Predating test

Nevertheless, this method might be the next best option where the supply of live prey is restricted.A second possible alternative is a prey choice test.However, in combination with data on the abundance of prey species in a predator’s habitat, this technique might prove valuable.

Their prey includes fragile barnacle species (e.g., Tetraclita japonica (Pilsbry, 1916)), and collecting many intact individuals from the rocky substrate on which they occur is difficult.Similar methods are often used in habitat choice experiments [8, 9], and such methods could be effective if modified to determine the prey choice instead of habitat selection.Although this method does not assess predation directory, but rather only preference for prey as determined by orientation, it can be performed using a small quantity of live prey.The carbon and nitrogen stable isotope analysis supported the live prey experiment. clavigera prefer preying on live prey but will scavenge or cannibalize when no other food is available in natural habitats, experimental methods using dead prey are not suitable for investigating its prey preferences.Considering the damage to natural habitats, the prey choice test is ecologically benign.

Leave a Reply