Ecomorphology and locomotion of Sceloporus

GALLARDO, L.I.*; NISHIKAWA, K.C.: Ecomorphology and locomotion of Sceloporus Comparative analyses of iguanian lizard morphology have shown that certain body proportions are consistently associated with particular microhabitats. This result suggests that a single genus with ecologically diverse species will exhibit morphological variation reflecting their ecological niches. Morphological measurements were taken from species of Sceloporus of […]

Distribution of living barnacles in the tidal Hackensack River

MCCLARY, JR., M.: Distribution of living barnacles in the tidal Hackensack River The tidal Hackensack River of New Jersey contains sites where the barnacle, Balanus improvisus, lives, and sites where they once lived. To investigate the possibility of increasing the distribution of living barnacles, five of ten rocks from the site where the barnacles live […]

Developmental Asymmetry in Growing Japanese Quail (Coturnix japonica)

STARCK, M.J.*; HELM, B.; SALZER, U.: Developmental Asymmetry in Growing Japanese Quail (Coturnix japonica) Measures of fluctuating asymmetry (FA) may by used as a gauge of developmental stability of various traits in growing animals; i.e., a high level of FA indicates labile development while low levels of FA stand for stabile development. In this study, […]

Development of the hyaline layer of the asteroid Pisaster ochraceus

Crawford, B.J.*; Pang, T.; Campbell, S.S.: Development of the hyaline layer of the asteroid Pisaster ochraceus. Embryos and larvae of the starfish Pisaster ochraceus are surrounded by a complex ECM layer called the hyaline layer (HL). A similar but less well organized ECM layer lines some regions of the larval gut. In material preserved with […]

Development of the electric organ of the skate, Raja eglanteria

MEDINA, C.L.; KOESTER, D.M.*; LUER, C.: Development of the electric organ of the skate, Raja eglanteria The electric organ of Raja eglanteria consists of paired, longitudinal columns of electrocytes within the lateral musculature of the tail. Although it is known that electrocytes develop from embryonic hypaxial muscle fibers within the tail, little information exists on […]

Development of a DNA Probe for the Identification of Early-Stage Mercenaria mercenaria (Hard Clam) Larvae

GREGG, C.S.*; NELSON, P.G.; TUCKER, M.C.; GRASSLE, J.P.: Development of a DNA Probe for the Identification of Early-Stage Mercenaria mercenaria (Hard Clam) Larvae Early-stage bivalve larvae are extremely difficult to identify unequivocally using morphological methods because they lack diagnostic characteristics. As part of a study of larval transport of estuarine bivalves, an oligonucleotide probe was […]

Dermal melanin density explains variation in a phylogenetically labile color signal in Sceloporus lizards correlational and experimental evidence

QUINN, V.S.; HEWS, D.K.*: Dermal melanin density explains variation in a phylogenetically labile color signal in Sceloporus lizards: correlational and experimental evidence We examined the production of a signaling trait, blue abdominal patches, in three Sceloporus lizard species. Sexes and species can differ in the occurrence of the patches. We tested the hypothesis that blue […]

Daily Activity Patterns in Cnemidophorus inornatus and C septemvittatus A Programmed Behavior

WINNE, C.T.*; KECK, M.B.: Daily Activity Patterns in Cnemidophorus inornatus and C. septemvittatus: A Programmed Behavior? ABSTRACT- In field studies of activity and thermal biology of whiptail lizards (genus Cnemidophorus: Teiidae), a strong correlation has been noted between daily activity patterns and temperature: Cnemidophorus consistently emerge from underground retreats at particular soil temperatures, and they […]

Cytology and ultrastructure of the extraembryonic membranes of the quail, Coturnix coturnix

CHARLESWORTH, T.D.; LEHMAN, A.H.*; BLACKBURN, D.G.: Cytology and ultrastructure of the extraembryonic membranes of the quail, Coturnix coturnix. In avian eggs, the yolk sac and chorioallantoic membrane (CAM) provide nutrients and gas exchange for the developing embryo. Despite avian diversity, most of what is known about anatomy and physiology of these extraembryonic membranes in birds […]

Cues used during poststrike trailing in rattlesnakes

SMITH, T.L.*; KARDONG, K.V.: Cues used during poststrike trailing in rattlesnakes Research on snake predatory behavior has involved identifying the specific cues eliciting foraging and attack behaviors. Prey integument and feces have been shown to produce behaviors correlated with increased predatory behavior. In addition, recent studies have shown that blood, itself, provides similar cues in […]

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