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Mating and post-hibernation ovarian development in stylopized and non-stylopized queens of the hornet Vespa analis (Hymenoptera Vespidae) 花柱化和非花柱化蜂后的交配和冬眠后卵巢发育(膜翅目蜂科)
Pub Date : 2023-05-28 DOI: 10.1080/03949370.2023.2213194
K. Kudô, W. Oyaizu, Rikako Kusama, Kohei Yamagishi, Y. Yamaguchi, S. Koji
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引用次数: 0
Nesting behaviour of short-toed eagles (Circaetus gallicus) in central Italy, as revealed by nest cameras 意大利中部短趾鹰(Circaetus gallicus)的筑巢行为,由巢摄像机显示
Pub Date : 2023-05-16 DOI: 10.1080/03949370.2023.2201921
F. Cauli, P. Audisio, Luigi Marozza, F. Petretti, A. Sorace
During 2021, from 1 March to 31 August, we used camera-traps to monitor two short-toed eagle pairs in the Tolfa hills (Latium, central Italy) with the intention of observing differences in behaviour between the two sexes and between different pairs during the entire breeding cycle. Males carried mainly dry twigs during the pre-laying period; females carried mostly leafy twigs usually after laying. Brooding is carried out almost entirely by the females (83 vs 17%), and females alone were observed to brood during the night. The adults’ behaviour differed even further during the fledging period: the male went hunting and limited himself almost exclusively to delivering the prey, while the female continued to remain at the nest until the chick was 22 days old, after which her absences increased constantly up to the 45th day, which is more than half of the fledging period. Female-chick interactions can be frequent and lasts up to the middle of the fledging period. Significant behavioural differences emerged from the comparison between the two pairs during the pre-laying period: in particular the average daily presence at the nest (72 vs 31 min) and the number of prey items offered at the nest by the male (29 vs 4). We also observed evident differences between pairs in the nest courtship displays. In one nest we observed an unmistakable and frequent behaviour, that we propose to call “neck display”, and which was never observed in the other nest.
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引用次数: 0
Nothing like home: most males of Espadarana prosoblepon (Anura Centrolenidae) exhibit homing to calling site despite the availability of alternative suitable sites for calling and mating 没有什么比家更像家的了:尽管有其他合适的地方可以选择打电话和交配,但大多数雄性的长尾无尾猿(Espadarana prosoblepon)还是会回到打电话的地方
Pub Date : 2023-05-02 DOI: 10.1080/03949370.2023.2201923
Daniela A. Gómez-Murcia, María del M. Bedoya-Ospina, L. F. Arcila-Pérez, F. Vargas-Salinas
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引用次数: 0
Water visitation patterns by Eleonora’s falcon at its breeding grounds: a case study using visual observations and camera traps Eleonora的猎鹰在其繁殖地的水访问模式:使用视觉观察和相机陷阱的案例研究
Pub Date : 2023-05-01 DOI: 10.1080/03949370.2023.2191339
C. Kassara, Kyriaki Bairaktaridou, Mary Maximiadi, Triantafyllos Akriotis, S. Giokas, B. Psiloglou, C. Barboutis
Water is a vital resource providing multiple services to many organisms, including birds. Eleonora’s falcon is an iconic, long-distance migrant bird of the Palearctic region. While various aspects of its life history have been thoroughly studied, its dependence on water sources has been poorly documented. In this study, we examine for the first time the species’ visitation patterns at a complex of small, natural ponds of karstic water on a Greek island and provide a detailed description of its bathing and drinking behaviour using visual observations and camera traps. Our results indicate that the species visits the ponds systematically from spring until autumn to bathe and drink. Water visitation patterns suggest communal behaviour, most probably benefitting from increased vigilance in greater numbers. In spring, male falcons prevail during water sessions and the reverse pattern is observed in autumn, whereas morph ratio remains stable, close to the expected 3:1 ratio. Temperature, affecting the falcons’ foraging activity and/or their heat dissipation requirements, together with seasonal differences in labour division between sexes can explain a significant amount of the observed variability in water visitation patterns. Freshwater sources in most islets hosting breeding colonies are scarce, thus natural ponds in nearby larger islands are an important resource many falcons could rely on while at their breeding grounds. The identification and preservation of bathing and drinking spots where falcons gather in numbers across its breeding range is thus highly recommended. Considering the forecasted impact of climate change on karstic water we also encourage an in-depth analysis of the role of water in the adaptation of Eleonora’s falcon to a life in insular environments experiencing global warming. Last but not least, further investigation of the species’ communal behaviour regarding water use can also offer interesting insights in the species’ natural history. HIGHLIGHTS•Eleonora’s falcons visit the water ponds systematically and communally to bathe and drink •Temperature variability and differences in labour division between sexes explain water visitation patterns to a large extent
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引用次数: 1
Testosterone treatment unveils testosterone-insensitive song in an early-branched hummingbird 睾酮治疗揭示了早期分支蜂鸟对睾酮不敏感的歌声
Pub Date : 2023-03-15 DOI: 10.1080/03949370.2023.2181873
Amanda Monte, Albertine Leitão, Carolina Frankl-Vilches, Rodrigo da Silva Matos, Monika Trappschuh, Maria L. da Silva, M. Gahr
{"title":"Testosterone treatment unveils testosterone-insensitive song in an early-branched hummingbird","authors":"Amanda Monte, Albertine Leitão, Carolina Frankl-Vilches, Rodrigo da Silva Matos, Monika Trappschuh, Maria L. da Silva, M. Gahr","doi":"10.1080/03949370.2023.2181873","DOIUrl":"https://doi.org/10.1080/03949370.2023.2181873","url":null,"abstract":"","PeriodicalId":230805,"journal":{"name":"Ethology Ecology & Evolution","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128129550","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
The white-browed laughingthrush (Pterorhinus sannio) did not pass the mirror self-recognition test 白眉笑鸫(Pterorhinus sannio)没有通过镜像自我识别测试
Pub Date : 2023-03-07 DOI: 10.1080/03949370.2023.2178032
Yan Zhang, Liqiong Yang, Peter Pohl, Fan Xu, Fangfang Liu
Self-awareness is an important concept in discussions of consciousness that has received increasing attention. To our knowledge, mirror self-recognition and self-awareness has not been studied in the white-browed laughing thrush Pterorhinus sannio. In our investigation, wild Pterorhinus sannio were presented with a self-recognition test known as the mirror self-recognition test (MSR). All birds performed four different displays in front of the mirror that we call “look around”, “crouch”, “jump to top of the mirror”, and “shake the wings”. These behaviours did not occur in the absence of the mirror. These behaviours typically are directed towards other individuals this suggest that P. sannio does not recognise itself in the mirror, and it does not have the capacity of self-awareness, at least not judged from the mark mirror test.
{"title":"The white-browed laughingthrush (Pterorhinus sannio) did not pass the mirror self-recognition test","authors":"Yan Zhang, Liqiong Yang, Peter Pohl, Fan Xu, Fangfang Liu","doi":"10.1080/03949370.2023.2178032","DOIUrl":"https://doi.org/10.1080/03949370.2023.2178032","url":null,"abstract":"Self-awareness is an important concept in discussions of consciousness that has received increasing attention. To our knowledge, mirror self-recognition and self-awareness has not been studied in the white-browed laughing thrush Pterorhinus sannio. In our investigation, wild Pterorhinus sannio were presented with a self-recognition test known as the mirror self-recognition test (MSR). All birds performed four different displays in front of the mirror that we call “look around”, “crouch”, “jump to top of the mirror”, and “shake the wings”. These behaviours did not occur in the absence of the mirror. These behaviours typically are directed towards other individuals this suggest that P. sannio does not recognise itself in the mirror, and it does not have the capacity of self-awareness, at least not judged from the mark mirror test.","PeriodicalId":230805,"journal":{"name":"Ethology Ecology & Evolution","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131911175","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
Mirror responses in African grey parrot (Psittacus erithacus) support the gradualist perspective on mirror self-recognition 非洲灰鹦鹉(Psittacus erithacus)的镜像反应支持镜像自我识别的渐进主义观点
Pub Date : 2023-02-27 DOI: 10.1080/03949370.2023.2178031
Yi Lin, Enle Pei, Qunxiu Liu, Jun Ma, E. Zhang, Junyi Zhao, Min Chen
So far, only a handful of species have successfully passed the mirror test, showing the mirror self-recognition ability. Birds that have been claimed to show this ability are all corvids. In this study, we conducted a series of mirror-related tests, including open mirror exposure, mirror-mediated foraging task and mark test, to investigate this ability in the African grey parrot. Subjects responded to the mirror on three levels. Three subjects consistently showed social behaviours towards the mirror, two of which repeatedly hit the mirror throughout the test, indicating a complete lack of mirror perception and self-recognition. Two subjects showed social behaviours or hit the mirror almost within the first 10 min of the mirror trial, indicating they initially recognized mirror images as conspecifics but changed this misconception over time. There was only one individual, who not only never hit the mirror and exhibited social behaviours towards the mirror, but also could use the mirror to locate hidden food and mark on the body that was invisible without a mirror. However, considering the lack of contingent behaviours and spontaneous mirror-guided self-directed behaviours, it is hard to assert the African grey parrot possesses mirror self-recognition. All in all, we found our subjects responded differently towards the mirror, showing varying levels of understanding of the mirror. Our findings support the gradualist perspective on mirror self-recognition. Different mark methods are also discussed, and we suggest attaching the mark on the mandible in future parrot research. HIGHLIGHTS African grey parrots showed varying responses towards the mirror image. Half subjects showed consistent social behaviours towards mirror images. One subject found hidden food as soon as a mirror was presented. No robust evidence was found that African grey parrots could pass the mark test.
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引用次数: 0
A delicate balance: wolves exploiting dogs’ predation attempts in central Italy 微妙的平衡:狼利用狗在意大利中部的捕食企图
Pub Date : 2023-02-08 DOI: 10.1080/03949370.2022.2160828
G. Damiani
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引用次数: 0
Body colour adjustment of the freshwater shrimp Macrobrachium jelskii (Miers 1877) in different background colours 杰尔沼虾(Miers 1877)在不同背景色下的体色调整
Pub Date : 2023-01-19 DOI: 10.1080/03949370.2022.2160829
J. G. Araújo, W. M. Nascimento, Paulo H.P. Nobre, C. A. Martins, C. A. Nascimento, A. Pinheiro
The body colour variation in response to different background colours is associated with camouflage, increasing efficiency against predation. In our study, we investigated the body colour variation of the freshwater shrimp Macrobrachium jelskii in response to different background colours. For this, we collected specimens of M. jelskii in the Thomás Osterne Reservoir, Municipality of Crato, State of Ceará, Brazil. For the experiment, we used six aquariums divided into three treatment groups: white background; black background; red background; with two replicates for each group. Before the experiment, we photographed 30 specimens of M. jelskii in dorsal view. Then, we distributed five shrimps in each aquarium, totalling 10 shrimps per treatment. After 30 days, we obtained new images of the shrimps, under the same settings used before the experiment. We used ImageJ software to obtain the RGB values (Red, Green, Blue) of the dorsal region of the first abdominal somite of the shrimps. Before the experiment, the body pigmentation of M. jelskii was homogeneous, with overlap between the groups. After the experiment, the RGB of M. jelskii varied according to each background colour, differing between the white and black, between the white and red, and not differing between the black and red. Our results show that M. jelskii adjusted its pigmentation to different background colours, evidencing a mechanism that may favour the camouflage of the species in different habitats and provide more chances of survival against visual predators.
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引用次数: 1
Juveniles are different: substrate selection in juvenile green lizards Lacerta bilineata 幼崽不同:绿蜥蜴幼崽的底物选择
Pub Date : 2022-12-28 DOI: 10.1080/03949370.2022.2157893
R. Meek, L. Luiselli
The relationship between a reptile and its thermal environment is a key feature of habitat use, which may be impacted by, among others, the requirements for food, avoidance of competitors and predators. Juvenile lizards are subject to the same ecological pressures, but may additionally experience predation or exclusion from prime basking site by adults and hence their capacity to achieve preferred body temperatures. In this paper, we examined basking site selection in juvenile western green lizards, Lacerta bilineata and compared them to basking site availability. Secondly, measurements of morning substrate temperatures at different basking sites were compared to basking site selection over the same period. The results indicated that juveniles selected substrates with fast heating surfaces, for example fallen branches for basking, in greater frequency than their availability but in even greater than expected frequency on the cooler surfaces of clusters of bramble plant. This finding contrasted with basking site selection in adult L. bilineata in a previous study where wood surfaces was preferred over non-wood surfaces whilst avoiding basking on bramble. This illustrates the different ecological requirements between adults and juveniles.
{"title":"Juveniles are different: substrate selection in juvenile green lizards Lacerta bilineata","authors":"R. Meek, L. Luiselli","doi":"10.1080/03949370.2022.2157893","DOIUrl":"https://doi.org/10.1080/03949370.2022.2157893","url":null,"abstract":"The relationship between a reptile and its thermal environment is a key feature of habitat use, which may be impacted by, among others, the requirements for food, avoidance of competitors and predators. Juvenile lizards are subject to the same ecological pressures, but may additionally experience predation or exclusion from prime basking site by adults and hence their capacity to achieve preferred body temperatures. In this paper, we examined basking site selection in juvenile western green lizards, Lacerta bilineata and compared them to basking site availability. Secondly, measurements of morning substrate temperatures at different basking sites were compared to basking site selection over the same period. The results indicated that juveniles selected substrates with fast heating surfaces, for example fallen branches for basking, in greater frequency than their availability but in even greater than expected frequency on the cooler surfaces of clusters of bramble plant. This finding contrasted with basking site selection in adult L. bilineata in a previous study where wood surfaces was preferred over non-wood surfaces whilst avoiding basking on bramble. This illustrates the different ecological requirements between adults and juveniles.","PeriodicalId":230805,"journal":{"name":"Ethology Ecology & Evolution","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115718206","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: 1
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