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Systematics Of Snakes Referred To Dipsas Variegata In Panama And Western South America With Revalidation Of Two Species And Notes On Defensive Behaviors In The Dipsadini Colubridae
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Book Synopsis Systematics of Snakes Referred to Dipsas Variegata in Panama and Western South America, with Revalidation of Two Species and Notes on Defensive Behaviors in the Dipsadini (Colubridae). American Museum Novitates by :
Download or read book Systematics of Snakes Referred to Dipsas Variegata in Panama and Western South America, with Revalidation of Two Species and Notes on Defensive Behaviors in the Dipsadini (Colubridae). American Museum Novitates written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Systematics of Snakes Referred to Dipsas Variegata in Panama and Western South America, with Revalidation of Two Species and Notes on Defensive Behaviors in the Dipsadini (Colubridae) by : John E. Cadle
Download or read book Systematics of Snakes Referred to Dipsas Variegata in Panama and Western South America, with Revalidation of Two Species and Notes on Defensive Behaviors in the Dipsadini (Colubridae) written by John E. Cadle and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: [English abstract]. The name Dipsas variegata (Duméril, Bibron, and Duméril) has been applied to snakes disjunctively distributed in northeastern South America and in Panama and western South America. The specific name variegata is here restricted to populations occurring from Venezuela to Trinidad and French Guiana, and seemingly to the mouth of the Amazon in Brazil. Records from Colombia are unsubstantiated. The name Dipsas nicholsi (Dunn) is revalidated for a Central American endemic with an exceptionally small range in central Panama. Specimens from western Ecuador previously assigned to "Dipsas variegata nicholsi" represent a different species--Dipsas andiana (Boulenger), which is resurrected from the synonymy of Dipsas oreas (Cope). Other records of Dipsas variegata from western Ecuador and southeastern Peru are based on misidentifications of species well known from those areas. Dipsas nicholsi and D. andiana differ in some scutellation, hemipenial, and color pattern characters. The two species share an unusual head pattern, but data are insufficient to conclude that they are sister species, although their disjunct distribution pattern (Panama and Chocoan South America) is one shared by many other organisms thought to be phylogenetically related. Hemipenes of Dipsas nicholsi and D. andiana are slightly bilobed and fully capitate; the sulcus spermaticus divides within the capitulum and has centrolineal branches. The capitulum is ornamented with papillate calyces. A battery of enlarged spines encircles the organ below the capitulum (with more spines in nicholsi than in andiana). There is an elongated basal nude pocket positioned laterally on the organ. Overall hemipenial morphology is similar to other species of the tribe Dipsadini (Dipsas, Sibon, Sibynomorphus, Tropidodipsas) for which organs have been described. The Dipsadini are docile snakes that, in the authors' experience, never defend themselves by biting or even striking with mouth closed. Defensive positional deportment is nonetheless widespread and varied, most commonly including acquisition of a triangular head shape in at least three genera of Dipsadini (and other snakes as well), which is brought about by dorsolateral spreading of the quadratomandibular articulations. Either asymmetrical or symmetrical coiling and head-hiding also occur in diverse species; there is evident individual variability in some species, whereas others possibly lack specialized behavior. A specimen of Dipsas nicholsi did not show the common head triangulation, but repeatedly exhibited stereotypic stages of defensive positioning that resulted in it taking the shape of a raised spiral coil.
Book Synopsis Systematics of snakes referred to Dipsas variegata in Panama and western South America, with revalidation of two species and notes on defensive behaviors in the Dipsadini (Colubridae) by : John E. Cadle
Download or read book Systematics of snakes referred to Dipsas variegata in Panama and western South America, with revalidation of two species and notes on defensive behaviors in the Dipsadini (Colubridae) written by John E. Cadle and published by . This book was released on 2003 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Systematics of Snakes Referred to Dipsas Variegate in Panama and Western South America, with Revalidation of Two Species and Notes on Defensive Behaviors in the Dipsadini (Colubridae) by : John E. Cadle
Download or read book Systematics of Snakes Referred to Dipsas Variegate in Panama and Western South America, with Revalidation of Two Species and Notes on Defensive Behaviors in the Dipsadini (Colubridae) written by John E. Cadle and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Systematics of Snakes Referred to Dipsas Variegata in Panama and Western America, with Revalidation of Two Species and Notes on Defensive Behaviours in the Dipsadini (Colubridae) by :
Download or read book Systematics of Snakes Referred to Dipsas Variegata in Panama and Western America, with Revalidation of Two Species and Notes on Defensive Behaviours in the Dipsadini (Colubridae) written by and published by . This book was released on 2003 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Systematics of Snakes, Referred to Dispas Variegata in Panama and Western South America, with Revalidation of Two Species and Notes on Defensive Behaviors in the Dipsadini (Colubridae) by :
Download or read book Systematics of Snakes, Referred to Dispas Variegata in Panama and Western South America, with Revalidation of Two Species and Notes on Defensive Behaviors in the Dipsadini (Colubridae) written by and published by . This book was released on 2003 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Snakes of the World by : Van Wallach
Download or read book Snakes of the World written by Van Wallach and published by CRC Press. This book was released on 2014-04-22 with total page 1237 pages. Available in PDF, EPUB and Kindle. Book excerpt: Snakes of the World: A Catalogue of Living and Extinct Species-the first catalogue of its kind-covers all living and fossil snakes described between 1758 and 2012, comprising 3,509 living and 274 extinct species allocated to 539 living and 112 extinct genera. Also included are 54 genera and 302 species that are dubious or invalid, resulting in reco
Book Synopsis Bulletin of the Museum of Comparative Zoology by :
Download or read book Bulletin of the Museum of Comparative Zoology written by and published by . This book was released on 2010 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cusco Amazónico by : William Edward Duellman
Download or read book Cusco Amazónico written by William Edward Duellman and published by Comstock Publishing Associates. This book was released on 2005 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Assays of assemblages of amphibians and reptiles provide important information on community structure in the tropics. These ectothermic organisms are highly responsive to slight differences in the environment and to seasonal differences, such as patterns of rainfall. Most species seem to have rather restricted home ranges; therefore, data gathered in a restricted area provide much better insight into the requirements of, and potential interactions among, the species in the assemblage."--from the IntroductionThe rainforests in the southwestern part of the Amazon Basin in southeastern Peru are home to scores of amphibians and reptiles. Cusco Amazónico is a richly illustrated and comprehensive account of the lives of 151 of these species. William E. Duellman's masterpiece of community ecology includes descriptions of the physical environment and vegetation found in this unique habitat along with syntheses of abundance, mass, feeding, reproductive guilds, and daily and seasonal patterns of activity. Identification keys in English and Spanish precede detailed and illustrated species accounts. Tadpoles of many frogs are described and illustrated.Cusco Amazónico will become a standard reference for herpetologists, tropical biologists, biogeographers, ecologists, and conservationists and stands on its own as a portrait of an animal community in a unique bioregion. The illustrations include 236 color photographs, 121 charts and graphs, 16 maps, 42 line drawings, 2 halftones, and 56 sets of audiospectrograms and waveforms. There are 71 tables.
Book Synopsis The Amphibians and Reptiles of Mindo by : Alejandro Arteaga
Download or read book The Amphibians and Reptiles of Mindo written by Alejandro Arteaga and published by . This book was released on 2013 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Systematics of Snakes of the Dipsas Oreas Complex (Colubridae: Dipsadinae) in Western Ecuador and Peru, with Revalidation of D. Elegans (Boulenger) and D. Ellipsifera (Boulenger) by : John E. Cadle
Download or read book Systematics of Snakes of the Dipsas Oreas Complex (Colubridae: Dipsadinae) in Western Ecuador and Peru, with Revalidation of D. Elegans (Boulenger) and D. Ellipsifera (Boulenger) written by John E. Cadle and published by . This book was released on 2005 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Birds of Ecuador by : Robert S. Ridgely
Download or read book The Birds of Ecuador written by Robert S. Ridgely and published by Christopher Helm Publishers, Incorporated. This book was released on 2001 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt: These widely anticipated volumes comprehensively treat the nearly 1600 species of birds that can be found in mainland Ecuador. Volume 2: Field Guide contains 96 full-colour plates and facing pages of descriptive text, a colour map of Ecuador, 2 line drawings of bird anatomy, 115 silhouette outlines and nearly 1600 distribution maps. All species are illustrated in full colour, including migrants and vagrants and visually distinctive subspecies. The text focuses on the field indentification aspects of each species, including their behaviour, vocalisations and nest appearance.
Book Synopsis On the Batrachia and Reptilia of Costa Rica by : Edward Drinker Cope
Download or read book On the Batrachia and Reptilia of Costa Rica written by Edward Drinker Cope and published by . This book was released on 1875 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the Batrachia and Reptilia of Costa Rica : With Notes on the Herpetology and Ichthyology of Nicaragua and Peru by Edward Drinker Cope, first published in 1875, is a rare manuscript, the original residing in one of the great libraries of the world. This book is a reproduction of that original, which has been scanned and cleaned by state-of-the-art publishing tools for better readability and enhanced appreciation. Restoration Editors' mission is to bring long out of print manuscripts back to life. Some smudges, annotations or unclear text may still exist, due to permanent damage to the original work. We believe the literary significance of the text justifies offering this reproduction, allowing a new generation to appreciate it.
Book Synopsis The Reptiles of the Upper Amazon Basin, Iquitos Region, Peru by : James Ray Dixon
Download or read book The Reptiles of the Upper Amazon Basin, Iquitos Region, Peru written by James Ray Dixon and published by . This book was released on 1986 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Snakes of Panama written by Julie Ray and published by . This book was released on 2017-11-05 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Republic of Panama, located between Costa Rica and Colombia, is the land bridge between North and South America. It has a rich diversity of snakes, with 148 species known to occur in the country as of November 2017. Species are continuing to be added regularly as new parts of tropical forest are explored.This field guide includes for every species:*Colored photographs*Dot Maps*Descriptions with scale counts*Natural History*Similar SpeciesIt also includes information on:*Panama's provinces and habitats*General snake biology*Snakebite prevention*Hospitals of each provinceThis field guide is the first this millennium to so comprehensively cover these interesting and ecologically important animals for Panama.
Book Synopsis Rare Snakes - Five New Species from Eastern Panama by : Charles W. Myers
Download or read book Rare Snakes - Five New Species from Eastern Panama written by Charles W. Myers and published by . This book was released on 2003 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On the Uniquely Fragmented Distribution of a Rare Panamanian Snake, Dipsas Nicholsi (Colubridae: Dipsadinae) by : Charles W. Myers
Download or read book On the Uniquely Fragmented Distribution of a Rare Panamanian Snake, Dipsas Nicholsi (Colubridae: Dipsadinae) written by Charles W. Myers and published by . This book was released on 2007 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
