Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q17011780> ?p ?o }
Showing triples 1 to 73 of
73
with 100 triples per page.
- Q17011780 subject Q15179722.
- Q17011780 subject Q6966058.
- Q17011780 subject Q8734020.
- Q17011780 abstract "Sexual selection in birds concerns how birds have evolved a variety of mating behaviors, with the peacock tail being perhaps the most famous example of sexual selection and the Fisherian runaway. Commonly occurring sexual dimorphisms such as size and color differences are energetically costly attributes that signal competitive breeding situations. Many types of avian sexual selection have been identified; intersexual selection, also known as female choice; and intrasexual competition, where individuals of the more abundant sex compete with each other for the privilege to mate. Sexually selected traits often evolve to become more pronounced in competitive breeding situations until the trait begins to limit the individual’s fitness. Conflicts between an individual fitness and signaling adaptations ensure that sexually selected ornaments such as plumage coloration and courtship behavior are “honest” traits. Signals must be costly to ensure that only good-quality individuals can present these exaggerated sexual ornaments and behaviors.Bird species often demonstrate intersexual selection, perhaps because - due to their lightweight body structures - fights between males may be ineffective or impractical. Therefore, male birds commonly use the following methods to try to seduce the females:Colour: Some species have ornate, diverse, and often colourful feathers.Song: Male birdsong provides an important way of protecting territory (intrasexual selection).Nest construction: In some species, males build nests that females subject to rigorous inspection, choosing the male that makes the most attractive nest.Dance: Males dance in front of females. Cranes provide a well-known example.As a propagandist, the cock behaves as though he knew that it was as advantageous to impress the males as the females of his species, and a sprightly bearing with fine feathers and triumphant song are quite as well adapted for war-propaganda as for courtship. —Ronald Fisher, 1930In some bird species, both the male and the female contribute a great deal to offspring-care. In these cases, the male and female will be continuously assessing each other based on sexual characteristics. In the blue-footed booby, the females tend to choose males with brighter blue feet, because birds with brighter feet are younger, and thus have greater fertility and ability to provide paternal care. When researchers put make-up on the males' feet to make them look duller after the laying of the first eggs, their mates consequently laid smaller second eggs, which shows that female boobies continuously evaluate their mates' reproductive value. Males also vary their behaviour based on the females' foot colour. Males mated to females with brighter feet are more willing to incubate their eggs.".
- Q17011780 thumbnail Male_greater_frigate_bird_displaying.jpg?width=300.
- Q17011780 wikiPageWikiLink Q1021740.
- Q17011780 wikiPageWikiLink Q1050992.
- Q17011780 wikiPageWikiLink Q1063.
- Q17011780 wikiPageWikiLink Q1083170.
- Q17011780 wikiPageWikiLink Q10968643.
- Q17011780 wikiPageWikiLink Q1126556.
- Q17011780 wikiPageWikiLink Q1140126.
- Q17011780 wikiPageWikiLink Q1166020.
- Q17011780 wikiPageWikiLink Q1428558.
- Q17011780 wikiPageWikiLink Q1483612.
- Q17011780 wikiPageWikiLink Q15179722.
- Q17011780 wikiPageWikiLink Q1541064.
- Q17011780 wikiPageWikiLink Q1584142.
- Q17011780 wikiPageWikiLink Q17145.
- Q17011780 wikiPageWikiLink Q17147.
- Q17011780 wikiPageWikiLink Q171655.
- Q17011780 wikiPageWikiLink Q181497.
- Q17011780 wikiPageWikiLink Q1816486.
- Q17011780 wikiPageWikiLink Q189998.
- Q17011780 wikiPageWikiLink Q191907.
- Q17011780 wikiPageWikiLink Q201251.
- Q17011780 wikiPageWikiLink Q206913.
- Q17011780 wikiPageWikiLink Q215603.
- Q17011780 wikiPageWikiLink Q228395.
- Q17011780 wikiPageWikiLink Q25341.
- Q17011780 wikiPageWikiLink Q25365.
- Q17011780 wikiPageWikiLink Q25485.
- Q17011780 wikiPageWikiLink Q25740.
- Q17011780 wikiPageWikiLink Q26650.
- Q17011780 wikiPageWikiLink Q2916569.
- Q17011780 wikiPageWikiLink Q297115.
- Q17011780 wikiPageWikiLink Q3052004.
- Q17011780 wikiPageWikiLink Q31431.
- Q17011780 wikiPageWikiLink Q3303665.
- Q17011780 wikiPageWikiLink Q331065.
- Q17011780 wikiPageWikiLink Q36961.
- Q17011780 wikiPageWikiLink Q3918859.
- Q17011780 wikiPageWikiLink Q410884.
- Q17011780 wikiPageWikiLink Q420813.
- Q17011780 wikiPageWikiLink Q420841.
- Q17011780 wikiPageWikiLink Q42395.
- Q17011780 wikiPageWikiLink Q427512.
- Q17011780 wikiPageWikiLink Q457267.
- Q17011780 wikiPageWikiLink Q4763567.
- Q17011780 wikiPageWikiLink Q4785.
- Q17011780 wikiPageWikiLink Q5113.
- Q17011780 wikiPageWikiLink Q520619.
- Q17011780 wikiPageWikiLink Q525818.
- Q17011780 wikiPageWikiLink Q659503.
- Q17011780 wikiPageWikiLink Q6901585.
- Q17011780 wikiPageWikiLink Q6966058.
- Q17011780 wikiPageWikiLink Q728.
- Q17011780 wikiPageWikiLink Q736313.
- Q17011780 wikiPageWikiLink Q74560.
- Q17011780 wikiPageWikiLink Q746986.
- Q17011780 wikiPageWikiLink Q754863.
- Q17011780 wikiPageWikiLink Q757013.
- Q17011780 wikiPageWikiLink Q830385.
- Q17011780 wikiPageWikiLink Q836833.
- Q17011780 wikiPageWikiLink Q842599.
- Q17011780 wikiPageWikiLink Q8734020.
- Q17011780 wikiPageWikiLink Q901568.
- Q17011780 wikiPageWikiLink Q942728.
- Q17011780 type Thing.
- Q17011780 comment "Sexual selection in birds concerns how birds have evolved a variety of mating behaviors, with the peacock tail being perhaps the most famous example of sexual selection and the Fisherian runaway. Commonly occurring sexual dimorphisms such as size and color differences are energetically costly attributes that signal competitive breeding situations.".
- Q17011780 label "Sexual selection in birds".
- Q17011780 seeAlso Q249240.
- Q17011780 depiction Male_greater_frigate_bird_displaying.jpg.