Fisheries Ecology and Management
by Carl J Walters and Steven J D Martell
Quantitative modeling methods have become a central tool in the management of harvested fish populations. This book examines how these modeling methods work, why they sometimes fail, and how they might be improved by incorporating larger ecological interactions. Fisheries Ecology and Management provides a broad introduction to the concepts and quantitative models needed to successfully manage fisheries. Walters and Martell develop models that account for key ecological dynamics such as trophic i...
Imagine a thriving garden in your backyard, bursting with vibrantly colored blooms and lush green leaves, shaded by tall trees. Now imagine the same garden, alive with buzzing and flapping and chirping and croaking. Imagine the ecological impact of encouraging natural pollinators. Imagine the excitement of watching your garden become a hub of activity and learning about all of its different visitors. For those who relish observing nature in action, planning a garden to attract certain types of w...
Tracks and Tracking (Legacy Edition) (The Classic Outing Handbooks Collection, #12)
by Josef Brunner
Animal Grayscale Coloring Book Vol. 4
by Adult Coloring Books and K S Bank
This is the story of how a nation reversed a "silent spring" and saved the bald eagle from extinction. This bird of prey was declared the national symbol in 1782 but, by the 1960s, pollution and development had wiped out all but a few dozen. Grassroots movements started, the American consciousness was raised to all environmental threats, and federal laws were passed to keep the eagle population alive. This stunning book of full-color photographs and touching stories chronicles this inspiring suc...
Letter Tracing Book Handwriting Alphabet for Preschoolers Cute Cow
by John J Dewald
Every year, from the end of June to the end of August, Bruce and his family go to their cedar-clad cottage on the blue, wide lake on the edge of the wilderness. At first, the summer of 1954 seems like any other. But just when he realises life is perfect, everything starts to change. He's ten, the family dynamics are shifting, and over the summer both the harshness of the adult world and the patterns of the natural world reveal themselves. By the time the weather turns he will be a different chil...
This book is essential reading for anyone who loves dolphins. It reveals the truth about swimming with dolphins.
Field Guide to Invasive Plants and Animals in Britain (Helm Field Guides)
by Olaf Booy, Max Wade, and Helen Roy
The impact of invasive organisms is second only to habitat loss as a threat to biodiversity and yet, despite increasing ecological awareness, people remain largely unaware of these plants and animals and their potentially devastating impact. Although most biological introductions fail, many prove successful and these can prove disastrous for native fauna and flora. This field guide will enable the identification of a range of invasive plants and animals now found in Britain. Though these specie...