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Biodiversity & Classification of Life on Earth. Biology. Biodiversity: all different species on Earth. More than animals on Earth. Diversity on Earth. ~10 million species on Earth ~2 million are known to science. Identifying Unknown Species. Search rainforests, oceans…. 2009 species.
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Diversity on Earth • ~10 million species on Earth • ~2 million are known to science
2009 species • Rat eating pitcher plant (Philippines) • Translucent Dracula minnow (Myanmar)
2010 species • Purple Octopus (Canada) • Sneezing snub-nosed monkey (Myanmar)
2011 species • Eternal light mushroom (Brazil) • Darwin’s bark spider (Madagascar)
2012 species • Tiny Chameleon: Brookesiamicra(Madagascar) • Tiny Frog: Paedophryne amanuensis (New Guinea)
2013 species • Olinguito: Eugenia petrikensis(Madagascar) • Glowing Cockroach: Bassaricyonneblina(Brazil)
2014 species • Praying Mantis:Liturgusaalgoreiin Peru
2015 species • Marine pillbug
2016 species • Klingon Newt
2017 species • Skywalker Hoolock Gibbon (Hoolocktianxing)
Taxonomist • Identifies and names organisms The Louisiana Pancake Batfish!
Classification • Grouping species based upon similarities • Each species receives a Latin name DendrobatespumilioDendrobatesauratusDendrobatesazureus DendrobatesleucomelasDendrobatestinctorius
You are now a field taxonomist • On your first day you see this bird! • What Joy!!! • Now what bird is this?
Dichotomous Keys • An easy way to sort information • Uses a series of yes or no questions to get to a single description that applies to only one item
Partial Dichotomous Key for Sparrows • 1a. Small bird with brown and gray feathers……………………………....…go to 2 • 1b. Small bird with dark gray and white feathers…….…………………… go to 5 • 2a. Bird with solid red cap…………………………………………………….…………..……..3 • 2b. Bird with white and black striped cap……………………………..…………………4 • 3a. Bird with one white stripe on above eye………………….chipping sparrow • 3b. Bird with gray chest……………………………………………..………….tree sparrow • 4a. Bird with yellow spot above eye…….……….………white-throated sparrow • 4b. Bird with no yellow spot above eye………………..white-crowned sparrow • 5a. Bird with pink bill……………. Dark-eyed Junco • 5b. Bird with white wings………………………go to 6
Following a dichotomous key is similar to playing a game of GUESS WHO? • “is your person a boy?”
Hints for Using D.K. • Always, Always, Always start at the beginning • Always read both choices • Be sure you understand the meaning of terms involved. • Do not guess. • When measurements are given, use a calibrated scale. • Do not guess. • Do not accept your answer as absolutely reliable. Check a description of the organism to see if it agrees with the unknown specimen.