Territorial calls in the Little Owl (Athene noctua): spatial dispersion and social interplay of mates and neighbours

Lars B. Jacobsen; Peter Sunde; Carsten Rahbek; Torben Dabelsteen; Kasper Thorup

Territorial calls in the Little Owl (Athene noctua): spatial dispersion and social interplay of mates and neighbours

Lars B. Jacobsen, Peter Sunde, Carsten Rahbek, Torben Dabelsteen, Kasper Thorup

Ecology and Evolution

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Abstract

With the aim of quantifying spatio-temporal and social factors affecting territorial calls in LittleOwls,we collected data on the calling behaviour of radio tracked individuals froma low-density population in Northern Jutland, Denmark. There was considerable seasonal variation in calling activity.During the breeding season,males calling away fromthe nest were located in the direction of the neighbouring nesting site, andmaleswith a neighbour within hearing distance called more often than those with a longer distance to the nearest neighbour. Call posts were on average closer to the nest than telemetry observations, but did not appear to be related tomate distance.With a sound pressure level of 82 dB(A) at 1- m distance, the territorial calls were estimated to be audible to a distance of 4.4 km. Call posts were on average 4.1 mabove the ground, which probably maximizes the transmission distance.

Original language	English
Journal	Ornis Fennica
Volume	90
Issue number	1
Pages (from-to)	41-49
Number of pages	9
ISSN	0030-5685
Publication status	Published - 2013

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title = "Territorial calls in the Little Owl (Athene noctua): spatial dispersion and social interplay of mates and neighbours",

abstract = "With the aim of quantifying spatio-temporal and social factors affecting territorial calls in LittleOwls,we collected data on the calling behaviour of radio tracked individuals froma low-density population in Northern Jutland, Denmark. There was considerable seasonal variation in calling activity.During the breeding season,males calling away fromthe nest were located in the direction of the neighbouring nesting site, andmaleswith a neighbour within hearing distance called more often than those with a longer distance to the nearest neighbour. Call posts were on average closer to the nest than telemetry observations, but did not appear to be related tomate distance.With a sound pressure level of 82 dB(A) at 1- m distance, the territorial calls were estimated to be audible to a distance of 4.4 km. Call posts were on average 4.1 mabove the ground, which probably maximizes the transmission distance.",

author = "Jacobsen, {Lars B.} and Peter Sunde and Carsten Rahbek and Torben Dabelsteen and Kasper Thorup",

year = "2013",

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TY - JOUR

T1 - Territorial calls in the Little Owl (Athene noctua)

T2 - spatial dispersion and social interplay of mates and neighbours

AU - Jacobsen, Lars B.

AU - Sunde, Peter

AU - Rahbek, Carsten

AU - Dabelsteen, Torben

AU - Thorup, Kasper

PY - 2013

Y1 - 2013

N2 - With the aim of quantifying spatio-temporal and social factors affecting territorial calls in LittleOwls,we collected data on the calling behaviour of radio tracked individuals froma low-density population in Northern Jutland, Denmark. There was considerable seasonal variation in calling activity.During the breeding season,males calling away fromthe nest were located in the direction of the neighbouring nesting site, andmaleswith a neighbour within hearing distance called more often than those with a longer distance to the nearest neighbour. Call posts were on average closer to the nest than telemetry observations, but did not appear to be related tomate distance.With a sound pressure level of 82 dB(A) at 1- m distance, the territorial calls were estimated to be audible to a distance of 4.4 km. Call posts were on average 4.1 mabove the ground, which probably maximizes the transmission distance.

AB - With the aim of quantifying spatio-temporal and social factors affecting territorial calls in LittleOwls,we collected data on the calling behaviour of radio tracked individuals froma low-density population in Northern Jutland, Denmark. There was considerable seasonal variation in calling activity.During the breeding season,males calling away fromthe nest were located in the direction of the neighbouring nesting site, andmaleswith a neighbour within hearing distance called more often than those with a longer distance to the nearest neighbour. Call posts were on average closer to the nest than telemetry observations, but did not appear to be related tomate distance.With a sound pressure level of 82 dB(A) at 1- m distance, the territorial calls were estimated to be audible to a distance of 4.4 km. Call posts were on average 4.1 mabove the ground, which probably maximizes the transmission distance.

M3 - Journal article

SN - 0030-5685

VL - 90

SP - 41

EP - 49

JO - Ornis Fennica

JF - Ornis Fennica

IS - 1

ER -

Territorial calls in the Little Owl (Athene noctua): spatial dispersion and social interplay of mates and neighbours

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