Nutrient transfer from sea to land

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dc.contributor.authorEllis, JC
dc.contributor.authorFariña, JM
dc.contributor.authorWitman, JD
dc.date.accessioned2025-01-21T01:06:19Z
dc.date.available2025-01-21T01:06:19Z
dc.date.issued2006
dc.description.abstractThe structure of communities is influenced by the transport of resources across ecosystem boundaries. Seabirds are capable of introducing large amounts of marine-derived nutrients to land, thereby modifying resource availability to terrestrial species.
dc.description.abstractIn this study we investigated the hypothesis that variation in nesting densities of great black-backed gulls Larus marinus and double-crested cormorants Phalacrocorax auritus would modify the effect of these species on soil nutrients and plant species composition on offshore islands in the Gulf of Maine, USA.
dc.description.abstractOur results showed a significant positive correlation between nest density and concentrations of ammonia and nitrate in soils, but no significant relationship between nest density and phosphate. Ammonia and phosphate concentrations were good predictors of plant species composition; there were more annual forbs than perennial grasses in the abandoned cormorant colony compared with the gull colonies. Extremely high concentrations of ammonia in the highest density colony (active cormorant) may have been the main factor inhibiting plant germination at this site. All of the plant species in gull and cormorant colonies showed enriched delta N-15 signatures, indicating substantial input of marine-derived nitrogen from seabirds.
dc.description.abstractOur study demonstrated that gulls and cormorants are effective vectors for the transport of marine nutrients to terrestrial ecosystems. However, transported nutrients occurred in particularly high concentrations in areas with nesting cormorants. Nesting densities and species-specific variation in resource transport should be considered when predicting the effects of seabirds and other biogenic vectors of allochthonous resources.
dc.fuente.origenWOS
dc.identifier.doi10.1111/j.1365-2656.2006.01077.x
dc.identifier.issn0021-8790
dc.identifier.urihttps://doi.org/10.1111/j.1365-2656.2006.01077.x
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96133
dc.identifier.wosidWOS:000236384700025
dc.issue.numero2
dc.language.isoen
dc.pagina.final574
dc.pagina.inicio565
dc.revistaJournal of animal ecology
dc.rightsacceso restringido
dc.subjectcross-ecosystem
dc.subjectisotopic enrichment
dc.subjectnesting density
dc.subjectseabird
dc.subjectsoil ammonia nitrate and phosphate
dc.titleNutrient transfer from sea to land
dc.typeartículo
dc.volumen75
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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