Time-Energy Budgets During Reproduction and the Evolution of Single Parenting in the Superb Lyrebird

1986 ◽  
Vol 34 (3) ◽  
pp. 351 ◽  
Author(s):  
A Lill
Keyword(s):  
Growth Rate ◽  
Brood Size ◽  
Slow Growth ◽  
Bird Species ◽  
Egg Laying ◽  
Energy Budgets ◽  
Brood Care ◽  
Single Parenting ◽  
Slow Growth Rate ◽  
Small Brood

Estimated expenditures on brood-care by unassisted female superb lyrebirds, obtained through time-energy budgeting, were compared with published values for other bird species. With the exception of nestbuilding, estimated daily expenditures were relatively low, due mainly to the small brood size and low level of parental attentiveness. It is suggested that the traits which reduce daily brood-care expenditures, particularly the small brood size and extremely slow growth rate, may have evolved as adaptations which enabled deserted females operating close to maximal capacity to cope with single-parenting. Male parental involvement could probably increase the growth rate of the young, but not brood size; moreover, egg- laying was sufficiently asynchronous to afford multiple mating opportunities to parentally emancipated males. However, the slow growth rate of the young results in relatively large overall brood-care expenditures for females. Investments by males of up to 50% of daylight hours and 45% of BMR on singing at the height of the mating season were comparable with those of partially emancipated, polygynous males of other species. They probably reflect the high level of competition to control good display areas and to advertise status and quality to widely spaced females.

Video/Filmography on Single Parenting

1994 ◽  
Vol 20 (3-4) ◽  
pp. 483-498
Author(s):  
Lee C. Kimmons
Keyword(s):  
Single Parenting

Single Parenting in Families of Children with Disabilities

1994 ◽  
Vol 20 (3-4) ◽  
pp. 389-409 ◽  
Author(s):  
Glenna C. Boyce ◽  
Brent C. Miller ◽  
Karl R. White ◽  
Michael K. Godfrey
Keyword(s):  
Children With Disabilities ◽  
Single Parenting

Successful Single Parents

1993 ◽  
Vol 74 (5) ◽  
pp. 259-267 ◽  
Author(s):  
Myrna R. Olson ◽  
Judith A. Haynes
Keyword(s):  
Single Parents ◽  
Parental Role ◽  
Open Communication ◽  
Single Parenting ◽  
Family Unit ◽  
Single Parenthood ◽  
Supportive Family ◽  
State Region ◽  
Depth Interviews

This study explored the dynamics of successful single parenting through in-depth interviews with 26 single parents who were identified as successful by qualified professionals in a two-state region of the Midwest. The following themes for successful single parenthood emerged: (1) acceptance of responsibilities and challenges of single parenthood; (2) prioritization of the parental role; (3) consistent, nonpunitive discipline; (4) emphasis on open communication; (5) ability to foster individuality within a supportive family unit; (6) recognition of need for self-nurturance; and (7) dedication to rituals and traditions.

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