Kill my babies, but let me eat meat!

Just a visual PS to the last post on energy flow through food chains.

Desk 1

Here’s the start of the game: there’s the pristine tropical island, with just a little corner of cultivation dedicated to growing enough plant food to sustain two people.

Desk 2

BUT…. they’ve decided they want to eat meat every day. Oh dear. The pristine wilderness is under threat!

Meanwhile, on vegetarian island…

Desk 3

…the population has doubled, but most of the island is still untouched.

Back on the isle of meat eaters, a doubling of the population has a more profound effect…

Desk 4

Animals at the top of the food chain are running out of space. The monkey eating eagles are endangered….

Veg-ville continues to cope reasonably well with population growth….

Desk 5

The population doubles again yet we’re still using less land than two people eating meat.

Compare this to the other island…

Desk 6

And here’s the really important question. Never mind the eagles, never mind the orang utans, never mind the vanished rainforest – what exactly are they going to do when the population increases again…?

As a sobering way to wrap up the topic, you could do worse than this…

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s