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Table 3 Sample sizes, geographic origin and climatic variables for the eggs of the nine larks species used in this study

From: Are antimicrobial defences in bird eggs related to climatic conditions associated with risk of trans-shell microbial infection?

Species n nest n Latitude Longitude Altitude (m) Country P (mm) T (°C) AM
Hoopoe lark Alaemon alaudipes 18 (8) 9 22° 14’ N 41° 50’ E 1001 Saudi Arabia 42.23 26.22 1.17
Black-crowned finchlark Eremopterix nigriceps 3 (1) 3 21° 15’ N 40° 41’ E 1489 Saudi Arabia 64.16 22.40 1.98
Crested lark Galerida cristata 1 (0) 1 21° 15’ N 40° 41’ E 1489 Saudi Arabia 64.16 22.40 1.98
Red-capped lark Calandrella cinerea 12 (5) 7 0° 52’ S 36° 23’ E 2038 Kenya 193.96 20.72 6.31
  2 (0) 1 0° 37’ S 36° 28’ E 2456 Kenya 275.83 16.07 10.58
Horned lark Eremophila alpestris 4 (2) 4 37° 10’ N 72° 53’ E 4084 Afghanistan 78.28 5.88 4.93
  7 (2) 7 37° 24’ N 73° 30’ E 4122 Afghanistan 142.19 1.40 12.48
  1 (0) 1 40° 02’ N 83° 09’ W 284 USA 206.05 13.24 8.86
Hume’s short-toed lark Calandrella acutirostris 3 (0) 3 37° 11’ N 72° 49’ E 4401 Afghanistan 78.28 5.88 4.93
  9 (6) 7 37° 25’ N 76° 39’ E 4129 Afghanistan 37.20 5.53 2.40
  1 (0) 1 37° 18’ N 73° 03’ E 3707 Afghanistan 119.09 -2.28 15.42
Oriental skylark Alauda gulgula 1 (0) 1 37° 01’ N 72° 41’ E 2802 Afghanistan 86.09 4.15 6.09
Skylark Alauda arvensis 29 (13) 14 52° 55’ N 6° 15’ E 10 Netherlands 302.92 11.27 14.24
Woodlark Lullula arborea 33 (13) 21 52° 55’ N 6° 15’ E 10 Netherlands 219.47 9.90 11.03
  1. n: number of eggs (in brackets, number showing some degree of embryonic development); nest n: number of nests. The climatic variables are mean breeding season values for precipitation (P), temperature (T) and the aridity index AM (P/T + 10). A lower value of AM indicates a more arid environment. Altitude values are taken from Google Earth[67].
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Frontiers in Zoology

ISSN: 1742-9994