1 / 30

Taxonomy

Taxonomy. “The beginning of wisdom is to call things by their right name.” K’ung Fu Tzu (Confucius). Taxonomy. 1.5 million named species 2-100 undiscovered Taxonomy is the science of classifying organisms Hierararchical system Categorizes organisms by biological type Genus & species

andrew
Download Presentation

Taxonomy

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Taxonomy

  2. “The beginning of wisdom is to call things by their right name.” K’ung Fu Tzu (Confucius)

  3. Taxonomy • 1.5 million named species • 2-100 undiscovered • Taxonomy is the science of classifying organisms • Hierararchical system • Categorizes organisms by biological type • Genus & species • Reflects evolutionary history • Systematically groups similar organisms together & assigns each a name

  4. Carolus Linnaeus Grouped species based on shared characteristics Developed binomial nomenclature system Wrote Systema Naturae, 1735 Taxonomy based on 3 kingdom system Animal, Plant, Mineral Father of Taxonomy 1707-1778

  5. Scientific Classification • Scientific classification organized into groups called taxa (taxon sing.) • Similarity among organisms in the same taxon is based on shared evolutionary descent from nearest common ancestor

  6. Taxonomic Ranks

  7. Every Single Critter!!

  8. Acceptance of Darwin’s theory of common descentled to tree organization/ representation Beginnings of realization that taxonomical system represented evolutionary history of life on earth Taxonomy Organizes Life on Earth

  9. Old Classification System

  10. Go Woese!!

  11. Carl Woese • 1990 • Use of molecular science • Comparing nucleic acids (ribosomal RNA) • 3 domain system

  12. Six “Kingdoms”

  13. Binomial Nomenclature • Developed by Carolus Linnaeus • Latin or Greek • Critters have scientific name & common name Why????

  14. American Kestrel or Sparrow Hawk Falco tinnunculus

  15. Mountain Lion • Cougar • Puma • Mountain cat • Catamount • Panther

  16. Rules to Nomenclature • Written in italics or underlined • Derived from latin or greek • First word Capitalized Genus • Aka Generic name • Ex. Canis • Second word lowercase species • Specific descriptor • Ex. domesticus

  17. Subspecies • Trinomial nomenclature • Distinguishes differences in populations that may have regional differences • Results from isolation, geographical distribution

  18. Heloderma suspectum suspectum Reticulated Gila Monster

  19. Heloderma suspectum cinctum Banded Gila Monster

  20. Unique characteristics of each species can be used to identify them

  21. Dichotomous Keys • Written series of choices that leads to the name of an organism • Scientist use to identify unknown organisms • Dichotomous • Greek “divided in two parts”

  22. Unknown Species

  23. Dichotomous Key

  24. How’d Ya Do?? • A. Deerus magnus • B. Deerus pestis • C. Deerus octagis • D. Deerus purplinis • E. Deerus deafus • F. Deerus humpis

  25. You Can Infer Evolutionary Relationships

More Related