|Schedule||Self-Quizzes||Natural History Event||Species List|
1. To obtain experience in natural history field research
2. To identify wildlflower and pollinator species occuring here.
3. To better understand pollination systems.
Plants are rooted in place.
This poses a problem when plants want to mate -- how is the sperm going to get
transferred to the egg? Plants package their sperm in specially-designed capsules
(called pollen grains) and then use pollen vectors -- wind, water,
and animals -- to propel the pollen from one plant's anthers (where pollen is
produced) to another plant's stigma (which receives the pollen). This process
of transferring pollen from anther to stigma is called pollination. Plants
have evolved specialized adaptations to help ensure their pollen vector's interest
in and success at picking up, transporting, and leaving off the pollen at the
appropriate place (e.g. providing food or housing materials for their animal
vectors and making aerodynamic or sticky pollen). Animals, in turn, have evolved
special adaptations to increase their effectiveness at acquiring the goodies
provided by the plants (e.g. wings, long tongues, scrapers, and holding devices).
A variety of pollination systems have resulted from the interactions
between plants and their corresponding pollen vectors. Recommended Reading:
The Forgotten Pollinators by Stevem Buchmann and Gary Nabhan (1996).
Also see textbook pp. 144-146. This lab was adapted from Tyrrell, L. 1989. How
is this flower pollinated? Journal of College Science Teaching 18:378-383.
|Wind (anemophily)||Birds (ornithophily)||Moths (phalaenophily & sphingophily)||Bees (melittophily)||Bee-like Flies (myophily)|
|Water (hydrophily)||Bats (chiropterophily)||Butterflies (psychophily)||Beetles (cantharophily)||Carrion & Dung Flies (sapromyophily)|
|POLLINATION SYSTEM CODES|
Flower Descriptions Used:
|radial, not tubular, yellow, fragrant|
Proposed Pollination System:
|bees and possibly butterflies|
Possible Pollen Vectors Observed:
|I saw one bee visit flower|
Note: You must give all 4 flower descriptions used (symmetry, shape, color, and odor).
Note also that for flower color, you only have a few choices and you must use one of those choices (for example, if your flower is orange, you have to choose either yellow or red).
Note that being radial removes nothing. Not tubular crosses out MO and BA and puts parentheses around BU and BI.
Yellow crosses out WI, BT, F-M, F-S, MO, BA.
Fragrant crosses out WI and F-S and also now crosses out BI which used to be in parentheses.
So you are left with bees (not crossed out) and possibly (in parentheses) butterflies.
Note any insects, etc. that visited your flower species under possible pollen vectors observed.
these data on the Pollination System Data Sheet (html
/ word) and
Jump to Lab Manual, Polyclave Key or Data Sheet (html / word)