Dennis, Roger L. H
A resource-based habitat view for conservation : butterflies in the British landscape / Roger L. H. Dennis. -- Hoboken : John Wiley & Sons, 2012. -- 1 online zdroj (420 stránek). -- Contents: A Resource-Based Habitat View for Conservation: Butterflies in the British Landscape; CONTENTS; Foreword; Preface; Acknowledgements; 1 WHAT IS A HABITAT? AN AWKWARD QUESTION; Definitions of habitat; Distinguishing habitat from biotope and vegetation units; 2 A SIMPLE MODEL FOR BUTTERFLY HABITATS; Habitat model; Key issues in the habitat model; The matrix or so-called empty space; Movement in and between habitats; Open versus closed populations and species; Qualifying resource outlets; Consumables; Larval hostplants and herbivory; Nectar sources and adult food; Utilities. -- Summary: In A Resource-Based Habitat View for Conservation Roger Dennis introduces a novel approach to the understanding of habitats based on resources and conditions required by organisms and their access to them, a quantum shift from simplistic and ineffectual notions of habitats as vegetation units or biotopes. In drawing attention to what organisms actually use and need in landscapes, it focuses on resource composition, structure and connectedness, all of which describe habitat quality and underpin landscape heterogeneity. This contrasts with the current bipolar view of landscapes made up of habit. -- ISBN : 9781444315264 (online ; pdf). -- 1444315269.
motýli. chráněné druhy živočichů. biomonitoring. ochrana biotopů. Velká Británie. elektronické knihy
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