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Topic: Lacertid


In the News (Tue 14 Feb 12)

  
  Publicaciones de J.A. Díaz
I studied the activity, spacing patterns, courtship behavior and survival of males (classified into two groups according to the development of the head's sexual coloration) and females from a population of the lacertid lizard Psammodromus algirus.
Maximizing the average rate of energy intake (profitability) may not always be the optimal foraging strategy for ectotherms with relatively low energy requirements.
In this study we report a clear relationship between heating rates and environmental temperatures among eight species in a homogeneous clade of lacertid lizards.
www.ucm.es /info/zoo/Vertebrados/ecology.htm   (1486 words)

  
 Department of Biology:
Evolution of sprint speed in lacertid lizards: morphological, physiological, and behavioral covariation.
The mechanisms by which higher levels of organismal performance are achieved during evolution are therefore fundamentally important for understanding correlated evolution in general and coadaptation in particular.
Phylogenetic analyses using independent contrasts indicate that the evolution of high maximum sprinting abilities (measured on a photocell-timed racetrack) has occurred via the evolution of (1) longer hindlimbs relative to body size, and (2) a higher physiologically optimum temperature for sprinting.
www.biology.ucr.edu /people/faculty/Garland/46Abs.html   (459 words)

  
 APP 44 (4) 1999
This is in conflict with a possible derivation of all the extant lacertids from a common ancestor of no earlier than Oligocene age based on the recent albumin-immunological and karyologic analyses using molecular clock methodology.
Outgroup analysis of the lacertid pileus characters is applied to reconstruct the order and rate of appearance of character states during the pre-Oligocene section of phylogeny of the lacertid clade theoretically beginning by about the Late Jurassic.
Two synapomorphies are proposed for the whole lacertid clade, including Eocene Plesiolacerta: frontoparietal scales largely overlapping the parietal table with a corresponding central position of the interparietal, and presence of the occipital.
app.pan.pl /acta44-4.htm   (805 words)

  
 LACERTID LIZARDS (Lacertidae): Lacerta   (Site not responding. Last check: 2007-10-11)
The larger lacertids, again, may also benefit from being allowed out for exercise when adult sized (they are unlikely to get lost if the room is properly secured), but this is really not an option for the smaller lizards.
These lacertids are also extremely territorial, and pairs or individuals will mark out and defend a small area as their own where they will live and breed for years.
Sexual differentiation is not as marked as in other lacertids: both sexes are a brown-grey colour with darker longituduinal stripes, but the males are generally larger and have a bright orange, dark-spotted belly.
www.cyberlizard.plus.com /lacertids1.html   (4350 words)

  
 R: Variance-covariance matrix for lacertids from Bauwens and Díaz-uriarte (1997)   (Site not responding. Last check: 2007-10-11)
R: Variance-covariance matrix for lacertids from Bauwens and Díaz-uriarte (1997)
Phylogenetic variance-covariance matrix for 18 species of lacertids.
Bauwens, D., and Díaz-Uriarte, R. (1997) Covariation of life-history traits in lacertid lizards: a comparative study.
pbil.univ-lyon1.fr /library/PHYLOGR/html/Lacertid.varcov.html   (132 words)

  
 Natura Croatica
The present study is a synthesis of data collected from 1980 to 1997 on lacertid lizards in the southern Po river basin (Northern Italy), investigated using the data from the Herpetological Data base of the Natural History Museum of Ferrara.
The aim of the present study is to synthesise the available data on the occurrence of lacertid lizards on Mediterranean islands better to understand how far human influence is involved in the present distributional patterns of insular lacertid lizard fauna.
All seven lacertid species recorded from the Peloponnese can be found in a very small area in the Arkadian highlands on the Peloponnese peninsula.
www.hpm.hr /Vol8_3.htm   (2035 words)

  
 PARVA - parvin, alpha
Skull osteology of Parvilacerta parva, a small-sized lacertid lizard from Asia Minor.
The skull of the poorly known Asia Minor lacertid lizard Parvilacerta parva is described.
Distribution of taste buds on the lips and inside the mouth in a minnow, Pseudorasbora parva.
www.ihop-net.org /UniPub/iHOP/gi/100771.html   (1041 words)

  
 LACERTID LIZARDS: A Guide
Lacertids is a term that is more or less synonymous with the lizards of the family Lacertidae, particularly the Lacerta species themselves.
Most Europeans will probably unconsciously think of a lacertid if the word "lizard" is mentioned, and indeed Lacertids are very much an Old World family, centred in Europe (not a continent renowned for its reptiles) but also with species in Africa and Asia.
Unlike skinks, however, lacertids are fairly conservative in structure, with little or no limb reduction and a fairly similar body design throughout the different genera: pointed snout, long whiplike tail and sexual differentiation through colour and pores, and often jowls in older males.
www.cyberlizard.plus.com /lacertids.html   (1346 words)

  
 How to keep…
As a matter of fact, lacertid lizards are also found in Asia (think of the genus Takydromus) and in Africa where the group may have originated.
Lacertids are fond of cracks and spaces between rocks and bark as hiding places.
The natural history of a number of temperate South American lizards is more or less comparable to that of the European lacertid lizards.
www.podarcis.nl /info/halsbandhaguk.php3   (1764 words)

  
 Lacertidae   (Site not responding. Last check: 2007-10-11)
Lacertid scalation and body forms are similar to those of the teiids, although lacertids are usually smaller (Zug et al.
Darevskia is distinguished from Podarcis by alternating narrow and broad whorls of scales around tial and keeld scales on tibia and tail.
Holaspis is one of the few arboreal lacertids, and its single species (Holaspis guentheri) is a glider, although apparently a poor one using its broad tail and flattened body as an aerofoil (Zug et al.
www.embl-heidelberg.de /~uetz/families/Lacertidae.html   (754 words)

  
 UCI Comp Phys
Field energetics and foraging mode of Kalahari lacertid lizards.
Physiological correlates of natural activity and locomotor capacity in two species of lacertid lizards.
Locomotor capacity and foraging behaviour of Kalahari lacertid lizards.
compphys.bio.uci.edu /bennett/pubs.htm   (1878 words)

  
 [No title]
Namib desert lacertid, Aporosaura anchietae, with duckbilled snout.
An open sandy desert poses severe problems for its inhabitants: (1) windblown sands are loose and provide little traction; (2) surface temperatures at midday rise to lethal levels; and (3) open sandy areas offer little food or shade or cover for evading predators.
Foraging mode in lacertid lizards: variation and correlates.
uts.cc.utexas.edu /~varanus/lacertids3.html   (2138 words)

  
 Re: lacertid chatroom   (Site not responding. Last check: 2007-10-11)
In Reply to: Re: lacertid chatroom posted by shaye on September 29, 1999 at 00:29:37:
I recently came across a small lacertid (I have one specimen in my garden)that very closely resembles the Teiid Cnemidophorus.
Ground color is light tan, which is overlaid with a profuse network of fl spots dorsally.
www.nhm-wien.ac.at /NHM/Herpet/Lacertidae/messages/65.html   (224 words)

  
 E-Prints archive -
This idea was concretised about three years later in Mytilini, by the “First International Symposium on the lacertids of the Mediterranean Basin”.
The choice of Lipari Island as the meeting venue is not casual: the Aeolian Archipelago is inhabited by an endemic, and one of the most threatened, Mediterranean lacertid lizard.
The study of the Mediterranean lacertid lizards represents a key point for understanding the mechanisms regulating the evolution of the Mediterranean’s ecosystems and in particular those ones related to islands.
e-prints.unifi.it /archive/00000500   (266 words)

  
 Search Results for lacertid - Encyclopædia Britannica   (Site not responding. Last check: 2007-10-11)
Although living reptiles, which number some 6,000 species, are primarily tropical animals, many inhabit the temperate zones.
The northernmost ranges are those of the lacertid lizard (Lacerta...
The classification presented here is adapted from Underwood (1957), which is an updating of C.L. Camp (1923).
www.britannica.com /search?query=lacertid&submit=Find&source=MWTAB   (145 words)

  
 Ecology: Covariation of thermal biology and foraging mode in two Mediterranean lacertid lizards.@ HighBeam Research   (Site not responding. Last check: 2007-10-11)
Ecology: Covariation of thermal biology and foraging mode in two Mediterranean lacertid lizards.@ HighBeam Research
Covariation of thermal biology and foraging mode in two Mediterranean lacertid lizards.
Body temperatures, heat exchange rates, behavioral thermoregulation, and movement behavior (as an index of foraging mode) were studied in two widely distributed, medium-sized lacertid lizards (Acanthodactylus erythrurus and Psammodromus algirus).
www.highbeam.com /library/doc0.asp?DOCID=1G1:18475478&refid=ip_encyclopedia_hf   (210 words)

  
 Literaturverzeichnis_Mesalina
Arnold, E.N. The hemipenis of lacertid lizards (Reptilia:Lacertidae): structure, variation and systematic implications.- Journal of Natural History, 20: 1221-1257.
- In: Pérez-Mellado, V., Riera, N. and A. Perera (eds.): The Biology of Lacertid Lizards.
Arnold, E.N. Why copulatory organs provide so many useful taxonomic characters: the origin and maintenance of hemipenial differences in lacertid lizards.
www.lacerta.de /Seiten_Literaturverzeichnis/Mesalina/Literaturverzeichnis-Mesalina.html   (1305 words)

  
 Edited Books
V., N. Riera and A. Perera (Eds.) The Biology of the Lacertid Lizards.
Preliminary Data on the Feeding Ecology of Podacris raffonei (Reptilia, Lacertidae), a Threatened Endemic Lizard of the Aeolian Islands (Mediterranean Sea).
Mayol, J. Survival of an Artificially Hybridized Population of Podacris pityusensis at Du Gran: Evolutionary Implications.
herplit.com /contents/Edited.html   (5193 words)

  
 Variation in speed, gait characteristics and microhabitat use in lacertid lizards -- Vanhooydonck et al. 205 (7): 1037 ...
Variation in speed, gait characteristics and microhabitat use in lacertid lizards -- Vanhooydonck et al.
Hypothesised phylogenetic relationships among the 11 lacertid lizard species under study.
The phylogeny is incompletely resolved, and this tree should be considered a best approximation.
jeb.biologists.org /cgi/content/full/205/7/1037/FIG2   (87 words)

  
 Presses scientifiques du CNRC :
Abstract: One of the performance features that is generally considered crucial to increasing the potential prey spectrum of lizards is bite capacity.
In this study we tested whether bite forces may serve as a basis for diet selection in two syntopically occurring lacertid lizards.
We did so by measuring bite forces in vivo for a large sample of lizards of the species Podarcis muralis and Lacerta vivipara.
pubs.nrc-cnrc.gc.ca /cgi-bin/ps/rp2_abst_f?cjz_z01-031_ys_ns_nf_cjz   (384 words)

  
 Variation in speed, gait characteristics and microhabitat use in lacertid lizards -- Vanhooydonck et al. 205 (7): 1037 ...
Graphical representations of the multiple regression analyses we performed on the morphological, gait characteristics and performance data in the 11 lacertid lizard species.
Arnold, E. Structural niche, limb morphology and locomotion in lacertid lizards (Squamata, Lacertidae); a preliminary survey.
Harris, D. J., Arnold, E. and Thomas, R. Relationships of lacertid lizards (Reptilia: Lacertidae) estimated from mitochondrial DNA sequences and morphology.
jeb.biologists.org /cgi/content/full/205/7/1037   (5570 words)

  
 José A. Díaz.- Zoologia de Vertebrados UCM
DIAZ, J.A. Temporal patterns of basking behaviour in a Mediterranean lacertid lizard.
ABSTRACT.- I studied the activity, spacing patterns, courtship behavior and survival of males (classified into two groups according to the development of the head's sexual coloration) and females from a population of the lacertid lizard Psammodromus algirus.
ABSTRACT.- It is well known that lizard species from thermally diverse areas show differ in their use of thermoregulatory behaviors as a means of making short-term adjustments to differences in ambient conditions..
www.ucm.es /info/zoo/Vertebrados/jadiaz.htm   (2234 words)

  
 Ecology: Covariation of thermal biology and foraging mode in two Mediterranean lacertid lizards   (Site not responding. Last check: 2007-10-11)
Locomotor capacities shown by these two species are also consistent with previous results on the physiological correlates of foraging modes.
(1984) found that sit-and-wait lacertids from the Kalahari usually had relatively high sprint speeds.
Accordingly, maximal sprint speed is higher in A. erythrurus than in P. algirus (Bauwens et al.
www.findarticles.com /p/articles/mi_m2120/is_n4_v77/ai_18475478/pg_4   (1390 words)

  
 R: Independet contrasts for Bauwens and Díaz-Uriarte (1997) lacertid data set   (Site not responding. Last check: 2007-10-11)
R: Independet contrasts for Bauwens and Díaz-Uriarte (1997) lacertid data set
Independet contrasts for Bauwens and Díaz-Uriarte (1997) lacertid data set
Independent contrast for Bauwens and Díaz-Uriarte (1997) data set; they are based on the data in the file Lacertid.Original using the phylogeny in Buwens and Díaz-Uriarte (1997), Tree A — see
www.maths.lth.se /help/R/.R/library/PHYLOGR/html/Lacertid.IC.html   (128 words)

  
 Biological Sciences / Research / Publication
Matrix correspondence tests on the DNA phylogeny of the tenerife lacertid elucidate both historical causes and morphological adaptation
Previous studies using partial regression Mantel tests of matrix correspondence on within-island geographic variation in the color pattern of the Tenerife (Canary Islands) lacertid lizard (Gallotia galloti) support natural selection for different north-south climatically determined biotopes but do not support any historical cause.
However, tests on the DNA phylogeny based primarily on population data from 57 localities on Tenerife support the hypothesis that there were populations on two putative precursor islands that have come into secondary contact and introgressed after these islands were joined to form Tenerife by the eruption of the Canadas edifice.
sbsweb.bangor.ac.uk /research/publication/A1996VN32100007   (202 words)

  
 Unknown southern African lacertid
Look like they'll do well, but I don't know what they are...
I'm fairly certain they're lacertids in either Meroles, Nucras, or Pedioplanis.
In addition to what you can gather from the picture, I can tell you that they have keeled subdigital lamellae, which an out-of-date guide to the reptiles of Kruger National Park (in South Africa, IIRC) tells me means that this is Nucras...
forum.kingsnake.com /whatl/messages/2816.html   (147 words)

  
 Ecomorphology
Terrestrial species also tend to have longer hind legs than arboreal species in Sceloporus (Lundelius 1957) and in Anolis (Collette 1961).
Ananjeva (1977) found differences in limb proportions among five sympatric lacertids (genus Eremius), which proved to be correlated with their adaptations for climbing, burrowing, and other movements.
Digging species typically possess larger front feet and more powerful forelegs than species that do not do much digging with their front limbs.
uts.cc.utexas.edu /~varanus/ecomorphology.html   (2076 words)

  
 Forum Message: 'A: Lacertid -Eating Problems'   (Site not responding. Last check: 2007-10-11)
We'll bring you back to this forum when you're done.
In reply to "Q: Lacertid -Eating Problems" from Agent Lonewolf
This answer has not yet been graded by a Moderator.
www.practical-pet-care.com /lizard_question.php?ID=2.2003011415480752   (322 words)

  
 Ecology and Society: Galápagos Birds and Diseases: Invasive Pathogens as Threats for Island Species
Similar but less well-documented examples exist from Christmas Island in the Indian Ocean where the extinction of two endemic species of rodent appear to be linked to the introduction of a trypanosome pathogen (Day 1981, Pickering and Norris 1996, see also Fancy and Snetsinger 2001).
Epidemics that have devastated island taxa have also been reported for lacertid lizards in the Tyrrhenian Sea and for birds along the eastern seaboard of the United States (Day 1981).
Endemic island species held in captivity appear similarly sensitive to infection by exotic pathogens.
www.ecologyandsociety.org /vol9/iss1/art5/main.html   (3844 words)

  
 Pool Vermiculite   (Site not responding. Last check: 2007-10-11)
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www.justtobacco.com /pool_vermiculite.html   (689 words)

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