184 Monitoring Threatened Species and Ecological Communities
0
0.2
0.4
0.6
0.8
1
197419761978198019821984198619881990199219941996199820002002200420062008201020122014
Proporon of maximum recor
ded
abundanc
e B. penicillata
I. obesulus
Fox bait frequency and extent from 1977 Foxbaing from 1997 quarterly, broadscale
Perup monitoring 1974–1990, 1–2 sites
Kingston monitoring 1994–2014 , 2 transects
Perup monitoring 1998–2014, 4–9 sites
Fofrom 2010 xbaing
monthly inPerup core
B.pen.
restock at 1 site B.pen.
restock
and
monthly fox baing at 2 site
s
B.pen.
restock at 1 site
0
0.2
0.4
0.6
0.8
1
197419761978198019821984198619881990199219941996199820002002200420062008201020122014
Proporon of maximum recor
ded
abundanc
e
T. vulpecula
D. geoffroii
Fox bait frequency and extent from 1977 Foxbaing from 1997 quarterly, broadscale
Perup monitoring 1974–1990, 1–2 sites
Kingston monitoring 1994–2014 , 2 transects
Perup monitoring 1998–2014, 4–9 sites
Fofrom 2010 xbaing
monthly inPerup core
0
0.2
0.4
0.6
0.8
1
1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014
Proporon of maximum recor
ded
abundanc
e P. tapoatafa
Sminthopsis spp.
R. fuscipes
Foxbaing from 1997 was quarterlyand broadscale
(a)
(c)
(b)
Fig. 13.5. Summary of changing abundance (expressed as the proportion of peak abundance) of mammal
species in the Upper Warren region, Western Australia. (a) cage-trap transects (n = 1–11 per year) –
unsustained recovery; (b) cage-trap transects (n = 1–11 per year) – recent increase; (c) cage, Elliott and pit
trap grids (n = 22).