Nicola F. Rammell's research while affiliated with Simon Fraser University and other places

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Publications (2)

Effects of spawning Pacific salmon on terrestrial invertebrates: Insects near spawning habitat are isotopically enriched with nitrogen‐15 but display no differences in body size
Article
Full-text available
  • Aug 2021
Abstract When Pacific salmon (Oncorhynchus spp.) spawn and die, they deliver marine‐derived nutrient subsidies to freshwater and riparian ecosystems. These subsidies can alter the behavior, productivity, and abundance of recipient species and their habitats. Isotopes, such as nitrogen‐15 (15N), are often used to trace the destination of marine‐deri...
Visiting insect behaviour and pollen transport for a generalist oak-savannah wildflower, Camassia quamash (Asparagaceae)
Article
  • Dec 2018
Many studies have investigated plant-pollinator interactions using visit records of insects contacting floral reproductive organs. However, these studies may not reflect the effectiveness of visits, since factors such as visitor behaviour and the composition of pollen on their bodies may influence conspecific pollen transfer required for fertilisat...

Citations

... A likely explanation is that lower trophiclevel organisms (e.g., plants) uptake nutrients over smaller areas, and are therefore more affected by characteristics of their local environment, while higher trophic-level taxa (e.g., songbirds) forage over larger areas, likely spanning multiple locations both within and among islands. Indeed, a similar study found riparian soil and herbivorous weevils to have higher levels of δ 15 N closer to salmon-bearing streams, but δ 15 N of more mobile, carnivorous beetles was unaffected (Rammell et al., 2021). We also found that 15 N enrichment drops off more rapidly with increasing distance to shore on larger islands. ...
Reference: Biogeographic features mediate marine subsidies to island food webs
Effects of spawning Pacific salmon on terrestrial invertebrates: Insects near spawning habitat are isotopically enriched with nitrogen‐15 but display no differences in body size
Citing article
  • Aug 2021