Quantitative Ecology introduces and discusses the principles of ecology from populations to ecosystems including human populations, disease, exotic organisms, habitat fragmentation, biodiversity and global dynamics. The book also reformulates and unifies ecological equations making them more accessible to the reader and easier to teach.

We surveyed 807 researchers (494 ecologists and 313 evolutionary biologists) about their use of Questionable Research Practices (QRPs), including cherry picking statistically significant results, p hacking, and hypothesising after the results are known (HARKing). We also asked them to estimate the proportion of their colleagues that use each of these QRPs. Several of the QRPs were prevalent within the ecology and evolution research community. Across the two groups, we found 64% of surveyed researchers reported they had at least once failed to report results because they were not statistically significant (cherry picking); 42% had collected more data after inspecting whether results were statistically significant (a form of p hacking) and 51% had reported an unexpected finding as though it had been hypothesised from the start (HARKing). Such practices have been directly implicated in the low rates of reproducible results uncovered by recent large scale replication studies in psychology and other disciplines. The rates of QRPs found in this study are comparable with the rates seen in psychology, indicating that the reproducibility problems discovered in psychology are also likely to be present in ecology and evolution.

Learn about how organisms adapt to their habitats. This video is part of The Virtual School's "Adapting and Living Together" chapter within our Ecology and Environment topic.

Communities are dynamic and change over time, and we can observe this process with particular clarity after a disturbance or on new land. Learn about primary and secondary succession, as well as pioneer species. Created by Sal Khan.

An introduction to the chapter "Adapting and Living Together" within the Ecology and Environment topic of the virtual school GCSE Biology.

What is 'innate behaviour'? Where does it feature in the environment? And how does it compare to 'learned behaviour? In this Ecology GCSE / K12 video learn all of the answers to these questions.Are you a passionate teacher who would like to reach tens of thousands of learners? Get in touch: vsteam@fusion-universal.comFind out more: http://www.thevirtualschool.comThis video is distributed under a Creative Commons License: Attribution-NonCommercial-NoDerivs CC BY-NC-ND

By the end of this section, you will be able to:Describe the effects of abiotic factors on the composition of plant and animal communities in aquatic biomesCompare and contrast the characteristics of the ocean zonesSummarize the characteristics of standing water and flowing water freshwater biomes

The Ecology Student Edition book is one of ten volumes making up the Human Biology curriculum, an interdisciplinary and inquiry-based approach to the study of life science.

Tools for education, information, communication and engagement around climate change and ecological crisis.

In this class we will critically review both classical works and recent literature on complexity in ecology. The emphasis will be on developing quantitative theories in the context of experimental and observational data. We will meet twice weekly for roundtable discussions.

Flow of energy and matter through ecosystems. What happens if an ecosystem is disrupted. Video by California Academy of Sciences. Created by California Academy of Sciences.

This course provides a review of physical, chemical, ecological, and economic principles used to examine interactions between humans and the natural environment. Mass balance concepts are applied to ecology, chemical kinetics, hydrology, and transportation; energy balance concepts are applied to building design, ecology, and climate change; and economic and life cycle concepts are applied to resource evaluation and engineering design. Numerical models are used to integrate concepts and to assess environmental impacts of human activities. Problem sets involve development of MATLAB® models for particular engineering applications. Some experience with computer programming is helpful but not essential.

Readings for Writers

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By the end of this section, you will be able to:Discuss how human population growth can be exponentialExplain how humans have expanded the carrying capacity of their habitatRelate population growth and age structure to the level of economic development in different countriesDiscuss the long-term implications of unchecked human population growth

Every springtime in Antarctica Weddell seals return to Erebus Bay to give birth and raise their new pups. And every year a team of researchers and graduate students based at Montana State University returns to Antarctica to study the ecology of these iconic marine predators in this nearly pristine marine environment. This video features interviews with ecologists Robert Garrott and Jay Rotella, professors in the Ecology Department at Montana State University, and MSU graduate student Jen Mannas. Video production by Mary Lynn Price. More information at http://WeddellSealScience.com.

By the end of this section, you will be able to:Describe how ecologists measure population size and densityDescribe three different patterns of population distributionUse life tables to calculate mortality ratesDescribe the three types of survivorship curves and relate them to specific populations

This video focuses on the conifer forest in Alaska to explore the carbon cycle and how the forest responds to rising atmospheric carbon dioxide. Topics addressed in the video include wildfires, reflectivity, and the role of permafrost in the global carbon cycle.

This video describes the ecological footprint and its limitation. It goes into some depth on the computation on the footprint and what it means for the global population. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

Flow of energy and matter through ecosystems. What happens if an ecosystem is disrupted. Video by California Academy of Sciences. Created by California Academy of Sciences.