The results of University of Glasgow masters student (and former crees intern) laura Braunholtz's research on nocturnal bird communities in a regenerating tropical forest. This research was conducted at the Manu Learning Centre in 2013.

1. Nocturnal bird communities in a
regenerating tropical forest, SE Peru
Laura Braunholtz
Zoology Work Placement MSci
University of Glasgow
Photo: Marcus Brent-Smith

4. 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.

6. 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).

7. 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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Com
m
on
PotooG
reatPotoo
Long-tailed
Potoo
Short-tailed
N
ightjar
Ladder-tailed
N
ightjar
O
cellated
Poorw
illPauraque
A
m
azon
Pygm
y
O
w
l
FerruginousPygm
y
O
w
l
Taw
ny
Bellied
Screech
O
w
l
Verm
iculated
Screech
O
w
l
Band-bellied
O
w
l
Spectacled
O
w
l
M
ottled
O
w
l
Crested
O
w
l
Abundance
CCR
PCR
SLR