Titlebook: Avian Migration; Peter Berthold,Eberhard Gwinner,Edith Sonnenschein Conference proceedings 2003 Springer-Verlag Berlin Heidelberg 2003 Ori

Ornithologist

BRACE

NEXUS

Peter Berthold,Eberhard Gwinner,Edith SonnenscheinThe latest in bird migration: from satellite trakcking to molecular biology

鋸齒狀

misanthrope

僵硬

978-3-642-07780-7Springer-Verlag Berlin Heidelberg 2003

死貓他燒焦

Evolution of Bird Migration: A Phylogenetic and Biogeographic Perspectiveic structure and phylogeny on the other. I will do this by proposing a number of hypotheses based on present knowledge of migration behaviour and range characteristics of migratory landbirds in general. These hypotheses will then be discussed and, in two cases, tested quantitatively using published

悄悄移動

Recent Changes in Migratory Behaviour of Birds: A Compilation of Field Observations and Ringing Datacent observations give evidence for a high degree of flexibility in migratory behaviour (Berthold 2000). This chapter aims to survey the patterns of various recent developments and their possible causes.

Narrative

Ecology and Evolution of Hummingbird Population Movements and Migrationass of food requirements for trochilid species derive from nectar. This level of dependence on a single food type places intense fitness pressure on the individual to locate reliable sources for this item sufficient for survival and/or reproduction throughout the annual cycle. An additional, complic

preservative

Quantitative Genetic Analysis of Migratory Behaviouration was entirely determined by the environment. For instance, the activity of caged birds deprived of environmental cues during the migratory season, the migration of young birds without experience and without the guidance of their parents (e.g. cuckoos) and the departure from the breeding grounds