BANGLADESH INTRODUCTION by Abdul Wahab Akonda Area: 144‚054 sq.km. Population: 104‚000‚000 (1987). Bangladesh lies between latitudes 20°34 ’N and 26°38 ’N and longitudes 88°0l ’E and 92°41 ’E. It is bounded by India in the west and north‚ by India and Burma in the east‚ and by the Bay of Bengal in the south. Zoogeographically‚ Bangladesh is an interesting country lying at the junction of the Indian and Malayan sub-regions of the Indomalayan Realm. The country has a very long history of human settlement
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standing still. You will find them in many low lying areas. It is common for them to be very close to lakes‚ rivers‚ and streams. They may have water in them all the time or only during particular times of the year. Plant matter is released into freshwater biomes from a wetland biome. The importance of this is that it allows for fish to have plenty of types of food for them to survive. Florida has one of the largest wetland biomes in the world. The humid conditions are perfect for such forms of plant
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3) Overall‚ it appears that biomes with more available fresh water ________. A) tend to have less productivity than those without much freshwater B) tend to have about the same productivity as those without much freshwater C) tend to have more productivity than those without much freshwater D) don’t differentiate between freshwater as rainfall and freshwater as ice in glaciers
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Cited: 1. Covich‚ A. P.‚ Austen‚ M. C.‚ Barlocher‚ F.‚ Chauvet‚ E.‚ Cardinale‚ B. J.‚ Biles‚ C. L.‚ et al. (2004). The Role of Biodiversity in the Functioning of Freshwater and Marine Benthic Ecocsystems. BioScience ‚ 54‚ 767-775. 2. DeAngelis‚ D. L. (1980). Energy Flow‚ Nutrient Cycling‚ and Ecosystem Resilience. Ecology ‚61‚ 764-771. 3. Downing‚ A. L. (2005). Relative Effects Of Species Composition And Richness On
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1. What role does your species have in its ecosystem? Shallow mountain streams are home to the rare and shy Chinese giant salamander‚ where it has many roles within its ecosystem. It is a symbol of a healthy freshwater ecosystem that humans and other animals depend on (McNeil‚ 2010). The Chinese Giant Salamander is a key component of the food chain as both prey and predator. Salamanders eat many invertebrates‚ making sure that the rivers and streams do not become over populated (Mcneil‚ 2010). The
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Summary: In order to address the question: Does bioaccumulation of pollutants by aquatic plants increase (or decrease) by sediment bioturbation under benthic invertebrate activity? Oligochetes tubificidae‚ famous invertebrate worms‚ was used as an active ecological engineer and biotubartion source. Biological sediment reworking generated by this invertebrates activity will be quantified using luminophores‚ inert particulate and dissolved tracers. One aquatic plant species‚ Typha latifolia was set
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The Everglades national park is located in South Florida‚ it expands 1‚509‚000 acres throughout 3 Florida state counties. The wetlands elevation ranges 0-8 feet above sea level. Biotic Components Plants Saw-grass prairies (most abundant) Freshwater ponds Sloughs Swaps and marshes Animals Alligators (most dangerous predator) Florida Panther Birds‚ fish‚ snails‚ frogs and turtles Abiotic Components Warm all year with dry and wet seasons 70% of the rainfall occurs during the
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Seafarming “Things are not looking good in our oceans and seas‚ our bays and waterways‚ our rivers and streams.” This is what Meehan claimed in his essay “Seafarming at the End of the World.” For those that have never heard of this concept‚ sea farming is a form of marine cultivation where organisms are raised and grown in a particular area. Peter Meehan explores this idea due to the dramatic decrease in certain organisms such as kelp‚ shellfish‚ and oysters. Sea farming is the only proposal thus
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Running head: ILLEGAL ANIMAL TRADE IN SOUTH EAST ASIA ILLEGAL TRADE IN ANIMALS AND ANIMAL PARTS IN SOUTH EAST ASIA Abhishek Kashyap INTL 5010 Introduction to Research Methods February 29th‚ 2012
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received “their common name from their jerky movement through the water” (Clare). They are also “very small‚ usually 2-5mm long‚ with an overall shape similar to a kidney bean” (Elenbaas). Daphnia play an important role in the freshwater food chains and serve as food for other freshwater organisms such as fish. They are also commonly used to test for chemical toxicity in water. Since Daphnia have transparent body‚ it is easier to observe their heart rates‚ and other visceral organ systems. Its small heart
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