Cover: Achieve for Ecology: The Economy of Nature 10e with Evolution 4e (1-Term Access), 10th Edition by Rick Relyea; Douglas Emlen; Carl Zimmer

Achieve for Ecology: The Economy of Nature 10e with Evolution 4e (1-Term Access)

Tenth Edition  ©2026 Rick Relyea; Douglas Emlen; Carl Zimmer Formats: Achieve

Authors

  • Headshot of Rick Relyea

    Rick Relyea

    Rick Relyea  is the William J. Rucker Professor in Fisheries and Wildlife at the University of Missouri–Columbia (Mizzou). He received a BS in environmental forest biology from the SUNY College of Environmental Science and Forestry, an MS in wildlife management from Texas Tech University, and a PhD in ecology and evolution from the University of Michigan. He has authored more than 200 scientific articles and presented research seminars throughout the world. Dr. Relyea was a professor at the University of Pittsburgh for 15 years, where he was named the Chancellor’s Distinguished Researcher and received the Tina and David Bellet Teaching Excellence Award. In 2014, he moved to Rensselaer Polytechnic Institute to direct the Darrin Fresh Water Institute. In 2025, Rick moved to Mizzou to be the founding director of the Johnny Morris Institute of Fisheries, Wetlands, and Aquatic Systems. Rick has a strong interest in high school education, including hosting high school science teachers who conduct research in his laboratory. He is the author of the college textbook Ecology: The Economy of Nature, and co-author of Environmental Science for the AP® Course, which is also published by BFW publishers.


  • Headshot of Douglas Emlen

    Douglas Emlen

    Douglas J. Emlen is a professor at the University of Montana. He is a fellow of the American Academy of Arts and Sciences, a member of the National Academy of Sciences, and a recipient of the U.S. Pres- idential Early Career Award for Scientists and Engineers. In 2014 he was awarded UM’s Distinguished Teaching Award and in 2015 the Carnegie/CASE Professor of the Year Award for the state of Montana. His 2014 book Animal Weapons: The Evolution of Battle won the Phi Beta Kappa Award in Science, and he recently starred in documenta- ries about his work on BBC (Nature’s Wildest Weapons) and NOVA (Extreme Animal Weapons).


  • Headshot of Carl Zimmer

    Carl Zimmer

    Carl Zimmer is one of the country’s leading science writers. A colum- nist for the New York Times, he is the author of 15 books, including She Has Her Mother’s Laugh: The Powers, Perversions, and Poten- tials of Heredity, which The Guardian named the best science book of 2018. Zimmer is professor adjunct at Yale University, where he teaches science writing. Among his many honors, Zimmer has won the Stephen Jay Gould Prize, awarded by the Society for the Study of Evolution, and the National Association of Biology Teachers Distinguished Service Award.

Table of Contents

Relyea, Economy of Nature 10e

1 An Introduction to Ecology

Part I: Climates, Climate Change, and Biomes

2 Global Climates

3 Global Climate Change

4 Terrestrial and Aquatic Biomes

Part II: Adaptations to Environments

5 Evolutionary Ecology

6 Adaptations to Aquatic Environments

7 Adaptations to Terrestrial Environments

8 Adaptations to Variable Environments

Part III: Life Histories, Reproductive Strategies, and Social Behaviors

9 Life Histories

10 Reproductive Strategies

11 Social Behaviors

Part IV: Populations

12 Population Distributions

13 Population Growth and Regulation

14 Population Dynamics over Time and Space

Part V: Species Interactions

15 Predation and Herbivory

16 Parasitism and Infectious Diseases

17 Competition

18 Mutualism

Part VI: Communities and Ecosystems

19 Community Structure: Biodiversity and Food Webs

20 Community Succession

21 Energy Flow in Ecosystems

22 Nutrient Cycling in Ecosystems

Part VII: Global Ecology

23 Landscape Ecology and Global Biodiversity

24 Conservation of Global Biodiversity

Emlen, Evolution 4e

1 The Whale and the Virus: How Scientists Study Evolution

2 From Natural Philosophy to Darwin: A Brief History of Evolutionary Ideas 

3 What the Rocks Say: How Geology and Paleontology Reveal the History of Life 

4 The Tree of Life: How Biologists Use Phylogeny to Reconstruct the Deep Past 

5 Raw Material: Heritable Variation Among Individuals 

6 The Ways of Change: Drift and Selection

7 Beyond Alleles: Quantitative Genetics and the Evolution of Phenotypes

8 The History in Our Genes 

9 From Genes to Traits: The Evolution of Genetic Networks and Development

10 Natural Selection: Empirical Studies in the Wild

11 Sex: Causes and Consequences 

12 After Conception: The Evolution of Life History and Parental Care 

13 The Origin of Species 

14 Macroevolution: The Long Run 

15 Intimate Partnerships: How Species Adapt to Each Other 

16 Brains and Behavior 

17 Human Evolution: A New Kind of Ape 

18 Evolutionary Medicine 

Product Updates

Relyea Updates
The Tenth Edition of Ecology: The Economy of Nature offers foundational updates that reflect ongoing shifts in climate science, research diversity, and ecological pedagogy. Key changes include the addition of two stand-alone chapters—Global Climates (Chapter 2) and Global Climate Change (Chapter 3)—to provide essential context for the global change themes woven throughout the rest of the book.

Content has been updated to emphasize diverse voices in the field, featuring new studies from underrepresented groups in STEM and more photos of scientists to showcase a broad range of ecologists in action. In addition, a new focus on the integration of Indigenous ecological knowledge highlights the long-term, place-based insights that are shaping contemporary research. These updates aim to give students a more inclusive and comprehensive view of ecological science.

  • New Working with Ecological Data: Calculating Climate Anomalies. Students use real data to plot temperature anomalies over time and evaluate if presenting data in this fashion helps communicate how climate is changing (Chapter 3).
  • New Ecology Today: Embracing Indigenous Knowledge and “Two-Eyed Seeing” to Understand Climate Change. Description of the research effort to understand changes to Alaskan ecosystems as informed by Indigenous knowledge, which provides a longer time horizon than otherwise available to Western science (Chapter 3).
  • New Ecological Problem-Solving: The Melting Polar Ice Cap. Students plot and evaluate the most current data on ice loss in the Arctic (Chapter 3).

Emlen updates

The Fourth Edition of Evolution: Making Sense of Life reflects the latest scientific discoveries and pedagogical improvements across evolutionary biology. Updates include restructured content for improved clarity, revised illustrations, integration of recent research studies, and expanded discussions of key concepts. Significant changes span genomic analysis, fossil evidence, disease evolution, and behavioral ecology, ensuring students engage with the most current and relevant content in the field.

Updated Study and Assessment Tools:

  • Updated Adaptive Quizzes
  • All assessments are now tagged with learning objectives
  • Updated Homework
  • New Writing-to-Learn Activities utilize short-form writing and AI-enabled grading
  • Updated Videos and paired assessment
  • New functionality built-into the multi-take setting

New Instructor Resources:

  • New Active Lecture Slides
  • Updated Test Bank (10 new questions per chapter)

Chapter-by-Chapter Highlights:

  • Ch. 1: New SARS-CoV-2 case replaces influenza; expanded comparisons between whales and viruses; added content on cetacean evolution and thick skin adaptation in whales and hippos.
  • Ch. 2: New key concept added regarding Darwin’s voyages.
  • Ch. 3: Heavily revised; includes fossil dating techniques, pigment and soft tissue fossils, and new findings like 890-million-year-old sponges.
  • Ch. 4: New content on phylogenies, lobe-fin and tetrapod fossils (updated Fig 4.22), and mammalian ear evolution.
  • Ch. 5: Updated discussion of Joel Hirschhorn’s height genetics research.
  • Ch. 6: New example of natural selection drawn from Becca Love’s mosquito research.
  • Ch. 7: Added GWA study by Hopi Hoekstra on color change in mice.
  • Ch. 8: Updated Homo sapiens evolution; new genomic comparison techniques (dN/dS and sliding windows); new material on mobile genetic elements and supergenes.
  • Ch. 9: New section on limb patterning modules in vertebrates.
  • Ch. 10: New example of rapid evolution in elephants due to poaching; updates to finch research.
  • Ch. 11: Streamlined illustrations and added coverage of mating in sea lions.
  • Ch. 12: New opening section on orca longevity.
  • Ch. 13: New figure and example on “magic traits” using Timema stick insects.
  • Ch. 14: Revised opening on mass extinctions; new content on marsupial dispersal, stasis periods, and updated extinction statistics.
  • Ch. 15: New Box 15.1 on CRISPR-Cas system evolution in bacteria.
  • Ch. 16: Expanded discussion on animal cognition, supergenes, and vocal learning research by Erich Jarvis.
  • Ch. 17: Heavily rewritten for clarity and updated content.
  • Ch. 18: Major overhaul; new coverage of SARS-CoV-2 virus evolution, variants, infection mechanisms, vaccine development, and adaptive cancer therapies; multiple new figures added.

Ecology + Evolution: One Course. One Platform. Smarter Learning.

Designed for courses that bridge the natural connection between ecology and evolution, this Achieve edition brings together two leading texts—Ecology: The Economy of Nature by Relyea and Evolution: Making Sense of Life by Emlen and Zimmer—into one cohesive learning experience. Students explore foundational ecological concepts while discovering how evolutionary processes shape life on Earth, all through a unified lens.

Interactive features, real-world examples, and engaging narratives help students connect scientific principles to contemporary issues, from poaching’s impact on elephant evolution to ecological modeling of species interactions. Critical thinking is encouraged at every turn, whether students are analyzing data, interpreting figures, or applying evolutionary theory to ecological case studies.

Achieve supports instructors with auto-graded assessments, visual and quantitative tools, and powerful reporting features—making it easier to guide students toward meaningful understanding in both disciplines.

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