nocturnal bird communities in a regenerating tropical forest in se peru
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Nocturnal bird communities in a
regenerating tropical forest, SE Peru
Laura Braunholtz
Zoology Work Placement MSci
University of Glasgow
Photo: Marcus Brent-Smith
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Photo: Marcus Brent-Smith
Aim:
Investigate how different levels of human disturbance has
affected the nocturnal bird community of the MLC reserve.
Hypotheses:
H1: That time of survey would affect the number of
nocturnal bird individuals detected.
H2: That the forest with a history of higher human
disturbance would have a lower diversity and abundance of
nocturnal birds.
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H1: That time of survey would
affect the number of individuals
detected.
Fig. 1: Comparison of average bird abundance for AM and PM transects. Each
data point (N=11) is the average bird abundance (birds per km trail surveyed) for
each trail (p=0.23).
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H2: That the forest type with a history
of higher human disturbance (CCR)
would have a lower diversity and
abundance of nocturnal birds.
Fig. 1: Average number of birds encountered per km.
Fig. 2: Sample-based rarefaction curves for number of species estimated
to be encountered with the number of individuals sampled for the three
forest types.
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mon
Pot
oo
Gre
at P
otoo
Long-
taile
d Pot
oo
Short-
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d N
ight
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Ladde
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CCR
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