CHAPTER NATURAL VEGETATION H ave you ever been to a forest for a picnic? You might have surely gone to a park if you live in a city or to a mango‚ guava or coconut orchard‚ if you live in a village. How do you differentiate between the natural vegetation and the planted vegetation? The same variety may be found growing wild in the forest under natural conditions and the same tree may be the planted one in your garden under human supervision. Natural vegetation refers to a plant community
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Juliet C. Rosauro BSBA-MM 2-4D Loss of Biodiversity: How many species are endangered ? ENDANGERED SPECIES: has so few individual survivors that the species could soon become extinct overall or most of its natural range. Characteristics of Extinction-Prone Species: -Low reproductive rate -Specialized feeding habits -Feed at high trophic levels -Large size -Limited or specialized nesting or breeding areas -Found in only one place or region -Fixed migratory patterns -Preys on livestock
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On the Origin of Species chapter IV outlines Darwin’s proposal on how a new species is generated via natural selection over a long period of time. In Darwin’s theory of speciation‚ he proposes that all organisms within a species must express some degree of variation‚ which allow for organisms with the most advantageous variations to produce the most offspring (Darwin 10) This also means that the variations must be heritable from one generation to the next. In chapter IV Darwin uses the examples variants
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Invasive Species The invasion of non-native species is one of the United Nation’s top five environmental concerns; however the term invasive species is one which many people do not fully understand. It is a term used in the media‚ by governments and ecologists‚ to indicate to the public that a new species has entered an area‚ and usually very little is said afterwards‚ however many people do not realise the severity and long term effects of invasive species in their area and worldwide. Unfortunately
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I think that invasive species are invaders. An invasive species are living organisms that are non-native species in particular environment. In other words‚ it is an imported species that has a tendency to spread and is capable of damaging the environment‚ the human economy and human health. Some of these invasive creatures have caused the extinction of whole species and have caused irreparable damage to the surrounding ecosystem. For example‚ alien insects‚ organisms‚ plants cause damage to crops
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Colonisation and Succession in an Ecosystem 1. Ecosystem is a community of organisms which interact with their non-living environment and function as a unit. 2. Habitat is a natural environment where organisms live. Also provide shelter‚ food‚ living space‚ nesting sites and mates. 3. Species is a group of organisms that look alike and have similar characteristics‚ share the same roles in an ecosystem and are capable of interbreeding to produce fertile offspring. 4. Population is
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The Florida Everglades A Wetlands Ecosystem The Everglades‚ a vast wetlands ecosystem made up of marshes and swamps‚ begins at Lake Okeechobee‚ a large lake in the center of Florida‚ and ends in the Gulf of Mexico and Florida Bay. It is nearly 50 miles across and 110 miles long (Hinrichsen)‚ and when viewed from the air‚ appears to be miles and miles of shallow water flowing through thick mats of grass. This perception has earned it the name "River of Grass". Although it does flow like a river
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that are limiting the strength of our ecosystem. These factors have made many environments around the world very vulnerable. The main ecosystem I will focus on will be the habitats that tigers live in. More specifically I will focus on the effects that tigers have on their ecosystem and what would happen if tigers we to unfortunately go extinct. The tiger is one of the biggest components in its ecosystem besides for humans. Without tigers in their ecosystem their environment would completely fall
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What Shapes an Ecosystem? Ecosystems are made up of: * Biotic factors- all living parts of an ecosystem (plants‚ animals‚ bacteria) * Abiotic factors- all nonliving (but natural) parts of an ecosystem (soil‚ wind‚ water) These factors together (biotic and abiotic) determine which types of organisms can live in that particular ecosystem. A habitat- the place where an organism lives- includes both biotic and abiotic factors A niche includes both the habitat of an organism and its unique
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ABSTRACT An ecosystem is a very important part of our natural world. Everything relates to nature in one way or another. In turn‚ should be treated with respect and should be not tampered from its original state. With animal annihilation and extinction aside one large issue that comes to mind dealing with ecosystem imbalance is invasive species. Most invasive species do not add or diminish from there new invasive ecosystem but sometimes they can cause a devastating effect on things such as population
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