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BIO1022 - Animals that feed on plant fluid

Linda Lim, Janelle Munsamy, Mairead Judge & Melissa Le
by

Melissa Le

on 20 October 2015

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Transcript of BIO1022 - Animals that feed on plant fluid

Animals That Feed on Plant Fluid
Advantages
Nectar is a solution made up of ~80% of the sugars that the animals require such as fructose, sucrose and glucose.

Rich source of nutrients
· Easily ingested and
digested
· The sugar in the nectar
is rapidly digested to
help the animal (eg.
hummingbird) maintain
high metabolic rates.

http://hqworld.net/gallery/details.php?image_id=6409&sessionid=7ae409375ffdf1775656b4550a4b7965
Disadvantages
Nectar is often an incomplete source of nutrition, therefore fluid feeders need to look for other food sources.

· Low amounts of protein/amino acids and
vitamins/minerals/ electrolytes and salt.
· Excess of water
· Animals face a challenge when they fast (in
between meals or overnight/poor weather)

http://tobiasweberphotography.co.za/440240/blog
Linda Lim, Janelle Munsamy, Mairead Judge & Melissa Le
http://www.wisegeek.com/what-is-fluid-feeding.htm
Hummingbirds
http://www.zoo4you.co.uk/5-fun-animal-facts-week-4/
Diet: Flower nectar and tree sap

High breathing rate, body temperature and fast heart rate require large amounts of food with a high sugar content


Hummingbirds, aphids, spiders and leeches
Examples:
Aphids
http://www.naturespot.org.uk/species/rose-aphid
Found in groups on flowers and vegetables

Feed on the sap of plants by puncturing it and sucking it out
What are fluid feeders?

Also known as fluid feeder these are animals that feed on the fluids present in organisms to gain nutrients, in plant fluids this can take the form of sugar rich sap or nectar.
Leafhoppers
Honey-possum
http://www.wwf.org.au/our_work/saving_the_natural_world/australian_priority_places/southwest_australia/the_perth_metropolitan_area/perth_wildlife_capital_of_the_world/perth_wildlife_city_living_is_not_for_all/
http://naturalhistory.museumwales.ac.uk/sharpshooters/
Diet: plant sap from grass, shrubs or trees

Prominent piercing-sucking mouthparts
Australian marsupial; found in Western Australia

Diet: nectar

Have an elongated snout and tongue; helps to gather nectar
Key Adaptions
Higher concentrations of digestive enzymes
Hyposmotic urine
Puddling
Extended periods of deep sleep

http://www.leapsandbounds.in/uploads/2/4/0/3/24032356/8802057.jpg?884
Full transcript