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Ecology

Interesting Facts about Termites

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One of the interesting facts about termites is that people often refer to termites are as the silent destroyer. The reason is that they could be hidden somewhere and thriving with no instant indications of damage. Common places in the house where they hide and grow are the basement and attic.

Though species of termites thrive in diverse climates and has diverse sorts of food, all of the termites require some basic things for surviving. They are moisture, shelter, food, and favorable temperature

The sad fact is that all homes, notwithstanding their style, can deliver these supreme conditions for termite invasion.

Termites and your home

Do you have problems with termites? You most probably are not sure. Numerous homeowners are unaware of these pests lurking as they mostly reside hidden below the ground or inside the walls in your home. With an infestation being so hard to identify, termites ensue home damage worth over an average of $5 billion in a year.

Are you wondering the way of protecting your home against these unseen invaders? Follow the tips that are given below and problems with termites will be history.

Termites are inclined to be more dynamic in warmer temperatures since they work for storing food for use during the winter time. Nevertheless, in the parts of the country that have a warm climate, they pose a year-round menace. The southern states and the states with warmer climates have more species.

Though they could be devious they leave warning indications. Pointers of a termite infestation consist of

  • Wood that has a hollow sound on being tapped
  • Paint that has cracked or has bubbles
  • The presence of mud tubes on external walls or crawl areas
  • A transitory swarm of flying insects about your home

Though treatment of termites is best left at the hands of a specialist, simple steps can be taken for protecting your home.

  • Try to maintain downspouts and gutters free of rubbles
  • Set up screens on external vents
  • Stock up firewood and timber at a distance from your residence
  • Do away with moisture by mending pipes and more home fixtures that are susceptible to leaks.

Species and cast system of termites

Roughly 45 species are present in the USA. There are over 2,300 species all over the world and this is one of the amazing facts about termites. They are community insects that reside in colonies and have caste systems. More specifically, termites are structured into diverse social classes on the basis of their responsibilities. This caste system is made up of three levels, which are reproductives, workers & soldiers. Soldier and worker termites cannot see. The fully mature termites are the reproductive termites. Only they develop eyes.

Communication, nests, food, and predator of termites

With termites living in dark areas and many being blind, they communicate via pheromones and vibrations. The nests of termites are the largest of all insects. Termites don’t “consume” wood. They digest cellulose with the single-celled organisms present in their guts. The main predator of termites is ants. They can raid colonies or workers seeking food.

One of the crucial facts about termites is that they have survived 250 million years. Their survival is attributable partly to the “royal taster system” of the queen. In this system, the workers of the colony taste & process every food prior to the queen having it.

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Ecology

Ecological Disharmony And Its Biggest Consequences

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Ecology is basically the study of relations of various organisms inhabiting an ecosystem with each other as well as with the surrounding environment. Ecological balance is nothing but maintaining a state of equilibrium between all living components of a particular ecosystem so that all can co-exist together. So, balance in the ecosystem is of supreme importance for the survival, stability, and existence of the environment. On the other hand, ecological disharmony is when a human-caused or natural disturbance ends up disrupting the ecosystem’s natural balance.

Devastating consequences of ecological imbalance

Acid rain, deforestation, greenhouse effect, radioactive fallout, urbanization, industrialization, marine, and air pollution, changing hydrology, animal and plant breeding, usage of pesticides, overgrazing, mining activities, and forest fires are the main causes of disharmony in the ecosystem. Because of such unevenness living organisms and the environment are bound to face disastrous consequences.

Here are some deep impacts of imbalanced ecosystems and polluted environment:

Health problems in human beings

Polluted water, land, and air generate multiple harmful biological and chemical agents that impact human health in negative ways. The plagues that killed thousands in the Middle Ages resulted from contaminated human waste spread by rats. No country can claim to be complete immunity against outbreaks of diseases that are transmitted environmentally. The outbreak of Severe Acute Respiratory Syndrome (SARS) in several countries in 2003 validates this statement.

Depletion of genetic resources

The genetic material present in the domesticated plants, livestock, trees, microorganisms and aquatic animals is important for the breeding programmes which achieve continued improvements in flavor, yield, durability, nutritional quality, disease and pest resistance and several other qualities. Due to intensive selection for uniformity and high performance, the genetic base of food product at present times has grown depressingly low.

Soil degradation

If we want the soil of particular area to remain fertile, we have to protect it from degradation. Soil degradation occurs due to acidification, water-logging, improper use of land, salinisation, chemical degradation, and soil erosion. Erosion takes place both because of human activities and natural conditions.

Desertification

The word ‘desert’ is an umbrella term encompassing four types of environmental complexes:

  • Rainless deserts (places with almost no rainfall)
  • Rainfall deserts (places that receive rainfall, but not sufficient for production of crops)
  • Run-off deserts (regions where the yearly rainfall is variable and low)
  • Man-made deserts (semi-arid regions that have turned into deserts because of man’s negligence and exploitation)

The two main causes of desertification are over-exploitation by humans of drylands and recurrent droughts.

Depletion of the Ozone Layer

The ozone layer is the protective layer of the earth that protects the earth from dangerous UV radiation. The depletion of the ozone layer is one of the severe consequences of ecological disharmony. It has direct impacts on human health and the environment.

Food contamination

Chemical contaminants often reach livestock and food from various sources. When we use pesticides to protect agricultural crops from pests, they contaminate the crops. Growth boosters given to animals and veterinary drugs contain chemicals that pass into dairy products and meat. Packaged food should be avoided as they contain food preservatives such as sodium nitrate and other chemicals. Even industrial effluents and industrial chemicals contaminate plants

Global warming

Carbon dioxide is responsible for warming the air in the atmosphere’s lower levels, a phenomenon called the “greenhouse effect”. The ozone layer and water vapor present in the air also help to keep the earth warm by absorbing the infrared radiation. This is the reason why the temperature of the world has been increasing gradually, resulting in a reduction of glaciers. Global warming is also responsible for changes in climate and if not stop will melt polar ice caps, submerging the low lying coastal cities underwater.

Conclusion

We may conclude by saying that man plays a dominating role in maintaining ecological balance and creating ecological disharmony because of his thinking capacity as opposed to other living things inhabiting the planet. Therefore, we humans need to contribute positively to the maintenance of ecological balance. It is our responsibility to make sure that all living things live in harmony with each other for the sake of ecological stability. We can do this by planting more trees, conserving the natural habitat of wild animals, reducing the emission of harmful gases and checking air, water, and land pollution.

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Ecology

Ecological Imbalance: Major Causes Behind It

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The stability of the earth’s ecosystem depends on the balance between the consumption and production of every single element in the ecosystem. Ecological imbalance or instability is a state in which an ecosystem fails to adjust to the changes in the environment. This type of situation arises when the changes are enormous and they exceed the capacity or resilience of the ecosystem.

Causative agents for ecological imbalance:

The major factor responsible for an imbalance in the existing ecosystem of the earth is the dominance of human beings in the global ecosystem. Man’s selfish and thoughtless ways to exploit the resources of the planet for satisfying his greed is the root cause of this diversion. Here are the main causes of imbalance in the ecosystem:

Changing Hydrology

When rainwater is utilized for irrigation, water flows as a slow pace in the river and water quality downstream also declines. Construction of large reservoirs for power generation and irrigation also alter the ecosystem of the place. Irrigation also increases the contents of water vapor in the locality.

Use of Pesticides

When we apply pesticides on plants to protect them from plants, pesticides do not just contaminate the plant but also pollute surface and ground waters. So, the use of pesticides has adverse effects on the environment, creating ecological imbalance.

Green House Effect

Increasing the concentration of carbon dioxide in the earth’s atmosphere is a big concern for environmentalists. The direct negative effect of this is the increased temperature of the earth’s surface, commonly known as ‘global warming’. If we do not take stern measures to reduce the emission of carbon dioxide, the consequences will be disastrous. There will be a drastic change in the climate in several places resulting in the melting of polar ice caps and submerging low-lying coastal cities (such as Chennai, London, and New York) under the oceans.

Acid Rain

Acid rain, that is rainwater laden with acids, is the main reason behind air pollution. When we burn fossil fuels, large amounts of nitrogen oxides and sulfur dioxide are released into the air. These oxides, after coming in contact with water vapor, produce nitric acid and sulphuric acid which come back to the surface of the earth when it rains. Acid rain is a great threat to the world’s ecological balance, harming plants and animals.

Overgrazing

Ecosystem instability and environmental degradation that arise from overgrazing are mostly seen in semi-arid and arid regions of Central Asia, the Mediterranean basin and near-Eastern countries. The aftermath of this is desertification.

Deforestation

The clearance of forest cover is again a primary contributory factor in the disturbance of the ecology of our planet. Man has cut down forests to establish croplands, residential areas, and grasslands. In addition to this, forests are also targeted for fuel-wood and timber.

Forest fires

Repeated, natural forest fires that burn thousands of trees overnight cause severe harm to the ecosystem and are responsible for the degradation of the environment.

Industrialization

Industrialization is important to cater to the basic comforts and necessities of life for our increasing population. But, improperly planned and executed industrialization has resulted in acute ecological imbalance and environmental pollution worldwide.

Mining Activities

The process of extracting minerals and processing them has a long-lasting ecological impact on the atmosphere, land, water and also the socio-economic environment of the people living there. One direct outcome of mining on the topography is surface disturbances. Reclamation of uneven, disturbed land due to mining wastes can rectify the environmental damage to a certain extent. Excessive surface mining has resulted in fragile ecosystems in several places.

Urbanization

Rapid urbanization gives birth to several environmental, health, and socio-economic problems. For instance, a slum settlement in towns and cities is clearly an outcome of unplanned urbanization that fails to provide housing facilities to all citizens. People, when unable to find a proper dwelling place, end up occupying any vacant land in the outskirts of a city and start living in a haphazard manner without civic facilities such as drainage, roads, water supply, electricity, and transport. Slum expansion destroys the natural ecosystems that surround the cities.

Conclusion

So, the basic causes of disharmony in the ecosystem and environmental pollution are urbanization, motorization, and industrialization. Human beings are accountable for the degradation of the quality of the environment and we require steady measures to bring back harmony into the ecosystem.

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Ecology

Coral Reefs: Value of Corals

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Coral Reefs, known as the “rainforests of the sea”, are among the most productive and biodiverse ecosystems on our planet. They do not occupy more than one percent of the floor of the ocean, and yet are home to at least a quarter of the entire marine population, including various species of reptiles, bacteria, fungi, crustaceans, and 4000 or more varieties of fish.

Three basic types of coral reefs:

  • Fringing Reef
  • Barrier Reef
  • Atoll Reef

Where can we find coral reefs?

Coral reefs are situated in tropical oceans of the earth that are near the equator. The Great Barrier Reef, located in Australia, is the world’s largest coral reef. The second biggest coral reef is in Central America’s Belize. Reefs are also present in the Red Sea, Hawaii, and other regions in tropical oceans.

How valuable are corals?

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Healthy corals are not just biologically diverse but also economically valuable resources of the earth. Coral ecosystems provide food to millions of organisms (including humans), offer spawning grounds and habitat to fish species, protect coastlines from erosion and storms, and also provide a livelihood to locals from recreation, tourism, and fishing.

Gifts of coral reefs to mankind:

Biodiversity- Coral reefs are important nursery, spawning, feeding and breeding grounds for multiple organisms. Speaking of biodiversity, the rich variety of living organisms residing on a coral reef is actually greater than the diversity of species inhabiting shallow-water ecosystems. Yet corals do not occupy even one percent of the planet’s ocean floor. They support at least 800 coral species and 4000 exotic species of fish.

Fisheries- More than one billion people from all over the world consume fish that live and grow on coral reefs. There are also many species of fish that reside far away from corals but derive food from them. Fifty percent of America’s federally handled fisheries rely on coral reefs and its related habitats to a great extent. The yearly commercial value of fisheries in US that come from coral reefs reaches up to $100 million. Coral reefs fisheries situated in South East Asia also generate $2.4 billion every year.

Coastal protection- Coral reefs that are healthy have complex structures and rough surfaces that dissipate the force of waves. This gives protection to the shorelines from waves, storms, and ocean currents, preventing loss of life, erosion and major damages to property. So, coastlines that receive protection from reefs are stable and they are also a source of rich sand in the beaches.

Medicine- Many species that inhabit coral reefs produce specific chemical compounds necessary for attack or defense, particularly the stationary or slow-moving species such as sponges and nudibranchs. So, creatures that are found in the coral ecosystems are valuable sources of novel medicines being discovered to ease and induce labor, treat arthritis, cancer, ulcers, heart diseases, asthma, bacterial infections, viruses, and several other ailments. Corals are also a source of cosmetics, enzymes and nutritional supplements. In the years to come, more medicines will be developed from coral reefs if we can succeed in protecting and preserving them.

Recreation and tourism- Millions of snorkelers and scuba divers visit the coral reefs every year to enjoy rich sea life. Beaches that are protected by coral reefs are more crowded than the ones that are not. So, local economies earn billions of dollars from these visitors who participate in fishing trips and diving tours as well as facilitate the businesses, restaurants, and hotels located nearby.

Losing Coral Reefs: A Potential Threat

According to a report published by the World Resource Institute, named ‘Reefs at Risk Revisited, 75 percent of the coral reefs of the world are at great risks from global and local stresses. About a quarter of these valuable reefs has been ruined beyond repair. Overfishing along with harmful fishing techniques like usage of cyanide and explosives and deep water trawling are among the most destructive threats to the coral reefs.

Pollution from the land, such as releases from several power plants, trash, oil spills, and pathogens also endanger the existence of corals. Even plastic pollution is responsible for killing corals.  If humans do not take major steps to protect the coral reefs, 90 percent of them will be damaged in the next ten years.

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