A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
The Ghost of the Hawk : Top Predator Shaping Bird Communities in Space and Time (2021)
Burgas, D., Ovaskainen, O., Blanchet, F. G., & Byholm, P. (2021). The Ghost of the Hawk : Top Predator Shaping Bird Communities in Space and Time. Frontiers in Ecology and Evolution, 9, Article 638039. https://doi.org/10.3389/fevo.2021.638039
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Burgas, Daniel; Ovaskainen, Otso; Blanchet, F. Guillaume; Byholm, Patrik
Lehti tai sarja: Frontiers in Ecology and Evolution
eISSN: 2296-701X
Julkaisuvuosi: 2021
Ilmestymispäivä: 14.05.2021
Volyymi: 9
Artikkelinumero: 638039
Kustantaja: Frontiers Media SA
Julkaisumaa: Sveitsi
Julkaisun kieli: englanti
DOI: https://doi.org/10.3389/fevo.2021.638039
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/75845
Tiivistelmä
Despite the wide recognition that strongly interacting species can influence distributions of other species, species interactions are often disregarded when assessing or projecting biodiversity distributions. In particular, it remains largely uncharted the extent to which the disappearance of a keystone species cast repercussions in the species composition of future communities. We tested whether an avian top predator can exert both positive and negative effects on spatial distribution of other species, and if these effects persist even after the predator disappeared. We acquired bird count data at different distances from occupied and non-occupied nests of Northern goshawks Accipiter gentilis. Using a Bayesian joint species distribution model, we found that large bird species (preferred prey) are less abundant in the proximity of nests occupied by goshawks, whereas smaller species –expected to get protection from subordinate predators displaced by goshawks– more often showed an opposite association. These spatial differences level off gradually, but still persist for years after the goshawks have disappeared. This indicates that the composition of local bird populations and communities might be conditional on past species interactions. Therefore, endeavors centered around species distributions could largely benefit from acknowledging the local extinction of keystone species.
YSO-asiasanat: linnut; lintukannat; petolinnut; saaliseläimet; eliöyhteisöt; bayesilainen menetelmä
Vapaat asiasanat: Bayesian community-model; ecological legacy; species distribution; predator-prey interactions; keystone species; heterospecific attraction
Liittyvät organisaatiot
OKM-raportointi: Kyllä
Raportointivuosi: 2021
JUFO-taso: 1