Ecology-PPT.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,Ecology,c e s t la vie,The definition of ecology,Ecology,is the,scientific,study of the relations that living,organisms,have with respect to each other and their,natural environment,.,Variables,of interest to ecologists include the composition,distribution,amount(,biomass,),number,and changing states of organisms within and among,ecosystems,.,Modern ecology,Modern ecology branched out of natural history and matured into a more rigorous,science,in the late 19th century.Charles Darwins,evolutionary,treatise including the concept of adaptation,as it was introduced in 1859,is a pivotal cornerstone in modern,ecological theory,An understanding of how biodiversity,affects ecological function is an important focus area in ecological studies.Ecologists seek to explain:,Life processes and,adaptations,Distribution and abundance of,organisms,The movement of materials and,energy,through living communities,The succession development of ecosystems,and,The,abundance,and distribution of,biodiversity,in context of the,environment,.,Human ecology,is the,interdisciplinary,investigation into the ecology of our species.Human ecology may be defined,(1)from a bio-ecological standpoint as the study of man as the ecological dominant in plant and animal communities and systems;,(2)from a bio-ecological standpoint as simply another animal affecting and being affected by his physical environment;,(3)as a human being,somehow different from animal life in general,interacting with physical and modified environments in a distinctive and creative way.,Some pictures about ecology,.The diversity of life is organized into different,habitats,from,terrestrial,(middle)to,aquatic ecosystems,.,.,Symbiosis:,Leafhoppers,(are protected by,ants,)in a,symbiotic,relationship.The ants protect the leafhoppers from predators and in return the leafhoppers feeding on plants exude honeydew from their anus that provides energy and nutrients to tending ants.,.,Biodiversity of a,coral reef,.,Corals,adapt and modify their environment by forming,calcium carbonate,skeletons that provide growing conditions for future generations and form habitat for many other species.,Some behaviors,to destroy,ecology.,Thank you!,