What If Sea Urchins Disappeared PDF Download
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Author | : Theresa Emminizer |
Publisher | : Gareth Stevens Publishing LLLP |
Total Pages | : 24 |
Release | : 2019-07-15 |
Genre | : Juvenile Nonfiction |
ISBN | : 1538238292 |
Download What If Sea Urchins Disappeared? Book in PDF, ePub and Kindle
From the fiercest predator to the lowliest plant, every member of an ecosystem is immeasurably important to the survival of their environment. Although they're not regarded as a keystone species, sea urchins play a pivotal role in maintaining healthy marine environments. Without sea urchins to consume algae, entire coral reef ecosystems could collapse. This educational text invites readers to imagine a world without sea urchins, delving into curricular science concepts, such as interdependence of species, with accessible language and real-world examples.
Author | : Theresa Emminizer |
Publisher | : Gareth Stevens Publishing LLLP |
Total Pages | : 24 |
Release | : 2019-07-15 |
Genre | : Juvenile Nonfiction |
ISBN | : 153823825X |
Download What If Sea Otters Disappeared? Book in PDF, ePub and Kindle
Sea otters are a keystone species in their environment. If they were to disappear, the ripple effect on the plants and animals in the ecosystem would be profound. Kelp forests absorb carbon dioxide. Sea urchins feed on kelp and can deplete these forests if they are not kept in check. Sea otters prey on sea urchins, helping to maintain healthy kelp forests and thus, a healthy ecosystem. This dynamic text engages readers in an educational dialogue, examining the role of sea otters, the threats they face, and possible solutions to protect this fundamental species.
Author | : Linda Feaman |
Publisher | : Capstone |
Total Pages | : 165 |
Release | : 2014-06-17 |
Genre | : Education |
ISBN | : 1625219288 |
Download Unlocking Close Reading Book in PDF, ePub and Kindle
Unlock complex informational text through close reading. Use this book as a guide to teach close reading in a way that delves deeply into the text and aligns with the Common Core State Standards. Each standards-based lesson includes: * Complex informational text that is grade-level appropriate. * Text-dependent questions designed to facilitate discussion and provide differentiation for all students. * Thought capturers to help students organize their thoughts into writing. * Constructed response prompts, exemplars, and rubrics.
Author | : Suzanne Slade |
Publisher | : Capstone |
Total Pages | : 14 |
Release | : 2010-07 |
Genre | : Juvenile Nonfiction |
ISBN | : 1404863974 |
Download What If There Were No Sea Otters? Book in PDF, ePub and Kindle
Discusses the ocean ecosystem and the role of the sea otter as a keystone species in helping to maintain it, describing the otter's place on the food chain and what would happen if the sea otter were to become extinct.
Author | : Malcolm L. Hunter, Jr. |
Publisher | : John Wiley & Sons |
Total Pages | : 516 |
Release | : 2009-03-12 |
Genre | : Science |
ISBN | : 1444308971 |
Download Fundamentals of Conservation Biology Book in PDF, ePub and Kindle
In the new edition of this highly successful book, Malcolm Hunter and new co-author James Gibbs offer a thorough introduction to the fascinating and important field of conservation biology, focusing on what can be done to maintain biodiversity through management of ecosystems and populations. Starting with a succinct look at conservation and biodiversity, this book progresses to contend with some of the subject's most complex topics, such as mass extinctions, ecosystem degradation, and over exploitation. Discusses social, political, and economic aspects of conservation biology. Thoroughly revised with over six hundred new references and web links to many of the organizations involved in conservation biology, striking photographs and maps. Artwork from the book is available to instructors online at www.blackwellpublishing.com/hunter and by request on CD-ROM.
Author | : |
Publisher | : |
Total Pages | : 430 |
Release | : 1980 |
Genre | : Fisheries |
ISBN | : |
Download Canadian Technical Report of Fisheries and Aquatic Sciences Book in PDF, ePub and Kindle
Includes abstracts and introduction in French.
Author | : George John Romanes |
Publisher | : Good Press |
Total Pages | : 204 |
Release | : 2021-05-19 |
Genre | : Fiction |
ISBN | : |
Download Jelly-Fish, Star-Fish, and Sea-Urchins: Being a Research on Primitive Nervous Systems Book in PDF, ePub and Kindle
George John Romanes, a Canadian-Scots evolutionary biologist, and physiologist in this book focus on the primitive nervous system on the physiology of the Medusæ and Echinodermata. This book covers some essential parts in describing the morphology, development, and classification of the Medusæ, fundamental experiments about the study, and more. It contains illustrations geared to aid better understanding.
Author | : Fred Singer |
Publisher | : Cambridge University Press |
Total Pages | : 721 |
Release | : 2016-03-10 |
Genre | : Nature |
ISBN | : 110711537X |
Download Ecology in Action Book in PDF, ePub and Kindle
Integrates process and content of core areas of ecology using an engaging narrative, fascinating case studies, and stunning images throughout.
Author | : Michael Rajczak |
Publisher | : Gareth Stevens Publishing LLLP |
Total Pages | : 26 |
Release | : 2015-07-15 |
Genre | : Juvenile Nonfiction |
ISBN | : 1482417197 |
Download Sea Urchins Book in PDF, ePub and Kindle
Spiny, small, and edible, sea urchins are found in oceans all over the world. Their spines can be long or short and can cause great injury in their own right. In addition, some sea urchins’ spines are venomous. Divers are familiar with how to deal with a sea urchin sting, and readers will be, too. From why sea urchins sting to the rest of their body structures, this volume’s science content gives a great overview of this fascinating creature. Full-color photographs take readers into the ocean to see sea urchins up close—but not close enough that they’ll get stung.
Author | : Ray Hilborn |
Publisher | : Oxford University Press, USA |
Total Pages | : 209 |
Release | : 2019-06-27 |
Genre | : |
ISBN | : 0198839766 |
Download Ocean Recovery Book in PDF, ePub and Kindle
Over the last two decades, the scientific and popular media have been bombarded by gloom and doom stories of the future of fisheries, the status of fish stocks, and the impact of fishing on marine ecosystems. Dozens of certification and labeling schemes have emerged to advise consumers on what seafood is sustainable. In recent years, an opposing narrative has emerged emphasizing the success of fisheries management in many places, the increasing abundance of fish stocks in those places, and the prescription for sustainable fisheries. However, there has been no comprehensive survey of what really constitutes sustainability in fisheries, fish stock status, success and failures of management, and consideration of the impacts of fishing on marine ecosystems. This book will explore very different perspectives on sustainability, and bring together the data from a large number of studies to show where fish stocks are increasing, where they are declining, the consequences of alternative fisheries management regimes, and what is known about a range of fisheries issues such as the impacts of trawling on marine ecosystems. Ocean Recovery is aimed principally at a general audience that is already interested in fisheries but seeks both a deeper understanding of what is known about specific issues and an impartial presentation of all the data rather than selected examples used to justify a particular perspective or agenda. It will also appeal to the scientific community eager to know more about marine fisheries and fishing data, and serve as the basis for graduate seminars on the sustainability of natural resources.