John Endler | |
---|---|
Born | John Arthur Endler 1947 (age 76–77) |
Alma mater | University of Edinburgh (PhD) |
Scientific career | |
Fields | |
Thesis | A Study of Morph-Ratio Clines (1973) |
Doctoral advisor | Bryan Clarke |
John Arthur Endler FRS (born 1947) is a Canadian ethologist and evolutionary biologist noted for his work on the adaptation of vertebrates to their unique perceptual environments, and the ways in which animal sensory capacities and colour patterns co-evolve.
Born in Canada, Endler took his PhD degree at the University of Edinburgh in Scotland.[ citation needed ]
After his PhD, Endler worked at Princeton University (1973-1979), the University of Utah (1979-1986), the University of California, Santa Barbara (1986-2006), the James Cook University of North Queensland, Australia and is currently working at Deakin University in Victoria, Australia. In 2006 he was appointed as an Anniversary Professor of Animal Behaviour in the School of Psychology at the University of Exeter, England. In 2007 he was elected as a Fellow of the American Academy of Arts and Sciences. In 2009 he joined the Centre for Integrative Biology at Deakin University (Australia) where he is an Alfred Deakin Professor.
Endler has carried out extensive work on guppies, including in 1975 rediscovering the species now known to aquarists as Endler's guppy, in his honour; this brightly coloured fish is sometimes regarded as a geographical variant of the common guppy Poecilia reticulata, but is now usually treated as a separate species, Poecilia wingei. [1] Although it had been recorded before Endler's discovery, it had not been properly studied and documented. Among biologists, however, he is better known for his experimental work on inducing small-scale evolution in the laboratory. In addition to his work on guppies he has studied many other species, including investigating the bower-building behaviour of bowerbirds in North Queensland, Australia.
In 2008 the European Research Council announced that he was among the first cohort of Life Scientists to receive an award under its Advanced Grants scheme. [2]
In 2012 he was elected a Fellow of the Australian Academy of Science. [3]
In April 2020 Endler was elected a Fellow of the Royal Society (FRS). [4]
In 2021, he and Susanne von Caemmerer were jointly awarded the inaugural Suzanne Cory Medal for Biomedical Sciences. [5]
Endler's work on evolution in trinidadian guppies was highlighted in the 1995 popular science book The Beak of the Finch.
Nikolaas "Niko" Tinbergen was a Dutch biologist and ornithologist who shared the 1973 Nobel Prize in Physiology or Medicine with Karl von Frisch and Konrad Lorenz for their discoveries concerning the organization and elicitation of individual and social behavior patterns in animals. He is regarded as one of the founders of modern ethology, the study of animal behavior.
Poecilia is a genus of fishes in the family Poeciliidae of the order Cyprinodontiformes. These livebearers are native to fresh, brackish and salt water in the Americas, and some species in the genus are euryhaline. A few have adapted to living in waters that contain high levels of toxic hydrogen sulfide and a population of P. mexicana lives in caves.
Helen Rodd is a Canadian zoologist who is a professor of Ecology and Evolutionary Biology at the University of Toronto.
Vero Copner Wynne-Edwards, CBE, FRS, FRSE was an English zoologist. He was best known for his advocacy of group selection, the theory that natural selection acts at the level of the group.
Graham Arthur Charlton Bell is a British academic, writer, and evolutionary biologist with interests in the evolution of sexual reproduction and the maintenance of variation. He developed the "tangled bank" theory of evolutionary genetics after observing the asexual and sexual behaviour patterns of aphids as well as monogonont rotifers.
The spotted catbird is a species of bowerbird (Ptilonorhynchidae) which can be found in north Queensland, the eastern Moluccas and New Guinea. Although it is a member of the bowerbird family it does not build a bower.
Poecilia wingei, known to aquarists as Endlers or Endler's livebearer, in the genus Poecilia, is a small fish native to the Paria Peninsula in Venezuela. They are prolific breeders and often hybridize with guppies. These very colorful hybrids are the easiest to find being offered in pet-shops, typically under the name Endler's guppy.
Mate choice is one of the primary mechanisms under which evolution can occur. It is characterized by a "selective response by animals to particular stimuli" which can be observed as behavior. In other words, before an animal engages with a potential mate, they first evaluate various aspects of that mate which are indicative of quality—such as the resources or phenotypes they have—and evaluate whether or not those particular trait(s) are somehow beneficial to them. The evaluation will then incur a response of some sort.
Micropoecilia is a genus of poeciliids native to fresh and brackish water from the Amazon Basin to Trinidad. While recognized as valid by FishBase, others have considered this genus as being synonymous with Poecilia.
A courtship display is a set of display behaviors in which an animal, usually a male, attempts to attract a mate; the mate exercises choice, so sexual selection acts on the display. These behaviors often include ritualized movement ("dances"), vocalizations, mechanical sound production, or displays of beauty, strength, or agonistic ability.
Timothy Hugh Clutton-Brock is a British zoologist known for his comparative studies of the behavioural ecology of mammals, particularly red deer and meerkats.
The guppy, also known as millionfish or the rainbow fish, is one of the world's most widely distributed tropical fish and one of the most popular freshwater aquarium fish species. It is a member of the family Poeciliidae and, like almost all American members of the family, is live-bearing. Guppies originate from northeast South America, but have been introduced to many environments and are now found all over the world. They are highly adaptable and thrive in many different environmental and ecological conditions. Male guppies, which are smaller than females, have ornamental caudal and dorsal fins. Wild guppies generally feed on a variety of food sources, including benthic algae and aquatic insect larvae. Guppies are used as a model organism in the fields of ecology, evolution, and behavioural studies.
Mate-choice copying, or non-independent mate choice, occurs when an individual of an animal species copies another individual's mate choice. In other words, non-independent mate-choice is when an individual's sexual preferences get socially inclined toward the mate choices of other individuals. This behavior is speculated to be one of the driving forces of sexual selection and the evolution of male traits. It is also hypothesized that mate-choice copying can induce speciation due to the selective pressure for certain, preferred male qualities. Moreover, mate-choice copying is one form of social learning in which animals behave differently depending on what they observe in their surrounding environment. In other words, the animals tend to process the social stimuli they receive by observing the behavior of their conspecifics and execute a similar behavior to what they observed. Mate choice copying has been found in a wide variety of different species, including : invertebrates, like the common fruit fly ; fish, such as guppies and ocellated wrasse; birds, like the black grouse; and mammals, such as the Norway rat and humans. Most studies have focused on females, but male mate copying has been also found in sailfin mollies and humans.
Joseph A. Travis is an American Professor of Biological Science and past Dean of the College of Arts & Sciences at Florida State University.
Svetha Venkatesh is one of the top 15 women in the world in Artificial Intelligence. She is Indian/Australian and is an Alfred Deakin Professor in the Faculty of Science, Engineering & Built Environments, in the Department of Pattern Recognition and Data Analytics at Deakin University, as well as a professor of computer science and director of the Centre for Pattern Recognition and Data Analytics (PRaDA) at Deakin. She was elected a Fellow of the International Association of Pattern Recognition in 2004 for her contributions to the "formulation and extraction of semantics in multimedia data". She was also elected a Fellow of the Australian Academy of Technological Sciences and Engineering in 2006 and an ARC Laureate Fellow in June 2017. She was elected a Fellow of the Australian Academy of Science in May 2021.
Thavamani Jegajothivel Pandian, a retired professor of Madurai Kamaraj University (MKU), is an Indian geneticist and ecologist, known for his pioneering studies in bioenergetics and animal ecology. A recipient of the WorldFish Naga Award, he is a former chairman of the Task Force Committee on Aqua and Marine Biotechnology of the Department of Biotechnology of the Government of India, a former president and a fellow of The World Academy of Sciences and an elected fellow of the Indian National Science Academy, National Academy of Sciences, India, Indian Academy of Sciences and the National Academy of Agricultural Sciences. The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards, in 1984, for his contributions to biological sciences.
Lars Chittka, FLS, FRES, FRSB is a German zoologist, ethologist and ecologist distinguished for his work on the evolution of sensory systems and cognition, using insect-flower interactions as a model.
Ruth Geyer Shaw is a professor and principal investigator in the Department of Ecology, Evolution and Behavior at the University of Minnesota. She studies the processes involved in genetic variation, specializing in plant population biology and evolutionary quantitative genetics. Her work is particularly relevant in studying the effects of stressors such as climate instability and population fragmentation on evolutionary change in populations. She has developed and applied new statistical methods for her field and is considered a leading population geneticist.
Communication occurs when an animal produces a signal and uses it to influences the behaviour of another animal. A signal can be any behavioural, structural or physiological trait that has evolved specifically to carry information about the sender and/or the external environment and to stimulate the sensory system of the receiver to change their behaviour. A signal is different from a cue in that cues are informational traits that have not been selected for communication purposes. For example, if an alerted bird gives a warning call to a predator and causes the predator to give up the hunt, the bird is using the sound as a signal to communicate its awareness to the predator. On the other hand, if a rat forages in the leaves and makes a sound that attracts a predator, the sound itself is a cue and the interaction is not considered a communication attempt.
The sensory drive hypothesis is a hypothesis in population ecology that posits that when local environmental conditions differ between conspecific populations, communication systems will adapt to these conditions. Sensory drive predicts that both communication signals and perceptual systems will adapt to these local environmental conditions. Divergence will then occur based on the intensity and direction of selection on the mating signals and on the sensory systems acquiring information regarding predators, prey, and potential mates.