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Catalogue of the Amphibians of Venezuela: Illustrated and Annotated Species List, Distribution, and Conservation 1,2César L
Mannophryne vulcano, Male carrying tadpoles. El Ávila (Parque Nacional Guairarepano), Distrito Federal. Photo: Jose Vieira. We want to dedicate this work to some outstanding individuals who encouraged us, directly or indirectly, and are no longer with us. They were colleagues and close friends, and their friendship will remain for years to come. César Molina Rodríguez (1960–2015) Erik Arrieta Márquez (1978–2008) Jose Ayarzagüena Sanz (1952–2011) Saúl Gutiérrez Eljuri (1960–2012) Juan Rivero (1923–2014) Luis Scott (1948–2011) Marco Natera Mumaw (1972–2010) Official journal website: Amphibian & Reptile Conservation amphibian-reptile-conservation.org 13(1) [Special Section]: 1–198 (e180). Catalogue of the amphibians of Venezuela: Illustrated and annotated species list, distribution, and conservation 1,2César L. Barrio-Amorós, 3,4Fernando J. M. Rojas-Runjaic, and 5J. Celsa Señaris 1Fundación AndígenA, Apartado Postal 210, Mérida, VENEZUELA 2Current address: Doc Frog Expeditions, Uvita de Osa, COSTA RICA 3Fundación La Salle de Ciencias Naturales, Museo de Historia Natural La Salle, Apartado Postal 1930, Caracas 1010-A, VENEZUELA 4Current address: Pontifícia Universidade Católica do Río Grande do Sul (PUCRS), Laboratório de Sistemática de Vertebrados, Av. Ipiranga 6681, Porto Alegre, RS 90619–900, BRAZIL 5Instituto Venezolano de Investigaciones Científicas, Altos de Pipe, apartado 20632, Caracas 1020, VENEZUELA Abstract.—Presented is an annotated checklist of the amphibians of Venezuela, current as of December 2018. The last comprehensive list (Barrio-Amorós 2009c) included a total of 333 species, while the current catalogue lists 387 species (370 anurans, 10 caecilians, and seven salamanders), including 28 species not yet described or properly identified. Fifty species and four genera are added to the previous list, 25 species are deleted, and 47 experienced nomenclatural changes. -
Amphibiaweb's Illustrated Amphibians of the Earth
AmphibiaWeb's Illustrated Amphibians of the Earth Created and Illustrated by the 2020-2021 AmphibiaWeb URAP Team: Alice Drozd, Arjun Mehta, Ash Reining, Kira Wiesinger, and Ann T. Chang This introduction to amphibians was written by University of California, Berkeley AmphibiaWeb Undergraduate Research Apprentices for people who love amphibians. Thank you to the many AmphibiaWeb apprentices over the last 21 years for their efforts. Edited by members of the AmphibiaWeb Steering Committee CC BY-NC-SA 2 Dedicated in loving memory of David B. Wake Founding Director of AmphibiaWeb (8 June 1936 - 29 April 2021) Dave Wake was a dedicated amphibian biologist who mentored and educated countless people. With the launch of AmphibiaWeb in 2000, Dave sought to bring the conservation science and basic fact-based biology of all amphibians to a single place where everyone could access the information freely. Until his last day, David remained a tirelessly dedicated scientist and ally of the amphibians of the world. 3 Table of Contents What are Amphibians? Their Characteristics ...................................................................................... 7 Orders of Amphibians.................................................................................... 7 Where are Amphibians? Where are Amphibians? ............................................................................... 9 What are Bioregions? ..................................................................................10 Conservation of Amphibians Why Save Amphibians? ............................................................................. -
Species Limits, and Evolutionary History of Glassfrogs
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Care and Breeding of Specialty Taxa
ABM Specialty Taxa Husbandry Centrolenids (Glass Frogs) version 1 April 2008 Robert Hill and Ron Gagliardo Atlanta Botanical Garden The purpose of the Specialty Taxa Monograph is to provide more information on husbandry and breeding of different taxa that may be encountered in amphibian collections. It is intended to be an addendum to the Basic Husbandry Monograph, where basic principles are addressed. Some husbandry specifics are based on experience at the Atlanta Botanical Garden (ABG) and others may experience different results. 1) Basic morphology and natural history Centrolenids (Glass Frogs) are endemic to Central and South America. There are over 140 species described to date contained in 4 genera that range from southern Mexico to Bolivia (Cisneros-Heredia, and McDiarmid, 2007; Savage 2002). As the common name implies, they have particularly thin, transparent skin allowing observation of some internal organs and fragile skeletal structure. They are generally very small in size (2 to 8 cm) and strictly nocturnal. They have large eyes that make up a good portion of the head. One interesting characteristic of the eyes is the 45-degree angle orientation that allows them binocular vision. (Kubicki 2007). Centrolenids typically dwell in vegetation along streams, so they are very much dependent on water. Eggs masses consisting of 10 to 60 individual eggs are deposited on leaves over hanging streams and tadpoles drop in upon hatching. In some species, the male guards these egg masses. Aggression and combat among males has been documented in nature, but little is known about this under captive conditions. Eel-like centrolenid larvae are quite benthic in nature, spending most of the time in submerged leaf litter in small calm pools at the edges of streams. -
3Systematics and Diversity of Extant Amphibians
Systematics and Diversity of 3 Extant Amphibians he three extant lissamphibian lineages (hereafter amples of classic systematics papers. We present widely referred to by the more common term amphibians) used common names of groups in addition to scientifi c Tare descendants of a common ancestor that lived names, noting also that herpetologists colloquially refer during (or soon after) the Late Carboniferous. Since the to most clades by their scientifi c name (e.g., ranids, am- three lineages diverged, each has evolved unique fea- bystomatids, typhlonectids). tures that defi ne the group; however, salamanders, frogs, A total of 7,303 species of amphibians are recognized and caecelians also share many traits that are evidence and new species—primarily tropical frogs and salaman- of their common ancestry. Two of the most defi nitive of ders—continue to be described. Frogs are far more di- these traits are: verse than salamanders and caecelians combined; more than 6,400 (~88%) of extant amphibian species are frogs, 1. Nearly all amphibians have complex life histories. almost 25% of which have been described in the past Most species undergo metamorphosis from an 15 years. Salamanders comprise more than 660 species, aquatic larva to a terrestrial adult, and even spe- and there are 200 species of caecilians. Amphibian diver- cies that lay terrestrial eggs require moist nest sity is not evenly distributed within families. For example, sites to prevent desiccation. Thus, regardless of more than 65% of extant salamanders are in the family the habitat of the adult, all species of amphibians Plethodontidae, and more than 50% of all frogs are in just are fundamentally tied to water. -
Herpetology at the Isthmus Species Checklist
Herpetology at the Isthmus Species Checklist AMPHIBIANS BUFONIDAE true toads Atelopus zeteki Panamanian Golden Frog Incilius coniferus Green Climbing Toad Incilius signifer Panama Dry Forest Toad Rhaebo haematiticus Truando Toad (Litter Toad) Rhinella alata South American Common Toad Rhinella granulosa Granular Toad Rhinella margaritifera South American Common Toad Rhinella marina Cane Toad CENTROLENIDAE glass frogs Cochranella euknemos Fringe-limbed Glass Frog Cochranella granulosa Grainy Cochran Frog Espadarana prosoblepon Emerald Glass Frog Sachatamia albomaculata Yellow-flecked Glass Frog Sachatamia ilex Ghost Glass Frog Teratohyla pulverata Chiriqui Glass Frog Teratohyla spinosa Spiny Cochran Frog Hyalinobatrachium chirripoi Suretka Glass Frog Hyalinobatrachium colymbiphyllum Plantation Glass Frog Hyalinobatrachium fleischmanni Fleischmann’s Glass Frog Hyalinobatrachium valeroi Reticulated Glass Frog Hyalinobatrachium vireovittatum Starrett’s Glass Frog CRAUGASTORIDAE robber frogs Craugastor bransfordii Bransford’s Robber Frog Craugastor crassidigitus Isla Bonita Robber Frog Craugastor fitzingeri Fitzinger’s Robber Frog Craugastor gollmeri Evergreen Robber Frog Craugastor megacephalus Veragua Robber Frog Craugastor noblei Noble’s Robber Frog Craugastor stejnegerianus Stejneger’s Robber Frog Craugastor tabasarae Tabasara Robber Frog Craugastor talamancae Almirante Robber Frog DENDROBATIDAE poison dart frogs Allobates talamancae Striped (Talamanca) Rocket Frog Colostethus panamensis Panama Rocket Frog Colostethus pratti Pratt’s Rocket -
The Tadpole of the Glass Frog Hyalinobatrachium Orientale Tobagoense (Anura: Centrolenidae) from Tobago, West Indies J
RESEARCH ARTICLE The Herpetological Bulletin 131, 2015: 19-21 The tadpole of the glass frog Hyalinobatrachium orientale tobagoense (Anura: Centrolenidae) from Tobago, West Indies J. ROGER DOWNIE1*, MOHSEN NOKHBATOLFOGHAHAI2 & LYNDSAY CHRISTIE1 1School of Life Sciences, University of Glasgow, Glasgow G12 8QQ, Scotland, UK 2Biology Department, Faculty of Science, University of Shiraz, Shiraz, Iran 71345 *Corresponding author email: [email protected] ABSTRACT - We describe the tadpole of the Tobago glass frog Hyalinobatrachium orientale tobagoense for the first time. Like the few other Hyalinobatrachium species tadpoles described so far, it lives hidden in sand and gravel at the bottom of stream beds. The tadpoles have relatively long tails and slender lightly pigmented bodies with tiny eyes. They appear to grow very slowly and hind limb buds were not developed in the six week old Gosner stage 25 individuals we describe. INTRODUCTION Photographs were taken using a Nikon D5100 DSLR camera with a Nikkor 40 mm lens. Two specimens were embedded in The glass frog Hyalinobatrachium orientale has been wax, sectioned and stained using H and E in order to examine identified from two localities, the oriental sector of limb development. For the labial tooth row formula, we northeastern Venezuela and the north of the West Indian have followed the recommendation of Altig and McDiarmid island of Tobago. Jowers et al (2014) felt that Hardy’s (1984) (1999a). The remaining specimens have been deposited in original designation of the Tobago population as a sub- the University of Glasgow’s Hunterian Zoology Museum, species, H. o. tobagoense was justified based on Braby et al.’s accession number 1437. -
Early Development of the Glass Frogs Hyalinobatrachium Fleischmanni and Espadarana Callistomma (Anura: Centrolenidae) from Cleavage to Tadpole Hatching
Official journal website: Amphibian & Reptile Conservation amphibian-reptile-conservation.org 8(1) [Special Section]: 89–106 (e88). Early development of the glass frogs Hyalinobatrachium fleischmanni and Espadarana callistomma (Anura: Centrolenidae) from cleavage to tadpole hatching María-José Salazar-Nicholls and Eugenia M. del Pino* Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Av. 12 de Octubre 1076 y Roca, Quito 170517, ECUADOR Abstract.—We report the characteristics of embryonic development from cleavage to tadpole hatching in two species of glass frogs, Hyalinobatrachium fleischmanni and Espadarana callistomma (Anura: Centrolenidae). This analysis of embryonic development in centrolenid frogs enhances comparative studies of frog early development and contributes baseline information for the conservation and management of Ecuadorian frogs. These frogs reproduced in captivity and their embryos were fixed for developmental analysis. The morphology of embryos was evaluated in whole mounts, bisections, thick sections, and fluorescent staining of cell nuclei. Egg clutches contained an average of 23 and 35 eggs for H. fleischmanni and E. callistomma, respectively. The eggs of both frogs measured approximately 2.1 mm in diameter. The eggs of H. fleischmanni were uniformly pale green. In contrast, the animal hemisphere of E. callistomma eggs was dark brown and the vegetal hemisphere was light brown. The developmental time of H. fleischmanni and E. callistomma under laboratory conditions was 6 and 12 days, respectively from the 32–cell stage until tadpole hatching. Differences in environmental conditions may be associated with the time differences of early development observed in these frogs. The development of glass frogs from egg deposition to tadpole hatching was staged into 25 standard stages according to the generalized table of frog development. -
Kermit the Frog
written and illustrated by Mrs. Shellenberger’s First Graders Stony Point School April 2006 We dedicate this book to Jerry Pallotta who wrote the greatest books, Mary Lou Lundgren who helped us with art, research and writing, and to all our friends and families. How We Did It! We were reading the Jerry Pallotta alphabet books, The Yucky Reptile Alphabet Book and The Icky Bug Alphabet Book and wondered about making our own alphabet class book. Maysn brought tadpoles for our class and Ms. Shellenberger thought frogs were really cool. We got books from the library and our own class library and brainstormed a list of all the frogs we could find. We never knew there were so many kinds of frogs. We found out a lot of information from the computer. Ms. Shellenberger made us a special research process log to write and draw in. We drew the red-eyed tree frog with MaryLou Lundgren and figured out all the frog parts. We painted frogs on the computer, too. First, we made the outline and then we colored them. We found a dead dried-up frog in the Japanese Garden. It was interesting to see it up close. We used a magnifying glass. We used the magnifying glass to look at the tadpoles, too, so we could sketch them. The tadpoles grew pretty slow. We took pictures of them for the class web page. After we checked out all the books, we decided which frog we wanted to study more. We drew them on the cover of our process log using colored pencils. -
Julia Salamango Professor Tom Duda Jr. Biology 288 03/23/2020 a CATEGORICAL REVIEW of the GLASS FROG NICHE a Close Analysis
Julia Salamango Professor Tom Duda Jr. Biology 288 03/23/2020 A CATEGORICAL REVIEW OF THE GLASS FROG NICHE A Close Analysis of the Role Glass Frogs Play in their Ecosystem and the Fascinating Adaptations that Selective Pressures have Created ABSTRACT The Centrolenidae family, nicknamed “glass frogs,” are a small but charismatic tree frog species native to Central American rainforests that are best known for their fascinating transparent skin. They have a variety of remarkable adaptations such as obligate male parental care, humeral spines used in combat, dry ovaposition sites, and their skin which exhibits “clutch mimicry.” They play a critical role as mesopredators, feeding on small insects and providing a food source for larger reptiles, arthropods, birds, and bats. Unfortunately, like many other frog species, a combination of climate change, habitat fragmentation, and chytrid fungus threatens the survival of this family. INTRODUCTION TO GLASS FROGS The family Centrolenidae, colloquially known as “glass frogs” due to their transparent abdominal skin, are part of the Anura order; this means that they are tailless vertebrates with compact bodies that experience complex metamorphic life cycles. They are part of the suborder Neobatrachia, (“new frogs”), the largest suborder of frogs. This suborder also contains the most derived features from the last common ancestor of all frog lineages (Rowley, 2014). The Centrolinids are all nocturnal and neotropical, and the family contains an estimated 152 species. They are quite a small bodied lineage of frogs, with an average length of about 2 centimeters. Within the Centrolenidae, there’re three genera: (1) the centrolene, known for its humeral spines; (2) the hyalinobatrachium, known for their bulbous white liver; and (3) the cochronella, who lack hand webbing, humeral spines, and a bulbous liver. -
Amphibian Ark News
Number 15, June 2011 The Amphibian Ark team is pleased to send you the latest edition of our e- newsletter. We hope you enjoy reading it. Amphibian Ark photography contest winners announced! The Amphibian Ark Amphibian Ark photography contest winners Pre-order your 2012 AArk announced! calendars now! What an amazing response to our amphibian photography competition! And the winners are.... AArk 2011 Seed Grant Read More >> winners Pre-order your 2012 AArk calendars now! Wouldn't you like to be an The twelve winning photos from our international amphibian photography AArk Sustaining Donor too? competition have now been made into a beautiful calendar for 2012. You can order your calendars now! Conservation Needs Read More >> Assessment workshop for Caribbean amphibians AArk 2011 Seed Grant winners New AArk brochure and Amphibian Ark is pleased to announce the winners of the 2011 Seed Grant booklet program. These $5,000 competitive grants are designed to fund small start-up projects that are in need of seed money in order to build successful long-term programs that attract larger funding. New Frog MatchMaker Read More >> projects Launch of the Global Wouldn't you like to be an AArk Sustaining Donor too? Amphibian Blitz In 2009, three institutions pledged to donate their current amount of general operating support to the Amphibian Ark each year through 2013. We’re asking other zoos, aquariums and other facilities to follow their lead and become AArk Frog vets on the go! Sustaining Donors. Amphibian Veterinary Outreach Program continues Read More >> work in Ecuador Conservation Needs Assessment workshop for Conservation and breeding of Caribbean amphibians the Japanese Giant In March 2011, Amphibian AArk staff facilitated two Amphibian Conservation Needs Salamander at Asa Zoo Assessment workshops in Santo Domingo, Dominican Republic, in the Caribbean. -
The Frog Files (K-6) [PDF – 5.67
AN EDUCATOR’S GUIDE TO FROGS K-6 Author: Terra Brie Stewart Koval, [email protected] Design & Illustrations: Rost Koval, [email protected], www.mangobonz.150m.com Editor: Neala MacDonald Frogwatch Illustrations: Wallace Edwards, courtesy of the Toronto Zoo This guide has been written by Terra Brie Stewart Koval and designed by Rost Koval through a Science Horizon's Grant with additional support from the Ecological Monitoring and Assessment Network Coordinating Office. This teachers guide is free from copyright when used for educational purposes. If reproduced we ask that you credit the author and the Ecological Monitoring and Assessment Network Coordination Office. DEAR EDUCATOR, Throughout most of history, people have not regarded reptiles and amphibians with high opinion. In fact the 18th century Swedish botanist and zoologist Carolus Linnaeus, famous for his classification system, presented a very strong example of the prevailing attitude toward reptiles and amphibians: "These foul and loathsome animals are abhorrent because of their cold body, pale colour, cartilaginous skeleton, filthy skin, fierce aspect, calculating eye, offensive smell, harsh voice, squalid habitation, and terrible venom; and so their Creator has not exerted his powers to make more of them." Although this attitude may still be representative of many people’s impressions of snakes, it seems that for the most part, our attitude towards frogs has grown to be a little more civilized—or at least it remains so in our children. Children are fascinated by frogs—and with good reason. They are cute, they are easily caught, they make cool sounds, and they have been found in abundance (although their decline is the whole reason programs like FrogWatch have come into existence).