Gå til hovedmeny

Bird Populations

Collins New Naturalist Library

Pris: 468
Frakt på varen: 59,-
Publiser på FaceBook!
Tilgjengelighet: 2-4 ukers leveringstid
I sitt banebrytende nye arbeid, forklarer Ian Newton hvorfor forskjellige fuglearter er fordelt i de tallene som de er, og har endret seg over årene på den måten at de har. Boka beskriver detaljert også menneskets innvirkning på fuglebestandene.
Forlag/produsentHarper Collins
ForfatterNewton, I.
Antall sider608s

De som kjøpte Bird Populations kjøpte også
Sveriges humlor
Pris: 101
National Geographic Complete Birds of North America
Pris: 316
Allvær Notatbok - Heftet (391FX)
Pris: 87
A Field Guide to Monitoring Nests
Pris: 331
The Finnish Bird Ringing Atlas
Pris: 676
Allvær spiralblokk - Plastcover (935) Grønn
Pris: 64
Finding Birds in Lapland
Pris: 129
The Helm Guide to Bird Identification
Pris: 381
Kikkertseler Bungee (elastisk)
Pris: 510

In Ian Newton's latest New Naturalist volume, he explores bird populations and why their numbers vary in the way they do, from year to year or from place to place. He addresses the various factors that we know limit bird numbers – food supplies and other resources, competitors, predators, parasites and pathogens, and various human impacts.

The combination of a rapidly expanding human population, a predominantly utilitarian attitude to land, central government policy on land use, and increasing mechanisation have combined to promote more massive changes in land use – and hence in bird habitats – in recent decades than at any comparable period previously. These developments have in turn brought huge changes in bird populations, as some species dependent on the old landscapes declined, and others benefiting from the changes increased. Over the same period, changing public attitudes to wildlife, protective legislation and a growing network of nature reserves allowed previously scarce bird species to recover from past onslaughts, while climate warming has promoted further changes.

In this seminal new work, Ian Newton sets out to explain why different bird species are distributed in the numbers that they are, and have changed over the years in the way that they have. He emphasises the factors that influence bird numbers, rather than the numbers themselves, thus providing a much-needed overview which is necessary if we are to successfully manage bird populations, whether for conservation reasons, for sustainable hunting or for crop protection. The continued monitoring of bird numbers can also alert us to impending environmental problems. In addition, the regular watching and study of birds now provides a source of recreation and pleasure for very large numbers of people, who would find a world with fewer birds a poorer place.

Nof Travel

Klikk her for å gå til kartsøk!

Klikk her for å vise alle varer på tilbud!

10 mest solgte bøker
Gyldendals store fugleguide (myk perm) Guide til Norges fugleliv
Maur i Norge Nattens lydløse jegere
Praktisk stjerneatlas Gulls of Europe, North Africa, and the Middle East
Blåmeisene i ospestammen Et øye for Øyenstikkere
Insekter i Norge Dyrespor


Følg Natur og Fritid på