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Infectious disease, shifting climates, and opportunistic predators: cumulative factors potentially impacting wild salmon declines
TLDR
An overview of the evolutionary and ecological impacts of infectious diseases in wild salmon is provided and ways in which modern technologies can elucidate the microparasites of greatest potential import are suggested.
Planktivorous auklet Ptychoramphus aleuticus responses to ocean climate, 2005: Unusual atmospheric blocking?
[1] In spring-summer 2005, anomalous atmospheric-oceanographic coupling caused unprecedented reproductive failures and redistribution of a planktivorous marine bird in both central California (37°N)
Environmental control of the breeding success of rhinoceros auklets at Triangle Island, British Columbia
TLDR
It is found that rhinoceros auklets bred more successfully when the spring transition in regional winds and the resulting spring phytoplankton bloom occurred early in April, and these relationships with wind and chlorophyll derived from satellite data are potentially valuable explanatory tools that will be widely applicable to studies of early marine survival of many marine species.
Size- and condition-dependent predation: a seabird disproportionately targets substandard individual juvenile salmon.
TLDR
This is the first study to provide direct evidence for both size- and condition-selective predation on marine fish in the wild and is expected to be a starting point in evaluating how selective predation may structure or influence marine fish populations and bridges a fundamental incongruity between ecological theory and application.
Wing Length and Mass at Fledging Predict Local Juvenile Survival and Age at First Return in Tufted Puffins
TLDR
The authors' is the first study to report an effect of characteristics at fledging on juvenile survival and age at first return in an alcid whose offspring receive no parental care after they leave the nest site, providing an ultimate explanation for puffin nestlings' preferential allocation of energy and nutrients to wing growth over mass growth.
Ecological factors differentially affect mercury levels in two species of sympatric marine birds of the North Pacific.
In 2003 and 2004, we measured mercury concentrations and δ¹⁵N and δ¹³C values in the whole blood of adults of two species of seabirds, Cassin's auklet (Ptychoramphus aleuticus) and rhinoceros auklet
Seabird seasonal trophodynamics: isotopic patterns in a community of Pacific alcids
TLDR
Trophic level of the community as a whole increased as the season progressed due to the combination of trophic shifting by rhinoceros auklets and tufted puffins, and earlier breed- ing by zooplanktivorous Cassin's auklet than by piscivorous murres and guillemots.
Responses to changes in prey availability by Common Murres and Thick-billed Murres at the Gannet Islands, Labrador
We quantified Common Murre (Uria aalge) and Thick-billed (Uria lomvia) Murre chick diets, chick-feeding rates, breeding success, chick growth, adult masses, and pair members' time spent together at
RECOVERY OF THE ANCIENT MURRELET SYNTHLIBORAMPHUS ANTIQUUS COLONY ON LANGARA ISLAND, BRITISH COLUMBIA, FOLLOWING ERADICATION OF INVASIVE RATS
TLDR
In 2004, nine years after the eradication of rats, surveyed burrow-nesting seabirds on Langara Island to assess the current status and prognosis of this historically important Ancient Murrelet colony and to assess whether other seabird species had recolonized the island.
Massive Mortality of a Planktivorous Seabird in Response to a Marine Heatwave
Climate change has exacerbated the occurrence of large-scale sea-surface temperature anomalies, or marine heatwaves (MHW) - extreme phenomena often associated with mass mortality events of marine
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