Dimensions of diet segregation in grey seals Halichoerus grypus revealed through stable isotopes of carbon (δ¹³C) and nitrogen (δ¹⁵N)

Agriculture & Biology

• Halichoerus grypus 100%
• stable isotopes 69%
• seals 68%
• carbon 43%
• nitrogen 38%
• diet 34%
• niches 16%
• body size 16%
• Northwest Atlantic 14%
• marine mammals 12%
• food webs 10%
• carnivores 10%
• isotopes 9%
• Canada 8%
• invertebrates 7%
• foraging 7%
• skin (animal) 7%
• predators 7%
• mammals 6%
• sampling 6%
• gender 5%
• breeding 5%
• fish 5%
• lipids 5%
• animals 4%

Earth & Environmental Sciences

• diet 58%
• stable isotope 56%
• nitrogen 39%
• carbon 37%
• niche breadth 32%
• body size 23%
• dietary overlap 18%
• prey selection 17%
• breeding population 14%
• foraging behavior 14%
• marine mammal 12%
• carnivore 12%
• fat 11%
• food web 10%
• energetics 10%
• skin 9%
• mammal 9%
• invertebrate 9%
• predator 9%
• isotope 8%
• animal 7%
• fish 6%
• comparison 4%
• rate 3%
• effect 2%