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Island Biogeography

Part I, island biogeography in a World Regional context...click here to watch part II, why island biogeography matters in places that aren't on islands.  All links archived at: http://geographyeducation.org/2013/12/06/island-biogeography/


Via Seth Dixon
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Christian Allié's curator insight, December 7, 2013 8:17 AM

........""....

... Part I, island biogeography in a World Regional context..


....Part II, why island biogeography matters in places that aren't on islands.

Al Picozzi's curator insight, December 7, 2013 10:56 AM

I really could see the idea of island biogeography when looking at islands and the ocean and how they species could develop that way.  Until I saw this video I do not think I could have made that cross over to continents.  Now I do see it.  If we build something across an open plain it will effect how species roam the area.  I remeber seeing pictures of the Alaskan pipeline raised in certain area and could not until now figure out why.  Now I know it was done, at least partly for, environmental reasons. So animals could still travel under it in order to move about.  If not Alaska would have been cut in half and prevented the animals form moving across the pipeline.  So as nature effected the developement of species with the rising and falling of ocean levels and islands, human effect the developmentof species with roads, farms and cities to name just a few.

Maegan Connor's curator insight, December 8, 2013 11:35 AM

I find the island biogeography to be really awesome because it's as if the small South Pacific islands are a completely separate world in terms of the creatures that live in the isolated environments.  Growing up, the idea of the Komodo Dragon was terrifying and amazing because lizards are just supposed to be little, ugly reptiles and the existence of one large enough to eat us and named after the beasts in fairytales was fascinating.  In Rhode Island, there isn't much in terms of exotic wildlife but even the species throughtout the rest of the U.S. don't completely compare to the rare creatures on the islands that have adapted to the conditions of living on small pieces of land.

The land bridge is something I don't recall ever hearing of before and the way that it influences the animals' evolution and expansion is fascinating.  I think of it in terms of humans because when immigrants cross seas to go to different countries, they are forced to adapt and they're families evolve differently than they would have in their homeland. The land bridge provided similar challenges for the marsupials and reptiles that are/were located on the secluded islands.

Once again, I also find myself extremely annoyed with man's habit of killing off rare species for the selfish reasons of owning land and not being hunted by the animals whose land they've encroached upon.

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Boundary conditions

Boundary conditions | Human Geography Too | Scoop.it
PULL a spring, let it go, and it will snap back into shape. Pull it further and yet further and it will go on springing back until, quite suddenly, it won't....

Via Joel Barker, Seth Dixon
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Joel Barker's curator insight, February 10, 2013 11:56 AM

A useful discussion on limits of the planet

Seth Dixon's curator insight, February 11, 2013 8:23 AM

This is an interesting article discussing the limits that the Earth's physical systems have and the importance not exceeding any tipping point that could destabilize the planet if we "overstrech the springs."

Angus Henderson's curator insight, February 11, 2013 11:49 AM

An interesting counter-balance to the work of the Planetary Boundaries group.