Predation - Definition, Types and Examples | Biology Dictionary
The best-known examples of predation involve carnivorous interactions, in which one animal consumes another. Think of wolves hunting moose, owls hunting. Predation is when one organism benefits off of another organism but the organism that is not benefiting is being harmed. One example is a spider waiting in its web for an insect Another is a wolf eating a What is a predation relationship?. Predation is a biological interaction where one organism, the predator, kills and eats another . While examples of predators among mammals and birds are well known, predators can be found in a broad range of taxa. They are common . There is a positive correlation between the size of a predator and its prey. A predator.
In a broad sense, the dependence can be classified into symbiotic relationships and predator-prey relationships. It shouldn't come as a surprise that the relationship between predator and prey has a crucial role to play when it comes to ecological balance. A tilt on either side can trigger a domino effect on the environment as a whole.
- 10 Dumbfounding Examples of Predator-Prey Relationships
- Predator-Prey Relationships
If, for instance, food supply is altered as a result of lack of prey, it will reflect on the population of predatory species, as they will find it difficult to reproduce in times of food scarcity. And like we said earlier, if the population of predators comes down, herbivores will run a riot in the ecosystem.
It's a classic example of the survival of the fittest. In stark contrast to the cheetah-gazelle relationship is the relationship between African wild dogs and zebras.
Wild dogs might be small, but they make up for it by resorting to pack behavior and their remarkable stamina. The strategy is simple: As for zebras, they have the camouflage working in their favor, making it difficult for their predators to isolate and attack an individual. After analyzing the number of lynx and hare pelts brought in by hunters, Canadian biologist, Charles Gordon Hewitt came to a conclusion that the two species are highly dependent on each other, such that the population of the Canadian lynx rises and falls with a rise and fall in the snowshoe hare population.
Further research revealed that it was the food shortage resulting from the decline in hare population that affected the reproduction rate of this lynx species. While wildebeests and Cape buffaloes form a major chunk of their diet, African lions are also known to prey on warthogs, especially when they are easily available.
From the researchers' point of view, the relationship between wolves and moose on the Isle Royale gives the best picture of predator-prey relationships, as moose are almost the only prey for wolves on this isolated island. After studying their relationship for decades, researchers have realized that the food shortage resulting from wolves eating too many moose, keeps a check on the wolf population as well.
In the marine biome, the great white shark is the apex predator. It usually preys on elephant seals. An important thing to realize is that as both organisms become faster to adapt to their environments, their relationship remains the same: This is true in all predator-prey relationships.
Another example of predator-prey evolution is that of the Galapagos tortoise. Galapagos tortoises eat the branches of the cactus plants that grow on the Galapagos islands. On one of the islands, where long-necked tortoises live, the branches are higher off the ground.
Predation - Wikipedia
On another island, where short-necked tortoises live, the branches are lower down. This makes it possible to kill creatures larger than those they could overpower singly; for example, hyenasand wolves collaborate to catch and kill herbivores as large as buffalo, and lions even hunt elephants. For example, when mixed flocks of birds forage, the birds in front flush out insects that are caught by the birds behind. Spinner dolphins form a circle around a school of fish and move inwards, concentrating the fish by a factor of Predators of different species sometimes cooperate to catch prey.
In coral reefswhen fish such as the grouper and coral trout spot prey that is inaccessible to them, they signal to giant moray eelsNapoleon wrasses or octopuses.
These predators are able to access small crevices and flush out the prey. Solitary predators have more chance of eating what they catch, at the price of increased expenditure of energy to catch it, and increased risk that the prey will escape. These include speed, agility, stealth, sharp senses, claws, teeth, filters, and suitable digestive systems.
Many predators have acute hearing, and some such as echolocating bats hunt exclusively by active or passive use of sound. Some predators such as snakes and fish-eating birds like herons and cormorants swallow their prey whole; some snakes can unhinge their jaws to allow them to swallow large prey, while fish-eating birds have long spear-like beaks that they use to stab and grip fast-moving and slippery prey.
Lions can attack much larger prey, including elephants, but do so much less often. Predators are often highly specialized in their diet and hunting behaviour; for example, the Eurasian lynx only hunts small ungulates. When prey have a clumped uneven distribution, the optimal strategy for the predator is predicted to be more specialized as the prey are more conspicuous and can be found more quickly;  this appears to be correct for predators of immobile prey, but is doubtful with mobile prey.
This has led to a correlation between the size of predators and their prey. Size may also act as a refuge for large prey. For example, adult elephants are relatively safe from predation by lions, but juveniles are vulnerable.
Members of the cat family such as the snow leopard treeless highlandstiger grassy plains, reed swampsocelot forestfishing cat waterside thicketsand lion open plains are camouflaged with coloration and disruptive patterns suiting their habitats.