Biogeography Crossword

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Across
  1. 5. Described cycles that change earth’s orbit, tilt and wobbling
  2. 9. Tendency of Earth's biota to be organized into distinct, geographically bounded regions (provinces) characterized by unique species assemblages and high levels of endemism
  3. 11. Large ice sheet that cover most of Canada and the Northern United States 20000 years ago
  4. 12. Tree genus that has a southern distribution, New Guinea, New Caledonia, Australia, New Zealand, Antarctica and South America
  5. 16. Integration of population genetics, phylogenetics, and historical geography to map genetic variations over space and time
  6. 18. This bird cannot carry a 1-pound coconut to Mercia
  7. 22. Movement of individuals, propagules (seeds, spores), or populations away from their birth site or origin to new locations
  8. 27. Index fossil found in chalk
  9. 28. German geographer, one oceanic current named after him flows along the western coast of South America
  10. 29. Death of a taxon
  11. 30. local variety of a species whose appearance, behavior, and structural habitat (niche) are shaped by its environment
  12. 31. Endemic bird to South America that has claws in their wings
  13. 32. The spatial spread of organisms from a point of origin to new areas, representing a key mechanism for range expansion. It is a gradual, continuous dispersal process where a population expands outward from a core area into adjacent, unoccupied habitats, different from "jump dispersal," which involves long-distance
Down
  1. 1. is the point in a planet's orbit when it is farthest from the sun
  2. 2. Biological classification method that reconstructs evolutionary relationships (phylogeny) by grouping organisms into clades based on shared derived characteristics (synapomorphies)
  3. 3. The principal natural taxonomic unit, ranking below a genus
  4. 4. Preserved remains, impression, or trace of any once-living organism from a past geological age
  5. 6. Indigenous, native
  6. 7. This term is used to describe a mechanism of evolution and movements of continents
  7. 8. massive, slow-moving rivers of ice and compressed snow that form on land over centuries
  8. 10. geological epoch that lasted from around 2.58 million to 11,700 years ago
  9. 13. When life nearly died
  10. 14. Two or more lineages originate from a common ancestor.
  11. 15. a unique biogeographical transition zone in central Indonesia, separated from Asian and Australian continental shelves by deep-water strait
  12. 17. the geographical separation of a population into isolated subpopulations by new physical barriers
  13. 19. distinctive, derived trait that is unique to a single terminal taxon not very useful to build trees
  14. 20. equal day and night lengths
  15. 21. Hypothetical protoplanet that collided with the ancestral earth and might have formed the moon
  16. 23. Type of zone frequently found in the pacific ring of fire
  17. 24. the movement of people or animals from one place of residence or habitat to another, often over long distances
  18. 25. Informal nickname of the person that proposed evolutionary theory
  19. 26. words in different languages related by a common ancestor, often sharing similar spellings