Data from: Can differential nutrient extraction explain property variations in a predatory trap?
| Main Authors: | Blamires, Sean J., Piorkowski, Dakota, Chuang, Angela, Tseng, Yi-Hsuan, Toft, Søren, Tso, I-Min, Tso, I.-M. |
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| Format: | info dataset Journal |
| Terbitan: |
, 2015
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/4988529 |
Daftar Isi:
- Predators exhibit flexible foraging to facilitate taking prey that offer important nutrients. Because trap-building predators have limited control over the prey they encounter, differential nutrient extraction and trap architectural flexibility may be used as a means of prey selection. Here, we tested whether differential nutrient extraction induces flexibility in architecture and stickiness of a spider's web by feeding Nephila pilipes live crickets (CC), live flies (FF), dead crickets with the web stimulated by flies (CD) or dead flies with the web stimulated by crickets (FD). Spiders in the CD group consumed less protein per mass of lipid or carbohydrate, and spiders in the FF group consumed less carbohydrates per mass of protein. Spiders from the CD group built stickier webs that used less silk, whereas spiders in the FF group built webs with more radii, greater catching areas and more silk, compared with other treatments. Our results suggest that differential nutrient extraction is a likely explanation for prey-induced spider web architecture and stickiness variations.
- Blamiresetal_droplet counts1Counts of glue droplets along single strands of spiral thread.Blamiresetal_droplet morphology1Measurements made on magnified glue droplets to calculate spiral droplet morphological parameters.Blamiresetal_Nutrients analysisNutrient analysis on all insect bodies collected throughout the study. Specimens are coded as to whether or not they were analysed whole (W), CRICKETS (C) or flies (F), fed live (L) or dead (D) or decoupled from their vibrations (V).Blamiresetal_nutrients overviewNutrient analyses compiled into nutrients analyzed and treatments segregated.Blamiresetal_prey consumptionApproximate masses of prey eaten across treatments. Provides mean whole prey masses compared to the masses of prey remains in enclosures after feeding.Blamiresetal_spiral stickinessOverview of spiral stickiness measurements. These data are accumulated from individual stickiness tests which comprise of over 20 individual xl files (>200 individual tests), which we can provide if requested.Blamiresetal_web geometry measurements2Provides an overview of all web architectural measurements made for all spiders.