Breeding behavior of the Green-rumped Parrotlet.: An article from: Wilson Bulletin
Book Details
PublisherWilson Ornithological Society
ISBN / ASINB00091Y5BU
ISBN-13978B00091Y5B9
AvailabilityAvailable for download now
Sales Rank6,252,557
MarketplaceUnited States 🇺🇸
Description
This digital document is an article from Wilson Bulletin, published by Wilson Ornithological Society on March 1, 1992. The length of the article is 7154 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: We studied the breeding behavior of Green-rumped Parrotlets (Forpus passerinus) using nest boxes in the llanos of Venezuela. Aggressive and courtship displays, and nest prospecting behavior are described. Females occupied nest boxes for about 80% of daylight hours from shortly before egg laying through hatching (30-40 days), and did all incubating and brooding. Males spent nearly 80% of the time away from the nest, presumably foraging for their mates and chicks. Clutch sizes of females were correlated positively with the rate at which they were fed by males during egg laying. Clutches hatched asynchronously, and nestling growth and development was slow. Females stopped brooding when oldest chicks were one to two weeks of age to join their mates in feeding young, though the youngest chicks were at most a few days old. Food delivery rates by parents to young were related positively to brood size after all eggs had hatched. Most pairs (91%) remained mated throughout the breeding season. Mate replacement between years was more common ([greater than or equal to]31%). than half of the females that nested in the first part of the breeding season attempted second nests. Intervals between nesting attempts ([bar][chi] = 22 days) were correlated positively with the number of young fledging from first nests. Over three-quarters of the pairs that remained together and renested used the same nest box, even though intruders constantly attempted to obtain nest sites. Results are discussed in relation to the division of parental care and the high degree of pair cohesion exhibited by parrots. Received 9 April 1991, accepted I Oct. 1991.
From the supplier: Breeding behavior of Green-rumped parrotlets (Forpus passerinus) in a Venezuelan llanos was studied from 1988 to 1989. A high degree of differentiation in parental roles was seen, with the female doing all of the incubation and brooding, and the male doing most of the foraging at a stage when the female can hardly leave the nest. Courtship behavior seems to strengthen pair cohesion. This is essential in the competition for nest sites and ultimately for reproductive success, since the female and the brood are very dependent on the male for food at that stage of the breeding cycle.
Citation Details
Title: Breeding behavior of the Green-rumped Parrotlet.
Author: James R. Waltman
Publication:Wilson Bulletin (Refereed)
Date: March 1, 1992
Publisher: Wilson Ornithological Society
Volume: v104 Issue: n1 Page: p65(20)
Distributed by Thomson Gale
From the author: We studied the breeding behavior of Green-rumped Parrotlets (Forpus passerinus) using nest boxes in the llanos of Venezuela. Aggressive and courtship displays, and nest prospecting behavior are described. Females occupied nest boxes for about 80% of daylight hours from shortly before egg laying through hatching (30-40 days), and did all incubating and brooding. Males spent nearly 80% of the time away from the nest, presumably foraging for their mates and chicks. Clutch sizes of females were correlated positively with the rate at which they were fed by males during egg laying. Clutches hatched asynchronously, and nestling growth and development was slow. Females stopped brooding when oldest chicks were one to two weeks of age to join their mates in feeding young, though the youngest chicks were at most a few days old. Food delivery rates by parents to young were related positively to brood size after all eggs had hatched. Most pairs (91%) remained mated throughout the breeding season. Mate replacement between years was more common ([greater than or equal to]31%). than half of the females that nested in the first part of the breeding season attempted second nests. Intervals between nesting attempts ([bar][chi] = 22 days) were correlated positively with the number of young fledging from first nests. Over three-quarters of the pairs that remained together and renested used the same nest box, even though intruders constantly attempted to obtain nest sites. Results are discussed in relation to the division of parental care and the high degree of pair cohesion exhibited by parrots. Received 9 April 1991, accepted I Oct. 1991.
From the supplier: Breeding behavior of Green-rumped parrotlets (Forpus passerinus) in a Venezuelan llanos was studied from 1988 to 1989. A high degree of differentiation in parental roles was seen, with the female doing all of the incubation and brooding, and the male doing most of the foraging at a stage when the female can hardly leave the nest. Courtship behavior seems to strengthen pair cohesion. This is essential in the competition for nest sites and ultimately for reproductive success, since the female and the brood are very dependent on the male for food at that stage of the breeding cycle.
Citation Details
Title: Breeding behavior of the Green-rumped Parrotlet.
Author: James R. Waltman
Publication:Wilson Bulletin (Refereed)
Date: March 1, 1992
Publisher: Wilson Ornithological Society
Volume: v104 Issue: n1 Page: p65(20)
Distributed by Thomson Gale
