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Author: Harmut Walter Publisher: University of Chicago Press ISBN: 9780226872292 Category : Nature Languages : en Pages : 456
Book Description
Named after a Sardinian princess of the fourteenth century who established laws protecting falcons, Eleonora's falcon is the only European bird to breed in autumn and feed its brood on the mass of birds that migrate from Europe to Africa between July and October. It breeds on small Mediterranean islands in colonies of up to 200 pairs and hunts often in groups, preying on more than 90 species of migrant birds. During the winter this falcon visits the rain-soaked woodlands of Madagascar. In this study—illustrated beautifully and extensively with 59 line drawings and 38 photographs—Hartmut Walter shows how the unique geographical and biological situation of Falco eleonorae makes the species' health an important indicator of environmental decay. For though it lives in relatively isolated areas, Eleonora's falcon nevertheless may ingest the many pollutants contained in its diet of birds migrating from industrial Europe. Walter, who has studied raptors on several continents and has been an ornithologist since his early youth, examines several discrete colonies of Eleonora's falcon. He concentrates on the species' intraspecific behavior and ecology—such as the falcons' aggressive actions, hunting strategies, and response to fluctuating environmental conditions—and investigates their evolutionary past.
Author: Harmut Walter Publisher: University of Chicago Press ISBN: 9780226872292 Category : Nature Languages : en Pages : 456
Book Description
Named after a Sardinian princess of the fourteenth century who established laws protecting falcons, Eleonora's falcon is the only European bird to breed in autumn and feed its brood on the mass of birds that migrate from Europe to Africa between July and October. It breeds on small Mediterranean islands in colonies of up to 200 pairs and hunts often in groups, preying on more than 90 species of migrant birds. During the winter this falcon visits the rain-soaked woodlands of Madagascar. In this study—illustrated beautifully and extensively with 59 line drawings and 38 photographs—Hartmut Walter shows how the unique geographical and biological situation of Falco eleonorae makes the species' health an important indicator of environmental decay. For though it lives in relatively isolated areas, Eleonora's falcon nevertheless may ingest the many pollutants contained in its diet of birds migrating from industrial Europe. Walter, who has studied raptors on several continents and has been an ornithologist since his early youth, examines several discrete colonies of Eleonora's falcon. He concentrates on the species' intraspecific behavior and ecology—such as the falcons' aggressive actions, hunting strategies, and response to fluctuating environmental conditions—and investigates their evolutionary past.
Author: Thomas Alerstam Publisher: Cambridge University Press ISBN: 9780521448222 Category : Nature Languages : en Pages : 438
Book Description
Bird migration is one of the most astonishing feats in the natural world. Millions of birds migrate, often over very large distances, to benefit from seasonal resource surpluses and to avoid predators and competitors. The aim of this study is to survey the phenomena.
Author: Dick Forsman Publisher: Bloomsbury Publishing ISBN: 1472925548 Category : Nature Languages : en Pages : 608
Book Description
Raptors are notoriously hard to identify, even if seen well, and represent perhaps the toughest of all ID challenges for birders. This book is the ultimate flight-identification guide for the raptors of the Western Palaearctic, covering Europe, North Africa, the Middle East (including Arabia) to Central Asia. It provides identification information for all 60 species that regularly occur in the region, to subspecific level. The text covers every plumage and age in detail, with each species account accompanied by a range of photographs covering all the principal plumages. Based on this stunning photographic coverage, most of which has never been published before, this book represents a landmark in bird identification books and a major work for all raptor enthusiasts.
Author: Giovanni Leonardi Publisher: Springer Nature ISBN: 3030605418 Category : Science Languages : en Pages : 214
Book Description
This monograph is the result of eight years of bibliographical and field research concerning several behavioural ecology aspects of the Palaearctic falcons. For a while, this book grew along with “The Lanner falcon” published in 2015 and revised in 2017. In both books the main aim was to provide a clear overview of the biology and ecology of these species. In fact in the last 20 years, the number of publications on falcons has grown tremendously and, in parallel, also those belonging to the so-called "grey literature". The number of people involved is also increased by including both academics and nature lovers. Many previously published books emphasized identification, and offered little insights on the behavioural and ecological aspects of the species. Very often, the research on behavioural ecology remains closed within the confines of academic community. By contrast, a multitude of basic data is scattered in countless articles published in local magazines. Many falcon species are easy to observe and study (such as kestrels) but others are more rare and localized. In order to understand the survival strategies adopted by this group of avian predators, it is necessary not to lose sight of the overall picture. This book tries to explain the different survival strategies by examining, through a few essential chapters, some crucial aspects for all species. The first chapter provides information on the genus Falco, its genetics, evolution and morphological peculiarities. The other chapters deal with reproductive strategies, competition, exploitation of resources, dispersal patterns, communication and sociality. One of the main objectives of this book is to produce an accessible but scholarly curated source of reference. By understanding the most common species, it is possible to provide a working framework for rarer, and especially threatened, falcon species.
Author: Roger Safford Publisher: Bloomsbury Publishing ISBN: 147297901X Category : Nature Languages : en Pages : 337
Book Description
This major new field guide covers Madagascar and the Indian Ocean islands, including the Seychelles, Coromos and Mascarenes (Mauritius, Réunion and Rodrigues). The Malagasy region contains one of the most extraordinary concentrations of biodiversity in the world. Its recognition as a zoogeographic region in its own right has recently been confirmed and, all taxa combined, the region was found to hold the second most distinct assemblage of vertebrates in the world after the Australian region, despite being the smallest of them all. This new field guide in the Helm Field Guides series covers the whole of the Malagasy region, which comprises the unique island of Madagascar and the various islands and archipelagos of the Indian Ocean including the Seychelles, Comoros and Mascarenes (Mauritius, Réunion and Rodrigues). Every resident and migrant species is covered in full detail with a colour distibution map for each species. Vagrants are also treated in detail, but without maps. All species are illustrated on a beautiful series of 124 colour plates, with artwork from John Gale and Brian Small. Conveniently, the plates have been arranged so that all the key species of the various archipelagos are placed together in sections. This is a major work of reference on the birds of the region and will remain the standard text for many years to come.
Author: Howard Mielke Publisher: Springer Science & Business Media ISBN: 9401164991 Category : Science Languages : en Pages : 370
Book Description
Insight into universal nature provides an intellectual life? Why are so many plants and animals, especially delight and sense of freedom that no blows of fate and freshwater species, at risk of extinction? These are a few no evil can destroy. of the questions that have intrigued observers of nature Alexander von Humboldt, 1805 and the Earth. By studying the Earth's patterns of life, students of biogeography ultimately ponder some of the ... on that small spot, that little blue and white thing, most basic questions about life and the cosmos. is everything that means anything to you - all of history and music and poetry and art and death and birth and love, tears, joy, games, all of it on that little Historical roots of biogeography spot out there that you can cover with your thumb. The topic of biogeography has its roots in the work of And you realize from that perspective that you've Alexander von Humboldt, the recognized father of plant changed, that there's something new there, that the geography (Detwyler 1969, Browne 1983). From its relationship is no longer what it was.
Author: Michele Panuccio Publisher: CRC Press ISBN: 1351023608 Category : Nature Languages : en Pages : 411
Book Description
Given their roles in the ecosystem, raptors are widely considered the flagship or umbrella species among birds. Most species undertake a seasonal journey that is impressive because of the length, and the imposing natural barriers such as deserts and seas that they fly over. The migration of birds of prey has unique characteristics in the animal world because of their morphology and flight style. The flying path of Afro-Palearctic migrants between breeding and wintering grounds is determined by several factors such as morphology of the birds, geography, behavioural adaptations. The book analyses the migration patterns of raptors along the Afro-Palearctic migratory system, and summarizes the recent research on these top predator species. Behavioural adaptations such as the importance of social interactions and the modulation of the different flight styles as well as ecological interactions with the encountered environment and weather conditions en route are described in the book. Moreover, the impact of climate change on the migratory behaviour and key conservation issues are discussed. The book provides an overview of the migratory characteristics and flyway patterns of all European raptors species and also some Asian ones. These chapters have been written by some of the most important raptor specialists, giving a complete picture of the different migration strategies on the basis of both traditional methods and new technologies.
Author: Harmut Walter
Author: Harmut Walter
Author: Thomas Alerstam
Author: Arthur Ludlow Clark
Author: James A. Weisheipl
Author: Dick Forsman
Author: Giovanni Leonardi
Author: Roger Safford
Author: Howard Mielke
Author: Seitz
Author: Michele Panuccio