Salmon increase forest bird abundance and diversity
| Autor: | John D. Reynolds, Marlene A. Wagner |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Food Chain Ecological Metrics Science Biodiversity Forests 010603 evolutionary biology 01 natural sciences Ecosystems Trees Birds Salmon Abundance (ecology) Animals Riparian forest Ecosystem Biomass Biomass (ecology) Multidisciplinary geography.geographical_feature_category British Columbia Ecology 010604 marine biology & hydrobiology Ecology and Environmental Sciences Organisms Biology and Life Sciences Eukaryota Species diversity Species Diversity Plants Terrestrial Environments Invertebrates Habitats Conifers Fish Geography Habitat Osteichthyes Vertebrates Amniotes Medicine Terrestrial ecosystem Research Article |
| Zdroj: | PLoS ONE, Vol 14, Iss 2, p e0210031 (2019) PLoS ONE |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0210031 |
| Popis: | Resource subsidies across ecosystems can have strong and unforeseen ecological impacts. Marine-derived nutrients from Pacific salmon (Onchorhycus spp.) can be transferred to streams and riparian forests through diverse food web pathways, fertilizing forests and increasing invertebrate abundance, which may in turn affect breeding birds. We quantified the influence of salmon on the abundance and composition of songbird communities across a wide range of salmon-spawning biomass on 14 streams along a remote coastal region of British Columbia, Canada. Point-count data spanning two years were combined with salmon biomass and 13 environmental covariates in riparian forests to test for correlates with bird abundance, foraging guilds, individual species, and avian diversity. We show that bird abundance and diversity increase with salmon biomass and that watershed size and forest composition are less important predictors. This work provides new evidence for the importance of salmon to terrestrial ecosystems and information that can inform ecosystem-based management. |
| Databáze: | OpenAIRE |
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