The ghost of social environments past: dominance relationships include current interactions and experience carried over from previous groups.

نویسندگان

  • Colby J Tanner
  • Gul Deniz Salali
  • Andrew L Jackson
چکیده

Dominance hierarchies pervade animal societies. Within a static social environment, in which group size and composition are unchanged, an individual's hierarchy rank results from intrinsic (e.g. body size) and extrinsic (e.g. previous experiences) factors. Little is known, however, about how dominance relationships are formed and maintained when group size and composition are dynamic. Using a fusion-fission protocol, we fused groups of previously isolated shore crabs (Carcinus maenas) into larger groups, and then restored groups to their original size and composition. Pre-fusion hierarchies formed independently of individuals' sizes, and were maintained within a static group via winner/loser effects. Post-fusion hierarchies differed from pre-fusion ones; losing fights during fusion led to a decline in an individual's rank between pre- and post-fusion conditions, while spending time being aggressive during fusion led to an improvement in rank. In post-fusion tanks, larger individuals achieved better ranks than smaller individuals. In conclusion, dominance hierarchies in crabs represent a complex combination of intrinsic and extrinsic factors, in which experiences from previous groups can carry over to affect current competitive interactions.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Design solutions for children's play space is based on identifying environmental and non-environmental components affecting children's emotional and social intelligence.

Play space is one of the child's favorite spaces that greatly affects the child's mental state and the proper design of these environments can improve their emotional intelligence. Emotional intelligence is the capacity or ability to organize the feelings and emotions of oneself and others, to motivate oneself and effectively control one's emotions and use them in relationships with others. The...

متن کامل

Physical Activity in the Elderly with Fall Experience Over the Past Year: Results from Amirkola Health and Ageing Project

Background and purpose: Nowadays, immobility is known to be the fourth risk factor for mortality. The aim of the present study was to investigate the relationship between fall experience over the previous year and levels of physical activity in the elderly. Materials and Methods: The study was performed with 1616 participants of 60≤ years. The relationship between physical activities in the el...

متن کامل

Bioarchaeology: Scientific Studies of Archaeological Human Skeletal Remains

Bioarchaeology is an interdisciplinary academic specialty, which through the scientific analysis and interpretation of archaeological human skeletal remains, bridges the link between the biological sciences, medicine, anthropology and social sciences. The cornerstone of bioarchaeology is the interaction between culture and human biology. Since the study of people and ancient societies is one of...

متن کامل

Experiences and challenges of girls with a history of cohabitation

Background  The process of modernization and globalization and changes in the value system have gradually given rise to new and unusual patterns of relationships among some Iranian youth. One of the most extreme forms of premarital relationships is the emergence of cohabitation patterns. A model of a relationship that has deep Western roots, stemming from social and economic developments, espe...

متن کامل

Experiences and challenges of girls with a history of cohabitation

Background  The process of modernization and globalization and changes in the value system have gradually given rise to new and unusual patterns of relationships among some Iranian youth. One of the most extreme forms of premarital relationships is the emergence of cohabitation patterns. A model of a relationship that has deep Western roots, stemming from social and economic developments, espe...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Biology letters

دوره 7 6  شماره 

صفحات  -

تاریخ انتشار 2011