Habitat-related Egg Size Differences and Hatching Success in the Spur-Winged Lapwing Vanellus spinosus (L., 1758) (Charadriiformes: Charadriidae)
Küçük Resim Yok
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute of Biodiversity and Ecosystem Research - Bulgarian Academy of Sciences
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Egg size in birds is a factor that affects their reproductive success, especially in the size and survival rates of the chicks. Until they learn to find food within a few days after hatching, precocial-type chicks need to use their own biological reserves to supply the energy they expend in walking, running, hiding from predators, etc. The spur-winged lapwing Vanellus spinosus (L., 1758) is a common lapwing species having precocial-type offspring. The species is seen as a summer visitor in Türkiye and Bo?azkent is one of its important breeding areas in the country. In the present study, the characteristics of the eggs laid in three habitats (agricultural lands, barren lands and meadows) within this area were compared. To this purpose, the eggs were weighed and their width and length were measured. In addition, the volume and sphericity index of the eggs were calculated. We found significant differences in egg measurements between the habitats with eggs laid in meadows being larger, heavier and with greater egg volume than in the other two habitats. However, the hatching rates in the meadows were the lowest (43.8 %) in comparison with the agricultural lands (67.7 %) and barren lands (73.3 %), possible due to potentially higher predation pressure in meadows. © 2023 Bulgarian Academy of Sciences. All rights reserved.
Açıklama
Anahtar Kelimeler
Bo?azkent, egg characteristics, hatching rate, precocial birds, Türkiye
Kaynak
Acta Zoologica Bulgarica
WoS Q Değeri
Scopus Q Değeri
Q4
Cilt
75
Sayı
2
