vertebrate taxonomy. phylum chordata several classes of fish –jawless fishes –sharks and rays...
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![Page 1: Vertebrate Taxonomy. Phylum Chordata Several classes of fish –Jawless fishes –Sharks and rays –Bony fish Class Amphibia (frogs, toads, salamanders) Class](https://reader036.vdocuments.site/reader036/viewer/2022081504/56649d795503460f94a5cf7e/html5/thumbnails/1.jpg)
Vertebrate Taxonomy
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Phylum Chordata
• Several classes of fish– Jawless fishes – Sharks and rays– Bony fish
• Class Amphibia (frogs, toads, salamanders) • Class Testudines (turtles, tortoises) • Class Lepidosauromorpha (snakes, lizards) • Class Crocodilia (alligators, crocodiles) • Class Aves (birds) • Class Mammalia (mammals)
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Class Amphibia
• Two stage life cycle– Aquatic larvae– Terrestrial adult
• Respiratory structures– Gills (larvae)– Lungs (adult)– Skin
• Mucous and poison skin glands
• Three-chambered heart• Ectothermic• Egg-layers
– Must lay eggs in or near water
• Major groups– Gymnophiona
• Caecilians– Caudata
• Salamanders– Anura
• Frogs and toads
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Reptiles
• Shelled amniotic egg• Skin hard and brittle• Many have bony
plates under scales• Three-chambered
heart• Ectothermic
• Major groups– Turtles– Crocodilians– Tuatara– Lizards– Snakes
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Birds
• Feathers– Temperature regulation– Flight
• Bill toothless mandibles covered with horny sheath
• Endothermic• Four-chambered heart• Eggs with great parental
investment
• Adaptations for flight– Feathers– Fused bones of pelvis, feet,
hands and head– Furcula– Hollow bones– Highly efficient respiratory
and circulatory systems– Musculature of chest
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Class Aves
• Many orders of birds– Columbiformes: doves and
pigeons– Falconiformes: diurnal birds
of prey– Apodiformes: hummingbirds– Gruiformes: cranes and rails– Piciformes: woodpeckers– Strigiformes: owls– Anseriformes: ducks and
geese– Galliformes: chickens and
turkeys– Passeriformes: perching birds
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Mammals
• Hair• Endothermic• Four-chambered
heart• Large brain• Dentition
– Teeth specialized– Incisors, canines,
premolars, molars
• Reproduction– Mammary glands– Most mammmals
viviparous– Development of young
within the mother• Pouch (Metatherians)• Placenta (Eutherians)
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Class Mammalia
• Many orders of mammals– Rodentia: rodents– Chiroptera: bats– Insectivora: shrews and
moles– Carnivora: cats, dogs,
bears, weasels, raccoons– Lagomorpha: rabbits– Artiodactyla: ungulates– Primates– Didelphimorphia:
American marsupials
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Herp Traps
• Pitfall traps– Useful for catching
terrestrial arthropods and small mammals
– Usually include drift fence to increase capture rate
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Mist Nets
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Mammal Traps
Sherman trapsSherman traps
Leg-hold trapsLeg-hold traps
Tomahawk trapsTomahawk traps
““Noose” trapsNoose” traps
Snap trapsSnap traps
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Noninvasive Techniques
Bat DetectorsBat Detectors
Tracking StationsTracking Stations
Scent StationsScent Stations
ObservationObservationTrailmaster CamerasTrailmaster Cameras
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Unknown songbird
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Unknown duck
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Unknown small mammal skin
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Unknown large mammal skin and skull
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Unknown Herp #1
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Unknown Herp #2
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Unknown Herp #3