Nigel R. Franks (born 21 August 1956) is an English emeritus professor of Animal Behaviour and Ecology at the University of Bristol. He obtained a BSc and PhD in biology at the University of Leeds. [1] After receiving his BSc in 1977 he began his PhD, during which he spent two years doing field work in Panama on army ants with the Smithsonian Tropical Research Institute. He was awarded the Thomas Henry Huxley Award in 1980 from the Zoological Society of London for the best British PhD in Zoology. He then received a Postdoctoral Fellowship from the Royal Commission for the Great Exhibition of 1851 allowing him to undertake postdoctoral work under Edward O. Wilson at Harvard University before becoming a lecturer at the University of Bath in 1982, later being promoted to full professor in 1995. He moved to the University of Bristol in 2001. He is renowned for his studies of collective animal behaviour, particularly of ant colonies. His Ant Lab at Bristol pioneered the use of Temnothorax (Temnothorax albipennis) as a model ant species for the study of collective decision-making and complex systems. In a 2009 profile in Science he discusses his pioneering use of radio-frequency identification tags (RFID) glued to the backs of each ant for tracking individuals in their society. [2] His book Social evolution in ants with Andrew Bourke was an important contribution to the understanding of kin selection theory and sex ratio theory with respect to social evolution in insects, [3] while his co-authored book Self-organization in biological systems has been cited well over 3000 times [4]
Temnothorax albipennis ants have been observed teaching each other through a process known as tandem running. An experienced forager leads a naive nest-mate to a newly discovered resource such as food or an empty nest site. The follower obtains knowledge of the route by following in the footsteps of the tutor, maintaining contact with its antennae. Both leader and follower are aware of the progress made by the other with the leader slowing when the follower lags and speeding up when the follower gets too close. [5] Depending on how far away a new resource is, colonies will modulate the number of tandem runs that they perform, with a greater number of tandem runs occurring when the desired resource is more distant. [6] Furthermore, the relative contribution that workers make to this process differs widely among individuals, with certain ants attempting many more tandem runs than others. [7]
Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera. Ants appear in the fossil record across the globe in considerable diversity during the latest Early Cretaceous and early Late Cretaceous, suggesting an earlier origin. Ants evolved from vespoid wasp ancestors in the Cretaceous period, and diversified after the rise of flowering plants. More than 13,800 of an estimated total of 22,000 species have been classified. They are easily identified by their geniculate (elbowed) antennae and the distinctive node-like structure that forms their slender waists.
A superorganism or supraorganism is a group of synergetically interacting organisms of the same species. A community of synergetically interacting organisms of different species is called a holobiont.
Professor Geoffrey Alan Parker FRS is an emeritus professor of biology at the University of Liverpool and the 2008 recipient of the Darwin Medal.
Robin Ian MacDonald Dunbar is a British anthropologist and evolutionary psychologist and a specialist in primate behaviour. He is currently head of the Social and Evolutionary Neuroscience Research Group in the Department of Experimental Psychology at the University of Oxford. He is best known for formulating Dunbar's number, a measurement of the "cognitive limit to the number of individuals with whom any one person can maintain stable relationships".
The name army ant (or legionary ant or marabunta) is applied to over 200 ant species in different lineages. Because of their aggressive predatory foraging groups, known as "raids", a huge number of ants forage simultaneously over a limited area.
Klaus Biemann was an Austrian-American professor of chemistry at the Massachusetts Institute of Technology. His work centered on structural analysis in organic and biochemistry. He has been called the "father of organic mass spectrometry" but was particularly noted for his role in advancing protein sequencing with tandem mass spectrometry.
Paul Glendinning is a Professor of Applied Mathematics, in the School of Mathematics at the University of Manchester who is known for his work on dynamical systems, specifically models of the time-evolution of complex mathematical or physical processes. His main areas of research are bifurcation theory ; synchronization and blowout bifurcations; low-dimensional maps; and quasi-periodically forced systems.
Myrmoxenus is a genus of ants in the subfamily Myrmicinae. The genus was synonymized under Temnothorax by Ward et al. (2015), but the change was not accepted by Heinze et al. (2015) due to insufficient available data.
Robert Kurzban is a freelance writer and former psychology professor specializing in evolutionary psychology.
Tandem running is a social learning phenomenon seen mostly in ants, by which one ant leads another native ant from the nest to the food source it has found. Tandem running is also used to find and choose better, new nest sites to which the colony can emigrate. The follower ant maintains contact with the lead ant by frequently touching the leader’s legs and abdomen with its antennae. As predators, scavengers, and herbivores, ants have a variety of food sources, for which they may journey as far as 200 meters from their nest, spraying a scent trail as they go. To lead their kin to new food sources, ants demonstrate one of the few examples of interactive teaching outside of the mammalian class. Social learning by teaching requires that the naive observer change its behavior and acquire some skills or knowledge faster than it would have independently and that the teacher incur some cost. In order for the follower ant to learn landmarks, the leader must travel much slower and make frequent stops to check for his follower. Ultimately, the knowledge of the route to the new food source can be passed throughout the colony as one follower becomes a leader, making tandem running an effective time-saving practice.
Task allocation and partitioning is the way that tasks are chosen, assigned, subdivided, and coordinated within a colony of social insects. Task allocation and partitioning gives rise to the division of labor often observed in social insect colonies, whereby individuals specialize on different tasks within the colony. Communication is closely related to the ability to allocate tasks among individuals within a group. This entry focuses exclusively on social insects. For information on human task allocation and partitioning, see division of labour, task analysis, and workflow.
Naomi E. Pierce is the Hessel Professor of Biology at Harvard University and a world authority on butterflies. Pierce is the university's Curator of Lepidoptera, a position once held by Vladimir Nabokov.
Temnothorax albipennis, the rock ant is a species of small ant in the subfamily Myrmicinae. It occurs in Europe and builds simple nests in rock crevices.
A gamergate is a mated worker ant that can reproduce sexually, i.e., lay fertilized eggs that will develop as females. Gamergates are restricted to taxa where the workers have a functional sperm reservoir ('spermatheca'). In various species, gamergates reproduce in addition to winged queens, while in other species the queen caste has been completely replaced by gamergates. In gamergate species, all workers in a colony have similar reproductive potentials, but as a result of physical interactions, a dominance hierarchy is formed and only one or a few top-ranking workers can mate and produce eggs. Subsequently however, aggression is no longer needed as gamergates secrete chemical signals that inform the other workers of their reproductive status in the colony.
Leptothorax acervorum is a small brown to yellow ant in the subfamily Myrmicinae. It was first described by Johan Christian Fabricius in 1793. L. acervorum is vastly distributed across the globe, most commonly found in the coniferous forests of Central, Western and Northern Europe. The morphology of L. acervorum is extremely similar to that of other Leptothorax ants. The difference arises in the two-toned appearance of L. acervorum, with the head and metasoma being darker than the mesosoma segment of the body, and hair across its body. Following Bergmann's rule—unusually, for ectothermic animals—body size increases with latitude.
Temnothorax is a genus of ants in the subfamily Myrmicinae. It contains more than 350 species.
David Andrew Whiten, known as Andrew Whiten is a British zoologist and psychologist, Professor of Evolutionary and Developmental Psychology, and Professor Wardlaw Emeritus at University of St Andrews in Scotland. He is known for his research in social cognition, specifically on social learning, tradition and the evolution of culture, social Machiavellian intelligence, autism and imitation, as well as the behavioral ecology of sociality. In 1996, Whiten and his colleagues invented an artificial fruit that allowed to study learning in apes and humans.
Social immunity is any antiparasite defence mounted for the benefit of individuals other than the actor. For parasites, the frequent contact, high population density and low genetic variability makes social groups of organisms a promising target for infection: this has driven the evolution of collective and cooperative anti-parasite mechanisms that both prevent the establishment of and reduce the damage of diseases among group members. Social immune mechanisms range from the prophylactic, such as burying beetles smearing their carcasses with antimicrobials or termites fumigating their nests with naphthalene, to the active defenses seen in the imprisoning of parasitic beetles by honeybees or by the miniature 'hitchhiking' leafcutter ants which travel on larger worker's leaves to fight off parasitoid flies. Whilst many specific social immune mechanisms had been studied in relative isolation, it was not until Sylvia Cremer et al.'s 2007 paper "Social Immunity" that the topic was seriously considered. Empirical and theoretical work in social immunity continues to reveal not only new mechanisms of protection but also implications for understanding of the evolution of group living and polyandry.
Liselotte Sundström is a Finnish zoologist. She is professor of evolutionary biology at the University of Helsinki.
Seirian Sumner FRES is an Entomologist and Behavioural Ecologist in the UK. She is a Professor at University College London and is an expert in social wasps.