Bird Ecology and Conservation A Handbook of Techniques

used are not necessarily the same in autumn and spring and may also differ between experienced (adult) and juvenile birds on the ...

7.2.3Genetic markers From harmless blood samples (Chapter 9), molecular genetic techniques provide useful methods of assigning i ...

164 |Migration Equator 12 11 10 9 8 7 6 55 57 59 61 63 65 67 69 Latitude (^15) δ N Fig. 7.1Map showing recoveries of willow warb ...

divided between seasons and locations, providing the possibility of using stable isotopes to make a crude map of movements. 7.3 ...

was a watch, the flight direction can be derived (Nisbet 1959). The apparent speed is mainly determined by the distance from the ...

signal from a small transmitter (e.g. 0.7 g) can be picked up at 20 km distance from a departing and climbing bird. This method ...

with a high horizontal resolution but no altitudinal resolution. Surveillance radars are therefore used when studying migration ...

7.3.5Stopover An important part of the migration process and strategy is the stopover periods during which energy is accumulated ...

(TOBEC®; Scott et al. 2001) or bioelectrical impedance (BIA; Lichtenbelt 2001), which are related to the amount of body fat. How ...

Which of the alternative fuel substrates are catabolized can be determined from concentrations of blood plasma metabolites. Free ...

effect of turbulence on flight, turbulence can easily be created by inserting nets or objects upstream from the test section. On ...

magnetic field using large magnetic coils, such as modified Helmholz coils (Wiltschko and Wiltschko 1995), the perception of the ...

(bi-coordinate magnetic navigation) varying across the Earth’s surface or by celestial information. Both the geomagnetic and cel ...

directions, and the length of this vector indicates the concentration. From the mean vector and sample size, suitable test stati ...

migration, breeding, and molt. Evolutionary population models have been used for understanding the evolution of migration and to ...

trochilus trochilusandPhylloscopus trochilus acredula) reflect their African winter quarters. Proc. R. Soc. Lond. B, 267, 43–48. ...

Nagy, T.R. (2001). The use of dual-energy X-ray absorptionetry for the measurement of body composition. InBody Composition Analy ...

8. Information from dead and dying birds John E. Cooper 8.1 Introduction From time to time the avian biologist has access to dea ...

in such cases is, usually, what led to the starvation? Often the answer to the latter is complex. Thus, initial investigation of ...

The killing of birds for examination and sampling is generally discouraged, especially in countries such as Britain where, in ad ...