Showing posts with label insect ecosystem. Show all posts
Showing posts with label insect ecosystem. Show all posts

Intimate relationship between insects and plants














 Have you noticed carefully, so depending on how the insects of plants? Although some of them rather than plant-eaters (herbivores or fitofaga), they visited the plant as well, especially for prey or hosts in there. Many types of insects is very dependent on plants as a provider of nutrients, other than as a place to live and breed. Actually, how eratkah insect relationships with plants? How did the nature of the relationship, mutual benefit or anyone harmed?

In general, the relationship between insects and plants can be categorized into three types, based on the impact of that relationship to plants. The first relationship is that if an insect gains and losses of plants, namely through fitofagi events or predation by insects in plants. The second type is when plants and insects are also lucky lucky (mutualism), namely through the events of pollination (pollination) or removal of plants or seed dispersal by insects to other places (mirmekofori = removal of seeds by ants). And the third type of relationship is "more" profitable plants, which insects provide useful compounds for plants, for example, nitrogen derived from manure, while the plant "invited" to stay in some of the insect body, eg the curve of the stem.Phytotelmata term refers to plants that provide most of his body as a tank of water used as a place to live insects.

Plants as insect food resources

For herbivorous insects, plants are the main food source. Major nutrients, such as nitrogen derived from plant tissues of insects. In general, plants provide the primary nutrient compound, namely carbohydrates, proteins, amino acids, vitamins, minerals, and water.

Matson (1980) describes in her study, that the nitrogen (N) in the form of protein and amino acids in plant tissues is one reason (even the most important reason!) Insect herbivores choose one type of plant as a source pakannya. The main role of nitrogen in the metabolic processes that enhance health, growth, proliferation, and survival of organisms make these elements as a factor limiting in nature.

Some groups of insects are very sensitive to the nitrogen content in plant tissues, such as a group sucking insects of the order Heteroptera which increased in population when getting food plants that contain high amounts of nitrogen. Stem brown plant hopper (WBC), one of the most common pests of rice is one example of insects that are very sensitive to the nitrogen content in plant tissues (rice). Nitrogen content in plants also determine the quality of amino acid excretion and status in the body of Bemisia tabaci.

The above two examples remind us that the population explosion of insects (pests) are very likely determined by the number (fertilizer) nitrogen we put into the ground.

In addition to protein and amino acids, plants also provide the necessary insects other compounds, such as carbohydrates, lipids, sterols, fatty acids, vitamins, and minerals.

Some insects even the use of secondary metabolites in plants that are toxic to form the body's defense system against natural enemies. For example, cardiac glycoside compounds found in some plants, such as curassavica Asclepias (milkweed) "exploited" by the insects, one of the Butterfly King Danaus plexippus to build a defense system against predators (see article on Mimicry and Warning Coloration).

Insects also need nectar and pollen (pollen) of plants. Pollen is rich in protein, especially needed by insect females during egg formation, while the nectar is very rich in carbohydrates needed by the insects as a source of energy.

Plant as a place to live and shelter

Many insects live inside plant tissues. They can meliang in stems, fruit, or seeds (called a drill or borer), or meliang in leaf tissue (called a snorer or a miner).

Several species of arboreal termites (live on plants), make holes in the elaborate arrangement on the surface of the rod.

Some insects use the green leaves to hide from their prey espionage. Note the grouse locust leaf length (family Tettigonidae) in the following. He similar are the leaves? Grasshoppers are implementing a strategy where he alighted resemblance to the leaf (a leaf mimicking strategy) to secure itself while still eating the foliage.


Some insects have a mutualistic symbiotic relationship with plants. For example, some insect species occupying a particular body part of the plant for nesting or looking for food, while conversely, plants get a "feed" of the insect form of excretions or secretions result. One of them is called phytotelma (-ta).

Plants as a place to find prey

Predatory insects and parasitoids use plants as a place to look for food, or hide away to trap potential prey.

A praying mantis (family Mantidae) really take advantage of the green leaf to hide waiting for its prey.

Some insects, such as fruit flies, plants need the media to get certain types of bacteria (Fruit Fly Bacteria / FFB) as one of pakannya (see article on Fruit Flies).

Indirect influence of plants on insect predators or parasitoids have also learned much to reinforce the notion that the role of plants in insects are very diverse, including as a place to look for prey or hosts. Bottom-up mechanisms to facilitate the transfer of energy from plants to insects via carnivorous insect herbivores (Power, 1992). So, simply, the higher the quality plants that will improve the quality and abundance of insect herbivores that will ultimately improve the quality and abundance of insects carnivores.

Special relationship between plants and insects

Some insects have recorded a special relationship with plants. Fig wasps (family Agaonidae) is a fig-pollinating plants (family Moraceae) are getting the feed from the plant.

Some ants also recorded to form a tri-partite relationship with the plant-lice and fleas. For example, plants provide the EFN (Extrafloral nectar) which feed the ants, in addition to providing space in the plant body as a place to live lice, fleas the ant symbionts.

Thus, the relationship between insects with plants are so close it turned out to be a cornerstone of the processes that are not less complex in nature. Understanding of a whole human being on this is expected to improve while maintaining environmental quality. Hopefully.
READ MORE - Intimate relationship between insects and plants

Migration ant Eciton

Eciton is one genus of ants (Family Formicidae, subfamily Ecitoninae) commonly known as Ant Army (Army Ants). Experts life of ants attracted to recite this because this ant is one of a group of ants that are expansive in the other organisms and colonies have organized very well. In addition, the ant is famous for its uniqueness in the migration, ie forming a "nest" for the queen and her eggs are made from their own bodies (called Bivouac) during the trip. Let us follow the following description.

Eciton burchelli and E. hamate are two examples of army ants of the most widely studied. Ants underwent two phases of life, namely the phase remain in one place (statary) and mobile phase (nomadic).

Dynamics of colony

Statary phase occurs when the queen is laying eggs. Previously, the worker ants will stop and the building also provides an opportunity bivouac.Fase worker ants to care for advanced instar larvae. Then, start-up instar larvae stop eating and then spin cocoons. Statary phase lasted for 20 days in E. hamate and 21 days in E. burchelli.

Nomadic phase starts when a young worker ants emerge from the cocoon, and began to make movements that trigger Bivouac ants workers to unload and prepare for the trip. Nomadic phase lasts for 16 to 17 days in E. hamate, and 12 to 15 days in E. bruchelli.

So, statary and nomadic phase triggered by the emergence of the cocoon and new workers (young). When phase statary arrived, then the queen will also produce eggs.

Eciton ants have many forms of worker caste individuals (polymorphic) in size between 3-12 mm. In general, small-sized worker ants called a minor worker, and a great worker called major. Small worker ants usually acts as a "worker" in charge of caring for a true queen, eggs and larvae. This little ant is also in charge of feeding the major workers 'difficulties' to eat because of the large mandibulanya like sickles. Large-sized ants that is the "warrior".

Eciton ant colonies can grow very quickly, because the queen ant can lay as many as 55,000 to 66,000 eggs per week during phase statary. However, in the middle of this phase, a queen is able to produce eggs as many as 100,000 to 300,000 eggs. A considerable amount!

Wandering behavior Eciton

When entering the phase of nomadic (wandering), ant Eciton cooperation among residents showed a remarkable colony of neat. Please note, that the number of individuals in a colony of Eciton ranged from 150,000 to 700,000 workers combined with a tail of the queen.

During the wandering, larvae were taken and cared for by worker ants with caution, as well as the queen ant. Minor worker ants will tie its legs together to form a structure that protects the larvae and the queen ant, other than as a "living bridge" for them.

Eciton ants wandering speed is not high. They only travel about 100 to 200 meters per day. Nevertheless, the damage inflicted on other organisms is quite obvious.

Eciton influence on other organisms

Experts note some of the losses suffered by the organism as a result of wandering ants Eciton, for example in Polistes wasps and bees Bombus. This is presumably a mechanism of population control wasps and bees are very effective by ants Eciton.
READ MORE - Migration ant Eciton