A clutch of eggs refers to all the eggs produced by one bird or reptile at a single time, particularly those laid in a nest. In most Birds and Reptiles an egg ( Latin ovum) is the Zygote, resulting from Fertilization of the Ovum. Birds ( class Aves) are bipedal endothermic ( Warm-blooded) Vertebrate animals that lay eggs. Reptiles, or members of the class Reptilia are air-breathing Cold-blooded Vertebrates that have skin covered in scales as opposed to hair or feathers A nest is a place of refuge to hold an animal's eggs and/or provide a place to raise their offspring
Clutch size
Clutch size will differ greatly between species, sometimes even within the same genus. In Biology, a species is one of the basic units of Biological classification and a Taxonomic rank. A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic It may also differ within the same species due to many factors including habitat, health, nutrition, predation pressures, and time of year[1]. In Biology, a species is one of the basic units of Biological classification and a Taxonomic rank. A habitat (which is Latin for "it inhabits" is an Ecological or environmental area that is inhabited by a particular Species. Clutch size variation can also reflect variation in optimal reproduction effort. Long lived species tend to have smaller clutch sizes than short lived species. (See also r/K selection theory) The evolution of optimal clutch size is also driven by other factors such as Parent-offspring conflict. In Ecology, r/K selection theory relates to the selection of traits which promote success in particular environments Parent-offspring conflict is a term used to signify the Evolutionary conflict arising from differences in optimal fitness of Parents and their Offspring
Clutch size recorded in ornithological field notes may or may not include lost or broken eggs. Ornithology (from Greek ὄρνις ὄρνιθος ornis, ornithos, "bird" and λόγος logos, "knowledge" is the branch of
.JPG/120px-Anas_platyrhynchos_(nest).JPG) Mallard (Anas platyrhynchos), very large clutch or possibly from two females |
 Great Black-backed Gull (Larus marinus), small clutch |
 Masked Lapwing (Vanellus miles), typical clutch |
 Common Moorhen (Gallinula chloropus), small clutch |
 Lesser Spotted Eagle (Aquila pomarina), typical clutch |
 Feral Pigeon (Columba livia domestica), typical clutch |
 European Starling (Sturnus vulgaris), small clutch |
 European Goldfinch (Carduelis carduelis), large clutch |
References
- ^ Lack (1947)
References
- Lack, David (1947): The significance of clutch-size (part I-II). The Mallard ( Anas platyrhynchos) probably the best-known and most recognizable of all ducks is a Dabbling duck which breeds throughout the Temperate The Great Black-backed Gull, Larus marinus, is a very large Gull which breeds on the European and North American coasts and islands of the The Masked Lapwing ( Vanellus miles) previously known as the Masked Plover and often called simply "the Plover" in its native range is a The Common Moorhen ( Gallinula chloropus) is a Bird in the Rail family with an almost worldwide distribution outside Australasia as well The Lesser Spotted Eagle ( Aquila pomarina) is a large Eastern European Bird of prey. Feral pigeons, also called city doves, city pigeons or street pigeons, are derived from Domestic pigeons that have returned to the wild The European Starling, Common Starling or just Starling, Sturnus vulgaris, is a Passerine Bird in the family The Goldfinch or European Goldfinch ( Carduelis carduelis) is a small Passerine Bird in the Finch family David Lambert Lack FRS, ( 16 July 1910 – 12 March 1973) was a British Ornithologist and Biologist Ibis 89: 302-352. Ibis, subtitled "the International Journal of Avian Science" is the peer-reviewed Scientific journal of the British Ornithologists' Union
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