Marine gastropods of the family Naticidae are worldwide distributed and known for their unusual predatory habits. Due to wide distribution, naticids studied like predators intertidal bivalves. The present study demonstrates predation naticid gastropod Natica marochiensis on bivalve Donax striatus in northeastern region Brazil.

Enclosure and field trials were used to investigate the responses of hedgehogs, Erinaceus europaeus, to predator (badger,Meles meles) and non-predator odours. Two hypotheses were tested: (1) hedgehogs are capable of responding to badger odour; and (2) hedgehogs prefer not to forage in areas tainted with badger odour. In enclosure trials, hedgehogs almost exclusively avoided feeding at sites tai...

Predators can affect the vertical distribution of mobile intertidal invertebrates in two ways: they can (1) cause greater mortality of prey at certain intertidal levels, and (2) induce prey to seek safer intertidal areas. In this study, we investigate whether low-intertidal and subtidal predators affect the intertidal distribution of two congeneric species of small herbivorous gastropods of nor...

—Greater Sage-Grouse (Centrocercus urophasianus) have declined in distribution and abundance in western North America over the past century. Depredation of nests and predation of chicks can be two of the most influential factors limiting their productivity. Prey species utilize antipredation behaviors, such as predator avoidance, to reduce the risk of predation. Birds in general balance the dua...

distribution of population depends on the distribution of goods and services. the distribution of population is very important not only for its effects on different aspects of population but also because of its relations with the general features of area. programmers can control the distribution of the population if they control the distribution of goods and services. the purpose of the present...