females were unaffected. This is the first study to show that sex pheromones alter death-feigning behavior. The results of this study elucidate the factors influencing predator-avoidance behavior and reveal the impact of death-feigning behavior on prey reproduction under predation pressure.","PeriodicalId":54837,"journal":{"name":"Journal of Ethology","volume":"25 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Video evidence of unusual antler-gnawing behavior of sika deer (Cervus nippon) in central Japan 日本中部梅花鹿异常啃茸行为的视频证据

IF 0.9 4区生物学

Journal of Ethology Pub Date : 2024-05-27 DOI: 10.1007/s10164-024-00815-7

Yoshikazu Seki

{"title":"Video evidence of unusual antler-gnawing behavior of sika deer (Cervus nippon) in central Japan","authors":"Yoshikazu Seki","doi":"10.1007/s10164-024-00815-7","DOIUrl":"https://doi.org/10.1007/s10164-024-00815-7","url":null,"abstract":"To compensate for mineral deficiencies in food sources, numerous ungulate species use various methods, such as salt licking, soil ingestion, and gnawing on antlers or bones. While osteophagia, the act of gnawing on antlers or bones, is well-documented in cervid species, it has only been observed in sika deer (Cervus nippon) on Mageshima Island in southern Japan despite their widespread distribution. This study aimed to provide an initial account of the observations of osteophagia in sika deer from central Japan. One of the 15 camera traps deployed in the Hakone Nature Forest of Tamagawa University for wildlife monitoring serendipitously captured multiple instances of adult female sika deer gnawing on a four-tined antler on July 9th and 16th in 2018. These occurrences coincided with the fawning season of the species during which mineral deficiencies in the diet are prevalent, suggesting that osteophagia serves as a response to nutrient deficiencies in the diet of sika deer in central Japan. Thus, systematic surveys may yield additional evidence of this behavior in sika deer across diverse geographical areas given the absence of studies on osteophagia in sika deer conducted in other regions. Digital video images related to the article are available at http://www.momo-p.com/showdetail-e.php?movieid=momo240508cn01a.","PeriodicalId":54837,"journal":{"name":"Journal of Ethology","volume":"63 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141169778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Temporary division of roles in group hunting for fish eggs by a coral reef fish 珊瑚礁鱼类群体捕食鱼卵时的临时角色分工

IF 0.9 4区生物学

Journal of Ethology Pub Date : 2024-05-13 DOI: 10.1007/s10164-024-00812-w

Hajime Sato, Yoichi Sakai, Tetsuo Kuwamura

{"title":"Temporary division of roles in group hunting for fish eggs by a coral reef fish","authors":"Hajime Sato, Yoichi Sakai, Tetsuo Kuwamura","doi":"10.1007/s10164-024-00812-w","DOIUrl":"https://doi.org/10.1007/s10164-024-00812-w","url":null,"abstract":"Division of roles was observed during group hunting by the false cleanerfish, Aspidontus taeniatus (Blenniidae), when they raid the nests of the damselfish (Pomacentridae) and eat their guarded eggs. In this paper, we provide the first description of the collaborative group egg-eating behavior by the false cleanerfish. When raiding the nests of the three-spot dascyllus, Dascyllus trimaculatus, whose eggs are guarded by parents, the false cleanerfish divided roles as follows: “decoy” or “watcher” to draw attention and attract attacks from the parents, and “hider” or “intruder” to avoid detection by the parents and invade the nest. The potential differential costs associated with each role are unique among examples of group hunting strategies in fishes. However, once any individual in the group successfully invaded the nest, all individuals quickly achieved successful predation of the eggs and gained immediate shared benefit. We propose that the group egg-eating behavior of the false cleanerfish not only reinforces the evidence that fish can collaborate with other individuals but also suggests the hypothesis that collaborative hunting can evolve through mutualism even in fishes. Digital video images related to the article are available at http://www.momo-p.com/showdetail-e.php?movieid=momo240411at01a, and http://www.momo-p.com/showdetail-e.php?movieid=momo240411at02a.","PeriodicalId":54837,"journal":{"name":"Journal of Ethology","volume":"40 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140930819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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