Can spatial and temporal food variability explain the winter foraging movements of a threatened saltmarsh insectivore?

Earth & Environmental Sciences

• arthropod 61%
• biomass 5%
• bird 22%
• diet 7%
• extinction 7%
• food 49%
• food availability 21%
• forage 9%
• grassland 14%
• habitat 11%
• habitat type 10%
• insect 8%
• insectivore 100%
• land 5%
• larva 8%
• limiting factor 9%
• loss 4%
• matrix 5%
• passerine 12%
• range size 9%
• refugium 10%
• saltmarsh 77%
• site selection 10%
• spatial variation 7%
• temporal variation 7%
• vegetation 5%
• winter 44%

Agriculture & Biology

• arthropods 49%
• biomass 5%
• birds 16%
• degradation 5%
• diet 4%
• extinction 8%
• flight 7%
• flocks 8%
• food availability 18%
• forage 6%
• foraging 57%
• grasslands 15%
• habitats 15%
• Hemiptera 8%
• insect outbreaks 14%
• insectivores 92%
• larvae 5%
• Neuroptera 11%
• refuge habitats 10%
• salt marshes 83%
• sampling 3%
• Sarcocornia 15%
• spatial variation 9%
• temporal variation 9%
• vegetation 6%
• winter 47%