It is widely agreed that fecundity selection and sexual selection are the major evolutionary
forces that select for larger body size in most organisms. The general, equilibrium view is …

(Invited Article) Abstract Sexual size dimorphism (SSD) is widespread and variable among
animals. According to the differential equilibrium model, SSD in a given species is expected …

Bat wing morphology is considered in relation to flight performance and flight behaviour to
clarify the functional basis for eco-morphological correlations in flying animals. Bivariate …

The newest addition to the highly regarded Helm Identification Series, which includes
Seabirds (" unparalleled achievement,"" best bird guide of any kind or of any generation,"" …

Optimal Bird Migration: The Relative Importance of Time, Energy, and Safety Page 1 Optimal
Bird Migration: The Relative Importance of Time, Energy, and Safety T. ALERSTAM and A …

It has been great fun to write this book, even though it has taken longer than planned, and
occasionally been exasperating. The most difficult problem was deciding what to exclude …

In order to compensate for the resource demands of reproduction, organisms usually
increase the amount of total food resources available. This may be achieved by different …

Birds show bewildering diversity in their life histories, mating systems and risk of extinction.
Why do albatrosses delay reproduction for the first 12 years of their life while zebra finches …

Flapping flight is a highly effective form of locomotion which has permitted the radiation of
birds into a wide range of niches. In this chapter I explore how the mechanics of flapping …

ABSTRACT A detailed osteological description of Tyrannosaurus rex Osborn, 1905 is
presented, based primarily on the most complete specimen yet collected of this taxon …