In an old field system in NE Connecticut spider predators interact with their grasshopper prey. The image below illustrates the result of an experiment. In the top panel (B) of the image below, when spider predators were not present, grasshoppers will preferentially forage on grasses, their preferred diet. Grasshoppers had a stronger negative effect on grass biomass relative to herbaceous species (indicated by the thickness of the arrow). This switched when non-lethal spiders (spiders with their mouth parts glued shut) were introduced (bottom panel C). Grasshoppers instead foraged on herbaceous species which offered safer habitat even though it was a less preferred food. Fill in the blanks: This experiment demonstrates [Select] where spiders [Select] affected the biomass of plant species by [Select] grasshoppers. EXP B
In an old field system in NE Connecticut spider predators interact with their grasshopper prey. The image below illustrates the result of an experiment. In the top panel (B) of the image below, when spider predators were not present, grasshoppers will preferentially forage on grasses, their preferred diet. Grasshoppers had a stronger negative effect on grass biomass relative to herbaceous species (indicated by the thickness of the arrow). This switched when non-lethal spiders (spiders with their mouth parts glued shut) were introduced (bottom panel C). Grasshoppers instead foraged on herbaceous species which offered safer habitat even though it was a less preferred food. Fill in the blanks: This experiment demonstrates [Select] where spiders [Select] affected the biomass of plant species by [Select] grasshoppers. EXP B
Chapter17: Aquaculture Business
Section: Chapter Questions
Problem 5KA
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The option for the first blank is: consumptive effect. Non comsumptive effects.
Second blank: directly. Indirectly
third blank: intimidating. consuming
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