Washington University In St. Louis Magazine Losos primary focus is on the Caribbeanbased anolis lizards. These lizards are particularly well suited to evolutionary studies, being at once http://magazine.wustl.edu/Winter03/JonathanLosos.htm
Extractions: Exposing Evolutionary Answers Professor Jonathan Losos (left) and his research team, including doctoral student Jason Kolbe, study species in their natural habitat, so none exist in their lab. However, the lab is not free from denizens; on Losos' arm is Grendel, a prehensile-tailed skink. Professor Jonathan Losos and members of his research team study lizards to understand the origins of diversification and how organisms survive. by Janni Simner J As professor of biology in Arts & Sciences at Washington University, Losos uses lizards to integrate questions of ecology and evolution. He seeks to better understand how organisms survive in their present-day environments, how they've changed over time to fit into those environments, and how they're continuing to change. "We can't go back in time," Losos says, "but we can see what happens today." And, if one sees well enough, one can extrapolate back to understand how similar changes have occurred over millions of years. Losos' primary focus is on the Caribbean-based Anolis H e and his students conducted a detailed Anolis study in the Greater Antilles; on each island they looked at several species and found each adapted to a particular habitat. One species specialized in living on narrow twigs, for instance; a second confined itself to the lower reaches of tree trunks; a third to ground-level grasses. This in itself was not new; biologists have been observing habitat-specific adaptations since Darwin. What was striking was what Losos observed across the four islands: Not only were the lizards different, but they were different in the same ways. Twig-dwellers tended to be thin and short-legged, for instance (not on one island, but on all). Likewise lower-trunk lizards had long legs and stocky bodies (no matter what island they were on). Yet the similar-looking lizards were clearly very different species; DNA analysis conducted in collaboration with Professor Allan Larson's lab confirmed the fact. (Larson also is a professor in the biology department.)
Entrez PubMed divergence in the adaptive radiation of West Indian anolis lizards. an important role in speciation during the adaptive radiation of anolis lizards. http://www.facultyof1000.com/pubmed/15539351
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Who Knew He Was The Alpha Male? of South Dakota has found that you can predict the social status of male lizards before they fight. What is more, green anolis lizards show their f. http://www.innovations-report.de/html/berichte/biowissenschaften_chemie/bericht-
Extractions: How do you know if a stranger will be nice or nasty? Professor Cliff Summers group at the University of South Dakota has found that you can predict the social status of male lizards before they fight. What is more, green Anolis lizards show their fighting fitness through a colour signal on their face. Wayne Korzan has discovered that how fast you recover from stress, to participate in feeding and courtship, can also foreshadow dominant social rank. Fast lizards are dominant lizards. As in humans, when anoles are stressed their adrenaline levels shoot up. As well as causing the fight or flight response, adrenaline results in black eyespots developing behind the lizards eyes. In a fight, the male who develops these eyespots fastest is dominant and usually wins. When the researchers painted artificial black signals onto a male lizard, they found that other lizards became subordinate to the animal with fake eyespots. Wayne will be presenting this work at the annual SEB meeting in Edinburgh from 29th March to 2nd April 2004 [session A3.31]. The researchers are studying the effects of neurotransmitters such as dopamine and serotonin to understand how these influence social behaviour. Animals with high levels of dopamine in the regions of the brain that are involved in motivation and locomotion tend to win their fights say Korzan and Summers; Animals that initiate the stress response faster and recover from stress faster tend to win. Conversely, animals with high levels of dopamine in the region of the brain associated with fear are usually subordinate and lose fights.
Innovations-report - Forum Für Wissenschaft, Industrie Und Wirtschaft anolis lizards, typically 5565 millimeters in length, are characterized by a colorful throat fan used in signaling other lizards, and a distinctive black, http://www.innovations-report.de/print/print01.php3?id=23923&ctyp=1
Artikel Zur Adaptiven Radiation (Archiv) Lister, BC 1976a. The nature of niche expansion in West Indian anolis lizards I. Ecological consequences of reduced competition. Evolution 30 659676. http://mansfeld.ipk-gatersleben.de/Radiationen/linklith07.htm
Extractions: Intro Links and Literature Program description Scientific Advisory Board Projekte Research Projects ... Interna Amadon, D. 1950. The Hawaiian honexcreepers (Aves, Drepaniidae). Bull. Am. Mus. Nat. Hist. 95: 151-262. Benkman, C. W., and A. K. Lindholm. 1991. The advantages and evolution of a morphological novelty. Nature 349: 519-520. Censky, E.J., K. Hodge, and J. Dudley. 1998. Over-water dispersal of lizards due to hurricanes. Nature 395: 556-557. Farrell, B.D. 1998. "Inordinate fondness" explained: why are there so many beetles? Science 281: 555-559. Fisher, R. A. 1930. The genetical theory of natural selection. Clarendon Press, Oxford. Freed, L. A., S. Conant, and R. C. Fleischer. 1987. Evolutionary ecology and radiation of Hawaiian passerine birds. Trends Ecol. Evol. 2: 196-203. Galis, F., and J. A. J. Metz. 1998. Why are there so many cichlid species? Trends Ecol. Evol. 13: 1-2. Givnish, T. J. 1998. Adaptive radiation of plants on oceanic islands: classical patterns, molecular data, new insights. Pp. 281-304 in P. Grant (ed.), Evolution on Islands. Oxford University Press. Givnish, T. J. 1997. Adaptive radiation and molecular systematics: aims and conceptual issues. Pp. 1-54 in T. J. Givnish and K. J. Sytsma (eds.), Molecular Evolution and Adaptive Radiation. Cambridge University Press, New York.
JOAN E. ROUGHGARDEN 1995, Roughgarden, J., anolis lizards of the Caribbean Ecology, Evolution, 1988, Roughgarden, J., and S. Pacala, Taxon cycle among Anolis lizard http://www.stanford.edu/group/roughlab/
Extractions: ASA News ASEE Prism Academe African American Review ... View all titles in this topic Hot New Articles by Topic Automotive Sports Top Articles Ever by Topic Automotive Sports Evolutionary approaches for studying functional morphology: Examples from studies of performance capacity Integrative and Comparative Biology Apr 2002 by Irschick, Duncan J This first pass at establishing relationships between performance, morphology and fitness was intended for within-species studies, but other researchers have extrapolated this approach for among-species comparisons (Emerson and Arnold, 1989; Garland and Losos, 1994). Further, two key factors, behavior and habitat use, were not explicitly considered in Arnold's (1983) paradigm, yet are important for both within- and among-species comparisons. Differences in morphology lead to differences in performance capacity, which, in turn result in differences in habitat use. Behavior, in turn, mediates the relationships between both morphology and performance, and between performance and habitat use (Garland et al., 1990). Thus, among-species studies should focus on four key characteristics: morphology, performance, behavior and habitat use for fully understanding how species adapt to their habitats.
Extractions: A: The St. Eustatius Marine Park consists of four areas that are protected by local law. The southern part of the Marine Park (from Crooks Castle all the way to White Wall) is a restricted fishing zone. The three other areas: the historical wreck sites in the bay, STENAPA Reef (a modern wreck site) and the northern Marine Park are open for both fishing and diving. The Marine Park started operations on the first of January 1998. We hope that measures we take now to conserve this exquisite environment will mean that the coral reefs will be here not only for us to enjoy but for future generations also. For more information on the St.Eustatius Marine Park, visit their website at: www.statiapark.org Q: : How can you visit the Park? A: The law on St. Eustatius states that diving for nonresidents is only allowed under local guidance. This is to ensure that no historical artifacts or marine life are removed from our waters. It implies that you have to contact a local dive operator if you wish to dive. If you are going to dive in the Marine Park however, there is an admission fee to be paid. This fee can be paid at the Marine Park office, which is located at Lower Town close to the harbor. Or, you can pay it through Golden Rock Dive Center. The Marine Park fees are: US$ 6.00 for a day pass.
Science -- Sign In New home leads to shorter legs in anolis lizards. and to the galaxy of anolis lizards themselves (150 species in the Caribbean alone). http://www.sciencemag.org/cgi/content/full/276/5313/682b
Extractions: You do not have access to this item: Full Text : Morell, Evolutionary Biology: Catching Lizards in the Act of Adapting, Science You are on the site via Free Public Access. What content can I view with Free Public Access If you have a personal user name and password, please login below. SCIENCE Online Sign In Options For Viewing This Content User Name Password this computer. Help with Sign In If you don't use cookies, sign in here Join AAAS and subscribe to Science for free full access. Sign Up More Info Register for Free Partial Access including abstracts, summaries and special registered free full text content. Register More Info Pay per Article 24 hours for US $10.00 from your current computer Regain Access to a recent Pay per Article purchase Need More Help? Can't get past this page? Forgotten your user name or password? AAAS Members activate your FREE Subscription
Science -- Sign In anolis lizards are a dominant element of the Caribbean fauna. On each of the islands of the Greater Antilles (Cuba, Hispaniola, Jamaica, and Puerto Rico), http://www.sciencemag.org/cgi/content/full/279/5359/2115
Extractions: You do not have access to this item: Full Text : Losos et al., Contingency and Determinism in Replicated Adaptive Radiations of Island Liza..., Science You are on the site via Free Public Access. What content can I view with Free Public Access If you have a personal user name and password, please login below. SCIENCE Online Sign In Options For Viewing This Content User Name Password this computer. Help with Sign In If you don't use cookies, sign in here Join AAAS and subscribe to Science for free full access. Sign Up More Info Register for Free Partial Access including abstracts, summaries and special registered free full text content. Register More Info Regain Access to a recent Pay per Article purchase Need More Help? Can't get past this page? Forgotten your user name or password? AAAS Members activate your FREE Subscription
New Added EBooks added on 200410-20 Section Anoles / Lizards. The Evolution of Jumping Performance in Caribbean anolis lizards Solutions to Biomechanical Trade-Offs http://www.leiopython.de/herpers-digest.com/modules/ebooks/new.php
Extractions: EPA Sued Over Toxic Waste Air Rules WASHINGTON, DC, December 8, 2003 (ENS) - Environmentalists filed suit Friday in federal court challenging regulations published by the U.S. Environmental Protection Agency (EPA) to regulate hazardous chemicals at toxic waste sites. The plaintiffs in the suit believe the EPA regulations will allow these hazardous chemicals to be pumped into the air without any control measures. "On behalf of its friends in the polluter lobby, the Bush administration has engaged in a scam that the Enron Board would admire," said Jim Pew, attorney for Earthjustice who is representing the environmental groups. "This rule will allow polluters to avoid much of the cost of cleaning up their toxic waste by just shifting their poisons from the water and soil to the air." The cleanup of toxic waste sites typically uses heat or aeration methods to remove chemicals from contaminated soil and water. The process releases a wide array of toxic compounds into the air - previously the EPA had listed these cleanup operations as a major source of hazardous air pollution that must be regulated under the Clean Air Act's air toxics provisions.
Gregory Christian Mayer Biology of anolis lizards Symposium. pp. 101103 in JB Losos and GC Mayer, eds. anolis lizards, American Society of Icthyologists and Herpetologists http://www.lasuerte.org/facultygreg.htm
Absdigest Digest, Vol 7 #7 Behavioral Ecology of anolis lizards 3. Postdoc Positions Message 1 From Caitlin R. Gabor gabor at swt.edu Subject MS Instructional http://www.animalbehavior.org/pipermail/absnet/Week-of-Mon-20010402/000253.html
Extractions: Tue Apr 3 12:28:14 EST 2001 Editors: * James C. Ha Internet: jcha at u.washington.edu ** Shan D. Duncan Internet: sdduncan at indiana.edu +========================================================================+ Today's Topics: 1. MS Instructional Assistantship and behavioral ecology 2. Behavioral Ecology of Anolis Lizards 3. Postdoc Positions Message: 1 From: "Caitlin R. Gabor" < gabor at swt.edu http://www.bio.swt.edu/gabor/gabor.htm for more details. The Department of Biology offers a strong environment for evolutionary background for training in behavioral ecology. Students will benefit from interactions with other faculty interested in evolutionary questions: Jim Ott (Insect-plant interactions and ecological genetics), Mike Forstner (Vertebrate systematics and population genetics), Kari Lavalli (Animal behavior and functional morphology of lobsters), and soon Chris Nice (Speciation in butterflies) Southwest Texas State University is committed to excellence in graduate training. MS Instructional Assistant stipends are $9,000 / 8 months and includes health insurance (however, in-state tuition fees apply to all). GRE (verbal and quantitative) scores of 1000 for MS, and a GPA of 2.75 are minimum requirements. Please also see the Department of Biology (
Losos Lab People - Manuel Leal Ultraviolet vision in lizards Antipredator responses of anolis cristatellus (Sauria Polychrotidae). Antipredator responses of the Puerto Rican giant anole, http://www.biology.wustl.edu/~lososlab/people/leal/leal.html
Extractions: Thesis Title Survival of the gutsiest: a study of function and quality of signals given to an approaching predator by Anolis lizards Current Projects Honest communication during prey-predator interactions Undergrad. Institution University of Puerto Rico, Rio Piedras Hobbies Fishing, Photography Research Interests Previous Research Projects Snake feeding behavior: Feeding envenomation by Arrhytonexigumm (Serpentes: Colubridae).
Research Structure, function, and evolution of anolis lizard communication behavior freeranging male anolis carolinensis lizards across breeding and http://www.biol.vt.edu/faculty/jenssen/research.html
REPTILE: LIZARDS - Element 1 Of 33 anolis lizard, anolis chrysolepis planicaps, lizards01.jpg 320 x 213 compressed image (. anolis LIZARD (anolis chrysolepis planiceps), Guyana http://www.lastrefuge.co.uk/images/html/reptiles/lizards/image_html/lizards01.ht
Entrez PubMed Populations of the lizards anolis carolinensis and A. sagrei were experimentally introduced onto small islands in the Bahamas. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=1
TWO CASES OF FIREFLY TOXICOSIS IN LIZARDS Interesting in this connection is that lizards (anolis carolinensis, Sceloporus undulatus, Eumeces laticeps) that are sympatric with Photinus in http://www.nbb.cornell.edu/neurobio/eisner/pogona.html
Extractions: (3) Department of Biology, Trinity College, Hartford, CT 06106 * To whom correspondence should be addressed. Fireflies of the genus Photinus are poisonous. Their bodies contain lucibufagins (Eisner et al. 1978), steroidal pyrones related structurally to such well-known toxins as the bufodienolides of toads and the cardenolides of plants (Fieser and Fieser, 1949; Budavari et al., 1989) (Fig. 1). Not surprisingly, the lucibufagins protect Photinus against predation. Spiders (