Fw: Avian pollinators - Humming Birds

Pamela Harlow pamela@polson.com
Mon, 04 Mar 2013 09:50:09 PST

Although no hummingbirds currently inhabit the Old World, the oldest known
hummingbird fossil was found in Germany.  Many South African plants attract
hummingbirds, and it is possible that they evolved with hummingbirds, now
vanished.  Similarly, American pronghorns (similar to antelope) run much
faster than any extant predator, but until 10 or 11,000 years ago, cheetahs
chased them across the North American landscape.

-----Original Message-----
From: pbs-bounces@lists.ibiblio.org [mailto:pbs-bounces@lists.ibiblio.org]
On Behalf Of iain@auchgourishbotanicgarden.org
Sent: Sunday, March 03, 2013 1:25 PM
To: pbs@lists.ibiblio.org
Subject: [pbs] Fw: Avian pollinators - Humming Birds

It would be a great help if anyone on PBS could advise me on any of the
following please.

(1) what the temperature regimen is, if known, that initiates pollinating
activity amongst the Nth. Am. Humming Bird species in relation to the genus
Lilium ?;
(2) do all Humming Bird species function seasonally or selectively as
pollinators of native lilies or in conjungtion with other flowering plants?;
(3) are there particular Humming Bird species which pollinate lilies, or do
they all do so?;
(3) have any lily species been noted as preferentially visited, or do they
take what they need any old place ?;
(5) are all, or any Humming Bird species migratory ?  

I apologise for my total dumb ignorance about your fascinating wee birdies
but I am working on the chapter on pollination + pollen dispersal at present
and have become painfully aware how little information is available on this
side of our beautiful Blue Planet.

Sadly there are no Palaearctic Humming Bird species although we have several
remarkable day time / evening flying analogs, which are for example the
Humming Bird Hawkmoths  -  in the genus Macroglossum (Macroglossum
stellatarum) and also the Narrowborder Bee Hawkmoth  - in the genus Hemaris
(Hemaris tityus).

Many thanks + fingers crossed,   Iain

More information about the pbs mailing list