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Freshwater Food Chains

Author : Rebecca Pettiford

Publisher : Pogo

Page : 0 pages

File Size : 41,40 MB

Release : 2016

Category : Juvenile Nonfiction

ISBN : 9781620315750

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Book Description

"In Freshwater Food Chains, early fluent readers explore the freshwater biome and the food chains it supports. Vibrant, full-color photos and carefully leveled text engage young readers as they explore how energy flows through plants and animals in freshwater rivers and lakes. A map helps readers identify major rivers and lakes of the world, and an activity offers kids an opportunity to extend discovery. Children can learn more about freshwater food chains using our safe search engine that provides relevant, age-appropriate websites. Freshwater Food Chains also features reading tips for teachers and parents, a table of contents, a glossary, and an index. Freshwater Food Chains is part of Jump!'s Who Eats What? series."



Freshwater Feeders

Author : Gwendolyn Hooks

Publisher :

Page : 0 pages

File Size : 16,26 MB

Release : 2008-08

Category :

ISBN : 9781606949146

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Book Description

The Question Of Who Eats What In A Freshwater Habitat Is Answered In This Book About Food Webs.



Complex Interactions in Lake Communities

Author : Stephen R. Carpenter

Publisher : Springer Science & Business Media

Page : 287 pages

File Size : 31,52 MB

Release : 2012-12-06

Category : Science

ISBN : 1461238382

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Book Description

In its statutory authority (National Science Foundation Act of 1950, as amended), the NSF is directed to both initiate and support basic scientific research. In its Ecology Program, one mode of initiating research is to en courage the development of new ideas through advisory workshops. The NSF is specifically directed to strengthen our nation's research potential. In addition, stimulating new approaches to research will continue to be prominent in the coming years as federal attention is given to increasing the innovativeness and competitiveness of the U. S. in science and engineering. A decision to initiate a workshop does not arise de novo in the Ecology Program. Rather, it emerges from panel discussions, conversations with in vestigators at meetings or on the phone, and from discussions between pro gram officers in the Division of Biotic Systems and Resources. This workshop was developed to provide advice to the NSF and the lim nological community. Some NSF perceptions on future funding for ecolog ical research on lake communities are presented here. Researchers often mentioned a paucity of innovative lake ecology at the community level. This perception was accompanied by a certain frustration since lakes probably have the best empirical data base of any natural environment and should continue to lead in the development of ecological concepts. Members of NSF advisory panels sometimes expressed similar concerns during consid eration of proposals for lake research.



A Freshwater Food Web

Author : Cari Meister

Publisher : Amicus Illustrated

Page : 0 pages

File Size : 27,28 MB

Release : 2020-07-15

Category : Food chains (Ecology)

ISBN : 9781681526430

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Book Description

Take an illustrated narrative nonfiction journey to a wetland in the northern United States and discover how animals and plants in a freshwater ecosystem survive in an interconnected food web. Splash! The wetland is home to many water-loving animals. Ducks and frogs munch on bugs and plants, while a heron and snake lurk in the reeds. All animals keep an eye out for the top predator: the bald eagle! Vibrant artwork illustrates the link between producers, consumers, and apex predators while carefully leveled text weaves a cohesive story that explains the importance of each element in the ecosystem. A food web model summarizes the information, making this an excellent resource for Next Generation Science Standards (NGSS) in elementary grades. Perfect for animal lovers, nature enthusiasts, and budding science buffs.



Food Webs at the Landscape Level

Author : Gary A. Polis

Publisher : University of Chicago Press

Page : 566 pages

File Size : 15,41 MB

Release : 2004-02-22

Category : Science

ISBN : 0226673278

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Book Description

Paying special attention to the fertile boundaries between terrestrial, freshwater, and marine ecosystems, this work shows not only what this new methodology means for ecology, conservation, and agriculture but also serves as a fitting tribute to Gary Polis and his major contributions to the field



Lipids in Freshwater Ecosystems

Author : Michael T. Arts

Publisher : Springer Science & Business Media

Page : 333 pages

File Size : 48,80 MB

Release : 2012-12-06

Category : Science

ISBN : 1461205476

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Book Description

The fundamental purpose of this book is to synthesise the divergent literature on aquatic lipids into a co-ordinated, digestible form. A large part of the book addresses lipid composition and production in freshwater organisms, with chapters on phytoplankton, zooplankton and benthic invertebrates. A common theme throughout the book is the function of lipids in aquatic food webs, with a chapter devoted exclusively to lipids as indicators of health in fish populations. A complementary chapter highlights the role of lipids and essential fatty acids in mariculture. Methodologies to determine the lipid content of aquatic samples and suggestions as to the utility of fatty acids as trophic markers are included, as is one chapter on the role of lipids in the bioaccumulation and bioconcentration of toxicants and another on the relationships between lipids and surface films and foams. The final chapter highlights the similarities and differences between lipids of marine and freshwater origin. Students and researchers in ecology, phycology, aquatic toxicology, physiological ecology and limnology will find this an invaluable guide and reference.



Aquatic Food Webs

Author : Andrea Belgrano

Publisher : Oxford University Press, USA

Page : 274 pages

File Size : 20,96 MB

Release : 2005

Category : Science

ISBN : 0198564821

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Book Description

'Aquatic Food Webs' provides a current synthesis of theoretical and empirical food web research. The textbook is suitable for graduate level students as well as professional researchers in community, ecosystem, and theoretical ecology, in aquatic ecology, and in conservation biology.



Food Webs

Author : Gary A. Polis

Publisher : Springer Science & Business Media

Page : 475 pages

File Size : 38,95 MB

Release : 2013-04-17

Category : Science

ISBN : 1461570077

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Book Description

Reflecting the recent surge of activity in food web research fueled by new empirical data, this authoritative volume successfully spans and integrates the areas of theory, basic empirical research, applications, and resource problems. Written by recognized leaders from various branches of ecological research, this work provides an in-depth treatment of the most recent advances in the field and examines the complexity and variability of food webs through reviews, new research, and syntheses of the major issues in food web research. Food Webs features material on the role of nutrients, detritus and microbes in food webs, indirect effects in food webs, the interaction of productivity and consumption, linking cause and effect in food webs, temporal and spatial scales of food web dynamics, applications of food webs to pest management, fisheries, and ecosystem stress. Three comprehensive chapters synthesize important information on the role of indirect effects, productivity and consumer regulation, and temporal, spatial and life history influences on food webs. In addition, numerous tables, figures, and mathematical equations found nowhere else in related literature are presented in this outstanding work. Food Webs offers researchers and graduate students in various branches of ecology an extensive examination of the subject. Ecologists interested in food webs or community ecology will also find this book an invaluable tool for understanding the current state of knowledge of food web research.



Freshwater Ecology

Author : Walter K. Dodds

Publisher : Academic Press

Page : 840 pages

File Size : 45,37 MB

Release : 2010-11-03

Category : Science

ISBN : 0080884776

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Book Description

Freshwater Ecology, Second Edition, is a broad, up-to-date treatment of everything from the basic chemical and physical properties of water to advanced unifying concepts of the community ecology and ecosystem relationships as found in continental waters.With 40% new and expanded coverage, this text covers applied and basic aspects of limnology, now with more emphasis on wetlands and reservoirs than in the previous edition. It features 80 new and updated figures, including a section of color plates, and 500 new and updated references. The authors take a synthetic approach to ecological problems, teaching students how to handle the challenges faced by contemporary aquatic scientists.This text is designed for undergraduate students taking courses in Freshwater Ecology and Limnology; and introductory graduate students taking courses in Freshwater Ecology and Limnology. - Expanded revision of Dodds' successful text. - New boxed sections provide more advanced material within the introductory, modular format of the first edition. - Basic scientific concepts and environmental applications featured throughout. - Added coverage of climate change, ecosystem function, hypertrophic habitats and secondary production. - Expanded coverage of physical limnology, groundwater and wetland habitats. - Expanded coverage of the toxic effects of pharmaceuticals and endocrine disrupters as freshwater pollutants - More on aquatic invertebrates, with more images and pictures of a broader range of organisms - Expanded coverage of the functional roles of filterer feeding, scraping, and shredding organisms, and a new section on omnivores. - Expanded appendix on standard statistical techniques. - Supporting website with figures and tables - http://www.elsevierdirect.com/companion.jsp?ISBN=9780123747242



Food Webs

Author : John C. Moore

Publisher : Cambridge University Press

Page : 445 pages

File Size : 10,22 MB

Release : 2018

Category : Business & Economics

ISBN : 1107182115

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Book Description

This book presents new approaches to studying food webs, using practical and policy examples to demonstrate the theory behind ecosystem management decisions.