it's about geese. las positas bio FOR LIFE!

1. Branta canadensis
Imma let you finish, but the Canadian
goose is the greatest waterfowl of all
time…

2. OF ALL TIME!
• That’s why it’s also one of the most abundant
species of waterfowl (Bellrose 1980).

3. This is what it looks like in case you
live under a rock. Picture courtesy of
wikipedia!

4. • Cons: Not very efficient at digesting plant
constituents, so it poops everywhere. All day,
everyday. They are annoyingly loud when
flying together, and if you try to approach one
they act like jerks and chase you off if you get
too close.
http://mstanphill.wordpress.com/2009/07/21/
great-work/ (6 Dec. 2011).

5. But none of that’s important. This
majestic creature is merely
misunderstood.
• Many time it’s aggressive behavior is because
a gander is defending its nest or territory.
Everyone likes defending cute
things – it’s science!
http://www.arthursclipart.org/birdsducks/duc
ks/page_01.htm

6. Anyways…

7. Migratory flight pattern!!!
http://blog.7geese.com/2011/07/08/why-did-wechose-7geese-for-our-product-name/ (6 Dec. 2011)

8. Terrestrial Travel Formations
• 2 patterns: v formation or line formation used.
7 instances of v, 4 instances of line.
• Obviously the aerodynamic benefits don’t
apply when grounded, however Konrad Lorenz
(1991) believed the v formation also allowed
better field of vision for each individual goose.
• Line of sight is important in gregarious species
like Canadian goose. Strength in numbers etc.

9. • V formation would appear to provide an
advantageous view as each goose can see
things from all angles and if the flock has to
take off at the same time they won’t hit each
other.
• Line formation would appear to be
disadvantageous, further testing would be
required though.

10. Up Next…
http://host.madison.com/wsj/news/loc
al/environment/article_564ce96a8a16-11df-bbbe-001cc4c03286.html (6
Dec. 2011).

11. http://lestamizcaran.deviantart.com/art/Storm
-Troopers-Assault-157853061
http://www.pazhs.com/gallery/hampi.htm

12. Can be quite aggressive and will
mob potential threats...

13. Vigilance
• Characteristic of animals whose behaviors
would obscure its ability to keep an eye on its
environment.
• Geese have a high metabolic rate to keep their
body temperature up. This allows them to
survive in extremely cold temperatures as low
as -40 degrees Celcius.

14. Well gee, guy. What’s this all mean?
• High metabolic rate -> Necessitates high food
intake + Herbivorous habits = Needs to
dedicate a lot of time to grazing for food.
• Head low makes it prone to predation. Sentry
goose prevents this.

15. 200-100m: The
whatever zone.
100-50m: The Wary zone.
50-20m:…

16. http://fistpumpsandbeyond.blogspot.com/2
0/12/danger-zone-play-list.html

17. • Short term flight is extremely energy efficient.
• Sentry goose has to balance dichotomy of
conserving group’s overall energy expenditure,
while making sure they survive major threats.
• Fight or flight responses would be wasteful,
mediums are found in it’s “wary” state.

18. The End….?

19. Yes, actually.