altricial

Definitions

  • WordNet 3.6
    • adj altricial (of hatchlings) naked and blind and dependent on parents for food
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Century Dictionary and Cyclopedia
    • altricial Being one of or belonging to the Altrices; having the nature of Altrices; hoterophagous.
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Usage

In literature:

Contrast praecocial and altricial birds.
"A Guide for the Study of Animals" by Worrallo Whitney
Note the helpless altricial young of the robin; the independent precocial young of the quail.
"Elementary Zoology, Second Edition" by Vernon L. Kellogg
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In science:

However, after hatching, although it has been shown that this hormone is involved in the control of parental behaviour in altricial birds (Silverin and Goldsmith, 1984; Hall et al., 1986; Schoech et al., 1996; Lormée et al., 1999), its role in precocial species is more controversial (Goldsmith, 1991).
Post-hatching parental care behaviour and hormonal status in a precocial bird
Thus, conversely to altricial species, this hormone was generally considered not to be involved in parental care during young-rearing in precocial birds (see Goldsmith, 1991 for a review).
Post-hatching parental care behaviour and hormonal status in a precocial bird
This decline of prolactinemia concomitant to the hen-brood bond disruption, gives strong arguments for a role of prolactin in promoting and/or maintaining post-hatching parental care as demonstrated for altricial species.
Post-hatching parental care behaviour and hormonal status in a precocial bird
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