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A Small Number of Workers with Specific Personality Traits Perform Tool Use in Ants Istva´ N Maa´ K1,2, Garyk Roelandt3, Patrizia D’Ettorre3,4*
RESEARCH ARTICLE A small number of workers with specific personality traits perform tool use in ants Istva´ n Maa´ k1,2, Garyk Roelandt3, Patrizia d’Ettorre3,4* 1Department of Ecology, University of Szeged, Szeged, Hungary; 2Museum and Institute of Zoology, Polish Academy of Science, Warsaw, Poland; 3Laboratory of Experimental and Comparative Ethology UR 4443, University Sorbonne Paris Nord, Villetaneuse, France; 4Institut Universitaire de France (IUF), Paris, France Abstract Ants use debris as tools to collect and transport liquid food to the nest. Previous studies showed that this behaviour is flexible whereby ants learn to use artificial material that is novel to them and select tools with optimal soaking properties. However, the process of tool use has not been studied at the individual level. We investigated whether workers specialise in tool use and whether there is a link between individual personality traits and tool use in the ant Aphaenogaster senilis. Only a small number of workers performed tool use and they did it repeatedly, although they also collected solid food. Personality predicted the probability to perform tool use: ants that showed higher exploratory activity and were more attracted to a prey in the personality tests became the new tool users when previous tool users were removed from the group. This suggests that, instead of extreme task specialisation, variation in personality traits within the colony may improve division of labour. Introduction Tool use is a widespread phenomenon within the animal kingdom (Shumaker et al., 2011; Sanz et al., 2013) and new examples of animal tool use are regularly discovered, such as recently in *For correspondence: [email protected] pigs (Root-Bernstein et al., 2019) and seabirds (Fayet et al., 2020). -
3. Generalized Version of Lanchester Equations Model…………..…………………..32
國立交通大學 科技管理研究所 博士論文 由兵力耗損理論探討近代重大戰役之研究 Extending the Lanchester’s Square Law to Better Fit the Attrition in the Ardennes Campaign 研 究 生:唐文漢 指導教授:洪志洋 中華民國九十五年五月 由兵力耗損理論探討近代重大戰役之研究 Extending the Lanchester’s Square Law to Better Fit the Attrition in the Ardennes Campaign 研究生:唐文漢 Student: Wen-Han Tang 指導教授:洪志洋 Advisor: Chih-Young Hung 國立交通大學 科技管理研究所 博士論文 A Dissertation Submitted to Institute of Management of Technology College of Management National Chiao Tung University in partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Management of Technology May 2006 Hsinchu, Taiwan, Republic of China 中華民國九十五年五月 ii 由兵力耗損理論探討近代重大戰役之研究 學生:唐文漢 指導教授:洪志洋 教授 國立交通大學科技管理研究所 摘 要 戰爭是人類社會普遍存在的一種現象,戰爭的特質是交戰雙方意志的衝撞。戰爭 是猛烈艱難的工作,危險是其基本的特性。戰爭行為顯而易見的印象是危險,而人類 對此危險的反應是恐懼。因其改變國家之命運與國家間的秩序,對人類社會的影響既 深且鉅,故交戰雙方都希望藉由瞭解敵軍的戰術、戰略層次及作戰目標,而獲取預想 的利益。並試圖為下次作戰找出有利的戰爭條件和方法。 因此中國的孫子兵法始計篇開宗明義就闡述:兵者,國之大事,死生之地,存亡 之道,不可不察也。又云:夫未戰而廟算勝者,得算多也;未戰而廟算不勝者,得算 少也。多算勝少算不勝,而況於無算乎。謀攻篇提及知勝者有五:知可以戰與不可以 戰者勝,識眾寡之用者勝,上下同欲者勝,以虞待不虞者勝,將能而君不缷者勝。此 五者,知勝之道也。故曰:知己知彼,百戰不殆;不知彼而知,己一勝一負;不知彼 不知己,每戰必敗。 克勞塞維茨在戰爭論中曾說:任何理論的主要目的乃在澄清已然困惑不清與糾葛 難解的構想及理念;除非已對一些名詞與構想的意義加以界定,否則無人能在此方面 獲得任何進展。如有人認為上述說明不具任何意義,則其不是全然無法接受理論上的 分析,就是從未接觸到有關戰爭遂行的各種令人困惑而又相互排斥的理念。事實上, 理論固然無法提供解決問題的公式,也不能作為據以找出唯一解決方案的原則,但卻 能使人深入了解各種紛亂的現象與關係,俾將之提升為更高層次的行動範疇。所以對 理念加以釐清、探討與分析,自有其必要性。克勞塞維茨在戰爭論中又說:攻擊和防 i 禦在戰爭是相互作用的狀態和反應。在進攻和防禦之間轉換將有一段時間的間距很難 定義。 人類長久以來一直透過各種技術發展或科學計算,確切解決對戰爭結果的期盼。 不論是實兵對抗操演、賽局理論、傳統沙盤推演、新興科技電腦兵棋模擬與蘭徹斯特 方程式之解析…等均屬之。近代軍事科技最大的成就不是建造出多麼新穎的武器裝 備,而是藉由軟體與硬體的結合,綿密的管理機制,瞭解戰爭與制止戰爭的發生,此 乃科技管理運用於軍事層面最佳管理意涵寫照。 於是本研究根據以上的需求,透過第二次世界大戰著名的阿登戰役為事例,藉由 -
Nature and Science 2017;15(2)
Nature and Science 2017;15(2) http://www.sciencepub.net/nature Parasitic dependence between different species of ants on other species: phenomenon of social parasitism Irshad A. Wani1, Shabeer A. Wani2, Fayaz A. Shah3, Sajad A. Bhat4, S. Tariq Ahmed5, Mushtaq A. Najar6 1. Govt. Degree College, Anantnag Kashmir 2, 5. Deptt. of Zoology, University of Kashmir, Srinagar 3, 4. Centre of Research for Development (CORD), University of Kashmir, Srinagar 6. Govt. Degree College Boys Anantnag Kashmir [email protected] Abstract: Parasitism is the harmful co-action (disoperation) between two species. Social parasitism describes the exploitation of one species by another, for various advantages. The present paper details the social parasitism in ants. Ants are the marvels of social parasitism. There are three main types of social parasites that form mixed species ant nests: temporary social parasites, permanent inquilines and slave-makers. The paper also throws light on Emery’s rule, which states that social parasites are their host’s closest relatives. [Wani IA, Wani SA, Shah FA, Bhat SA, Ahmad TS. Najar MA. Parasitic dependence between different species of ants on other species: phenomenon of social parasitism. Nat Sci 2017;15(2):22-24]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature. 4. doi:10.7537/marsnsj150217.04. Keywords: Ants, Social, Parasitism, Emery’s rule, Host 1. Introduction exceptions, inquilines do not produce worker Social parasitism, the parasitic dependence of a offspring, but instead invest most of their energy into social insect species on one or several free living producing eggs that eventually develop into sexual social species, is an intriguing feature found in groups forms. -
A Review of the Ant Genera Leptothorax Mayr and Temnothorax Mayr (Hymenoptera, Formicidae) of the Eastern Palaearctic
Acta Zoologica Academiae Scientiarum Hungaricae 50 (2), pp. 109–137, 2004 A REVIEW OF THE ANT GENERA LEPTOTHORAX MAYR AND TEMNOTHORAX MAYR (HYMENOPTERA, FORMICIDAE) OF THE EASTERN PALAEARCTIC A. RADCHENKO Museum and Institute of Zoology, Polish Academy of Sciences 64, Wilcza str., 00–679, Warsaw, Poland; E-mail: [email protected] Nineteen species of the genera Leptothorax and Temnothorax are distributed from Mongolia to the Pacific Ocean, these are revised and a key to their identification is provided. Four new species, Temnothorax cuneinodis, T. xanthos, T. pisarskii and T. michali are described from North Korea. L. galeatus WHEELER is synonymised with T. nassonovi (RUZSKY) and L. wui WHEELER is raised to species rank (in the genus Temnothorax). Key words: ants, Leptothorax, Temnothorax, taxonomy, new species, key, East Palaearctic INTRODUCTION The genus Leptothorax was described by MAYR in 1855, and a few years later he described the closely related genus Temnothorax (MAYR, 1861). For many years, the latter was regarded by different authors either as a good genus or as a subgenus of Leptothorax, but during the last decade it was considered to be a junior synonym of Leptothorax (BOLTON, 1995). BINGHAM (1903) designated Formica acervorum FABRICIUS, 1793 as the type-species of the genus Leptothorax. About the same time RUZSKY (1904) de- scribed the genus Mychothorax, to which F. acervorum was also assigned as type species (by original designation); later Mychothorax was considered as a subgenus of Leptothorax, insomuch that EMERY (1912, 1921) designated Myrmica clypeata MAYR, 1853 as the type species of Leptothorax. All subsequent authors placed the species with 11-jointed antennae in the subgenus Mychothorax and those with 12-jointed antennae in the subgenus Leptothorax s. -
Radiation in Socially Parasitic Formicoxenine Ants
RADIATION IN SOCIALLY PARASITIC FORMICOXENINE ANTS DISSERTATION ZUR ERLANGUNG DES DOKTORGRADES DER NATURWISSENSCHAFTEN (D R. R ER . N AT .) DER NATURWISSENSCHAFTLICHEN FAKULTÄT III – BIOLOGIE UND VORKLINISCHE MEDIZIN DER UNIVERSITÄT REGENSBURG vorgelegt von Jeanette Beibl aus Landshut 04/2007 General Introduction II Promotionsgesuch eingereicht am: 19.04.2007 Die Arbeit wurde angeleitet von: Prof. Dr. J. Heinze Prüfungsausschuss: Vorsitzender: Prof. Dr. S. Schneuwly 1. Prüfer: Prof. Dr. J. Heinze 2. Prüfer: Prof. Dr. S. Foitzik 3. Prüfer: Prof. Dr. P. Poschlod General Introduction I TABLE OF CONTENTS GENERAL INTRODUCTION 1 CHAPTER 1: Six origins of slavery in formicoxenine ants 13 Introduction 15 Material and Methods 17 Results 20 Discussion 23 CHAPTER 2: Phylogeny and phylogeography of the Mediterranean species of the parasitic ant genus Chalepoxenus and its Temnothorax hosts 27 Introduction 29 Material and Methods 31 Results 36 Discussion 43 CHAPTER 3: Phylogenetic analyses of the parasitic ant genus Myrmoxenus 46 Introduction 48 Material and Methods 50 Results 54 Discussion 59 CHAPTER 4: Cuticular profiles and mating preference in a slave-making ant 61 Introduction 63 Material and Methods 65 Results 69 Discussion 75 CHAPTER 5: Influence of the slaves on the cuticular profile of the slave-making ant Chalepoxenus muellerianus and vice versa 78 Introduction 80 Material and Methods 82 Results 86 Discussion 89 GENERAL DISCUSSION 91 SUMMARY 99 ZUSAMMENFASSUNG 101 REFERENCES 103 APPENDIX 119 DANKSAGUNG 120 General Introduction 1 GENERAL INTRODUCTION Parasitism is an extremely successful mode of life and is considered to be one of the most potent forces in evolution. As many degrees of symbiosis, a phenomenon in which two unrelated organisms coexist over a prolonged period of time while depending on each other, occur, it is not easy to unequivocally define parasitism (Cheng, 1991). -
Complexity and Behaviour in Leptothorax Ants
Complexity and behaviour in Leptothorax ants Octavio Miramontes Universidad Nacional Aut´onomade M´exico ISBN 978-0-9831172-2-3 Mexico City Boston Vi¸cosa Madrid Cuernavaca Beijing CopIt ArXives 2007 Washington, DC CopIt ArXives Mexico City Boston Vi¸cosa Madrid Cuernavaca Beijing Copyright 1993 by Octavio Miramontes Published 2007 by CopIt ArXives Washington, DC All property rights of this publications belong to the author who, however, grants his authorization to the reader to copy, print and distribute his work freely, in part or in full, with the sole conditions that (i) the author name and original title be cited at all times, (ii) the text is not modified or mixed and (iii) the final use of the contents of this publication must be non commercial Failure to meet these conditions will be a violation of the law. Electronically produced using Free Software and in accomplishment with an Open Access spirit for academic publications Social behaviour in ants of the genus Leptothorax is reviewed. Attention is paid to the existence of collective robust periodic oscillations in the activity of ants inside the nest. It is known that those oscillations are the outcome of the process of short-distance interactions among ants and that the activity of individual workers is not periodic. Isolated workers can activate spontaneously in a unpredictable fashion. A model of an artificial society of computer automata endowed with the basic behavioural traits of Leptothorax ants is presented and it is demonstrated that collective periodic oscillations in the activity domain can exist as a consequence of interactions among the automata. -
Recovery of Domestic Behaviors by a Parasitic Ant (Formica Subintegra) in the Absence of Its Host (Formica Subsericea)
BearWorks MSU Graduate Theses Spring 2019 Recovery of Domestic Behaviors by a Parasitic Ant (Formica Subintegra) in the Absence of Its Host (Formica Subsericea) Amber Nichole Hunter Missouri State University, [email protected] As with any intellectual project, the content and views expressed in this thesis may be considered objectionable by some readers. However, this student-scholar’s work has been judged to have academic value by the student’s thesis committee members trained in the discipline. The content and views expressed in this thesis are those of the student-scholar and are not endorsed by Missouri State University, its Graduate College, or its employees. Follow this and additional works at: https://bearworks.missouristate.edu/theses Part of the Behavior and Ethology Commons, Entomology Commons, and the Other Ecology and Evolutionary Biology Commons Recommended Citation Hunter, Amber Nichole, "Recovery of Domestic Behaviors by a Parasitic Ant (Formica Subintegra) in the Absence of Its Host (Formica Subsericea)" (2019). MSU Graduate Theses. 3376. https://bearworks.missouristate.edu/theses/3376 This article or document was made available through BearWorks, the institutional repository of Missouri State University. The work contained in it may be protected by copyright and require permission of the copyright holder for reuse or redistribution. For more information, please contact [email protected]. RECOVERY OF DOMESTIC BEHAVIORS BY A PARASITIC ANT (FORMICA SUBINTEGRA) IN THE ABSENCE OF ITS HOST (FORMICA -
Origins and Affinities of the Ant Fauna of Madagascar
Biogéographie de Madagascar, 1996: 457-465 ORIGINS AND AFFINITIES OF THE ANT FAUNA OF MADAGASCAR Brian L. FISHER Department of Entomology University of California Davis, CA 95616, U.S.A. e-mail: [email protected] ABSTRACT.- Fifty-two ant genera have been recorded from the Malagasy region, of which 48 are estimated to be indigenous. Four of these genera are endemic to Madagascar and 1 to Mauritius. In Madagascar alone,41 out of 45 recorded genera are estimated to be indigenous. Currently, there are 318 names of described species-group taxa from Madagascar and 381 names for the Malagasy region. The ant fauna of Madagascar, however,is one of the least understoodof al1 biogeographic regions: 2/3of the ant species may be undescribed. Associated with Madagascar's long isolation from other land masses, the level of endemism is high at the species level, greaterthan 90%. The level of diversity of ant genera on the island is comparable to that of other biogeographic regions.On the basis of generic and species level comparisons,the Malagasy fauna shows greater affinities to Africathan to India and the Oriental region. Thestriking gaps in the taxonomic composition of the fauna of Madagascar are evaluatedin the context of island radiations.The lack of driver antsin Madagascar may have spurred the diversification of Cerapachyinae and may have permitted the persistenceof other relic taxa suchas the Amblyoponini. KEY W0RDS.- Formicidae, Biogeography, Madagascar, Systematics, Africa, India RESUME.- Cinquante-deux genres de fourmis, dont 48 considérés comme indigènes, sontCOMUS dans la région Malgache. Quatre d'entr'eux sont endémiques de Madagascaret un seul de l'île Maurice. -
Guide to the Wood Ants of the UK
Guide to the Wood Ants of the UK and related species © Stewart Taylor © Stewart Taylor Wood Ants of the UK This guide is aimed at anyone who wants to learn more about mound-building woodland ants in the UK and how to identify the three ‘true’ Wood Ant species: Southern Red Wood Ant, Scottish Wood Ant and Hairy Wood Ant. The Blood-red Ant and Narrow-headed Ant (which overlap with the Wood Ants in their appearance, habitat and range) are also included here. The Shining Guest Ant is dependent on Wood Ants for survival so is included in this guide to raise awareness of this tiny and overlooked species. A further related species, Formica pratensis is not included in this guide. It has been considered extinct on mainland Britain since 2005 and is now only found on Jersey and Guernsey in the British Isles. Funding by CLIF, National Parks Protectors Published by the Cairngorms National Park Authority © CNPA 2021. All rights reserved. Contents What are Wood Ants? 02 Why are they important? 04 The Wood Ant calendar 05 Colony establishment and life cycle 06 Scottish Wood Ant 08 Hairy Wood Ant 09 Southern Red Wood Ant 10 Blood-red Ant 11 Narrow-headed Ant 12 Shining Guest Ant 13 Comparison between Shining Guest Ant and Slender Ant 14 Where to find Wood Ants 15 Nest mounds 18 Species distributions 19 Managing habitat for wood ants 22 Survey techniques and monitoring 25 Recording Wood Ants 26 Conservation status of Wood Ants 27 Further information 28 01 What are Wood Ants? Wood Ants are large, red and brown-black ants and in Europe most species live in woodland habitats. -
Trees Increase Ant Species Richness and Change Community Composition in Iberian Oak Savannahs
diversity Article Trees Increase Ant Species Richness and Change Community Composition in Iberian Oak Savannahs Álvaro Gaytán 1,* , José L. Bautista 2, Raúl Bonal 2,3 , Gerardo Moreno 2 and Guillermo González-Bornay 2 1 Department of Ecology, Environment and Plant Sciences, Stockholm University, 114-18 Stockholm, Sweden 2 Grupo de investigación Forestal, INDEHESA, University of Extremadura, 10600 Plasencia, Spain; [email protected] (J.L.B.); [email protected] (R.B.); [email protected] (G.M.); [email protected] (G.G.-B.) 3 Department of Biodiversity, Ecology and Evolution, Complutense University of Madrid, 28040 Madrid, Spain * Correspondence: [email protected] Abstract: Iberian man-made oak savannahs (so called dehesas) are traditional silvopastoral systems with a high natural value. Scattered trees provide shelter and additional food to livestock (cattle in our study sites), which also makes possible for animals depending on trees in a grass-dominated landscape to be present. We compared dehesas with nearby treeless grasslands to assess the effects of oaks on ant communities. Formica subrufa, a species associated with decayed wood, was by far the most abundant species, especially in savannahs. Taxa specialized in warm habitats were the most common both in dehesas and grasslands, as expected in areas with a Mediterranean climate. Within dehesas, the number of species was higher below oak canopies than outside tree cover. Compared to treeless grasslands, the presence of oaks resulted in a higher species richness of aphid-herding and predator ants, probably because trees offer shelter and resources to predators. The presence Citation: Gaytán, Á.; Bautista, J.L.; of oaks changed also the species composition, which differed between grasslands and dehesas. -
Hymenoptera: Formicidae)
THE ORIGIN OF WORKERLESS PARASITES IN LEPTOTHORAX (S.STR.) (HYMENOPTERA: FORMICIDAE) BY JORGEN HEINZE Theodor-Boveri-Institut (Biozentrum der Universitit), LS Verhaltensphysiologie und Soziobiologie, Am Hubland, D-97074 Wtirzburg, F.R.G. ABSTRACT The evolutionary origin of workerless parasitic ants parasitizing colonies of Leptothorax (s.str.) is investigated using data on mor- phology, chromosome number, and allozyme phenotype of both social parasites and their hosts. Of the three previously proposed pathways, the evolution of workerless parasites from guest ants or slave-makers is unlikely, at least according to a phenogram obtained by UPGMA clustering of Nei's similarities based on seven enzymes. Intraspecific evolution of the workerless parasites Doronomyrmex goesswaldi, D. kutteri, and D. pacis from their common host, Leptothorax acervorum cannot be excluded with the present data. The workerless parasite L. paraxenus, however, clearly differs from its host, L. cf. canadensis, in morphology and biochemistry, and most probably did not evolve from the latter species. It is proposed to synonymize Doronomyrmex under Lep- tothorax (s.str.). INTRODUCTION Eusocial insects by definition are characterized by a division of labor between non-reproductive workers and reproductive queens. Nevertheless, in a small minority of ant, bee, and wasp species, the worker caste has been secondarily lost. Instead of founding their own colonies solitarily, the queens of these workerless social para- sites invade the nests of other, often closely related host species and exploit the present worker force to rear their own young. In 1present address: Zool. Inst. I, Univ. Erlangen-Ntirnberg, Staudtstrasse 5, D-91058 Erlangen, Germany Manuscript received 19 January 1996. -
Hymenoptera: Formicidae)
THE ORIGIN OF WORKERLESS PARASITES IN LEPTOTHORAX (S.STR.) (HYMENOPTERA: FORMICIDAE) BY JORGEN HEINZE Theodor-Boveri-Institut (Biozentrum der Universitit), LS Verhaltensphysiologie und Soziobiologie, Am Hubland, D-97074 Wtirzburg, F.R.G. ABSTRACT The evolutionary origin of workerless parasitic ants parasitizing colonies of Leptothorax (s.str.) is investigated using data on mor- phology, chromosome number, and allozyme phenotype of both social parasites and their hosts. Of the three previously proposed pathways, the evolution of workerless parasites from guest ants or slave-makers is unlikely, at least according to a phenogram obtained by UPGMA clustering of Nei's similarities based on seven enzymes. Intraspecific evolution of the workerless parasites Doronomyrmex goesswaldi, D. kutteri, and D. pacis from their common host, Leptothorax acervorum cannot be excluded with the present data. The workerless parasite L. paraxenus, however, clearly differs from its host, L. cf. canadensis, in morphology and biochemistry, and most probably did not evolve from the latter species. It is proposed to synonymize Doronomyrmex under Lep- tothorax (s.str.). INTRODUCTION Eusocial insects by definition are characterized by a division of labor between non-reproductive workers and reproductive queens. Nevertheless, in a small minority of ant, bee, and wasp species, the worker caste has been secondarily lost. Instead of founding their own colonies solitarily, the queens of these workerless social para- sites invade the nests of other, often closely related host species and exploit the present worker force to rear their own young. In 1present address: Zool. Inst. I, Univ. Erlangen-Ntirnberg, Staudtstrasse 5, D-91058 Erlangen, Germany Manuscript received 19 January 1996.