Shared Flashcard Set

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Ecology
Past exam questions
13
Biology
Undergraduate 1
06/21/2014

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Cards

Term
In estuaries, tissue produced by vascular plants (i.e. not algae) is typically eaten by animals:
Definition
As detritus following microbial colonisation.
Term
Both pioneer and emergent tree species are light demanding but differ in a key aspect of their life history. This is because emergent species are typically
Definition
much longer-lived
Term
A guild is a grouping of species with similar?
Definition
Niches
Term
The kauri cup podsol is an area of?
Definition
Depleted soil directly beneath the tree
Term
The organisms that occur in a mutualistic relationship associated with the roots of many tree species are?
Definition
Fungi
Term
What is a self introduced bird into New Zealand?
Definition
Silvereye
Term
Which of the following is a density dependent factor, in the context of population regulation?
Definition
increased levels of stress
Term
A “K-selected” (equilibrium) species has a life history characterised by?
Definition
few large offspring
Term
Stoats are an especially serious threat to yellowheads (mohua) because?
Definition
Yellowheads are hole-nesting birds
Term
Which of the following New Zealand plants is most likely to become locally extinct through selective browsing of its foliage by brushtail possums?
Definition
mistletoe (Peraxilla spp.)
Term
Large carnivores are naturally rare because of:
Definition
progressive loss of energy between trophic levels
Term
An organism which is both a primary and a secondary consumer is:
Definition
an omnivore
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