Response: Demography affects spawning location in Northeast Arctic cod, but what affects demography?
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چکیده
منابع مشابه
Response: Demography affects spawning location in Northeast Arctic cod, but what affects demography?
In a letter to the editor, Sundby (2015) expresses concerns about our study of changing spawning locations of the Northeast Arctic (NEA) stock of Atlantic cod over the period 1866–1969, where we identified statistically significant effects of the stock’s demography whereas various climate indices all fell below statistical significance. Our conclusion on the role ascribed to climate disagrees w...
متن کاملLong-term change in a behavioural trait: truncated spawning distribution and demography in Northeast Arctic cod
Harvesting may be a potent driver of demographic change and contemporary evolution, which both may have great impacts on animal populations. Research has focused on changes in phenotypic traits that are easily quantifiable and for which time series exist, such as size, age, sex, or gonad size, whereas potential changes in behavioural traits have been under-studied. Here, we analyse potential dr...
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Prior to the 1920s, the northeast Arctic (NA) cod were caught at spawning grounds ranging from the southernmost to the northernmost parts of the Norwegian coast, but have for the last 50 yr mainly been caught around the Lofoten archipelago and northwards. The NA cod have their feeding and nursery grounds in the Barents Sea, and migrate south towards the Norwegian coast in the winter to spawn. T...
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Populations are shifting their phenology in response to climate change, but these shifts are often asynchronous among interacting species. Resulting phenological mismatches can drive simultaneous changes in natural selection and population demography, but the links between these interacting processes are poorly understood. Here we analyse 37 years of data from an individual-based study of great...
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Elk (Cervus elaphus) in the Greater Yellowstone Ecosystem alter patterns of aggregation, habitat selection, vigilance, and foraging in the presence of wolves (Canis lupus). Antipredator behaviors like these can reduce predation risk but are also likely to carry costs. Data from five elk populations studied for 16 site years showed that progesterone concentrations (from 1489 fecal samples) decli...
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ژورنال
عنوان ژورنال: Global Change Biology
سال: 2015
ISSN: 1354-1013
DOI: 10.1111/gcb.12977