Zoology's topics - tribe.net

question for the tribe

vba1 — Thu, 29 Nov 2007 20:47:08 GMT

can anyone verify the following?

i once heard a theory posed about the extinction of Passenger pigeons (besides their wanton slaughter and habitat destruction). the theory goes something like this:

after many of the birds had been killed their population reached and dropped below a lower threshold at which the birds could not get 'excited' enough for the hormone spike needed for the birds to reproduce. in other words, the flocks had to be a certain minimum size in order for them to produce the necessary sex hormones for mating and reproduction. this is thought by some to have been the nail in their coffin after all the slaughtering, becuase even though there were a handful left (say 10000), this was enough of a bottle neck for reproductive success reasons for all of them to perish for good.

if anyone can verify this theory with links, author names, book titles where i could find documentation i would reaaaaallllly appreciate it.

thanks in advance.

posted in Zoology - 1 reply

shameless plug

vba1 — Wed, 07 Nov 2007 18:03:47 GMT

...for my wormworld tribe. plz make a request to join, i won't say no, but only if you promise me you love worms. :)

posted in Zoology - 0 replies

Biological Limiting Factors

pantsy — Mon, 19 Jul 2004 09:26:57 GMT

y'all know what they are but i'll briefly summarize:

factor which limits the population of a particular group. example: deer population gets too big. deer start starving for lack of food. deer population goes down. (starvation being the biological limiting factor).

OK! that being said, what do y'all think are *our* biological limiting factors? it's a bit of an ominous question (6 billion and growing).

posted in Zoology - 10 replies

What kind of tree forg is this?

Darkdove — Sat, 20 Oct 2007 02:11:35 GMT

Can anyone Identify this tree frog?
I would greatly appreciate it.
Thanks

posted in Zoology - 4 replies

crickets vs. humans

vba1 — Tue, 26 Dec 2006 18:30:53 GMT

this article is cool, but such a tease! they don't discuss the outcome of the game at all.

http://www.livescience.com/scienceoffiction/060707_pacman_insects.html

hi, i'm virg btw.

posted in Zoology - 1 reply

wow

britwell — Wed, 10 Mar 2004 21:47:00 GMT

5 members, welcome all.

What is everyone's connection to Zoology?

posted in Zoology - 14 replies

Tiger

britwell — Tue, 12 Oct 2004 17:14:54 GMT

Uploaded some pics of our new tiger cubs, here at the Woodland Park Zoo in Seattle.

posted in Zoology - 9 replies

scary as fuck

pantsy — Wed, 17 Nov 2004 20:54:39 GMT

http://story.news.yahoo.com/news?tmpl=story&ncid=1756&e=1&u=/041115/481/cpn80111152032

did you all see this in yahoo's "most emailed photos" section? my god that's some wicked shit

posted in Zoology - 1 reply

New Member

Joe — Fri, 19 Mar 2004 16:57:18 GMT

Hey everyone. Im glad this tribe got started I have one called marine life. I am very interested in all kinds of animals. I look forward to learning new things here.

posted in Zoology - 0 replies