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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. -
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. -
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). -
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? ............................................................................. -
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). -
Frogs and Toads of Rhode Island
FROG & TOAD Chug-o-rum! Peep-peeep-peeep! Kraack-arrack! Frogs and toads thrive in the many ponds, forests , felds and open woodlands found on Audubon wildlife refuges. Spring and summer are great times to look and listen for them. Listed below are the common species found in Rhode Island. Bullfrog Northern Leopard Frog (Rana catesbeiana) (Rana pipiens) Bullfrogs are the largest frog in the United States Leopard frogs, as their name implies, are covered and have smooth, dull green to brown skin with in many, round black spots with lighter outlines. dark spots. Males have a yellow chin, and females Teir base color is usually brown or green but can have a white chin. Males make a deep echoing vary into yellow or blue. Tey have raised, golden croak “Chug-o-rum, Chug-o-rum” call in early ridges running down their back. Tey can be found summer. It can sound like a cow mooing, which in meadows and grasslands in the warmer months is why the word “bull” is in its name. Tey eat and near ponds and streams during breeding season. many insects, but will also eat fsh, rodents and Teir calls sound like a mix of “chucks” and “old small birds. creaky door” sounds. Green Frog Pickerel Frog (Rana clamitans) (Rana palustris) Green frogs greatly resemble bullfrogs, with a bright Nearly the twin of the leopard frog, pickerel green head and shoulders and hints of brown, blue or frogs are distinguished by their spots being black, but can be distinguished by the raised ridges square shaped rather than round and a bright down their backs. -
The Case of the Missing Frogs by Bryan Hamilton Why Are There No
The Case of the Missing Frogs By Bryan Hamilton Why are there no frogs in Great Basin National Park? Great Basin National Park seems like a perfect refuge for frogs, with plenty of water--ten perennial streams, hundreds of springs, and six alpine lakes, but apparently there are no amphibians. During 2002, an amphibian inventory was conducted within Great Basin National Park. Crews surveyed perennial streams, springs, and alpine lakes, but did not observe any adult amphibians, tadpoles, or egg masses. The reasons for this are unclear, but apparently frog distribution depends on more than just abundant water. Lack of suitable breeding habitat is a major limiting factor in amphibian distribution. Most amphibians require still or extremely slow moving water to lay their eggs in. High gradient streams in the Park do not provide appropriate breeding habitat. The hundreds of springs in the Park may provide this habitat, however, no amphibians were found at the dozens of springs surveyed this year. Isolation from source populations is another limiting factor. Streams leave the Park and then quickly disappear underground. Amphibian populations near the Park are not directly connected to these streams. Thus no corridors exist between the Park and nearby amphibian populations. One amphibian species that does not require aquatic corridors for migration is the Great Basin Spadefoot (Spea intermontana), commonly referred to as a "toad." Spadefoots are distinguished from "true toads" (members of the family Bufonidae) by a black wedge shaped spade on their hind feet, used for burrowing. Spadefoots move considerable distances over land during spring and summer rains, travelling to breeding sites. -
Species Limits, and Evolutionary History of Glassfrogs
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athematical representation is inevitably simplistic, and occasionally one has to be brutal in forcing it to suit a reality that can only be very complex. And yet, there is a beauty about trees because of the simplicity with which they allow you to describe a series of events […]. But one must ask whether one is justified simplifying reality to the extent necessary to represent it as a tree. Cavalli-Sforza, Genes, People, and Languages (2001) The universe is no narrow thing and the order within it is not constrained by any latitude in is conception to repeat what exists in one part in any other part. Even in this world more things exist -
This Article Appeared in a Journal Published by Elsevier. the Attached
(This is a sample cover image for this issue. The actual cover is not yet available at this time.) This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues. Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier’s archiving and manuscript policies are encouraged to visit: http://www.elsevier.com/copyright Author's personal copy Toxicon 60 (2012) 967–981 Contents lists available at SciVerse ScienceDirect Toxicon journal homepage: www.elsevier.com/locate/toxicon Antimicrobial peptides and alytesin are co-secreted from the venom of the Midwife toad, Alytes maurus (Alytidae, Anura): Implications for the evolution of frog skin defensive secretions Enrico König a,*, Mei Zhou b, Lei Wang b, Tianbao Chen b, Olaf R.P. Bininda-Emonds a, Chris Shaw b a AG Systematik und Evolutionsbiologie, IBU – Fakultät V, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky Strasse 9-11, 26129 Oldenburg, Germany b Natural Drug Discovery Group, School of Pharmacy, Medical Biology Center, Queen’s University, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, UK article info abstract Article history: The skin secretions of frogs and toads (Anura) have long been a known source of a vast Received 23 March 2012 abundance of bioactive substances. -
Amphibians of the Jordan River Compiled by Dan Potts, Local Naturalist, Revised 2011
Amphibians of the Jordan River compiled by Dan Potts, local naturalist, revised 2011 SALAMANDERS (AMBYSTOMIDAE) Arizona tiger salamander Ambystoma tigrinum nebulosum rare SPADEFOOT TOADS (PELOBATIDAE) Great Basin spadefoot (toad) Spea intermontana uncommon TRUE TOADS (BUFONIDAE) Boreal (Western) toad Bufo boreas boreas common Western Woodhouses toad Bufo woodhousei woodhousei common TREE TOADS (HYLIDAE) Boreal (Striped) chorus frog Pseudacris triseriata maculata common TRUE FROGS (RANIDAE) Northern leopard frog Rana pipiens brachycephala rare Spotted frog Rana pretiosa pretiosa rare, endangered species Bullfrog Rana catesbeiana common, exotic, nuisance species Green frog Rana clamitans rare, exotic Ecology Most amphibians are no longer as common on the Jordan River, nor around the world as they once were. There have been major declines in many species. For example, where vast numbers of leopard frogs could be found on the banks of the Jordan only twenty years ago, I have been unable to find even a single individual for years! On the other hand, populations of introduced exotic species like the bull frog are apparently expanding. A few like the striped chorus frog seem to be holding their own. Cars, and predators like foxes and domestic and introduced exotics like cats and raccoons have all played a part in some of these declines. Some species may be especially sensitive to chemicals like the herbicide Roundup, the depletion of earth’s protective ozone layer, and a disease called kitrid which have all been implicated in the demise of many species worldwide. Only three natives and the one exotic (see above) are currently common in the river’s corridor. One species is endangered, others are threatened as amphibians in general appear to a be the veritable Acanary in the mine@ for predicting the ecological demise of many ground-based vertebrates, unless we clean up our act and start caring for them. -
ROCKY MOUNTAIN TAILED FROG Ascaphus Montanus
ROCKY MOUNTAIN T AILED FROG Ascaphus montanus Original prepared by Linda A. Dupuis Species Information copper bar or triangle between the eyes and snout, with green undertones (Metter 1964a). Taxonomy Tadpoles are roughly 11 mm in length upon hatching, and can reach up to 65 mm long prior to Phylogenetic studies have determined that tailed metamorphosis (Brown 1990). They possess a wide frogs belong in their own monotypic family, flattened oral disc modified into a suction mouth for Ascaphidae (Green et al. 1989; Jamieson et al. 1993). clinging to rocks in swift currents and grazing Recent phylogeographic analysis has determined that periphyton (Metter 1964a, 1967; Nussbaum et al. coastal and inland assemblages of the tailed frog are 1983), a ventrally flattened body, and a laterally sufficiently divergent to warrant designation as two compressed tail bordered by a low dorsal fin. They distinct species: Ascaphus truei and Ascaphus are black or light brownish-grey, often with fine montanus (Nielson et al. 2001). The divergence of black speckling; lighter flecks may or may not be coastal and inland populations is likely attributable present (Dupuis, pers. obs.). The tadpoles usually to isolation in refugia in response to the rise of the possess a white dot (ocellus) on the tip of the tail Cascade Mountains during the late Miocene to early and often have a distinct copper-coloured bar or Pliocene (Nielson et al. 2001). triangle between the eyes and snout. Hatchlings lack The Coastal Tailed Frog and Rocky Mountain Tailed pigmentation, and are most easily characterized by Frog are the only members of the family Ascaphidae the large, conspicuous yolk sac in the abdomen. -
Riparian Management and the Tailed Frog in Northern Coastal Forests
Forest Ecology and Management 124 (1999) 35±43 Riparian management and the tailed frog in northern coastal forests Linda Dupuis*,1, Doug Steventon Centre for Applied Conservation Biology, Department of Forest Sciences, University of British Columbia, Vancouver, BC, Canada V6T 1Z4 Ministry of Forests, Prince Rupert Region, Bag 5000, Smithers, BC, Canada V0J 2N0 Received 28 July 1998; accepted 19 January 1999 Abstract Although the importance of aquatic environments and adjacent riparian habitats for ®sh have been recognized by forest managers, headwater creeks have received little attention. The tailed frog, Ascaphus truei, inhabits permanent headwaters, and several US studies suggest that its populations decline following clear-cut logging practices. In British Columbia, this species is considered to be at risk because little is known of its abundance, distribution patterns in the landscape, and habitat needs. We characterized nine logged, buffered and old-growth creeks in each of six watersheds (n 54). Tadpole densities were obtained by area-constrained searches. Despite large natural variation in population size, densities decreased with increasing levels of ®ne sediment (<64 mm diameter), rubble, detritus and wood, and increased with bank width. The parameters that were correlated with lower tadpole densities were found at higher levels in clear-cut creeks than in creeks of other stand types. Tadpole densities were signi®cantly lower in logged streams than in buffered and old-growth creeks; thus, forested buffers along streams appear to maintain natural channel conditions. To prevent direct physical damage and sedimentation of channel beds, we suggest that buffers be retained along permanent headwater creeks. Creeks that display characteristics favoring higher tadpole densities, such as those that have coarse, stable substrates, should have management priority over less favorable creeks.