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Lecture 2

by: Sierra

Lecture 2 FNR 251


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Taxonomy Amphibians
Ecology And Systematics Of Amphibians, Reptiles, And Birds
Rod N. Williams
Class Notes
Ecology, amphibians, reptiles, forestry, Natural Resources
25 ?




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This 21 page Class Notes was uploaded by Sierra on Saturday February 6, 2016. The Class Notes belongs to FNR 251 at Purdue University taught by Rod N. Williams in Spring 2016. Since its upload, it has received 31 views. For similar materials see Ecology And Systematics Of Amphibians, Reptiles, And Birds in Agriculture and Forestry at Purdue University.

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Date Created: 02/06/16
LECTURE 2: TAXONOMY WITH CHARACTERISTICS: AMPHIBIANS American Toad Anaxyrus americanus Review of Terms: Lecture 2  Anatomical Features: Costal groove, Dorso-lateral folds, Naso-labial groove, Parotid glands  Reproductive and Developmental Terms: Amplexus, External fertilization, Eft, Explosive breeder, Aggregate breeder, Internal fertilization, Neotenic development, Tadpole  Habitat Term: Fossorial General Information for Each Taxonomic Group Morphological characteristics Habits & Habitat Reproduction & Development Diet Geographic distribution: Present in Indiana? Conservation status  Photographs of representative species I. Order Gymnophiona: Caecilians Ichthyophis kohtaoensis Purple Caecilian (Gymnopis multiplicata) II. Order Caudata (or Urodela): Salamanders II.c. Salamanders: Family Sirenidae (“Sirens”) Paedomorphic We(Siren intermedia) II.a. Salamanders: Family Cryptobranchidae Eastern Hellbender Cryptobranchus alleganiensis ENDANGERED II.b. Salamanders: Family Proteidae (“Mudpuppies”) Mudpuppy or Waterdog (Necturus maculosus) II.d. Salamanders: Family Ambystomatidae (“Mole Salamanders”) Eastern Tiger Salamander (Ambystoma tigrinum) (Ambystoma maculatum) II.e. Salamanders: Family Plethodontidae (“Lungless Salamanders”) Four-toed Salamander (Hemidactylium scutatum) ENDANGERED Green Salamander (Aneides aeneus) ENDANGERED II.f. Salamanders: Family Salamandridae (“Newts”) Central Newt A (Notophthalmus viridescens louisianensis) B B A Red-spotted Newt: (Notophthalmus viridescens viridescens) A) Eft B) Adult Anuran Diversity • Currently 45 families • ~ 5,500 species • Taxonomy is constantly changing – Species discoveries – Genetic technologies III. Order Anura: Frogs and Toads Cranial Crests Dorso-lateral Fold No Fold Parotid Glands Warts Tympanum Dorso-lateral Fold Toepads Parotid Gland III.e. Frogs and Toads: Family Leiopelomatidae (“Tailed Frog”) (Ascaphus truei) III.d. Frogs and Toads: Family Scaphiopodidae (“Nearctic Spadefoot Toads”) (Scaphiopus holbrookii) SPECIAL CONCERN III.b. Frogs and Toads: Family Hylidae (“Tree Frogs”) III.b. Frogs and Toads: Family Hylidae (“Tree Frogs”) III.g. Frogs and Toads: Family Centrolenidae (“glass frogs”) III.a. Frogs and Toads: Family Bufonidae (“Toads”) A American Toad (Anaxyrus americanus) Marine Toad (Rhinella III.c. Frogs and Toads: Family Ranidae (“True Frogs”) Bullfrog (Lithobates catesbeianus) III.f. Frogs and Toads: Family Dendrobatidae (“poison frogs”) Golden Poison Frog (terribilis)


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