The Frog Files (K-6) [PDF – 5.67

Total Page:16

File Type:pdf, Size:1020Kb

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). For these reasons, frogs are perfect candidates with which to nourish a growing curiosity in living things and encourage an appreciation for the natural world as a whole. The well-being of the other species we share this earth with depends a great deal on our attitudes towards them; in a world so pressured to fulfill human needs, a species must have value if it is to be conserved with zeal. Instilling a life long passion for nature in upcoming generations is our responsibility: it ensures us that we will have individuals in our future communities whose love for nature will place priority on maintaining biodiversity and the health of our home, the Earth. Frog on, Friends. Acknowledgements Although I am the official author of this educator’s guide, I feel this project is more of a collaborative effort, and without the support of many enthusiastic individuals and dedicated organizations, this project would not have been possible. I want to begin by thanking the providers of the financial backing for this project through a Science Horizons Youth Internship: Environment Canada’s Ecological Monitoring Assessment Network (EMAN), Nature Canada and Nature Saskatchewan. Still, it is the passionate individuals within these organizations who provided me with invaluable assistance over the last six months. Neala Macdonald, Nature Canada’s Education Specialist, not only volunteered many, many hours of her time to edit my guide and answer countless questions, but also gave me a great deal of moral support and, having “been there before” as the author of the Grade 7-12 FrogWatch guide, understanding along this journey. Neala’s diligence, commitment, and dedication have transformed this guide from a draft into a professional document in which I hold a great deal of pride. Brian Craig (EMAN) was my directional force in this project. Having been an elementary schoolteacher himself for many years, Brian was able to communicate to me his knowledge of students and share his classroom experiences, which served as signals that I was heading in the right direction. At times when I felt I was treading into unknown waters, it was Brian’s unwavering confidence in me that acted as the compass that directed me to the completion of this guide. Margaret Skeel and Paul Dumont at Nature Saskatchewan battled away at many the logistics in this project; they also made me feel very welcome within the community of Nature Saskatchewan. Andy Didiuk, Saskatchewan’s provincial FrogWatch coordinator at the Prairie and Northern Wildlife Research Centre, provided me with scientific guidance and a fantastic work environment. There is another group of individuals that have been instrumental in this project—the teachers and the schools. I not only had a volunteer committee of teachers to review my guide, but also entire classrooms who welcomed me into their community to conduct my research. I want to start by thanking Tim Haughian, the director of Environmental Education in the Saskatoon Catholic Schools, for finding a number of classrooms for me to visit. Tim’s passion for environmental education is an inspiring force to anyone who has had the opportunity of meeting him. THE Frog FILES 3 I received an equally powerful sense of inspiration from Marcia Klein, and environmental educator with the Saskatoon Public School Division. Marcia has reminded me of our responsibility to youth—our duty to share the love of nature with them and thus nourish their budding appreciation for our outdoor world. We pass our world with aging, hopeful hands into the strong, determined hands of upcoming generations. I would like to thank my teacher reviewers Wendy Hyshka, Alandina Laplante, and Greg Bubnick for reviewing my draft and stimulating new ideas for the guide during at a very busy time in the school year. One stage in the writing process of this guide was learning my audience. I spent a few weeks touring schools and meeting the individuals I was really writing for—the students. I initially visited classes to assess the grade level of the students and later returned to some classes to test drive activities. In the Saskatoon Catholic School division, I owe thanks to Wendy Hyshka’s Kindergarten class at St. James School; Michelle McAuley’s grade 1 class at Sr. O’Brien School; Alandina Laplante’s grade 2 class at St. Mark School; Cathy Coumont’s grade 3 class at St. Frances School; Richard Blanchet’s grade 4 class at St. Paul School; Greg Bubnick’s grade 5 class at St. John School; and Norbert Schidlowsky’s grade 6/7 class at St. Peter School. In the Saskatoon Public School Division, much thanks is extended to Roberta Irinici’s grade 2 class at Sutherland School; Kathy Probert’s grade 2/3 class at North Park Wilson School; and Dianne Martin’s grade 4 class at Brunskill School. And finally, I want to thank all of you, the educators, who are taking the initiative to introduce environmental education into your classrooms. Your dedication to teaching youth about our global home and the interconnectedness of its inhabitants is the key to creating sustainable ecosystems for hundreds of generation to come. Terra Brie Stewart Koval, B.Sc. 4 THE Frog FILES Table of Contents INTRODUCTION ..................................................................................................................................7 0.1 The Amazing World of Frogs ............................................................................................9 0.2 The 10th Annual Canadian Frog Conference ..................................................................14 BIOLOGY AND CLASSIFICATION......................................................................................................19 1.1 Leap Around the World ..................................................................................................21 1.2 Who Am I: Frog or Toad?................................................................................................26 1.3 Is that a Frog on Your Finger or a Toad on Your Thumb? ................................................31 1.4 If You Were a Frog..........................................................................................................36 1.5 Wood Frog: Connect the dots ........................................................................................38 1.6 Anatomical Anagrams ....................................................................................................40 1.7 It's All Latin to Me ..........................................................................................................42 1.8 Name That Frog..............................................................................................................44 REPRODUCTION AND DEVELOPMENT ............................................................................................47 2.1 Musical Metamorphosis..................................................................................................49 2.2 Wheel of Life..................................................................................................................53 2.3 CrissCrossed Frogs..........................................................................................................56 2.4 Whose Life is it Anyway?................................................................................................60 2.5 Far out Frogs ..................................................................................................................62 BEHAVIOUR AND ADAPTATION ......................................................................................................65 3.1 The Fabulous Functions of Frog Feet ..............................................................................67 3.2 The Frog Olympics..........................................................................................................70
Recommended publications
  • Ascaphus Truei) Across
    LIFE HISTORY OF THE COASTAL TAILED FROG (ASCAPHUS TRUEI) ACROSS AN ELEVATIONAL GRADIENT IN NORTHERN CALIFORNIA By Adrian Daniel Macedo A Thesis Presented to The Faculty of Humboldt State University In Partial Fulfillment of the Requirements for the Degree Master of Science in Biology Committee Membership Dr. John O. Reiss, Committee Chair Dr. Daniel C. Barton, Committee Member Dr. Karen L. Pope, Committee Member Dr. Sharyn B. Marks, Committee Member Dr. Erik Jules, Program Graduate Coordinator December 2019 ABSTRACT LIFE HISTORY OF THE COASTAL TAILED FROG (ASCAPHUS TRUEI) ACROSS AN ELEVATIONAL GRADIENT IN NORTHERN CALIFORNIA Adrian D. Macedo The life history of a species is described in terms of its growth, longevity, and reproduction. Unsurprisingly, life history traits are known to vary in many taxa across environmental gradients. In the case of amphibians, species at high elevations and latitudes tend to have shorter breeding seasons, shorter activity periods, longer larval periods, reach sexual maturity at older ages, and produce fewer and larger clutches per year. The Coastal Tailed Frog (Ascaphus truei) is an ideal species for the study of geographic variation in life history because it ranges across most of the Pacific Northwest from northern California into British Columbia, and along its range it varies geographically in larval period and morphology. During a California Department of Fish and Wildlife restoration project in the Trinity Alps Wilderness, I had incidental captures of Coastal Tailed Frog larvae and adults. To date, no population across the species’ range has been described above 2000m. These populations in the Trinity Alps range from 150m to over 2100m in elevation, and those that are in the higher part of the range are likely living at the species’ maximum elevational limit.
    [Show full text]
  • 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.
    [Show full text]
  • Managing Diversity in the Riverina Rice Fields—
    Reconciling Farming with Wildlife —Managing diversity in the Riverina rice fields— RIRDC Publication No. 10/0007 RIRDCInnovation for rural Australia Reconciling Farming with Wildlife: Managing Biodiversity in the Riverina Rice Fields by J. Sean Doody, Christina M. Castellano, Will Osborne, Ben Corey and Sarah Ross April 2010 RIRDC Publication No 10/007 RIRDC Project No. PRJ-000687 © 2010 Rural Industries Research and Development Corporation. All rights reserved. ISBN 1 74151 983 7 ISSN 1440-6845 Reconciling Farming with Wildlife: Managing Biodiversity in the Riverina Rice Fields Publication No. 10/007 Project No. PRJ-000687 The information contained in this publication is intended for general use to assist public knowledge and discussion and to help improve the development of sustainable regions. You must not rely on any information contained in this publication without taking specialist advice relevant to your particular circumstances. While reasonable care has been taken in preparing this publication to ensure that information is true and correct, the Commonwealth of Australia gives no assurance as to the accuracy of any information in this publication. The Commonwealth of Australia, the Rural Industries Research and Development Corporation (RIRDC), the authors or contributors expressly disclaim, to the maximum extent permitted by law, all responsibility and liability to any person, arising directly or indirectly from any act or omission, or for any consequences of any such act or omission, made in reliance on the contents of this publication, whether or not caused by any negligence on the part of the Commonwealth of Australia, RIRDC, the authors or contributors. The Commonwealth of Australia does not necessarily endorse the views in this publication.
    [Show full text]
  • Ecol 483/583 – Herpetology Lab 3: Amphibian Diversity 2: Anura Spring 2010
    Ecol 483/583 – Herpetology Lab 3: Amphibian Diversity 2: Anura Spring 2010 P.J. Bergmann & S. Foldi (Modified from Bonine & Foldi 2008) Lab objectives The objectives of today’s lab are to: 1. Familiarize yourself with Anuran diversity. 2. Learn to identify local frogs and toads. 3. Learn to use a taxonomic key. Today’s lab is the second in which you will learn about amphibian diversity. We will cover the Anura, or frogs and toads, the third and final clade of Lissamphibia. Tips for learning the material Continue what you have been doing in previous weeks. Examine all of the specimens on display, taking notes, drawings and photos of what you see. Attempt to identify the local species to species and the others to their higher clades. Quiz each other to see which taxa are easy for you and which ones give you troubles, and then revisit the difficult ones. Although the Anura has a conserved body plan – all are rather short and rigid bodied, with well- developed limbs, there is an incredible amount of diversity. Pay close attention to some of the special external anatomical traits that characterize the groups of frogs you see today. You will also learn to use a taxonomic key today. This is an important tool for correctly identifying species, especially when they are very difficult to distinguish from other species. 1 Ecol 483/583 – Lab 3: Anura 2010 Exercise 1: Anura diversity General Information Frogs are a monophyletic group comprising the order Anura. Salientia includes both extant and extinct frogs. Frogs have been around since the Triassic (~230 ma).
    [Show full text]
  • BOA2.1 Caecilian Biology and Natural History.Key
    The Biology of Amphibians @ Agnes Scott College Mark Mandica Executive Director The Amphibian Foundation [email protected] 678 379 TOAD (8623) 2.1: Introduction to Caecilians Microcaecilia dermatophaga Synapomorphies of Lissamphibia There are more than 20 synapomorphies (shared characters) uniting the group Lissamphibia Synapomorphies of Lissamphibia Integumen is Glandular Synapomorphies of Lissamphibia Glandular Skin, with 2 main types of glands. Mucous Glands Aid in cutaneous respiration, reproduction, thermoregulation and defense. Granular Glands Secrete toxic and/or noxious compounds and aid in defense Synapomorphies of Lissamphibia Pedicellate Teeth crown (dentine, with enamel covering) gum line suture (fibrous connective tissue, where tooth can break off) basal element (dentine) Synapomorphies of Lissamphibia Sacral Vertebrae Sacral Vertebrae Connects pelvic girdle to The spine. Amphibians have no more than one sacral vertebrae (caecilians have none) Synapomorphies of Lissamphibia Amphicoelus Vertebrae Synapomorphies of Lissamphibia Opercular apparatus Unique to amphibians and Operculum part of the sound conducting mechanism Synapomorphies of Lissamphibia Fat Bodies Surrounding Gonads Fat Bodies Insulate gonads Evolution of Amphibians † † † † Actinopterygian Coelacanth, Tetrapodomorpha †Amniota *Gerobatrachus (Ray-fin Fishes) Lungfish (stem-tetrapods) (Reptiles, Mammals)Lepospondyls † (’frogomander’) Eocaecilia GymnophionaKaraurus Caudata Triadobatrachus Anura (including Apoda Urodela Prosalirus †) Salientia Batrachia Lissamphibia
    [Show full text]
  • Analyses of Proposals to Amend
    CoP17 Prop. 38 Inclusion of False Tomato Frog Dyscophus guineti and Antsouhy Tomato Frog D. insularis in Appendix II Proponent: Madagascar Summary: The False Tomato Frog Dyscophus guineti and the Antsouhy Tomato Frog D. insularis comprise two of three species in the genus Dyscophus, all of which are endemic to Madagascar. The third species, D. antongilii was included in Appendix I in 1987. It is subject to a separate proposal to be transferred from Appendix I to Appendix II (Proposal 37). All three are attractive red-orange coloured frogs. Dyscophus are known to breed explosively with the availability of water during the rainy season (typically January-March) and during that time they can be found in abundance at breeding sites. Hundreds of eggs are laid in water following mating. Dyscophus guineti The known distribution of D. guineti includes a number of patches in the remnant central eastern rainforest of Madagascar. The species is secretive and believed likely to be more widespread than records indicate1. Overall population is unknown; locally the species can vary from extremely common to very rare1. Sexual maturity is attained between two and four years, comparatively earlier in males than in females2. The habitat of the species is affected by conversion of forest to agriculture, timber extraction, charcoal production and potentially small-scale mining activities. The species reportedly does not tolerate severe degredation1. There is not known to be local use of the species. As a consequence of the Appendix-I listing in 1987 of the similar Dyscophus antongilii, collectors interested in "red Dyscophus" have shifted their attention to D.
    [Show full text]
  • SHIS 056.Pdf
    A Bibliography of the Green Frog. Paivia clamitatjs Latreille 1801-B81 MARGARET M. STEWART & LINDA F. BIUSO Department of Biological Sciences State University of Mew York at Albany SMITHSONIAN HERPETOLOGICAL INFORMATION SERVICE NO. 56 1982 •"^'VX V ^/SRARIES ,.- SMITHSONIAN HERPETOLOGICAL INFORMATION SERVICE The SHIS series publishes and distributes translations, bibliographies, indices, and similar items judged useful to individuals interested in the biology of amphibians and reptiles, but unlikely to be published in the normal technical journals. Single copies are distributed free to interested individuals. Libraries, herpetological associations, and research laboratories are invited to exchange their publications with us. We wish to encourage individuals to share their bibliographies, translations, etc. with other herpetologists through the SHIS series. If you have such items please contact George Zug for instructions. Contributors receive 50 free copies. Please address all requests for copies and inquiries to George Zug, Division of Reptiles and Amphibians, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560, U.S.A. INTRODUCTION Rana clamitans , the green frog, is one of the most abundant and widespread ranids in North America. It occurs throughout eastern North America from central Florida to 50° N Latitude in Canada. The literature concerning the species, described in 1801, is vast. With the help of numerous persons, we have attempted to compile a complete bibliography, through 1981, of publications concerning the green frog. We have listed papers and notes containing substantive information about the species, including range records. Papers that only mentioned other references already included are omitted. Although all references have not been checked, we included them if the source were reliable.
    [Show full text]
  • Cop17 Prop. 37
    Original language: English CoP17 Prop. 37 CONVENTION ON INTERNATIONAL TRADE IN ENDANGERED SPECIES OF WILD FAUNA AND FLORA ____________________ Seventeenth meeting of the Conference of the Parties Johannesburg (South Africa), 24 September – 5 October 2016 CONSIDERATION OF PROPOSALS FOR AMENDMENT OF APPENDICES I AND II A. Proposal Downlisting of Dyscophus antongilii from Appendix I to Appendix II B. Proponent Madagascar* C. Supporting statement 1. Taxonomy 1.1 Class: Amphibia 1.2 Order: Anura 1.3 Family: Microhylidae Gunther 1859, subfamily Dyscophinae 1.4 Genus, species: Dyscophus antongilii Grandidieri 1877 1.5 Scientific synonyms: 1.6 Common names: English: Tomato Frog French: La grenouille tomate, crapaud rouge de Madagascar Malagasy: Sahongoangoana, Sangongogna, Sahogongogno (and similar writings) 2. Overview The genus Dyscophus contains three species of large microhylids composing the subfamily Dyscophinae endemic to Madagascar. D. antongilii, D. guineti and D. insularis. Dyscophus antongilii is red-orange in coloration and commonly called the tomato frogs because of its appearance. It is well-known and iconic amphibian species. Described by Alfred Grandidier in the 1877, D. antongilii occurs in a moderate area of northeast and east of Madagascar. Dyscophus antongilii has been listed within CITES Appendix I since 1987 while the other two species currently have no CITES listing but proposed to be inserted into Appendix II for this year by a separate proposal. Some studies on the species led by F. Andreone demonstrate that this species is frequently found outside of protected area and one of the strategies to conservation purpose is the trade. The species is listed as Near Threatened on the IUCN Red List.
    [Show full text]
  • DNR Letterhead
    ATU F N RA O L T R N E E S M O T U STATE OF MICHIGAN R R C A P DNR E E S D MI N DEPARTMENT OF NATURAL RESOURCES CHIG A JENNIFER M. GRANHOLM LANSING REBECCA A. HUMPHRIES GOVERNOR DIRECTOR Michigan Frog and Toad Survey 2009 Data Summary There were 759 unique sites surveyed in Zone 1, 218 in Zone 2, 20 in Zone 3, and 100 in Zone 4, for a total of 1097 sites statewide. This is a slight decrease from the number of sites statewide surveyed last year. Zone 3 (the eastern half of the Upper Peninsula) is significantly declining in routes. Recruiting in that area has become necessary. A few of the species (i.e. Fowler’s toad, Blanchard’s cricket frog, and mink frog) have ranges that include only a portion of the state. As was done in previous years, only data from those sites within the native range of those species were used in analyses. A calling index of abundance of 0, 1, 2, or 3 (less abundant to more abundant) is assigned for each species at each site. Calling indices were averaged for a particular species for each zone (Tables 1-4). This will vary widely and cannot be considered a good estimate of abundance. Calling varies greatly with weather conditions. Calling indices will also vary between observers. Results from the evaluation of methods and data quality showed that volunteers were very reliable in their abilities to identify species by their calls, but there was variability in abundance estimation (Genet and Sargent 2003).
    [Show full text]
  • 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? .............................................................................
    [Show full text]
  • Helminths of the Plains Spadefoot, Spea Bombifrons, the Western Spadefoot, Spea Hammondii, and the Great Basin Spadefoot, Spea Intermontana (Pelobatidae)
    Western North American Naturalist Volume 62 Number 4 Article 13 10-28-2002 Helminths of the plains spadefoot, Spea bombifrons, the western spadefoot, Spea hammondii, and the Great Basin spadefoot, Spea intermontana (Pelobatidae) Stephen R. Goldberg Whittier College, Whittier, California Charles R. Bursey Pennsylvania State University, Shenago Valley Campus, Sharon, Pennsylvania Follow this and additional works at: https://scholarsarchive.byu.edu/wnan Recommended Citation Goldberg, Stephen R. and Bursey, Charles R. (2002) "Helminths of the plains spadefoot, Spea bombifrons, the western spadefoot, Spea hammondii, and the Great Basin spadefoot, Spea intermontana (Pelobatidae)," Western North American Naturalist: Vol. 62 : No. 4 , Article 13. Available at: https://scholarsarchive.byu.edu/wnan/vol62/iss4/13 This Note is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Western North American Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. Western North American Naturalist 62(4), © 2002, pp. 491–495 HELMINTHS OF THE PLAINS SPADEFOOT, SPEA BOMBIFRONS, THE WESTERN SPADEFOOT, SPEA HAMMONDII, AND THE GREAT BASIN SPADEFOOT, SPEA INTERMONTANA (PELOBATIDAE) Stephen R. Goldberg1 and Charles R. Bursey2 Key words: Spea bombifrons, Spea hammondii, Spea intermontana, helminths, Trematoda, Cestoda, Nematoda. The plains spadefoot, Spea bombifrons (Cope, mm ± 2 s, range = 54–61 mm), 8 from Nevada 1863), occurs from southern Alberta, Saskatch- (SVL = 50 mm ± 3 s, range = 47–55 mm), and ewan, and Manitoba to eastern Arizona and 14 from Utah (SVL = 57 mm ± 6 s, range = northeastern Texas south to Chihuahua, Mexico; 44–67 mm).
    [Show full text]
  • Western Toad Taxonomy Description
    WESTERN TOAD TAXONOMY Scientific name: Bufo boreas (Baird and Girard, 1852) Common name: Western toad Family: Bufonidae Taxonomic comments: Hybridizes with the red-spotted toad (Bufo punctatus) at Darwin Falls, Inyo County, California, and sometimes with Canadian toad (B. hemiophrys) in central Alberta. B. nelsoni was formerly included in this species. Molecular data indicate that B.exsul is phylogenetically nested within B. canorus; further data are needed to determine whether B. exsul should be subsumed with B. canorus (Shaffer et al. 2000). "Stephens (2001) examined mitochondrial DNA from 8 Yosemite toads (selected from the samples examined by Shaffer et al. (2000) to represent the range of variability found in that study) and 173 western toads. Stephens' data indicate that Bufo in the Sierra Nevada occur in northern and southern evolutionary groups, each of which include both Yosemite and western toads (i.e., toads of both species are more closely related to each other within a group than they are to members of their own species in the other group). Further genetic analysis of Yosemite toads sampled from throughout their range, and from other toad species surrounding their range is needed to fully understand the evolutionary history and appropriate taxonomic status of the Yosemite toad." (USFWS 2002). DESCRIPTION Basic description: A toad. General description: A chunky, short-legged, warty amphibian with dominant parotoid glands at the back of the head and a conspicuous light-colored stripe running down the middle of the back. Coloration varies from brown, green to gray above and white with dark mottling below. Females are usually larger, more blotched, and have rougher skin than males (Hodge 1976, MacDonald 2003).
    [Show full text]