Additonal For Final Exam Flashcards
What diseases do flies vector?
Malaria
Yellow fever
River blindness
Sleeping sickness
What diseases do lice vector?
Typhus
Relapsing fever
Trench fever
What diseases do fleas vector?
Plague
Carnivorous plants- why do plants eat insects?
Nutrition
Carnivorous plants-where would you expect to find them?
Poor soils
Why might similar looking carnivorous plants be distantly related?
They evolved at least six different times
Venus fly trap
Native range-100 miles of Wilmington NC Snaps shut in 1/10 of a second Digests insects in the leaf No muscles or nerves Leaf releases digestive juices
Bladderwort
Eat Arthropods, tadpoles, fish
Many free float in water
More than 200 species around the world
Pitcher plants
100’s of species worldwide
Prey fall into mixture of water and digestive chemicals
Pitcher is modified leaf
Downward pointing hairs and slippery surfaces cause insect to fall inside
What are the pitcher plant’s attractants?
Color and odor
Mutualistic insects of pitcher plants
Feed on trapped insects
Excrete “fertilizer”
Other Arthropods living in pitcher plant are spiders and some Mosquitos
Butterwort
Secretions on leaves
-one is mostly water to attack thirsty insects
-the other is sticky
-increases with insect movement
-final one is digestive
Widely distributed in northern hemisphere
Some are epiphytes (like Spanish moss)
Sundew plants
150+ on every continent
Gel on tentacles is sticky and attractive
Some cannot bend leaves around prey
Some can bend leaves in tenths of a second
Rain drops will not make the leaves contract
Obtaining carnivorous plants
NEVER collect from wild
Many are endangered
Pesticides are…
Broad term including
Herbicides
Insecticides
Fungicides
