Decadal changes in the benthic invertebrate community in western Lake Erie between 1981 and 2004

Soster, Frederick M.; McCall, Peter L.; Herrmann, Keith A.

doi:10.1016/j.jglr.2011.03.005

Cited by 14 publications

(2 citation statements)

References 71 publications

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“…However, despite producing billions of mayflies, recent mayfly productivity from 2012 to 2019 had declined by more than 50% ( Stepanian et al , 2020 ). Likewise, chironomids have steeply declined since 1981 ( Soster et al , 2011 ). These decreases in insect biomass can drive proportional declines in aerial insectivore populations ( Møller, 2019 ).…”

Section: Discussionmentioning

confidence: 99%

Nutritional consequences of breeding away from riparian habitats in Bank Swallows: new evidence from multiple endogenous markers

Génier

Guglielmo

Mitchell

et al. 2021

Conservation Physiology

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The Bank Swallow (Riparia riparia), a threatened species in Canada, breeds primarily in banks at lakeshores and rivers and in artificial (typically inland) aggregate mining pits. Inland pits may be ecological traps for this species, but relative dietary trade-offs between these two nesting habitats have not been investigated. The availability of aquatic emergent insects at lakeshores may have associated nutritional benefits for growing nestlings due to increased omega-3 fatty acids (FAs) in prey. We compared the diets of juvenile swallows from lakeshore and inland pit sites using assays of stable isotope values (δ13C, δ15N, δ2H) of feathers, faecal DNA metabarcoding and blood plasma FAs. Colony proximity to Lake Erie influenced the use of aquatic versus terrestrial insects by Bank Swallow adults and juveniles. Feather δ2H was particularly useful as a tracer of aquatic emergent versus terrestrial prey, and inland juveniles had feathers enriched in 2H, reflective of diets composed of fewer aquatic emergent insects. DNA metabarcoding of juvenile and adult faecal material indicated that lakeshore birds consumed more aquatic-emergent chironomids than inland birds. Lakeshore juveniles had elevated plasma omega-3 eicosapentaenoic acid levels compared with inland pit-breeding birds. We discuss the need to consider ‘nutritional landscapes’ and the importance of this concept in conservation of declining species and populations.

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Section: Discussionmentioning

confidence: 99%

Nutritional consequences of breeding away from riparian habitats in Bank Swallows: new evidence from multiple endogenous markers

Génier

Guglielmo

Mitchell

et al. 2021

Conservation Physiology

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“…In the nearshore region of the western basin of Lake Erie, total densities of oligochaetes and proportions of tubificid worms tolerant of extreme enrichment decreased from 1961 to 1982, indicating decreased pollution and eutrophication during this time frame (Schloesser et al, 1995). Soster et al (2011) documented 72-80% declines in densities of naidid and tubificid oligochaetes in western Lake Erie between 1982 and 1993, during the period of expanding dreissenid populations. They attributed the declines to a combination of decreased anthropogenic phosphorus inputs and increased filtering activity of dreissenid mussels.…”

Section: Introductionmentioning

confidence: 97%