Explores the traits and characteristics of a river ecosystem, using the Columbia River Basin as an example. Discusses typical flora and fauna, and the impact that humans have on the river as well.

Examines the problem of desertification of land, a process by which soil becomes bare and dry and cannot support vegetation, explaining why desertification happens, its effects on plants, ecosystems, animals, and people, and including case studies, as well as information on protection and conservation efforts.

Describes the geography, geology, ecosystems, biodiversity, history and prehistory, and conservation of farm and city biomes, and includes photographs, charts, illustrations, a glossary, and an index.

Describes the ecosystems that surround cacti in the desert, discussing what sorts of plants, birds, reptiles, and mammals live there, and includes "See for Yourself

Describes a fieldtrip that eighteen students and seven adults took to study the ecosystems of a tropical rain forest and a coral reef in Belize.

Discusses the plants and animals and various ecosystems of Texas including native and non-native species, as well as the impact of humans on the environment and efforts at environmental and species preservation and protection.

Offers detailed comparative essays on major biomes and their component ecosystems. Includes entries on land biomes and water biomes and covers climate, elevation, soil, water bodies, vegetation, animal life, food web, plant and animal adaptations, endangered species, human effects on the biome and the effects of the environment on humans' culture and economy. [electronic resource]

Photographs and text provide an introduction to the hammerhead shark, discussing its physical features, habitat, hunting behaviors, and role in the ecosystem.

Describes the ecosystem in a garbage dump, discussing what sorts of animals, insects, and bacteria live there, and includes "See for Yourself" projects.

A simple introduction to food chains and webs, featuring both herbivores and carnivores and discussing energy, food production, and decomposition in various ecosystems.

Presents an introduction to the Gobi Desert and its unique ecosystem.

Describes the topography, climate, plant and animal life, unique geographical features, human cultures, and the problems facing the Kalahari Desert.

Photographs and text provide an introduction to the mako shark, discussing its physical features, habitat, hunting behaviors, and role in the ecosystem.

Describes the geography, plant and animal life, mineral resources, destruction, and environmental protection of the world's rain forests and how people live in this ecosystem.

Follows an acorn as it learns about its future as a tree, describing each stage of the plant's life from seed germination to maturation, and includes information on different types of trees and their role in the planet's ecosystem.

Describes the geography, geology, ecosystem, biodiversity, history, uses, and future of tundra biomes, and includes photographs, charts, illustrations, a glossary, and an index.

Describes the geography, geology, ecosystem, biodiversity, history, uses, and future of wetlands biomes, and includes photographs, charts, illustrations, a glossary, and an index.

Describes whale sharks, their physical features, and their role in the ecosystem.

Uses illustrations and photographs to explore the areas of ecology, including the study of nature, major world biomes, water creatures and humans in the biosphere. [electronic resource]

In graphic novel format looks at the biology of coral reefs as well as their ecological importance.

Explores the world of ecology and the ways in which living things are connected to their environment, and contains full-color captioned photographs and text that explains such topics as population growth, food webs, the water cycle, distribution of life, and more.

Discover life in the tropical rain forest - from the exotic birds in the tree tops to the millions of insects on the forest floor.

A color-illustrated look at the forest food chain, describing each link, from the producers to the decomposers.

A color-illustrated look at the pond food chain, describing each link, from the producers to the decomposers.

A photo essay about the range of plants and animals found in fresh water throughout the year, examining the living conditions and survival mechanisms of creatures dwelling at the edge of the water, on its surface, or under the mud.

Explains what carnivores are, discusses the role of the meat eaters in the food chain, and introduces different types of carnivores.

A color-illustrated look at the decomposer's role in the food chain, which describes what shredders and saprobes, including bacteria, fungi, and slime molds, do to break down dead plants and animals.

Photographs and easy-to-follow text introduce young readers to the plants, insects, and animals that make up the food chain in a backyard habitat.

Introduces characteristics of different kinds of forests found around the world, the plants and animals that populate them, and how they are endangered.

Describes the geography, geology, climate, life, history, exploration, industries, and management of desert biomes, discusses threats to deserts, and includes photographs, charts, illustrations, a glossary, and an index.