Abstract:
:Predator foraging may be affected by previous prey capture, but it is unknown how nutrient balance affects foraging behaviour. Here, we use a trap-building predator to test whether nutrients from previous prey captures affect foraging behaviour. We fed orb-weaving spiders (Zygiella x-notata) prey flies of different nutrient composition and in different amounts during their first instar and measured the subsequent frequency of web building and aspects of web architecture. We found that both the likelihood of web building and the number of radii in the web were affected by prey nutrient composition while prey availability affected capture area and mesh height. Our results show that both the balance of nutrients in captured prey and the previous capture rate may affect future foraging behaviour of predators.
journal_name
Biol Lettjournal_title
Biology lettersauthors
Mayntz D,Toft S,Vollrath Fdoi
10.1098/rsbl.2009.0431subject
Has Abstractpub_date
2009-12-23 00:00:00pages
735-8issue
6eissn
1744-9561issn
1744-957Xpii
rsbl.2009.0431journal_volume
5pub_type
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