Data from: How long do anti-predator interventions remain effective? Patterns, thresholds and uncertainty

Human-predator conflicts are globally widespread and effective
interventions are essential to protect human assets from predator attacks.
As effectiveness also has a temporal dimension, it is of importance to
know how long interventions remain most effective and to determine time
thresholds at which effectiveness begins to decrease. To address this, we
conducted a systematic review of the temporal changes in effectiveness of
non-invasive interventions against terrestrial mammalian predators,
defining a temporal trend line of effectiveness for each published case.
We found only 26 cases from 14 publications, mainly referring to electric
fences (n = 7 cases) and deterrents (n = 7 cases). We found electric
fences and calving control to remain highly effective for the longest
time, reducing damage by 100% for periods between three months and three
years. The effectiveness of acoustical and light deterrents, as well as
guarding animals eroded quite fast after 1-5 months. Supplemental feeding
was found to be counter-productive by increasing damage over time instead
of reducing it. We stress that it is vital to make monitoring a routine
requirement for all intervention applications and suggest to standardise
periods of time over which monitoring can produce meaningful and
affordable information.