tropical frogs 3-25-08
DESCRIPTION
TROPICAL FROGS 3-25-08. Sounds of the Tropics. SIZE: THE RANGE IS HUGE. Bufo marinus from Surinam. Bufo metamorph. PAROTOID GLANDS ON TOADS PRODUCE TOXIC ALKALOIDS. - PowerPoint PPT PresentationTRANSCRIPT
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TROPICAL FROGS 3-25-08
Sounds of the Tropics
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SIZE: THE RANGE IS HUGE
Bufo metamorph.
Bufo marinus from Surinam
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PAROTOID GLANDS ON TOADS PRODUCE TOXIC ALKALOIDS
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Taken in large amounts, the alkaloids are potentially deadly. Taken in small amounts, they may be hallucigenic (and unlawful). My dog, Rex, bit toads several nights in a row. Maybe he liked it –
swollen eyes and all!
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TOADS DON’T CAUSE WARTS
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VOCAL POUCHES ARE SHAPED DIFFERENTLY IN DIFFERENT SPECIES
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SOME GROUPS HAVE ONE VOCAL POUCH, AND OTHERS HAVE TWO
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A Very Loud Chorus of Frogs.
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Bombina bombina and its unken reflex
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UNKEN REFLEX: A DRAB COLORED ANIMAL USES BRIGHT,APOSEMATIC COLORS TO STARTLE A PREDATOR.
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Pipa pipa is a strange, totally aquatic frog.
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Pseudis paradoxus, is so named because its tadpole is 6” long and it metamorphoses to a 2” adult.
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Rhinophrynus dorsalis, the Mexican Burrowing Frog, is surreal in appearance.
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Osteocephalus taurinus, Tambopata, Perú. From the shower!
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HYLID TOEPADS HAVE MULTIPLE SURFACES AND A CENTRAL MUCOUS GLAND
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Hyla marmoratus, Venezuela
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Hyla boans, one of the largest species of Hyla (this one from Trinidad).
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Hyla geographica (l) & Yellow Cricket Treefrog, H. microcephala (r)
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Hour Glass Treefrog, Hyla ebraccata
By David Bull
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Hyla ebraccata and eggs – Cockscomb.
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Yellow Treefrog, Hyla microcephala in calling posture Cockscomb
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Hyla parviceps, Tambopata, Perú.
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Hyla rhodopepla, Tambopata, Perú.
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Red-footed Treefrog, Hyla loquax – note the yellow body and the red along the margins of the thighs
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Stauffer’s Treefrog, Scinax stoufferi - Belize
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Mexican Treefrog, Smilisca baudini
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Agalychnis annae (l) & Agalychnis craspedopus (r)
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Agalychnis calcarifer
By Bill Lamar
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Red-eyed Treefrog, Agalychnis callidryas
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Red-eyed Treefrogs rock!
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A three-some – hanging by one toe (photo by Myra Hughey, 02)
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Red-eyed Treefrogs lay their eggs on the undersides of broad leaves over water.
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Melissa Kaintz & Myra Hughy doing their “animal observations” at the Red-eyed Treefrog pond, Cockscomb.
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Cat-eyed Snakes love to eat Red-eyed Frog Eggs!
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A Variety of Phyllomedusas
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Phyllomedusa camba, Tambopata, Perú.
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Phyllomedusa palliata, Tambopata, Perú.
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Phyllomedusa tomopterna, Tambopata, Perú.
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Phyllomedusa eggs over a pond, Tambopata, Perú.
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Orange-legged Phyllomedusa, applying wax to prevent desiccation.
Photos by Harvey Lilywhite, Natural History Magazine, January, 2002.
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Phyllomedusa bicolor, a very large Amazonian monkey frog whose skin secretions are used by the natives to heighten their hearing during hunting trips – they snort the scraped and dried secretions from the skin.
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Triprion spatulatus - its flat nose is an adaptation for living in bromeliads. When the frog is sitting in the water among the leaves, its protruding nose looks like a leaf.
Such water holding plants are called phytotelms.
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Casque-headed Treefrog, Triprion petasatus - Tikal
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Milky Treefrog, Phrynohyas venulosa & its Gook.
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Marsupial Frog, Gastrotheca marsupialis
By David Bull
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Centrolenid Glass Frogs are Cool!
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Centrolenid Glass Frogs are virtually transparent.
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Couch’s Spadefoot Toad, Scaphiopus couchi
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Bullfrog, Rana catesbeiana
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What happened here?
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Harlequin Frog, Atelopus varius
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Golden Toad, Bufo periglenes
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Bufo arenarum (Argentina) with three forelimbs - 1978.
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Marine Toad, Bufo marinus
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Bufo marinus can get really gross ticks.
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Bufo marinus tadpoles & Mignon Faget drinking Chan.
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Bufo valliceps, a male from Tikal
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Campbell’s Toad, Bufo campbelli, San Miguel.
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Bufo typhonius from the Amazon – Wow!
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Rana vallianti, a common pond frog in Belize.
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Eleutherodactylus preposypharus, from the San Miguel cave.
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Eleutherodactylus rugulosus, a forest frog from Cockscomb
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The White-lipped Frog, Leptodactylus labialis. This species makes its whistling call from under water.
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The Belizean tink frog, Eleutherodactylus leprus.
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Eleuthrodactylus species
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Túngara Frog, Physalaemus pustulosus – “ phew” sound emitted as it fills with air (note the floating foam nest of this species, formed when the male kicks about in the jelly of the freshly laid eggs).
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Túngara Frog, Physalaemus pustulosus – “chuck, chuck, chuck” sound emitted as it expells its air. This is the portion of the call that attracts females. Unfortunately, it is also the portion of the call that attracts Fish Eating Bats.
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Ceratophrys – a very predatory genus.
By David Bull
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Where’s Waldo? Hint: it’s in hunting mode.
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A cryptic Ceratophrys cornuta, on the forest floor in Tambopata, Perú.
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Telmatobius sp., Argentina
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Pleurodema brachyops Predator Defense
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Mannophryne trinitatis with tadpoles. This is a non-toxic genus of the Dendrobatidae.
By John Moyle
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Green and Black Poison Frog, Dendrobates auratus
By David Bull
From the American Scientist.
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Strawberry Poison Frog, Dendrobates pumilio. If I do what this frog does weekly, I would have to climb straight up a tree trunk that is 15,200 ft high – each week.
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Blue Poison Frog, Dendrobates azureus
By David Bull
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Harlequin Poison Frog, Dendrobates histrionicus variation
By David Bull
All not labeled from annual report of the American Museum of Natural History.
By David Bull
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Dendrobatid eggs
By David Bull
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Lehmann’s Poison Frog, Dendrobates lehmanni
Both by David Bull
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Yellow-banded Poison Frog, Dendrobates leucomelas
By David Bull
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Red-backed Poison Frog, Dendrobates reticulatus
By David Bull
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Dyeing Poison Frogs (or, LSU Poison Frogs), Dendrobates tinctorius
Both by David Bull
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Silverstone’s Poison Frog, Epipedobates silverstonei
By David Bull
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Phantasmal Poison Frog, Epipedibates tricolor
By David Bull
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Kokoe Poison Frog, Phyllobates aurotaenia – one of the three species of frogs known to be dangerous to humans.
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The strongest animal toxin known to humans – Golden Poison Frog, Phyllobates terribilis
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Elegant Narrowmouth Toad, Gastrophryne elegans
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Sheep Frog, Hypopachus variolosus
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Hamptophryne boliviana, Tambopata, Perú.
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What Frog?!?
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The Inn.