| escape tactics and effects of perch height and habituation on flight initiation distance in two jamaican anoles (squamata: polychrotidae). | escape by anolis lizards is influenced by microhabitats and fight initiation distance increases with predation risk. differences in microhabitat use among ecomorphs affect escape behavior, but only two studies have reported ecomorphological differences in flight initiation distance among greater antillean species. i studied effects of predation risk and microhabitats on escape behavior by conducting field experiments using two species of anoles, anolis lineatopus and a. grahami, on the campus of ... | 2010 | 21246988 |
| some species of centrorhynchus lühe, 1911 (acanthocephala: centrorhynchidae) from the collection of the natural history museum, london. | seven species of centrorhynchus lühe, 1911 are present in the parasitic worms collection of the natural history museum, london: c. aluconis (müller, 1780) lühe, 1911 from strix aluco linnaeus in great britain; c. buteonis (schrank, 1788) kostylev, 1914 from accipiter virgatus (temminck) (new host record) in sri lanka (new geographical record); c. clitorideus (meyer, 1931) golvan, 1956 from athene brama (temminck) (new host record) in india; c. crotophagicola schmidt and neiland, 1966 (encysted j ... | 2005 | 16167121 |
| dawn and dusk "chorus" in visually communicating jamaican anole lizards. | a key hypothesis explaining the existence of dawn and dusk choruses in acoustically communicating animals centers on the need to advertise continued territorial occupancy after and before a period of nocturnal inactivity. if this hypothesis is correct, it follows that similar dawn and dusk choruses should occur in territorial animals exploiting other signal modalities. adult male anolis lizards defend territories by using elaborate head-bobbing displays and extensions of a throat fan or dewlap. ... | 2008 | 18729743 |
| molecular phylogenetic perspective on evolution of lizards of the anolis grahami series. | we report the results of phylogenetic analyses of 1447 bases of mitochondrial dna sequence for 21 populations representing seven species of the anolis grahami series (a. conspersus, a. garmani, a. grahami, a. lineatopus, a. opalinus, a. reconditus, and a. valencienni), six of which occur on jamaica. these data include 705 characters that are phylogenetically informative according to parsimony. a parsimony analysis of these data combined with previously published allozymic data yields a single mo ... | 2002 | 11932945 |
| differentiation of the epidermis during scale formation in embryos of lizard. | the formation of the first epidermal generations and in particular of the shedding complex in the developing scales of the lizards anolis lineatopus and podarcis muralis was studied by electron microscopy. the initially linear and bilayered epidermis turned into symmetric papillae, which became asymmetric scales. the outer periderm was more electrondense than the following layer, provisionally named 'inner periderm' but probably derived from the basal layer. coarse thick filaments progressively ... | 1998 | 9643418 |
| scale morphogenesis during embryonic development in the lizard anolis lineatopus. | the development of scales was analysed in embryos of the jamaican iguanid lizard anolis lineatopus after the injection of cell proliferation markers [3h]thymidine and 5-bromodeoxyuridine. embryos were fixed at successive postinjection periods, from 2 h up to 13 d and sections of developing skin were studied by autoradiography and immunocytochemistry. the epidermis during the initial stages of morphogenesis (flat epidermis and symmetric scale stages) expands chiefly by the tangential proliferatio ... | 1996 | 8763488 |
| comparative studies of bile salts. bile salts of the lamprey petromyzon marinus l. | 1. bile salts of petromyzon marinus l. ammocoetes appeared to consist solely or chiefly of a crystalline substance, whose chromatographic and i.r.-spectral characteristics suggested that it was a monosulphate ester of a bile alcohol having the 3alpha,7alpha,12alpha-trihydroxy pattern of substitution in a 5alpha-steroid nucleus. 2. this substance on cleavage with dioxan-trichloroacetic acid gave petromyzonol, n.m.r. and mass-spectral examination of which suggested the structure 5alpha-cholane-3al ... | 1969 | 5810077 |
| localization of proliferating cells in the inter-vertebral region of the developing and adult vertebrae of lizards in relation to growth and regeneration. | new cartilaginous tissues in lizards is formed during the regeneration of the tail or after vertebral damage. in order to understand the origin of new cartilaginous cells in the embryo and after injury of adult vertebrae we have studied the distribution of proliferating cartilaginous cells in the vertebral column of embryos and adults of the lizard anolis lineatopus using autoradiography for h3-thymidine and light and ultrastructural immunocytochemistry for 5brdu. proliferating sclerotomal cells ... | 2016 | 26788856 |
| immunolocalization of keratin-associated beta-proteins in developing epidermis of lizard suggests that adhesive setae contain glycine--cysteine-rich proteins. | the localization of specific keratin-associated beta-proteins (formerly referred to as beta-keratins) in the embryonic epidermis of lizards is not known. two specific keratin-associated beta-proteins of the epidermis, one representing the glycine-rich subfamily (hgg5) and the other the glycine-cysteine medium-rich subfamily (hggc10), have been immunolocalized at the ultrastructural level in the lizard anolis lineatopus. the periderm and granulated subperiderm are most immunonegative for these pr ... | 2013 | 23108977 |
| continuous spermatogenesis and the germ cell development strategy within the testis of the jamaican gray anole, anolis lineatopus. | testicular tissues from anolis lineatopus were examined histologically to determine testicular structure, germ cell morphologies, and the germ cell development strategy employed during spermatogenesis. anoles (n=36) were collected from southern jamaica from october 2004 to september 2005. testes were extracted and fixed in trump's fixative, dehydrated, embedded in spurr's plastic, sectioned, and stained with basic fuchsin/toluidine blue. the testes of jamaican anoles were composed of seminiferou ... | 2009 | 19505715 |
| on an ant - lizard interaction. | the myrmicine ant crematogaster brevispinosa attacks juveniles and possibly adults of the iguanid lizard, anolis lineatopus; bitten juveniles usually run away. a juvenile a. lineatopus caged together with 38 c. brevispinosa specimens died within hours due to attacks by these ants. on a study site in kingston, jamaica, fewer a. lineatopus were found to inhabit a patch densely occupied by c. brevispinosa than a structurally similar patch where this ant was not present. similarly, fewer a. lineatop ... | 1983 | 28310591 |