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Recent News and Articles on the Keywords: says study + sibling rivalry + parents  Related to the article below (Last Update: 5/5/2008)

Special Families, Special Needs
Nurse.com, VA - Apr 21, 2008
All parents who have more than one child have to deal with sibling arguments and sibling rivalry. Add to the equation one or more children with special ...

Irish Independent
Little brother (and sis) are being watched...
Irish Independent, Ireland - Apr 6, 2008
Latterly, Child of Our Time commenced its 20-year study with children born in 2000. Aisling Milton says such inspiration was clear in the concept of 21st ...
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Guardian, UK - Apr 10, 2008
While Zach once boasted that he was making more money than both his brothers combined (this has since changed), the brothers claim that sibling rivalry is ...
Television movies for the week of May 4
Pittsburgh Post Gazette, PA - May 3, 2008
Penniless artist Amedeo Modigliani maintains a bitter rivalry with Pablo Picasso and captures the heart of a higher-born Catholic woman. ...
Source: Google News

Life transitions and the adult sibling tie: A qualitative study -
IA Connidis - Journal of Marriage and the Family, 1992 - JSTOR
... together for lunch, but she never initiated that call to say 'How're ... Re- search Council
of Canada for their financial support of this study. ... Sibling solidarity ...

Sibling deidentification and split-parent identification: A family tetrad
FF Schachter - Sibling relationships: Their nature and significance across …, 1982 - books.google.com
... Everyday remarks suggested that when people say they are ... These studies (plus a related
study of Martens & White ... becoming different from one's sibling, can serve ...

Intense sibling loyalties
S Bank, MD Kahn - Sibling relationships: Their nature and significance across …, 1982 - books.google.com
... Most siblings will say that they have enduring relationships that involve staying
in touch with one another ... In a study of sibling rivalry among children aged ...

The Importance of the Sibling Experience -
PB Neubauer - Psychoanalytic Study of the Child, 1983 - PEP Web
... primary relationship; that is to say, that early ... In our study group, however, we
also considered the ... structure, particularly when the sibling interaction does ...

Sibling violence and agonistic interactions experienced by early adolescents -
B Roscoe, MP Goodwin, D Kennedy - Journal of Family Violence, 1987 - Springer
... As the study design was essentially exploratory, descriptive and nonparametric
statistical techniques (ie, x 2 tests) were used for ... sibling says to subject 67 ...

Owner-Manager Attitudes to Family and Business Issues: A 16 Country Study.
S Birley - Entrepreneurship: Theory and Practice, 2001 - questia.com
... the large number of replies from, say, Denmark, did ... Sibling rivalry within tire business
is good for the business. ... in italics are those selected for this study. ...

A Psychoanalytic Study of a Fraternal Twin
DW Orr - Psychoanalytic Quarterly, 1941 - PEP Web
... assume a priori that such a study would shed ... the so called healthy twins but these,
says the author ... He believes that sibling rivalry in twins arises earlier and ...

Differential environmental factors in anorexia nervosa: A sibling pair study -
F Murphy, NA Troop, JL Treasure - British Journal of Clinical Psychology, 2000 - ingentaconnect.com
... This is not to say that attempts to measure the ... to go out on dates than her una?ected
sibling is by no ... A controlled study of alexithymia in eating disorders. ...

A study of the development and course of schizophrenia in children -
ER Clardy - Psychiatric Quarterly, 1951 - Springer
... When spoken to, she would say, "That is ... FACTORS In considering etiology, a study
of indefinite ... overprotective or rejecting parents, or severe sibling rivalry. ...

Rivalry, Envy, and Jealousy -
PB Neubauer - Psychoanalytic Study of the Child, 1982 - PEP Web
... the developmental approach, that is to say, we selected to ... 2 years apart and to study
the mutual ... This approach stresses those sibling experiences which further ...

Source: Google Scholar

Parents show bias in sibling rivalry, says study

Most parents would hotly deny favouring one child over another but new research suggests they may have little choice in the matter.

Biologists studying a unique species of beetle that raises and cares for its young have found that parents instinctively favour the oldest offspring.

The University of Manchester research – published in Ecology this month – supports the findings of studies carried out on human families but is significant in that it suggests a wholly natural tendency towards older siblings.

“The burying beetle Nicrophorus vespilloides has a similar family structure to that of a human family unit in that there are two parents, a number of offspring and interactions between parents and their young,” said Dr Per Smiseth, who led the research in the University’s Faculty of Life Sciences.

“Of course human families are more complex and parent-child relationships are much more sophisticated. However, studying this beetle can help us understand the basic biological principles of how family relationships work.

“Our study looked at how the parent beetles mediate competition between different aged offspring compared to what happens when the young were left to fend for themselves and indicates that parental decisions are important in determining the outcome of competition between offspring.”

The beetles, which are native to Britain, give birth to a batch of about 20 young in the carcass of a dead animal over a period of 30 hours. The parents feed the young grubs on regurgitated flesh from the carcass.

The young beetles are able to feed themselves but they grow more quickly and become larger when fed by their parents. By generating experimental broods comprising two sets of offspring, one set of older grubs and one younger set, the scientists were able to study their development, first with the parents present and then when left to fend for themselves.

“When both sets of grubs were left to fend for themselves they grew at the same rate and matured to an equal size,” said Dr Smiseth, whose research is funded by the Natural Environment Research Council and the Medical Research Council.

“However, when we allow the parents to remain with the offspring, there is clear favouritism towards the older siblings, which grow at a faster rate as they take the lion’s share of their parents’ offerings.”

The team believes there are two explanations for the behaviour: the first is that the parents attach more value to the older offspring as their maturity gives them a better chance of survival than their younger siblings.

The second explanation is that the older grubs, being stronger, are able to dominate their younger rivals and, in doing so, better attract the attention of the parents when begging for food.

“Even if this second theory is true, the parents are still complicit in the bias towards the older siblings,” said Dr Smiseth. “However, the true answer is probably some combination of the two explanations.

“The research tells us something about the relationships within families. We have this view that families are harmonious and that the overriding concern is to help one another. This is true to an extent but it’s not to say that families are not without conflict, especially if the resources cannot be divided equitably.”

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Notes for editors:

A hi-res image of the adult beetle feeding its young is available on request.

 
 
 
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