Geographical Variation in Waders

Összefoglaló

Morphometrical differentiation 63 Prediction of breeding origin................................................. 68 Body mass 69 Primary moult 69 Discussion............................................................... 69 The taxonomy of the Eurasian Golden Plover 69 The existence of a partial breast-feather moult during breeding 69 Morphometrical differentiation between both sexes........................ 70 The occurrence of primary moult on the breeding grounds 70 Summary 70 6 Grey Plover - Pluvialis squatarola 71 Introduction.............................................................. 73 Morphometrical differentiation 77 Prediction of breeding origin................................................. 80 Accuracy 81 Exclusivity 81 Contact zones............................................................ 82 Body mass 85 Primary moult 85 Discussion............................................................... 86 The taxonomy of the Grey Plover...................................... 86 Small size at northern latitudes........................................ 87 Morphometrical variation in the Palearctic 87 Summary 87 7 Red Knot - Calidris canutus............................................. 89 Introduction.............................................................. 91 Morphometrical differentiation 93 Prediction of breeding origin................................................. 99 Accuracy 99 Exclusivity 101 Contact zones........................................................... 102 Body mass 102 Primary moult 103 Discussion.............................................................. 103 of the Knot........................................... 103 The taxonomy Is the knot breeding in Yakutia? 106 Different degrees of geographical variation in the d'd' and !f!f 106 Summary............................................................... 107 8 Sanderling - Calidris alba 109 Introduction............................................................. 111 Morphometrical differentiation 111 Prediction of breeding origin................................................ 116 Accuracy 116 Exclusivity 118 Contact zones........................................................... 118 Body mass 118 Primary moult 118 Discussion.............................................................. 118 The taxonomy of the Sanderling................................ 118 Sexing Sanderlings 119 Summary............................................................... 119 VI 9 Curlew Sandpiper - Calidris ferruginea 121 Introduction............................................................. 123 Morphometrical differentiation 123 Prediction of a bird's sex........................................ 127 Accuracy 12