EEB216 final review.doc

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Published on 13 Apr 2012
School
UTSG
Department
Ecology & Evolutionary Biology
Course
EEB202H1
Professor
Page:
of 9
CHAPTER ONE.
Broad definition of Marine Mammals: _______________ mammals that spend part or ____ of its life in ____________ or
__________ water
There are approximately ____________ living species of marine mammals.
a. ____ pinniped
b. ____ cetecean
c. ____ sirenian
d. ____ sea otter
e. ____ polar bear
General adaptations that make marine mammals different from terrestrial mammals include:
a.
b.
c.
d.
CHAPTER TWO.
What is taxonomy?
The ___________________, _____________________ and _______________ of the various species.
Why study taxonomy?
Taxonomy helps _______________ new species or ____________________ between existing ones, with the use of
______ studies to provide _________________ ___________________ for taxonomic identification.
Why study classification?
The _________________________ of the __________(species) into a type of ______________ such that each rank in-
cludes all of the other ranks beneath it.
Classification can be divided into 2 types:
1. ____________________ classification: overall similarity of the taxa
2. ____________________ classification: based on evolutionary history or pattern of descent
Another method used to classify animals is called _____________________, which is the study of biological diversity
with an emphasis on the _____________________ of phylogeny which allows for interpreting biological diversity.
This study examines…
1.
2.
3.
4.
Classification of Marine Mammals
______________ __________ ____________ ______________ _____________ __________
Phylum ______________: includes mammals, birds, fish, amphibians and reptiles
They are characterized by the presence of a ______________ or __________________ which is a supportive bar
on the dorsal of an animal.
Class ________________________: contains ______ orders made up of over ________ species
Order 1. _____________________ consists of the following families:
Mustelidae (_______________________)
_____ genera and _______ species
Odobenidae (____________________)
Otariidae (____________________)
_____ genera and _______ species
Phocidae (_______________________)
_____ genera and _______ species
Ursidae (______________________________)
Order 2. _________________________ consists of ____ sub-orders
a. _________________________ (____________ whales), divided into 4 families
Balaenopteridae (____________________________)
_____ genera and _______ species
Balaenidae (_________________________________)
_____ genera and _______ species
Neobalaenidae (_____________________________________________)
Eschrichtiidae (___________________________________)
b. __________________________, (___________________ whales) divided into approx. 10 families:
Delphinidae (____________________)
____ - ____ genera and ____ - ____ species
Monodontidae (________________/________________)
___ species
Phocoenidae (____________________)
Physeteridae (__________________________)
_____ genera and _______ species
Order 3. __________________, consists of 2 families
Dugongidae (_____________________)
_____ species
Trichechidae (_____________________)
_____ genera and _______ species
General Classification of Marine Mammals
Odobenidae (Walrus):
- when walking on land, the walrus can ____________ its hind flippers underneath its body
- in water, both hind and fore flippers are used for ___________________________
- the live on or near __________ ice throughout the _________ and _________________ and in summer on beaches
Phocidae (Earless seals)
- cannot rotate hind flippers and therefore on land they _______ along the surface with fore flippers and ________ their
hind flippers behind them
- also use fore flippers in water for ____________________ and there is _____________ between the toes in hind flippers
(ex. _____________________, ________________, __________ and ____________seals)
Trichechidae (Manatee)
3 species: _______________________________ ( west indian), ___________________________ (amazonian),
___________________________ (west african) - all feed on vegetation from ____________ to ____________ of water
Differences between Manatees and Dugonidae (Dugongs)
- dugong has __-shaped tail with ____ flukes while manatee has a _____________ caudal fin
- Dugongs eat only at the ___________ of the water while manatees eat _________________ in the water
sub-order Odontoceti (toothed whales)
-mandibles: shaped into a broad shallow pan which is filled with fat
Physteridae (1 species = Sperm whale)
- males growing to ___m and weighing ____ tons
- massive head (___-_____% of body length)
- __________________ organ which is spongy tissue filled with _____________________ oil and used in echolocation