Abstract
A model of arthropod predation on small (second instars) velvetbean caterpillar, Anticarsia gemmatalis (Hübner), in Florida soybeans is presented. Predation is mathematically described as a function of the number of prey and predators, predator search, and soybean leaf area. Predator search was determined to be a negative exponential function of prey density whereby predators searched less area as prey density increased. Prey density was defined in consideration of the size of the predators' searching universe (the soybean leaf area) as the number of prey per square centimeter of leaf area. The influence of plant growth on predator search and predation is discussed.
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Claims 2
Claim · model-written summary
A mathematical model represents predation as a function of prey, predators, predator search, and soybean leaf area.
- Taxon
- soybeans
Glycine maxe1 - Interactor
- Anticarsia gemmatalis
Anticarsia gemmatalise1pest - Outcome
- Predatione0
- Qualifier
- soybean leaf areae0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Predation is mathematically described as a function of the number of prey and predators, predator search, and soybean leaf area.”
e1“velvetbean caterpillar, Anticarsia gemmatalis (Hübner), in Florida soybeans”
Claim · model-written summary
Predator search declined exponentially as prey density increased.
- Taxon
- Anticarsia gemmatalisAnticarsia gemmatalise1
- Interactor
- Anticarsia gemmatalisAnticarsia gemmatalise1pest
- Outcome
- Predator searche0
- Direction
- lesse0
- Qualifier
- prey density increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Predator search was determined to be a negative exponential function of prey density whereby predators searched less area as prey density increased.”
e1“velvetbean caterpillar, Anticarsia gemmatalis (Hübner), in Florida soybeans”