This idea was tested in a 2*2 factorial experiment in wild-caught captive greenfinches (Carduelis chloris), injected with bacterial lipopolysaccharide (LPS) and/or temporarily exposed to an image of a predator. We predicted that LPS injection would reduce both types of activity via induction of...
The song of greenfinches is not stereotyped: a given song element may be followed alternately by different element types. Within a breeding area most males sing the same element types. The following general features are characteristic for all songs studied: 1) size of the repertoire (30 - 35...
Below are some examples of different kinds of bird beaks and their uses. Beaks of Passerines Seed Eaters:Grosbeaks, finches - have short, thick bills that can crush hard seed Foliage Gleaners:Warblers, orioles, vireos - have longer, thin bills that can reach farther to pick an insect off a...
Inthefincheswithlong,probingbeaks,researchersfoundatworkadifferentgene,knownas calmodulin. 研究者们发现,在其喙长而擅长探取的雀中,有另外一种叫做卡莫杜林(calmodulin)的基因非常活跃。 blog.sina.com.cn 3. However, thebiologicalliteratureshowsthatdifferentgenepairshavedifferenttimedelays forgeneregulation. ...
B.Greenfinches.C.Wood pigeons.D.Blackbirds.(3)What did Rebecca Speight call on people to do? AA.Enjoy birdsong in nature.B.Reconnect with each other.C.Listen to different music.D.Learn gardening in spring. 答案细节理解题。(1)根据第二段More than 11 million birds were coun...
In fact, the aviary itself is divided into three sections according to the average size of the birds. The ‘Small’ section holds critters like finches, sparrows, and hummingbirds. The ‘Medium’ area holds the sun conures, fish-eating diving birds (the name of which I don’t recall),...
(Rubin & Umanath,2015). This form of memory has been shown to be involved in decisions of apes and zebra finches (Taeniopygia guttata)(Larose & Dubois,2011; Lewis et al.,2017). The details of scenes can be further reduced to a simple association between an individual and a rewarding ...
Species recognition in Darwin's finches (Geospiza, Gould). III. Male responses to playbacks of different song types, dialects and heterospecific songs. Anim Behav 33:290-307.Ratcliffe LM, Grant PR. 1983. Species recognition in Dar- win's finches (Geospiza, Gould) I. Discrimination by mor-...
We also studied the influence of nest features and habitat selection on predation of both nest types. Trumpeter finches built more nests in cliffs in Tabernas, probably because there are more cliffs available there. In this locality, the patches selected for ground nesting had below-average ...
Road, South ParksArbor, AnnRatcliffe, L. M., and P. R. Grant. 1985. Species recognition in Darwin's finches: male responses to playback of different song types, dialects and heterospecific songs. Animal Behaviour 33:290-307.