The wolves and moose of Isle Royale: restoring an island ecosystem /
Castaldo, Nancy F. 1962-
The wolves and moose of Isle Royale: restoring an island ecosystem / Wolves & moose of Isle Royale text by Nancy F. Castaldo ; photographs by Morgan Heim. - First edition. - 89 pages : illustrations (chiefly color), color maps ; 24 x 29 cm - Scientists in the field . - Scientists in the field. .
Includes bibliographical references (page 87) and index.
"On Isle Royale, a remote island national park surrounded by frigid Lake Superior, a thrilling drama is unfolding between wolves and moose, the island's ultimate predator and prey. For over sixty years, in what has been known as the longest study of a predator-prey relationship in the world, scientists have observed the importance of wolves to Isle Royale's unique ecology. But due to illness and underlying factors, the population of wolves on the island has dropped while the number of moose has increased, putting the Isle Royale ecosystem in jeopardy."--
9780358274230 0358274230
Wolves--Juvenile literature.
Moose--Juvenile literature.
Predation (Biology)--Juvenile literature.
Predatory animals--Juvenile literature.
Wildlife conservation--United States--Juvenile literature.
Wildlife recovery--United States--Juvenile literature.
Isle Royale National Park (Mich.)--Juvenile literature.
Isle Royale (Mich.)--Juvenile literature.
Instructional and educational works.
The wolves and moose of Isle Royale: restoring an island ecosystem / Wolves & moose of Isle Royale text by Nancy F. Castaldo ; photographs by Morgan Heim. - First edition. - 89 pages : illustrations (chiefly color), color maps ; 24 x 29 cm - Scientists in the field . - Scientists in the field. .
Includes bibliographical references (page 87) and index.
"On Isle Royale, a remote island national park surrounded by frigid Lake Superior, a thrilling drama is unfolding between wolves and moose, the island's ultimate predator and prey. For over sixty years, in what has been known as the longest study of a predator-prey relationship in the world, scientists have observed the importance of wolves to Isle Royale's unique ecology. But due to illness and underlying factors, the population of wolves on the island has dropped while the number of moose has increased, putting the Isle Royale ecosystem in jeopardy."--
9780358274230 0358274230
Wolves--Juvenile literature.
Moose--Juvenile literature.
Predation (Biology)--Juvenile literature.
Predatory animals--Juvenile literature.
Wildlife conservation--United States--Juvenile literature.
Wildlife recovery--United States--Juvenile literature.
Isle Royale National Park (Mich.)--Juvenile literature.
Isle Royale (Mich.)--Juvenile literature.
Instructional and educational works.