About: Fraser Darling effect     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:FootballLeagueSeason, within Data Space : dbpedia.org associated with source document(s)
QRcode icon
http://dbpedia.org/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FFraser_Darling_effect

The Fraser Darling effect is the simultaneous and shortened breeding season that occurs in large colonies of birds. This synchronized and accelerated breeding leads to a greater chance of survival for each individual offspring. The effect is named after Sir Frank Fraser Darling who proposed it in 1938. While studying herring gulls off the English coast, Fraser Darling noticed that individual gulls rarely raised their young past the fledgling stage. This led him to the conclusion that the birds received sexual stimulation not only from their mates but also from other birds of the same species.

AttributesValues
rdf:type
rdfs:label
  • Fraser Darling effect (en)
rdfs:comment
  • The Fraser Darling effect is the simultaneous and shortened breeding season that occurs in large colonies of birds. This synchronized and accelerated breeding leads to a greater chance of survival for each individual offspring. The effect is named after Sir Frank Fraser Darling who proposed it in 1938. While studying herring gulls off the English coast, Fraser Darling noticed that individual gulls rarely raised their young past the fledgling stage. This led him to the conclusion that the birds received sexual stimulation not only from their mates but also from other birds of the same species. (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Gullisland.jpg
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
sameAs
dbp:wikiPageUsesTemplate
thumbnail
has abstract
  • The Fraser Darling effect is the simultaneous and shortened breeding season that occurs in large colonies of birds. This synchronized and accelerated breeding leads to a greater chance of survival for each individual offspring. The effect is named after Sir Frank Fraser Darling who proposed it in 1938. While studying herring gulls off the English coast, Fraser Darling noticed that individual gulls rarely raised their young past the fledgling stage. This led him to the conclusion that the birds received sexual stimulation not only from their mates but also from other birds of the same species. In 1956, a study conducted by Colson and White on the mating patterns of kittiwake showed that the effect only extended for two metres and that, for groups of birds who nested more sparsely, a longer breeding time was evident in the population as a whole. However, this particular species nested in areas that were hard for predators to reach and therefore relied less on this phenomenon than other species that were more vulnerable to predation. In 1968, while studying gulls, Horn found that "clumped nesting improves foraging efficiency and predation avoidance only when the colony is built in a large expanse of nesting habitat, surrounded by abundant, but patchily distributed food." Since Fraser Darling's initial observation, the phenomenon has also been observed in Brewer's blackbirds, European herring gulls, black-headed gulls, and gannets; however, other studies conducted since have not been able to confirm it in other various species of gulls. (en)
gold:hypernym
prov:wasDerivedFrom
page length (characters) of wiki page
foaf:isPrimaryTopicOf
is Link from a Wikipage to another Wikipage of
is Wikipage redirect of
is foaf:primaryTopic of
Faceted Search & Find service v1.17_git139 as of Feb 29 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.03.3330 as of Mar 19 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (62 GB total memory, 43 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software