8.2 A Local Ecosystem 1. The distribution‚ diversity and numbers of plants and animals found in ecosystems are determined by biotic and abiotic factors Students Learn to: * Compare the abiotic characteristics of aquatic and terrestrial environments The impact of abiotic characteristics on environments Abiotic Characteristic | Differences | Similarities | | Aquatic | Terrestrial | | Temperature | * Small‚ gradual changes occur | * Large variations may occur | * Temperature
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Interactions and Interrelationships among the Different Components of the Ecosystem I. Introduction Ecology is the study of environmental systems‚ or as it is sometimes called‚ the economy of nature (Hall and Weiss‚ 2010). It studies interactions between different organisms and their environments‚ including relations within its own species and members of others. Ecology focuses more on the population‚ community‚ and ecosystem ecology although it also includes a wide variety of fields. Both
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Biology IB Study Guide 1: Communities and Ecosystems 5.1 Communities and Ecosystems (Core) 5. 1. 1 Define species‚ habitat‚ population‚ community‚ ecosystem‚ and ecology. Species – A species is a group of organisms with similar characteristics‚ which can interbreed and produce viable‚ fertile offspring. Habitat – A habitat is the environment in which a species normally lives or the location of a living organism. Population – A population is a group of organisms of the same species‚ who
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The Effects of Motor Oil in A Controlled Freshwater Jar Ecosystem Introduction: “An ecosystem is an environment where plants‚ animals‚ and micro-organisms all interact and reside together in a setting” (Simon‚ Reece‚ and Dickey‚ 2010). There are two main types of aquatic ecosystems‚ freshwater and marine. The main difference between them is that marine ecosystems contain salt‚ which causes them to be undrinkable without substantial alterations. Freshwater systems contain nearly no
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Mikhail Kashtelyan The Consequences of a global temperature rise on arctic ecosystems Nowadays the climate is changing‚ in more exact words the global temperature is raising every year. Those climate changes may cause a lot of different disasters and brake of ecosystems. A place that is really endangered of global temperature rise is arctic. Arctic is a very big icy landmass that is located north of the Arctic Circle. Arctic contains a lot of different kind of species. If the icy landmass
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Investigating the Control Dynamics of an Algae-Brine Shrimp Ecosystem 113437768 Introduction The purpose of this lab is to investigate whether an ecosystem consisting of marine algae and brine shrimp are controlled by top-down or bottom-up mechanisms. The terms top-down and bottom-up in the context of ecology describe which trophic levels are enforcing population pressures on the others. Thus‚ the top-down mechanism of control holds that consumers are responsible for determining the abundance of
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Perceptions on Climate Change and its Impacts on Ecosystem Services in Kilimanjaro‚ Tanzania and Taita‚ Kenya: Implications for Policy Actions Simeon P.L. Shimbe1‚ Reuben M.J. Kadigi1‚ Japhet J. Kashaigili1‚ Jumanne M. Abdallah1 and Charles Stephen1 1Sokoine University of Agriculture‚ Morogoro‚ Tanzania Corresponding Author: Simeon P.L. Shimbe‚ Department of Agricultural economics and Agribusiness‚ Sokoine University of Agriculture‚ P.O. BOX 3007 Chuo Kikuu‚ Morogoro‚ Tanzania‚ E-mail: spshimbe@yahoo
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There are many factors that account for the changes to the vegetation over time within ecosystems in the British Isles‚ such as human activity‚ climate‚ soil‚ light availability and intensity and natural disasters. The characteristics of the vegetation that are influenced by these factors are height‚ distribution‚ variety of species‚ adaptations and density of the vegetation. Some of these factors have relatively little influence on the succession development‚ whereas others have a dramatic influence
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Discuss the relative importance of physical and human factors in accounting for changes to vegetation over time within ecosystems in the British Isles (40 marks) The British Isles can be found in the Northern Hemisphere where deciduous forest is the main biome. Here physical and human factors have accounted for changes to the vegetation for many years. Human factors can include tourism‚ agriculture‚ urbanisation‚ interception and deforestation. Physical factors can be such things as natural disasters
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List the organisms that can be found in your ecosystem. Label Major organisms that live in your selected ecosystem: P for producers; C for consumers and D for decomposers. Beetles - Decomposer Cougar - Consumer Coyote - Consumer Creosote Bush - Producer Desert Big Horn Sheep - Consumer Desert Horned Lizard - Consumer Desert Iguana - Consumer Desert Rose - Producer Desert Tortoise - Consumer Earthworm - Decomposer Flowering Yucca - Producer Fly - Decomposer Gila Monster - Consumer Gopher Snake -
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