Habitat effects on the breeding performance of three forest-dwelling hawks

Heidi Björklund, Jari Valkama, Erkki Tomppo, Toni Laaksonen

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

Kuvaus

Habitat loss causes population declines, but the mechanisms are rarely known. In the European Boreal Zone, loss of old forest due to intensive forestry is suspected to cause declines in forest-dwelling raptors by reducing their breeding performance. We studied the boreal breeding habitat and habitat-associated breeding performance of the northern goshawk (Accipiter gentilis), common buzzard (Buteo buteo) and European honey buzzard (Pernis apivorus). We combined long-term Finnish bird-of-prey data with multi-source national forest inventory data at various distances (100–4000 m) around the hawk nests. We found that breeding success of the goshawk was best explained by the habitat within a 2000-m radius around the nests; breeding was more successful with increasing proportions of old spruce forest and water, and decreasing proportions of young thinning forest. None of the habitat variables affected significantly the breeding success of the common buzzard or the honey buzzard, or the brood size of any of the species. The amount of old spruce forest decreased both around goshawk and common buzzard nests and throughout southern Finland in 1992–2010. In contrast, the area of young forest increased in southern Finland but not around hawk nests. We emphasize the importance of studying habitats at several spatial and temporal scales to determine the relevant species-specific scale and to detect environmental changes. Further effort is needed to reconcile the socioeconomic and ecological functions of forests and habitat requirements of old forest specialists.
Alkuperäiskielienglanti
Artikkelie0137877
LehtiPLoS One
Vuosikerta10
Numero9
Sivumäärä19
ISSN1932-6203
DOI - pysyväislinkit
TilaJulkaistu - 30 syyskuuta 2015
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

Lisätietoja

PLoS ONE 10(9): e0137877
Volume:
Proceeding volume:

Tieteenalat

  • 1181 Ekologia, evoluutiobiologia

Lainaa tätä

Björklund, Heidi ; Valkama, Jari ; Tomppo, Erkki ; Laaksonen, Toni. / Habitat effects on the breeding performance of three forest-dwelling hawks. Julkaisussa: PLoS One. 2015 ; Vuosikerta 10, Nro 9.
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title = "Habitat effects on the breeding performance of three forest-dwelling hawks",
abstract = "Habitat loss causes population declines, but the mechanisms are rarely known. In the European Boreal Zone, loss of old forest due to intensive forestry is suspected to cause declines in forest-dwelling raptors by reducing their breeding performance. We studied the boreal breeding habitat and habitat-associated breeding performance of the northern goshawk (Accipiter gentilis), common buzzard (Buteo buteo) and European honey buzzard (Pernis apivorus). We combined long-term Finnish bird-of-prey data with multi-source national forest inventory data at various distances (100–4000 m) around the hawk nests. We found that breeding success of the goshawk was best explained by the habitat within a 2000-m radius around the nests; breeding was more successful with increasing proportions of old spruce forest and water, and decreasing proportions of young thinning forest. None of the habitat variables affected significantly the breeding success of the common buzzard or the honey buzzard, or the brood size of any of the species. The amount of old spruce forest decreased both around goshawk and common buzzard nests and throughout southern Finland in 1992–2010. In contrast, the area of young forest increased in southern Finland but not around hawk nests. We emphasize the importance of studying habitats at several spatial and temporal scales to determine the relevant species-specific scale and to detect environmental changes. Further effort is needed to reconcile the socioeconomic and ecological functions of forests and habitat requirements of old forest specialists.",
keywords = "1181 Ecology, evolutionary biology, bird-of-prey;Raptor;hawk;breeding habitat;breeding performance;breeding success;boreal;Forest;conifer;old forest;Forestry;habitat change;satellite image;multi-source national forest inventory;environmental change;Population decline;Scale;nest site;territory;landscape",
author = "Heidi Bj{\"o}rklund and Jari Valkama and Erkki Tomppo and Toni Laaksonen",
note = "PLoS ONE 10(9): e0137877 Volume: Proceeding volume:",
year = "2015",
month = "9",
day = "30",
doi = "10.1371/journal.pone.0137877",
language = "English",
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journal = "PLoS One",
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Habitat effects on the breeding performance of three forest-dwelling hawks. / Björklund, Heidi; Valkama, Jari; Tomppo, Erkki; Laaksonen, Toni.

julkaisussa: PLoS One, Vuosikerta 10, Nro 9, e0137877, 30.09.2015.

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

TY - JOUR

T1 - Habitat effects on the breeding performance of three forest-dwelling hawks

AU - Björklund, Heidi

AU - Valkama, Jari

AU - Tomppo, Erkki

AU - Laaksonen, Toni

N1 - PLoS ONE 10(9): e0137877 Volume: Proceeding volume:

PY - 2015/9/30

Y1 - 2015/9/30

N2 - Habitat loss causes population declines, but the mechanisms are rarely known. In the European Boreal Zone, loss of old forest due to intensive forestry is suspected to cause declines in forest-dwelling raptors by reducing their breeding performance. We studied the boreal breeding habitat and habitat-associated breeding performance of the northern goshawk (Accipiter gentilis), common buzzard (Buteo buteo) and European honey buzzard (Pernis apivorus). We combined long-term Finnish bird-of-prey data with multi-source national forest inventory data at various distances (100–4000 m) around the hawk nests. We found that breeding success of the goshawk was best explained by the habitat within a 2000-m radius around the nests; breeding was more successful with increasing proportions of old spruce forest and water, and decreasing proportions of young thinning forest. None of the habitat variables affected significantly the breeding success of the common buzzard or the honey buzzard, or the brood size of any of the species. The amount of old spruce forest decreased both around goshawk and common buzzard nests and throughout southern Finland in 1992–2010. In contrast, the area of young forest increased in southern Finland but not around hawk nests. We emphasize the importance of studying habitats at several spatial and temporal scales to determine the relevant species-specific scale and to detect environmental changes. Further effort is needed to reconcile the socioeconomic and ecological functions of forests and habitat requirements of old forest specialists.

AB - Habitat loss causes population declines, but the mechanisms are rarely known. In the European Boreal Zone, loss of old forest due to intensive forestry is suspected to cause declines in forest-dwelling raptors by reducing their breeding performance. We studied the boreal breeding habitat and habitat-associated breeding performance of the northern goshawk (Accipiter gentilis), common buzzard (Buteo buteo) and European honey buzzard (Pernis apivorus). We combined long-term Finnish bird-of-prey data with multi-source national forest inventory data at various distances (100–4000 m) around the hawk nests. We found that breeding success of the goshawk was best explained by the habitat within a 2000-m radius around the nests; breeding was more successful with increasing proportions of old spruce forest and water, and decreasing proportions of young thinning forest. None of the habitat variables affected significantly the breeding success of the common buzzard or the honey buzzard, or the brood size of any of the species. The amount of old spruce forest decreased both around goshawk and common buzzard nests and throughout southern Finland in 1992–2010. In contrast, the area of young forest increased in southern Finland but not around hawk nests. We emphasize the importance of studying habitats at several spatial and temporal scales to determine the relevant species-specific scale and to detect environmental changes. Further effort is needed to reconcile the socioeconomic and ecological functions of forests and habitat requirements of old forest specialists.

KW - 1181 Ecology, evolutionary biology

KW - bird-of-prey;Raptor;hawk;breeding habitat;breeding performance;breeding success;boreal;Forest;conifer;old forest;Forestry;habitat change;satellite image;multi-source national forest inventory;environmental change;Population decline;Scale;nest site;territo

U2 - 10.1371/journal.pone.0137877

DO - 10.1371/journal.pone.0137877

M3 - Article

VL - 10

JO - PLoS One

JF - PLoS One

SN - 1932-6203

IS - 9

M1 - e0137877

ER -