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{{Short description|Two or more species influencing each other's evolution}}{{Good article}}File:Dasyscolia ciliata.jpg|thumb|upright=1.5|The pollinating wasp Dasyscolia ciliata in pseudocopulation with a flower of Ophrys speculumOphrys speculum{{Evolutionary biology}}In biology, coevolution occurs when two or more species reciprocally affect each other's evolution.Charles Darwin mentioned evolutionary interactions between flowering plants and insects in On the Origin of Species (1859). The term coevolution was coined by Paul R. Ehrlich and Peter H. Raven in 1964. The theoretical underpinnings of coevolution are now well-developed, and demonstrate that coevolution can play an important role in driving major evolutionary transitions such as the evolution of sexual reproduction or shifts in ploidy.BOOK, Nuismer, Scott, 2017, Introduction to Coevolutionary Theory,weblink New York, W.F. Freeman, 395, 978-1-319-10619-5, More recently, it has also been demonstrated that coevolution influences the structure and function of ecological communities as well as the dynamics of infectious disease.Each party in a coevolutionary relationship exerts selective pressures on the other, thereby affecting each other's evolution. Coevolution includes many forms of mutualism, host-parasite, and predator-prey relationships between species, as well as competition within or between species. In many cases, the selective pressures drive an evolutionary arms race between the species involved. Pairwise or specific coevolution, between exactly two species, is not the only possibility; in guild or diffuse coevolution, several species may evolve a trait in reciprocity with a trait in another species, as has happened between the flowering plants and pollinating insects such as bees, flies, and beetles.Coevolution is primarily a biological concept, but researchers have applied it by analogy to fields such as computer science, sociology, and astronomy.


Coevolution is the evolution of two or more species which reciprocally affect each other, sometimes creating a mutualistic relationship between the species. Such relationships can be of many different types.BOOK, Coevolution, Douglas J. Futuyma, Futuyma, D. J. and M. Slatkin (editors), 1983, Sinauer Associates, 978-0-87893-228-3, whole book, BOOK, The Coevolutionary Process, Thompson, J. N., 1994, University of Chicago Press, 978-0-226-79759-5, whole book,

Flowering plants

Flowers appeared and diversified relatively suddenly in the fossil record, creating what Charles Darwin described as the "abominable mystery" of how they had evolved so quickly; he considered whether coevolution could be the explanation.JOURNAL, Friedman, W. E., January 2009, The meaning of Darwin's 'abominable mystery', Am. J. Bot., 96, 1, 5–21, 10.3732/ajb.0800150,weblink 21628174, He first mentioned coevolution as a possibility in On the Origin of Species, and developed the concept further in Fertilisation of Orchids (1862).BOOK, John N., Thompson, The coevolutionary process, University of Chicago Press, Chicago, 1994, 978-0-226-79760-1,weblink 2009-07-27, BOOK, Darwin, Charles, 1859, On the Origin of Species, 1st, London, John Murray,weblink 2009-02-07, BOOK, Darwin, Charles, 1877, On the various contrivances by which British and foreign orchids are fertilised by insects, and on the good effects of intercrossing, London, John Murray, 2nd,weblink 2009-07-27,

Insects and entomophilous flowers

{{Further|Entomophily}}File:Apis mellifera - Melilotus albus - Keila.jpg|thumb|upright|Honey bee taking a reward of nectar and collecting pollen in its pollen baskets from white melilot flowers]]Modern insect-pollinated (entomophilous) flowers are conspicuously coadapted with insects to ensure pollination and in return to reward the pollinators with nectar and pollen. The two groups have coevolved for over 100 million years, creating a complex network of interactions. Either they evolved together, or at some later stages they came together, likely with pre-adaptations, and became mutually adapted.JOURNAL, Lunau, Klaus, Adaptive radiation and coevolution — pollination biology case studies, Organisms Diversity & Evolution, 2004, 4, 3, 207–224, 10.1016/j.ode.2004.02.002, BOOK, Pollan, Michael, The Botany of Desire: A Plant's-eye View of the World, Bloomsbury, 978-0-7475-6300-6, The Botany of Desire, 2003, The term coevolution was coined by Paul R. Ehrlich and Peter H. Raven in 1964, to describe the evolutionary interactions of plants and butterflies.JOURNAL, Ehrlich, Paul R., Paul R. Ehrlich, Raven, Peter H., Peter H. Raven, 1964, Butterflies and Plants: A Study in Coevolution, Evolution, 18, 4, 586–608, 10.2307/2406212, 2406212, Several highly successful insect groups—especially the Hymenoptera (wasps, bees and ants) and Lepidoptera (butterflies) as well as many types of Diptera (flies) and Coleoptera (beetles)—evolved in conjunction with flowering plants during the Cretaceous (145 to 66 million years ago). The earliest bees, important pollinators today, appeared in the early Cretaceous.WEB, Coevolution of angiosperms and insects,weblink University of Bristol Palaeobiology Research Group, 16 January 2017, A group of wasps sister to the bees evolved at the same time as flowering plants, as did the Lepidoptera. Further, all the major clades of bees first appeared between the middle and late Cretaceous, simultaneously with the adaptive radiation of the eudicots (three quarters of all angiosperms), and at the time when the angiosperms became the world's dominant plants on land.JOURNAL, Cardinal, Sophie, Danforth, Bryan N., Bees diversified in the age of eudicots, Proceedings of the Royal Society B, 2013, 10.1098/rspb.2012.2686, 280, 1755, 20122686, 23363629, 3574388, At least three aspects of flowers appear to have coevolved between flowering plants and insects, because they involve communication between these organisms. Firstly, flowers communicate with their pollinators by scent; insects use this scent to determine how far away a flower is, to approach it, and to identify where to land and finally to feed. Secondly, flowers attract insects with patterns of stripes leading to the rewards of nectar and pollen, and colours such as blue and ultraviolet, to which their eyes are sensitive; in contrast, bird-pollinated flowers tend to be red or orange. Thirdly, flowers such as some orchids mimic females of particular insects, deceiving males into pseudocopulation.BOOK, Leendert, van der Pijl, Calaway H., Dodson, Orchid Flowers: Their Pollination and Evolution, Chapter 11: Mimicry and Deception, University of Miami Press, Coral Gables, 1966, 129–141, 978-0-87024-069-0, The yucca, Yucca whipplei, is pollinated exclusively by Tegeticula maculata, a yucca moth that depends on the yucca for survival.JOURNAL, Pollination Partnerships Fact Sheet, Flora of North America, 2004, Claire, Hemingway, 1–2,weblink 2011-02-18, Yucca and Yucca Moth, The moth eats the seeds of the plant, while gathering pollen. The pollen has evolved to become very sticky, and remains on the mouth parts when the moth moves to the next flower. The yucca provides a place for the moth to lay its eggs, deep within the flower away from potential predators.JOURNAL, 10.1073/pnas.96.16.9178, Forty million years of mutualism: Evidence for Eocene origin of the yucca-yucca moth association, Proc. Natl. Acad. Sci. USA, August 1999, Olle, Pellmyr, 10430916, James Leebens-Mack, 96, 16, 17753, 9178–9183, 1999PNAS...96.9178P,

Birds and ornithophilous flowers

{{Further|Ornithophily}}File:Purple-throated carib hummingbird feeding.jpg|thumb|left|Purple-throated caribPurple-throated caribHummingbirds and ornithophilous (bird-pollinated) flowers have evolved a mutualistic relationship. The flowers have nectar suited to the birds' diet, their color suits the birds' vision and their shape fits that of the birds' bills. The blooming times of the flowers have also been found to coincide with hummingbirds' breeding seasons. The floral characteristics of ornithophilous plants vary greatly among each other compared to closely related insect-pollinated species. These flowers also tend to be more ornate, complex, and showy than their insect pollinated counterparts. It is generally agreed that plants formed coevolutionary relationships with insects first, and ornithophilous species diverged at a later time. There is not much scientific support for instances of the reverse of this divergence: from ornithophily to insect pollination. The diversity in floral phenotype in ornithophilous species, and the relative consistency observed in bee-pollinated species can be attributed to the direction of the shift in pollinator preference.JOURNAL, Kay, Kathleen M., Reeves, Patrick A., Olmstead, Richard G., Schemske, Douglas W., Rapid speciation and the evolution of hummingbird pollination in neotropical Costus subgenus Costus (Costaceae): evidence from nrDNA ITS and ETS sequences, American Journal of Botany, 2005, 92, 11, 1899–1910, 10.3732/ajb.92.11.1899, 21646107, Flowers have converged to take advantage of similar birds.JOURNAL, Convergence, Competition, and Mimicry in a Temperate Community of Hummingbird-Pollinated Flowers, Brown James H., Kodric-Brown Astrid, Ecology, 1979, 60, 5, 1022–1035, 10.2307/1936870, 1936870, Flowers compete for pollinators, and adaptations reduce unfavourable effects of this competition. The fact that birds can fly during inclement weather makes them more efficient pollinators where bees and other insects would be inactive. Ornithophily may have arisen for this reason in isolated environments with poor insect colonization or areas with plants which flower in the winter.JOURNAL, Cronk, Quentin, Ojeda, Isidro, Bird-pollinated flowers in an evolutionary and molecular context, Journal of Experimental Botany, 2008, 59, 4, 715–727, 10.1093/jxb/ern009, 18326865, Bird-pollinated flowers usually have higher volumes of nectar and higher sugar production than those pollinated by insects.JOURNAL, Geographical Aspects of Bird Flower Coevolution, with Particular Reference to Central America, Stiles, F. Gary, Annals of the Missouri Botanical Garden, 1981, 68, 2, 323–351, 10.2307/2398801, 2398801, This meets the birds' high energy requirements, the most important determinants of flower choice. In Mimulus, an increase in red pigment in petals and flower nectar volume noticeably reduces the proportion of pollination by bees as opposed to hummingbirds; while greater flower surface area increases bee pollination. Therefore, red pigments in the flowers of Mimulus cardinalis may function primarily to discourage bee visitation.JOURNAL, Schemske, Douglas W., Bradshaw, H.D., Pollinator preference and the evolution of floral traits in monkeyflowers (Mimulus), Proceedings of the National Academy of Sciences, 1999, 96, 21, 11910–11915, 10.1073/pnas.96.21.11910, 10518550, 1999PNAS...9611910S, 18386, In Penstemon, flower traits that discourage bee pollination may be more influential on the flowers' evolutionary change than 'pro-bird' adaptations, but adaptation 'towards' birds and 'away' from bees can happen simultaneously.JOURNAL, Castellanos, M. C., Wilson, P., Thomson, J.D., 'Anti-bee' and 'pro-bird' changes during the evolution of hummingbird pollination in Penstemon flowers, Journal of Evolutionary Biology, 2005, 17, 4, 876–885, 10.1111/j.1420-9101.2004.00729.x, 15271088, However, some flowers such as Heliconia angusta appear not to be as specifically ornithophilous as had been supposed: the species is occasionally (151 visits in 120 hours of observation) visited by Trigona stingless bees. These bees are largely pollen robbers in this case, but may also serve as pollinators.JOURNAL, Stein, Katharina, Hensen, Isabell, Potential Pollinators and Robbers: A Study of the Floral Visitors of Heliconia Angusta (Heliconiaceae) And Their Behaviour, Journal of Pollination Ecology, 2011, 4, 6, 39–47, 10.26786/1920-7603(2011)7, Following their respective breeding seasons, several species of hummingbirds occur at the same locations in North America, and several hummingbird flowers bloom simultaneously in these habitats. These flowers have converged to a common morphology and color because these are effective at attracting the birds. Different lengths and curvatures of the corolla tubes can affect the efficiency of extraction in hummingbird species in relation to differences in bill morphology. Tubular flowers force a bird to orient its bill in a particular way when probing the flower, especially when the bill and corolla are both curved. This allows the plant to place pollen on a certain part of the bird's body, permitting a variety of morphological co-adaptations.File:Ficus plant.jpg|thumb|A fig exposing its many tiny matured, seed-bearing gynoecia. These are pollinated by the fig wasp, Blastophaga psenesBlastophaga psenesOrnithophilous flowers need to be conspicuous to birds. Birds have their greatest spectral sensitivity and finest hue discrimination at the red end of the visual spectrum, so red is particularly conspicuous to them. Hummingbirds may also be able to see ultraviolet "colors". The prevalence of ultraviolet patterns and nectar guides in nectar-poor entomophilous (insect-pollinated) flowers warns the bird to avoid these flowers. Each of the two subfamilies of hummingbirds, the Phaethornithinae (hermits) and the Trochilinae, has evolved in conjunction with a particular set of flowers. Most Phaethornithinae species are associated with large monocotyledonous herbs, while the Trochilinae prefer dicotyledonous plant species.

Fig reproduction and fig wasps

The genus Ficus is composed of 800 species of vines, shrubs, and trees, including the cultivated fig, defined by their syconiums, the fruit-like vessels that either hold female flowers or pollen on the inside. Each fig species has its own fig wasp which (in most cases) pollinates the fig, so a tight mutual dependence has evolved and persisted throughout the genus.JOURNAL, Suleman, Nazia, Sait, Steve, Compton, Stephen G., Female figs as traps: Their impact on the dynamics of an experimental fig tree-pollinator-parasitoid community, Acta Oecologica, 62, 2015, 1–9, 10.1016/j.actao.2014.11.001, 2015AcO....62....1S,

Acacia ants and acacias

File:Ant - Pseudomyrmex species, on Bull Thorn Acacia (Acacia cornigera) with Beltian bodies, Caves Branch Jungle Lodge, Belmopan, Belize - 8505045055.jpg|thumb|Pseudomyrmex ant on bull thorn acacia (Vachellia cornigeraVachellia cornigeraThe acacia ant (Pseudomyrmex ferruginea) is an obligate plant ant that protects at least five species of "Acacia" (Vachellia){{efn|The acacia ant protects at least 5 species of "Acacia", now all renamed to Vachellia: V. chiapensis, V. collinsii, V. cornigera, V. hindsii, and V. sphaerocephala.}} from preying insects and from other plants competing for sunlight, and the tree provides nourishment and shelter for the ant and its larvae.BOOK, Hölldobler, Bert, Wilson, Edward O., The ants, Harvard University Press, 1990,weblink 978-0-674-04075-5, 532–533, WEB, National Geographic, Acacia Ant Video,weblink yes,weblink" title="">weblink 2007-11-07, Such mutualism is not automatic: other ant species exploit trees without reciprocating, following different evolutionary strategies. These cheater ants impose important host costs via damage to tree reproductive organs, though their net effect on host fitness is not necessarily negative and, thus, becomes difficult to forecast.JOURNAL, 10.1073/pnas.1006872107, Palmer TM, Doak DF, Stanton ML, Bronstein JL, Kiers ET, Young TP, Goheen JR, Pringle RM, 2010, Synergy of multiple partners, including freeloaders, increases host fitness in a multispecies mutualism, Proceedings of the National Academy of Sciences of the United States of America, 107, 40, 17234–9, 20855614, 2951420, 2010PNAS..10717234P, JOURNAL, Kinship and incompatibility between colonies of the acacia ant Pseudomyrex ferruginea, Behavioral Ecology and Sociobiology, Alex, Mintzer, Vinson, S.B., 17, 1, 75–78, 10.1007/bf00299432, 4599807, 1985,

Hosts and parasites

Parasites and sexually reproducing hosts

Host–parasite coevolution is the coevolution of a host and a parasite.JOURNAL, 10.1038/ng1202-569, Woolhouse, M. E. J., Webster, J. P., Domingo, E., Charlesworth, B., Levin, B. R., Biological and biomedical implications of the coevolution of pathogens and their hosts, Nature Genetics, December 2002, 12457190, 32, 4, 569–77,weblink A general characteristic of many viruses, as obligate parasites, is that they coevolved alongside their respective hosts. Correlated mutations between the two species enter them into an evolution arms race. Whichever organism, host or parasite, that cannot keep up with the other will be eliminated from their habitat, as the species with the higher average population fitness survives. This race is known as the Red Queen hypothesis.JOURNAL, Van Valen, L., 1973, A New Evolutionary Law, Evolutionary Theory, 1, 1–30, cited in: The Red Queen Principle The Red Queen hypothesis predicts that sexual reproduction allows a host to stay just ahead of its parasite, similar to the Red Queen's race in Through the Looking-Glass: "it takes all the running you can do, to keep in the same place".BOOK, Carroll, Lewis, Lewis Carroll, 1871, Through the Looking-glass: And what Alice Found There,weblink Macmillan, 1875, 42, it takes all the running you can do, to keep in the same place., The host reproduces sexually, producing some offspring with immunity over its parasite, which then evolves in response.JOURNAL, 10.1038/srep10004, Rabajante, J., etal, Red Queen dynamics in multi-host and multi-parasite interaction system, Scientific Reports, 2015, 5, 10004, 25899168, 4405699, 2015NatSR...510004R, The parasite–host relationship probably drove the prevalence of sexual reproduction over the more efficient asexual reproduction. It seems that when a parasite infects a host, sexual reproduction affords a better chance of developing resistance (through variation in the next generation), giving sexual reproduction variability for fitness not seen in the asexual reproduction, which produces another generation of the organism susceptible to infection by the same parasite.WEB, Sexual reproduction works thanks to ever-evolving host, parasite relationships, PhysOrg,weblink 7 July 2011, JOURNAL, Morran, L.T., Schmidt, O.G., Gelarden, I.A., Parrish, R.C. II, Lively, C.M., Running with the Red Queen: Host-Parasite Coevolution Selects for Biparental Sex, Science, 333, 6039, 216–8, 8 July 2011, Science.1206360, 2011Sci...333..216M, 10.1126/science.1206360, 21737739, 3402160, ENCYCLOPEDIA, Hogan, C. Michael, 2010,weblink Virus, Encyclopedia of Earth, Cutler Cleveland; Sidney Draggan, Coevolution between host and parasite may accordingly be responsible for much of the genetic diversity seen in normal populations, including blood-plasma polymorphism, protein polymorphism, and histocompatibility systems.JOURNAL, Anderson, R., May, R., October 1982, Coevolution of hosts and parasites, Parasitology, 85, 2, 411–426, 10.1017/S0031182000055360, 6755367, File:Reed warbler cuckoo.jpg|upright|thumb|Brood parasite: Eurasian reed warbler raising a common cuckoocommon cuckoo

Brood parasites

Brood parasitism demonstrates close coevolution of host and parasite, for example in some cuckoos. These birds do not make their own nests, but lay their eggs in nests of other species, ejecting or killing the eggs and young of the host and thus having a strong negative impact on the host's reproductive fitness. Their eggs are camouflaged as eggs of their hosts, implying that hosts can distinguish their own eggs from those of intruders and are in an evolutionary arms race with the cuckoo between camouflage and recognition. Cuckoos are counter-adapted to host defences with features such as thickened eggshells, shorter incubation (so their young hatch first), and flat backs adapted to lift eggs out of the nest.WEB, Weiblen, George D., Interspecific Coevolution,weblink Macmillan, May 2003, JOURNAL, Rothstein, S.I, 1990, A model system for coevolution: avian brood parasitism, Annual Review of Ecology and Systematics, 21, 481–508, 10.1146/annurev.ecolsys.21.1.481,

Antagonistic coevolution

Antagonistic coevolution is seen in the harvester ant species Pogonomyrmex barbatus and Pogonomyrmex rugosus, in a relationship both parasitic and mutualistic. The queens are unable to produce worker ants by mating with their own species. Only by crossbreeding can they produce workers. The winged females act as parasites for the males of the other species as their sperm will only produce sterile hybrids. But because the colonies are fully dependent on these hybrids to survive, it is also mutualistic. While there is no genetic exchange between the species, they are unable to evolve in a direction where they become too genetically different as this would make crossbreeding impossible.JOURNAL, Herrmann, M., Cahan, S. H., Inter-genomic sexual conflict drives antagonistic coevolution in harvester ants, Proceedings of the Royal Society B: Biological Sciences, 281, 1797, 29 October 2014, 10.1098/rspb.2014.1771, 25355474, 20141771, 4240986,

Predators and prey

File:Leopard kill - KNP - 001.jpg|thumb|left|Predator and prey: a leopard killing a bushbuckbushbuckPredators and prey interact and coevolve: the predator to catch the prey more effectively, the prey to escape. The coevolution of the two mutually imposes selective pressures. These often lead to an evolutionary arms race between prey and predator, resulting in anti-predator adaptations.WEB, Predator-Prey Relationships,weblink New England Complex Systems Institute, 17 January 2017, The same applies to herbivores, animals that eat plants, and the plants that they eat. In the Rocky Mountains, red squirrels and crossbills (seed-eating birds) compete for seeds of the lodgepole pine. The squirrels get at pine seeds by gnawing through the cone scales, whereas the crossbills get at the seeds by extracting them with their unusual crossed mandibles. In areas where there are squirrels, the lodgepole's cones are heavier, and have fewer seeds and thinner scales, making it more difficult for squirrels to get at the seeds. Conversely, where there are crossbills but no squirrels, the cones are lighter in construction, but have thicker scales, making it more difficult for crossbills to get at the seeds. The lodgepole's cones are in an evolutionary arms race with the two kinds of herbivore.WEB, Coevolution,weblink University of California Berkeley, 17 January 2017, and the two following pages of the web article.File:Drosophila.melanogaster.couple.2.jpg|thumb|upright|Sexual conflict has been studied in Drosophila melanogasterDrosophila melanogaster


Both intraspecific competition, with features such as sexual conflictJOURNAL, 10.1098/rstb.2005.1785, Sexual conflict over mating and fertilization: An overview, 2006, Parker, G. A., Philosophical Transactions of the Royal Society B: Biological Sciences, 361, 1466, 235–59, 16612884, 1569603, and sexual selection,WEB, Biol 2007 - Coevolution,weblink University College, London, 19 January 2017, and interspecific competition, such as between predators, may be able to drive coevolution.JOURNAL, Connell, Joseph H., Diversity and the Coevolution of Competitors, or the Ghost of Competition Past, Oikos, October 1980, 35, 2, 131–138, 10.2307/3544421, 3544421,

Guild or diffuse coevolution

(File:Amegilla cingulata on long tube of Acanthus ilicifolius flower.jpg|thumb|upright|Long-tongued bees and long-tubed flowers coevolved, whether pairwise or "diffusely" in groups known as guilds.)The types of coevolution listed so far have been described as if they operated pairwise (also called specific coevolution), in which traits of one species have evolved in direct response to traits of a second species, and vice versa. This is not always the case. Another evolutionary mode arises where evolution is still reciprocal, but is among a group of species rather than exactly two. This is called guild or diffuse coevolution. For instance, a trait in several species of flowering plant, such as offering its nectar at the end of a long tube, can coevolve with a trait in one or several species of pollinating insects, such as a long proboscis. More generally, flowering plants are pollinated by insects from different families including bees, flies, and beetles, all of which form a broad guild of pollinators which respond to the nectar or pollen produced by flowers.Juenger, Thomas, and Joy Bergelson. "Pairwise versus diffuse natural selection and the multiple herbivores of scarlet gilia, Ipomopsis aggregata." Evolution (1998): 1583–1592.BOOK, Gullan, P. J., Cranston, P. S., 2010, The Insects: An Outline of Entomology, Wiley, 4th, 978-1-118-84615-5, 291–293, JOURNAL, Rader, Romina, Bartomeus, Ignasi, etal, Non-bee insects are important contributors to global crop pollination, PNAS, 2016, 113, 1, 10.1073/pnas.1517092112, 26621730, 4711867, 146–151, 2016PNAS..113..146R,

Outside biology

Coevolution is primarily a biological concept, but has been applied to other fields by analogy.

In algorithms

{{See also|Evolutionary computation}}Coevolutionary algorithms are used for generating artificial life as well as for optimization, game learning and machine learning.Potter M. and K. De Jong, Evolving Complex Structures via Cooperative Coevolution, Fourth Annual Conference on Evolutionary Programming, San Diego, CA, 1995.Potter M., The Design and Computational Model of Cooperative Coevolution, PhD thesis, George Mason University, Fairfax, Virginia, 1997.JOURNAL, Potter, Mitchell A., De Jong, Kenneth A., Cooperative Coevolution: An Architecture for Evolving Coadapted Subcomponents, Evolutionary Computation, 2000, 8, 1, 1–29, 10.1162/106365600568086, 10753229,, Weigand P., Liles W., De Jong K., An empirical analysis of collaboration methods in cooperative coevolutionary algorithms. Proceedings of the Genetic and Evolutionary Computation Conference (GECCO) 2001.Weigand P., An Analysis of Cooperative Coevolutionary Algorithms, PhD thesis, George Mason University, Fairfax, Virginia, 2003. Daniel Hillis added "co-evolving parasites" to prevent an optimization procedure from becoming stuck at local maxima.{{citation |author=Hillis, W.D. |year=1990 |title=Co-evolving parasites improve simulated evolution as an optimization procedure |journal=Physica D: Nonlinear Phenomena |volume=42 |issue=1–3 |pages=228–234 |url=|doi=10.1016/0167-2789(90)90076-2|bibcode=1990PhyD...42..228H}} Karl Sims coevolved virtual creatures.WEB, Sims, Karl, Evolved Virtual Creatures,weblink Karl Sims, 17 January 2017, 1994,

In architecture

The concept of coevolution was introduced in architecture by the Danish architect-urbanist Henrik Valeur as an antithesis to the concept of "star-architecture".WEB,weblink Henrik Valeur's biography, 2015-08-29, As the curator of the Danish Pavilion at the 2006 Venice Biennale of Architecture he conceived and orchestrated the exhibition-project CO-EVOLUTION: Danish/Chinese Collaboration on Sustainable Urban Development in China, which was awarded the Golden Lion for Best National Pavilion.WEB,weblink About CO-EVOLUTION, Danish Architecture Centre, 2015-08-29, yes,weblink" title="">weblink 2015-11-20, The exhibition included urban planning projects for the cities of Beijing, Chongqing, Shanghai, and Xi'an, which had been developed in collaboration between young professional Danish architects and architecture students and professors and students of architecture from the four Chinese cities.WEB,weblink An interview with Henrik Valeur, Movingcities, 2015-10-17, 2007-12-17, By creating a framework for collaboration between academics and professionals representing two distinct cultures, it was hoped that the exchange of knowledge, ideas and experiences would stimulate "creativity and imagination to set the spark for new visions for sustainable urban development."BOOK, Valeur, Henrik, CO-EVOLUTION: Danish/Chinese Collaboration on Sustainable Urban Development in China, Danish Architecture Centre, 2006, Copenhagen, 978-87-90668-61-7, 12, Valeur later argued that: "As we become more and more interconnected and interdependent, human development is no longer a matter of the evolution of individual groups of people but rather a matter of the co-evolution of all people."BOOK, Valeur, Henrik, India: the Urban Transition - a Case Study of Development Urbanism, Architectural Publisher B, 2014, 978-87-92700-09-4, India: the Urban Transition, 22, At the School of Architecture, Planning and Landscape, Newcastle University, a coevolutionary approach to architecture has been defined as a design practice that engages students, volunteers and members of the local community in practical, experimental work aimed at "establishing dynamic processes of learning between users and designers."JOURNAL, Farmer, Graham, 2017, From Differentiation to Concretisation: Integrative Experiments in Sustainable Architecture, Societies, 3, 35, 18, 10.3390/soc7040035,

In cosmology and astronomy

In his book The Self-organizing Universe, Erich Jantsch attributed the entire evolution of the cosmos to coevolution.In astronomy, an emerging theory proposes that black holes and galaxies develop in an interdependent way analogous to biological coevolution.JOURNAL, Gnedin, Oleg Y., etal, Co-Evolution of Galactic Nuclei and Globular Cluster Systems, The Astrophysical Journal, 785, 1, 10.1088/0004-637X/785/1/71, 2014ApJ...785...71G, 71, 1308.0021, 2014, -->

In technology

{{Further|Software ecosystem}}Computer software and hardware can be considered as two separate components but tied intrinsically by coevolution. Similarly, operating systems and computer applications, web browsers, and web applications.All of these systems depend upon each other and advance step by step through a kind of evolutionary process. Changes in hardware, an operating system or web browser may introduce new features that are then incorporated into the corresponding applications running alongside.Theo D'Hondt, Kris De Volder, Kim Mens and Roel Wuyts, Co-Evolution of Object-Oriented Software Design and Implementation, TheKluwer International Series in Engineering and Computer Science, 2002, Volume 648, Part 2, 207–224 {{doi|10.1007/978-1-4615-0883-0_7}} The idea is closely related to the concept of "joint optimization" in sociotechnical systems analysis and design, where a system is understood to consist of both a "technical system" encompassing the tools and hardware used for production and maintenance, and a "social system" of relationships and procedures through which the technology is tied into the goals of the system and all the other human and organizational relationships within and outside the system. Such systems work best when the technical and social systems are deliberately developed together.JOURNAL, Cherns, A., 1976, The principles of sociotechnical design, Human Relations, 29, 8, 8, 10.1177/001872677602900806,

In sociology

In Development Betrayed: The End of Progress and A Coevolutionary Revisioning of the Future (1994)BOOK, Norgaard, Richard B., Development Betrayed: The End of Progress and a Coevolutionary Revisioning of the Future, 1994, Routledge, Richard Norgaard proposes a coevolutionary cosmology to explain how social and environmental systems influence and reshape each other.JOURNAL, Glasser, Harold, 1996, Development Betrayed: The End of Progress and A Coevolutionary Revisioning of the Future by Richard B. Norgaard, Environmental Values, 5, 3, 267–270, 30301478, In Coevolutionary Economics: The Economy, Society and the Environment (1994) John Gowdy suggests that: "The economy, society, and the environment are linked together in a coevolutionary relationship".BOOK, Gowdy, John, Coevolutionary Economics: The Economy, Society and the Environment, 1994, Springer, 1–2,

See also





External links

{{Evolutionary psychology}}

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