Sökning: "farmland bird"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden farmland bird.

1. 1. On starlings and farming: population decline, foraging strategies, cost of reproduction and breeding success

   Författare :Måns Bruun; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; breeding success; foraging strategies; intensification; agricultural methods; population decline; farmland bird; cost of reproduction; Animal ecology; Djurekologi;

   Sammanfattning : The European Starling Sturnus vulgaris as many other farmland bird species has been declining during the last decades. The cause of these declines is generally believed to be changes with in agricultural methods affecting breeding and survival of birds. LÄS MER

3. 2. On the importance of farmland as stopover habitat for migrating birds

   Författare :Juliana Dänhardt; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; conservation; bird migration; agriculture; stopover ecology; Golden plover; Pluvialis apricaria; landscape heterogeneity; organic farming; food availability; earthworms;

   Sammanfattning : Agricultural intensification has led to dramatic population declines among many farmland bird species. Negative effects of intensive farming in terms of decreased local habitat quality or structural simplification of farmland landscapes have reduced both reproductive outcome and winter survival of many species. LÄS MER

4. 3. Effects of created habitats on farmland biodiversity

   Författare :Annelie Jönsson; Biodiversitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; agricultural intensification; brown hare; common pheasant; farming intensity; granivorous passerines; grey partridge; habitat creation; landscape heterogeneity; pollinators;

   Sammanfattning : Agricultural intensification has caused severe declines among biodiversity in European farmland over the last half century. The transformation of the agricultural landscape has led to reduced availability of key resources such as food, nesting habitat and shelter. LÄS MER

5. 4. Biodiversity conservation in agricultural landscapes : linking farmers and agri-environmental measures to farmland birds

   Författare :Jonas Josefsson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :NATURVETENSKAP; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; NATURAL SCIENCES; SOCIAL SCIENCES; SOCIAL SCIENCES;

   Sammanfattning : Agricultural industrialization alters rural landscapes in Europe, causing large-scale and rapid loss of important biodiversity. The principal instruments to protect farmland biodiversity are various agri-environmental measures (AEMs) in the EU Common Agricultural Policy (CAP). LÄS MER

7. 5. Matching a changing world - the importance of habitat characteristics for farmland breeding Eurasian curlew

   Författare :Adriaan De Jong; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Where animals are and what they do, is the result of a continuous cost-benefit analysis of available alternatives. Choices have to be made, for example when settling in a breeding territory after migration, when foraging conditions change, when humans change the landscape, or when a predator approaches the nest. LÄS MER