Annex 3: A summary of evidence on the population-level impact of power lines on globally threatened (iucn, 2012) bird species

• Pages: 120-121

120

EN Annex3/6

Annex 3 Summary of evidence on the population-

level impact of power lines on globally threatened

(IUCN, 2012) bird species

Species

Main

impact

Location

Study

period

Casualties

Conclusions

Key

papers

Dalmatian

Pelican

Pelecanus

crispus

Additional

mortality due

to collision.

Porto-Lago,

Greece

(Wintering

ground)

1985-

1987

28 killed

individuals

(69% 1st-year,

31% immature)

Combined with the effects of illegal

shooting an estimated 1.3-3.5%

decrease in breeding pairs in Greece

and Bulgaria in a 3-year period.

Crivelli,

1988

Lesser White-

fronted Goose

Anser

erythropus

Additional

mortality due

to collision.

-

-

-

May increase mortality. A potential

factor, but importance unknown. Has

to be taken into account in EIAs.

AEWA,

2008

Red-brested

Goose

Branta

ruficollis

Additional

mortality due

to collision.

-

-

-

There are no quantitative data or

predictive models to estimate the

impact of collision mortality on Red-

breasted Goose populations. A

potential threat, but importance

unknown.

BSPB,

2010

Egyptian

Vulture

Neophron

percnopterus

Additional

mortality due

to

electrocution.

Port Sudan,

Sudan

1982,

1983,

2005,

2010

48+2+5+17

killed

individuals

All birds were found under the same

31-km segment of power line.

0,055dead bird per pylon. The

magnitude of the mortality is fully

consistent with observed population

declines in potential source

populations in Israel, Syria, Turkey and

Jordan, and highlights that

electrocution-caused mortality may

potentially have population-level

effects over a broad geographic scale.

Angelov et

al., 2012

Nikolaus,

1984,

Nikolaus,

2006

Greater

Spotted Eagle

Aquila clanga

Additional

mortality due

to

electrocution.

Russia,

Kazakhstan

1990 -

2010

6 individuals (in

a 2082 km

survey)

A potential factor, but significance is

presumably low.

Karyakin,

2012

Eastern

Imperial Eagle

Aquila heliaca

Additional

mortality due

to

electrocution.

Hungary

2001-

2009

20 out of 90

individuals

22.22% electrocution rate of total

mortality. In spite of the almost 20-year

effort for bird-friendly modification of

electric pylons in Hungary,

electrocution is still among the most

important mortality factors of several

raptor species, including the Imperial

Eagle.

Horváth et

al., 2011