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Lek (animal behavior) - Wikipedia, the free encyclopedia Exploded leks rely on vocal signals, the most famous example is the "booming" behaviour of the Kakapo, where distances between individuals can be up to many kilometers due to the deep far-carrying call. There is some dispute among ethologists as to whether the lekking behaviour shown by animals of widely different groups should really be treated as the same, and in particular whether similar selective pressures have led to their emergence. Lek paradox: persistent female choice for particular male trait values should erode genetic variance in male traits and thereby remove the benefits of choice; and yet choice persists. en.wikipedia.org /wiki/Lek_(animal_behavior)   (403 words)

Encyclopedia: Lek (animal behavior) Ethology is the scientific study of animal behavior considered as a branch of zoology. LEK is a TLA The TLA (t hree- l etter a bbreviation or a cronym) is the most popular type of abbreviation in computing and telecom terminology and Internet slang, and is also common in political jargon. The Lek (animal behavior) A lek (from Swedish lek, a noun which typically denotes pleasurable and less rule-bound games and activities) is a gathering of the males of certain species of animals for the purposes of competitive mating display. www.nationmaster.com /encyclopedia/Lek-(animal-behavior)   (1136 words)

Lek - Wikipedia, the free encyclopedia Lek (animal behavior), a type of competition in which males of a certain species gather to demonstrate their prowess before or during mating season Lek River, a river in the west of the Netherlands Lek, a form of Cardassian currency in the Star Trek fictional universe en.wikipedia.org /wiki/Lek   (119 words)

Behavior Behavior Behavior is the American spelling of behaviour, derived from the verb behave, from the prefix be- and the verb... Experimental analysis of behavior The Experimental Analysis of Behavior is the name given to the approach to operant con... Herd behavior Herd behaviour is the term used to describe situations in which the individuals of any particular group re... www.brainyencyclopedia.com /topics/behavior.html   (388 words)

wiki/Lek (animal behavior) Definition / wiki/Lek (animal behavior) Research   (Site not responding. Last check: 2007-10-22) A lek (from Swedish lek, a noun which typically denotes pleasurable and less rule-bound games and activities) is a tournament (the malesThe word male has the following meanings: In biology, it refers to one half of a heterogamous reproduction system, where the female is the other half. In classical leks, individuals are in sight of each other, physical contest is not infrequent or even prevalent in some (mainly shorebird and gamebird) species. There is some dispute among ethologistsEthology is the scientific study of animal behaviour (particularly of social animals such as primates and canids), and is a branch of zoology. www.elresearch.com /wiki/Lek_(animal_behavior)   (882 words)

Animal Behavior Lek Animal and Human Behavior Research And Teaching Interests Of Dr. Paul J. Watson, Univ. Of New Mexico. In the study of animal behavior, local geographic variants of bird songs, honeybee waggle dances, and other displays... a female approaches the lek, a new behavior is performed at high... www.animalsnpets.com /pets/animal-behavior-lek.html   (439 words)

Animal and Human Behavior - Paul J. Watson Behavioral ecology is essentially the analysis of animal and human mental design from the combined perspectives of ecology and In my work with animals, I focus on interdisciplinary studies of invertebrates designed to reveal the information content of sexual signals and thus the adaptive significance of decision rules used to choose mates and determine which mates contribute genetically to offspring. Established lab for protein electrophoresis, and performed paternity studies for doctoral research and population genetic analyses of the social spiders Stegodyphus dumicola and S. biology.unm.edu /biology/pwatson/public_html/pjw_cv.htm   (2742 words)

Evolution: Library: Bachelor Uncles Related male peacocks "lek," or gather together and perform their displays, in order to attract mates and ensure that their genes are passed on. This never-say-die behavior was puzzling because it seemed to make no sense in evolutionary terms -- and biologists assume that if a behavior persists, it must provide some competitive edge. The "bachelor uncles," by adding their dancing -- or even their mere presence -- to the lek, were boosting the odds that genes related to theirs would be passed on to succeeding generations. www.pbs.org /wgbh/evolution/library/01/6/l_016_03.html   (463 words)

Animal Behavior Holley's assignment is to a choose a species of interest and write a research paper on social behavior in your chosen organism or species. Click here for a list of materials on animal behavior and general species data. Animal Diversity Web A "wickipedia" containing thousands of species accounts written by students. www.andover.edu /library/courseguides/ay2005/BIOL420/BIOL420f04mrb1.htm   (678 words)

Behavioral Ecology Summer Field Course Behavioral ecology is the study of animal minds, their functionally related morphological and physiological traits, and the relation of the body/mind's design features to historical and current forces of natural selection. Evolutionary analysis of behavior will be emphasized together with techniques for capturing, handling, marking and observing animals in naturalistic and experimental contexts enabling testing of hypotheses about the behavior's adaptive function. After preliminary observation of the animals and behaviors in question, the student who wishes to attempt an original project should meet with the professor and intern to discuss the feasibility and design of the research. biology.unm.edu /Biology/pwatson/public_html/ab.htm   (3069 words)

Animal Behavior Type Cognitive Ethology and the Explanation of Nonhuman Animal Behavior Ethology and the Explanation of Nonhuman Animal Behavior. More to the point, a student of animal behavior uses similar skills of observation when they study their... www.animalsnpets.com /pets/animal-behavior-type.html   (609 words)

FIELD STUDIES OF ANIMAL BEHAVIOR This course is designed to the teachers and students with experience performing professional quality held and lab research in behavioural ecology. The course is intended for students who wish move beyond the usual undergraduate role of the active scientist: a creator of new verifiable knowledge. Students in charge of caring for captive animal will be expected to care for them meticulously throughout the week and to arrange for another students to take over this responsibility on days when this is impossible. www.ugr.es /~jmperez/Groups1/Grupo4.htm   (1228 words)

[No title]   (Site not responding. Last check: 2007-10-22) Animal psychologists were trained as psychologists, studied mainly mammals, and especially lab rats. Wiping behavior seems to depend on amnionic fluid -- thus it drops off at birth, once the animal is born. Animals are less agressive to their relatives, more likely to cooperate, less likely to trespass on relatives' territory. www.cis.upenn.edu /~edloper/ebibles/9.20/9.20.notes   (21172 words)

Sample text for Library of Congress control number 00059286 Behavioral biologists have long argued, as did Darwin himself, that the theory of natural selection is applicable not only to how an organism looks (anatomy, morphology, physiology), but to how it behaves as well. Romanes was one of the first psychologists to do detailed studies of animal intelligence, but for our purposes, his importance lies in the fact that he did pioneering work in the area of imitation, and his work showed that animals use techniques like imitation to transmit information. This means that the behavior of a single individual can potentially shift the behavior patterns seen in an entire population, all in the time span of less than a lifetime. www.loc.gov /catdir/samples/simon031/00059286.html   (5635 words)

Ethological studies of sign stimuli and motivation   (Site not responding. Last check: 2007-10-22) Hopefully you will begin to appreciate that an animal's view the world in a very different way from ours - the dog lives in a 'smelly world', the owl lives in a nocturnal world of rustlings etc. - and how ethological techniques can be used to understand these worlds. Behaviour is modified as a result of the animal's environment - it is not always triggered in the presence of the external stimulus. Some animals - such as red squirrels and dormice - also have these characteristics that make them particularly attractive to humans and they often appear as 'loveable' characters in books for children or as soft toys. salmon.psy.plym.ac.uk /year1/ETHEXPT.HTM   (5898 words)

University of Nebraska School of Biological Sciences   (Site not responding. Last check: 2007-10-22) Leks are clusters of territorial males visited by females for mating and are a focus for debate about the nature of sexual selection due to the extraordinary opportunities they provide for female choice and reproductive competition among males. Ongoing studies of sage grouse includes analyses of (i) mating patterns and the genetic structure of social groups using microsatellite DNA markers and (ii) the influence of predation on male behavior at leks. We are also analyzing the ecological and behavioral mechanisms underlying the unusual phenomenon of mixed species lek formation by prairie chickens and sharp-tailed grouse. www.biosci.unl.edu /faculty/gibson.asp   (376 words)

Chapter 22: Animal Behavior   (Site not responding. Last check: 2007-10-22) Behavior is an observable coordinated response to environmental stimuli. Behaviors formerly thought to be fixed action patterns develop after practice. Reproductive behavior of males and females is related to their anatomy and physiology. www.sirinet.net /~jgjohnso/apbio22.html   (1848 words)

Graduate Seminars in Animal Behavior Many in animal behavior ignore this problem of animal consciousness completely, so I think it would be good to try to come to grips with it. I also find the question of animal consciousness intriguing because it is strongly tied up with issues of anthropomorphism, the use of language and metaphors and with understanding the Umwelt of animals, all issues of interest for animal behaviorists. Examples include sneaker and parental males in bluegill sunfish, shy and bold behavior in guppies, calling and non-calling males in crickets, producers and scroungers in flocks of pigeons and dominant and subordinate behavior in social mammals. www.zoo.ufl.edu /hjb/pages/ABSeminars.html   (1246 words)

Lecture 12 Outline Animal behavior involves coordinated responses to external and internal stimuli, using interactions among nervous, endocrine, and skeletal-muscular systems. In instinct behavior, components of the nervous system allow an animal to accomplish complex, pre-wired, stereotyped responses to certain sign stimuli (cues); when certain sign stimuli are recognized, fixed action pattern follows. Classical conditioning: animals learn to associate a stimulus (such as a bell) with food and later salivate at the sound without the presence of food. orca.st.usm.edu /~rdarden/outline12.html   (968 words)

CISAB | Fall 2000 Graduate Seminar (A501/L501)   (Site not responding. Last check: 2007-10-22) Behavioral Ecology is still a young discipline whose goal is to explain why animals look, behave, and distribute themselves as they do. Similarly, an understanding of behavioral mechanisms is incomplete without an appreciation of the adaptive significance and phylogenetic origins of behavior. The highlight of this year's class will be the four outstanding behavioral ecologists who will visit the campus, meet with you individually, and use class-time to describe their research. www.indiana.edu /~animal/academics/seminars/A501_F00.html   (1609 words)

Amazon.com: Animal Behavior: An Evolutionary Approach: Books: John Alcock   (Site not responding. Last check: 2007-10-22) It is distinguished by its balanced treatment of both the underlying mechanisms and evolutionary causes of behavior, and stresses the utility of evolutionary theory in unifying the different behavioral disciplines. Making the point that each behavioral trait has an evolutionary history as well as potential current adaptive significance, the author examines the history and adaptive value of various categories of behavior, including evasion of predators, reproductive tactics and social behavior. One of its strengths is that, unlike some texts in behavioral ecology, it provides good coverage of the proximate mechanisms underlying patterns of animal behavior. www.amazon.com /exec/obidos/tg/detail/-/0878930116?v=glance   (2106 words)

Wikinfo | Lek (animal behavior)   (Site not responding. Last check: 2007-10-22) A lek (from Swedish lek, a noun which typically denotes pleasurable and less rule-bound games and activities) is a gathering of the males of certain species of animals for the purposes of competitive mating display. The places where leks occur are often the same from one mating season to the next, and are known as lek sites. The term was originally used most commonly for Black Grouse (orrlek) and for Capercaillie (tjäderlek), and lekking behaviour is quite common in birds of this type, such as Sage Grouse. www.wikinfo.org /wiki.php?title=Lek_(animal_behavior)   (261 words)

ITEC Courses in Animal Behavior   (Site not responding. Last check: 2007-10-22) The ideas, methods, and practical knowledge acquired in the first half will be used and synthesized in the second half of the course in which each student designs and carries out his or her own research project. Due to the presence of both marine and terrestrial habitats at the Bocas del Toro Biological Station, the number of potential behavioral subjects is immense, and ranges from mammals, amphibians, reptiles, birds, and insects and other arthropods in terrestrial ecosystems to fishes, turtles, dolphins, mollusks, echinoderms, and crustaceans in marine ecosystems. Godwin, J. Behavioral aspects of protandrous sex-change in the anemonefish, Amphiprion melanopus, and endocrine correlates. www.itec-edu.org /behavior.html   (848 words)

ABMCourtship Traditional use of deer yards is due to an innate preference for ______ despite the shortage of _____. Behavior includes all those processes by which an animal senses the external world and the internal state of its body, and responds to changes which it perceives. Psychological - concerned with the behavior itself and those factors in the animal's environment and history which affect the development and performance of overt behavior. www.wec.ufl.edu /academics/courses/wis4934/Fall-98/ABMCourtship.htm   (848 words)

[No title] Candidates must have a Ph.D. (or equivalent) in the biological sciences or related fields, and are expected to have a strong record of research in animal behavior, preferably on topics related to ecological and evolutionary issues. Subject: Field assistants needed RESEARCH ASSISTANTS are needed for a NSF-funded field study of the effects of predators on the lek mating behavior of Greater prairie chickens and Sharp-tailed grouse in the sand hills of north-central Nebraska from late-March until early May 2004. Current behavioral research topics range from animal visibility to enrichment evaluation to social dynamics of species ranging from mandrills to hippos. www.animalbehavior.org /pipermail/absnet/Week-of-Mon-20040105.txt   (4063 words)

Ch. 22 Behavior evolves to adapt individual to reproduce, capture resources, avoid predators. Communication is an action (signal) by a sender that influences the behavior of a receiver. Sociobiology is application of evolutionary biology principles to the study of social behavior in animals. howard.nebrwesleyan.edu /hhmi/fellows/awasmoen/mader22.html   (1697 words)

Bucknell University - Animal Behavior Birds My research interests fall under the general headings of behavioral ecology and conservation biology, with an emphasis on mating systems, brood parasitism, demography, and life history evolution. In each of these areas, I focus on the fitness consequences of social interactions among animals and the manner in which those fitness consequences can affect both evolution in natural populations and strategies for successful conservation. One topic that particularly intrigues me is the potential for an individual to exhibit "retaliatory" behavior in response to low parental effort by its mate. www.bucknell.edu /Academics/Academic_Programs/Animal_Behavior/Facilities_Resources/Birds.html   (595 words)

Biology Department An experimental analysis of the vocal behavior of female Red-winged Blackbirds. Sentinel behavior in the Red-winged Blackbird (Agelaius phoeniceus) (with W.E. Richmond) Exploring animal behavior in laboratory and field: an ABS-sponsored laboratory manual (with B. Ploger). www.beloit.edu /~biology/ken_yasukawa/pubs.html   (1527 words)

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