{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Ecology Exam 1 Study Guide

Ecology Exam 1 Study Guide - Dono Tippett Ecology Exam 1...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Dono Tippett 9-15-10 Ecology Exam 1 Study Guide Chapter 1 (Pages 1-9) (Figures 1.1-1.8) - Ecology : the study of relationships between organisms and the environment. -has been a focus for human study for as long as we have existed. -Hunters and gatherers: habits of their animal prey and where to find food plants. -Agriculturalists: variation in weather and soils and how such variation might affect crops and livestock. -Ecologists may study individual organisms, entire forests or lakes, or even the whole earth. -Ecologists often spend as much time studying nonbiological components of the environment as the spend studying organisms -Advances in ecology have come from theoretical models or ecological research in the laboratory. Overview of Ecology -Discipline of ecology addresses environmental relationships ranging from those of individual organisms to factors influencing global-scale processes. -ecology of individuals has been the domain of physiological ecology and behavioral ecology. -Physiological ecologists have emphasized the evolution (a process by which populations change over time) of physiological and anatomical mechanisms by which organisms solve problems posed by physical and chemical variation in the environment. -Behavioral ecologists: focused on evolution of behaviors that allow animals to survive and reproduce in the face of environmental variation.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
-Population ecologists: adaptation, extinction, the distribution and abundance of species, population growth and regulation, and variation in the reproductive ecology of species. -biological components of environment take us to ecology of interactions such as predation, parasitism, and competition. *Figure 1.1 Levels of ecological organization* (Page 2) -other approaches to ecology explore the effect of interactions on population structure or on properties of ecological communities. -ecological community is defined as an association of interacting species that links community ecology with the ecology of interaction. -Community and ecosystem ecology both are concerned with the factors controlling multispecies systems. -objects of their study differ: -Community ecologists focus on organisms inhabiting an area, ecosystem ecologist include the physical and chemical factors influencing the community and focus on processes such as energy flow and decomposition. -all communities and ecosystems on earth are open systems subject to exchanges of materials, energy, and organisms with other communities and ecosystems. -Geographical ecology - Biosphere: The portions of earth that support life; largest special scale and highest level of ecological organization, falls within the realm of global ecology The Ecology of Forest Birds: Old Tools and New -Robert MacArthur- observed the warbler bird, interested in testing ecological theory -1955: MacArthur studying 5 species of warblers in spruce forests of northeastern North America.
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern