Digital library
Textbooks, references and open learning resources.

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Fish, Fishing, and Conservation
Donald J. Orth · Virginia Tech
Fish, Fishing, and Conservation asserts that all peoples must play a role in conservation. Through case studies, engaging narrative and graphics, and exercises, the text explores major motivations for fishing and non-fishing related values, responsible fisheries practices, the rights of all people to decide how to manage and conserve fish, their habitats, and how they are utilized. For many fishes, overfishing remains a pressing global problem for which appropriate solutions are not easily found

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Monitoring Animal Populations and their Habitats: A Practitioner's Guide
Brenda McComb, Benjamin Zuckerberg, David Vesely, Christopher Jordan · Oregon State University
In the face of so many unprecedented changes occurring in our lives, our ecosystems and our globe, society is more often expecting scientists to provide information that can help guide communities toward a more sustainable future. This book is our attempt to provide a framework that managers of natural resources can use to design monitoring programs that will benefit future generations by providing the information needed to make informed decisions.

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Bending the Curve: Climate Change Solutions
Veerabhadran Ramanathan; Roger Aines; Max Auffhammer · eScholarship · 2019
Climate change is an urgent problem. Because it is causing new weather extremes and fatal catastrophes, climate change is better termed climate disruption. Bending the curve to flatten the upward trajectory of pollution emissions responsible for climate disruption is essential in order to protect billions of people from this global threat. Education is a key part of the solution. This textbook book lays out ten solutions that together can bend the curve of climate warming below dangerous levels. These solutions fall into six categories: science, societal transformation, governance, economics, technology, and ecosystem management. Four themes emerge from the book: * There is still time to bend the curve. The time to act was yesterday, but if proper actions are taken now, there is still time to avoid disastrous changes. We have to pull on three levers: The carbon lever to achieve zero net emissions of carbon dioxide before 2050; the short-lived climate pollutants lever to drastically reduce concentrations of other major climate pollutants; and the atmospheric carbon extraction lever to remove massive amounts of carbon dioxide from the atmosphere. * Bending the curve will require interdisciplinary solutions. Climate change requires integrating approaches from the natural sciences, social sciences, and humanities, so this textbook—unlike most on climate change solutions—does just that, with chapters written by experts in climate science, social justice, economics, environmental policy, political science, energy technologies, ecology, and religion. Bending the curve also requires preservation and restoration of ecological systems. * Bending the curve requires a radical shift in attitude. This shift requires change in behavior, change in our attitudes towards each other, and change in our attitude towards nature. Climate justice has to be an integral part of the solution. * Technology, market mechanism and policy need to be a part of the solution. New market mechanisms an

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Environmental Biology
Matthew Fisher · Open Oregon Educational Resources · 2018
This open textbook covers the most salient environmental issues, from a biological perspective. The text is designed for an introductory-level college science course. Topics include the fundamentals of ecology, biodiversity, pollution, climate change, food production, and human population growth.

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Understanding Organisms: An Evolutionary, Ecological and Comparative Approach
Thea Popolizio · ROTEL · 2024
Understanding organisms—their evolution, ecology and body systems— is at the heart of this free and open resource geared toward introductory-level college biology majors. This text has been adapted and curated with a lens toward representation and inclusivity. Student engagement is encouraged through ample graphics, embedded media and linked supplementary resources throughout, as well as interactive, responsive H5P practice activities.

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Human Evolutionary Demography
Oskar Burger; Ronald Lee; Rebecca Sear · Open Book Publishers · 2024
Human evolutionary demography is an emerging field blending natural science with social science. This edited volume provides a much-needed, interdisciplinary introduction to the field and highlights cutting-edge research for interested readers and researchers in demography, the evolutionary behavioural sciences, biology, and related disciplines. By bridging the boundaries between social and biological sciences, the volume stresses the importance of a unified understanding of both in order to grasp past and current demographic patterns. Demographic traits, and traits related to demographic outcomes, including fertility and mortality rates, marriage, parental care, menopause, and cooperative behavior are subject to evolutionary processes. Bringing an understanding of evolution into demography therefore incorporates valuable insights into this field; just as knowledge of demography is key to understanding evolutionary processes. By asking questions about old patterns from a new perspective, the volume—composed of contributions from established and early-career academics—demonstrates that a combination of social science research and evolutionary theory offers holistic understandings and approaches that benefit both fields. Human Evolutionary Demography introduces an emerging field in an accessible style. It is suitable for graduate courses in demography, as well as upper-level undergraduates. Its range of research is sure to be of interest to academics working on demographic topics (anthropologists, sociologists, demographers), natural scientists working on evolutionary processes, and disciplines which cross-cut natural and social science, such as evolutionary psychology, human behavioral ecology, cultural evolution, and evolutionary medicine. As an accessible introduction, it should interest readers whether or not they are currently familiar with human evolutionary demography.

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Introduction to Environmental Sciences and Sustainability
Emily Harris · University of West Florida Pressbooks · 2023
Introduction to Environmental Sciences and Sustainability is a college-level Open Educational Resource (OER) that focuses on the most relevant environmental science issues and addresses ways to incorporate sustainable practices. The text is designed for an introductory-level college science course. Topics include the fundamentals of ecology, biodiversity, pollution, climate change, food production, human population growth, and incorporating sustainable approaches in our communities, economies, and environments. This resource is targeted at environmental science students.

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Rangeland Ecosystems of the Western US
Yvette Gibson · Oregon State University
Rangeland Ecosystems of the Western US conveys fundamentals of autecology and synecology and general information about the primary ecosystems covered. Its structure will provide a framework that can be applied to understand and analyze any arid shrubland, desert, or woodland savanna.

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Introduction to Permaculture
Andrew Millison · Oregon State University · 2017
Permaculture Design is a method of land planning that can be applied at scales from the home garden to city block to village to farm. It is an ethically based whole-systems design approach that uses concepts, principles, and methods derived from ecosystems, indigenous technologies, and other time-tested practices to create sustainable human settlements and institutions. Although rooted in horticulture and agriculture, Permaculture design is interdisciplinary, touching on a wide range of subjects including regional planning, ecology, animal husbandry, appropriate technology, architecture, social justice, and international development. This open text book is derived from the content of the Massive Open Online Course “Intro to Permaculture”. The original course also included interactive mapping and design tools that accompanied this content. The course and book provide a general overview of the Permaculture design system. The book can be downloaded as a print version. However, there are many accompanying videos and content pages that are linked to throughout the text, so it is best viewed online where the links can be accessed.

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Ultrasound Physics and its Application in Medicine
Arbin Thapaliya; Alec Sithole; Michael Welsh; Gaston Dana · PALNI · 2024
Ultrasound has a wide range of medical applications. Some of these include obstetrics (monitoring the progress of pregnancy), oncology (monitoring the growth of tumors), cardiology (visualizing the heart function and physiology), biopsy (guiding needles in various procedures), and physiotherapy. For example, today, an estimated 60-70% of pregnant women in the United States undergo ultrasound examination during pregnancy. An estimated 250 million fetal ultrasound examinations are performed every year in the USA. In the last few decades, ultrasound technology has expanded to medical imaging in various other specialties: Anesthesiology, Critical Care, Emergency Medicine, General Pediatrics, Internal Medicine, Obstetrics and Gynecology (OB-GYN), Pediatric Emergency Medicine, Physiatry, Sports Medicine, and Surgery. The increasing demand in the use of ultrasound technology in various biomedical fields points to a future in which medical professionals will be required to possess a general knowledge of ultrasound technology. While currently most medical professionals rely on technicians to perform the imaging studies, there can be a high degree of operator dependent results. Therefore, a solid foundation of the technological properties of ultrasound would give health care providers a competitive advantage in the future. This is one of the first goals of this textbook. This textbook also covers general aspects of diagnostic ultrasound providing an excellent reference for both beginners and professionals. In addition, this textbook has end-of-the-chapter experiments that will help educators conduct labs for students and any other learners to enhance their learning and solidify the practical skills.

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Introducing Mathematical Biology
Alex Best · The University of Sheffield · 2023
Mathematical modelling plays an increasingly important role in almost any area of life sciences, and this interactive textbook focuses on the areas of population ecology, infectious diseases, immunology and cell dynamics, gene networks and pharmacokinetics. It is aimed at anyone who is interested in learning about how to model biological systems, including undergraduate and postgraduate mathematics students who have not studied mathematical biology before, life-sciences students with an interest in modelling, and post-16 mathematics students interested in university-level material. Some mathematical knowledge is assumed, and the mathematical models used are all in the form of ordinary differential equations.

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Sustainability: A Comprehensive Foundation
Tom Theis; Jonathan Tomkin · OpenStax CNX · 2015
With “Sustainability: A Comprehensive Foundation”, first and second-year college students are introduced to this expanding new field, comprehensively exploring the essential concepts from every branch of knowledge – including engineering and the applied arts, natural and social sciences, and the humanities. As sustainability is a multi-disciplinary area of study, the text is the product of multiple authors drawn from the diverse faculty of the University of Illinois: each chapter is written by a recognized expert in the field. This text is designed to introduce the reader to the essential concepts of sustainability. This subject is of vital importance seeking as it does to uncover the principles of the long-term welfare of all the peoples of the planet but is only peripherally served by existing college textbooks. The content is intended to be useful for both a broad-based introductory class on sustainability and as a useful supplement to specialist courses which wish to review the sustainability dimensions of their areas of study. By covering a wide range of topics with a uniformity of style, and by including glossaries, review questions, case studies, and links to further resources, the text has sufficient range to perform as the core resource for a semester course. Students who cover the material in the book will be conversant in the language and concepts of sustainability, and will be equipped for further study in sustainable planning, policy, economics, climate, ecology, infrastructure, and more. Furthermore, the modular design allows individual chapters and sections to be easily appropriated without the purchase of a whole new text. This allows educators to easily bring sustainability concepts, references, and case studies into their area of study. This appropriation works particularly well as the text is free downloadable to anyone who wishes to use it. Furthermore, readers are encouraged to work with the text. Provided there is attribution to the source, use

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Knowing Home: Braiding Indigenous Science with Western Science
Gloria Snively ; Wanosts’a7 Williams · University of Victoria · 2016
Knowing Home attempts to capture the creative vision of Indigenous scientific knowledge and technology that is derived from an ecology of a home place. The traditional wisdom component of Indigenous Science—the values and ways of decision-making—assists humans in their relationship with each other, the land and water, and all of creation. Indigenous perspectives have the potential to give insight and guidance to the kind of environmental ethics and deep understanding that we must gain as we attempt to solve the increasingly complex problems of the 21st century. Braiding Indigenous Science and Western Science is a metaphor used to establish a particular relationship. Linked by braiding, there is a certain reciprocity. Each strand remains a separate entity, but all strands come together to form the whole. When we braid Indigenous Science with Western Science we acknowledge that both ways of knowing are legitimate forms of knowledge. The book provides a window into the vast storehouse of innovations and technologies of the Indigenous peoples who live in Northwestern North America. It is our hope that the Indigenous Science examples, research and curriculum models will inspire deep reflection regarding the under-representation of Aboriginal students in the sciences. It is intended that the rich examples and cases, combined with the resources listed in the appendices, will enable teachers and students to explore Indigenous Science examples in the classroom, and in addition, support the development of curriculum projects in home places.

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Introduction to Environmental Science
Caralyn Zehnder, Kalina Manoylov, Samuel Mutiti, Christine Mutiti, Allison VandeVoort, & Donna Bennett · Georgia College and State University
In the contents: 2: Population Ecology · 2.5: Population Ecology Practice Problems

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ENVS C100: Environmental Science
Tanya Hoerer · Coastline College
In the contents: 2.5.13: The Anthrosphere Industrial Ecology and Green Chemistry · 2.5.13.01: Industrial Ecology and Industrial Ecosystems · 2.5.13.08: Green Chemistry and Industrial Ecology
![Principles of Biology II (Lab Manual) [BIS 151]](/api/files/covers/libretexts-bio-178274.jpg)
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Principles of Biology II (Lab Manual) [BIS 151]
Beth Cliffel · Triton College
In the contents: 13: Population and Community Ecology Lab

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MKBN211: Introductory Microbiology
Jaco Bezuidenhout · Northwest University
In the contents: 4.13: 9. 13- Viral Ecology

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ANTH-1: Explorations 2nd Edition
Kathryn R. Taylor · Fresno City College
In the contents: 06: Primate Ecology and Behavior · 6.02: Ecology · 19: Appendix C - Human Behavioral Ecology

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General Biology
OpenStax · LibreTexts
In the contents: 5.3.05: Ecology of Protists · 5.4.04: Ecology of Fungi · 08: Unit VIII- Ecology

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Contemporary Biology
Rachel Aptekar · Cosumnes River College
In the contents: 13.01: The Scope of Ecology · 14: Population and Community Ecology · 14.04: Community Ecology