Annex 2: A systematic prioritised list of impacts of bird/power line interactions (birdlife, 2013)

• Pages: 118-119

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EN Annex2/6

Annex 2 Systematic prioritised list of impacts of

bird/power line interactions (Birdlife, 2013)

Type of the Impact

Status of the

Impact1

Severity /

Significance2

Reversibility3

Scale of the

Impact4

Cumulative

Impact5

Negative – Ecological &

Physiological

Mortality

Direct

High

Partly reversible

Multi-national

High

Electrocution

Proven

High

Partly reversible

Multi-national

High

Collision

Potential

Moderate

Partly reversible

Regional

High

Habitat loss and fragmentation

Potential

Moderate

Partly reversible

Regional

Medium

Disturbance/ Displacement

Potential

Moderate

Partly reversible

Local

Medium

Electromagnetic field

Potential

Unknown

Unknown

Multi-national

Unknown

Negative – Economic

Loss of income at electric

utilities

Lost revenue

Proven

High

Partly reversible

Multi-national

High

Power restoration

Proven

High

Completely

reversible

Multi-national

High

Equipment repair

Proven

High

Completely

reversible

Multi-national

High

Nest removal and other animal

damage-control measures

Proven

Moderate

Completely

reversible

Multi-national

Medium

Administrative and managerial

time

Proven

High

Partly reversible

Multi-national

High

Lost service to customers and

negative public perception

Proven

High

Partly reversible

Multi-national

High

Reduced electrical system

reliability

Proven

High

Partly reversible

Multi-national

High

Loss of income at land-users

Proven

High

Partly reversible

Multi-national

High

Hunting & game management

Proven

High

Partly reversible

National

High

Agricultural land-use, irrigation

Proven

Low

Irreversible

National

Low

Forestry

Proven

Moderate

Irreversible

National

Moderate

Positive –Ecological

Breeding substrate, nest site

Proven, direct

High

-

Multi-national

-

Perching, roosting and hunting

post

Proven, direct

High

-

Multi-national

-

Habitat creation, management

Proven, direct

Moderate

-

National

-

(Based on McCann, 2005; APLIC, 2006 and van Rooyen, 2012 and supplemented with information from this review)

1. Status of the impact: Potential – Proven