Ontogeny of spatial relationships and social behaviour in juvenile Richardson's ground squirrels

1981 ◽  
Vol 59 (9) ◽  
pp. 1666-1676 ◽  
Author(s):  
Gail R. Michener
Keyword(s):  
Social Interactions ◽  
Social Behaviour ◽  
Ground Squirrels ◽  
Spatial Proximity ◽  
Family Unit ◽  
Social Patterns ◽  
Rapid Acquisition ◽  
The Family ◽  
Core Areas ◽  
Close Spatial Proximity

The development of spatial and social patterns by juvenile Richardson's ground squirrels, from first emergence from the natal burrow to entry into hibernation, is described. Juveniles enter the aboveground population at [Formula: see text] weeks of age. During the next 4 weeks juveniles remain in close spatial proximity to family members with whom they engage in frequent amicable social interactions. Thereafter, juveniles become increasingly independent from the family unit, establishing their own spatially distinct core areas and exhibiting site-dependent dominance toward nonkin. Typically juveniles remain physically closer to and more amicable with littermates and mother than other conspecifics such that they compose kin clusters, the members of which are agonistic toward members of adjacent kin clusters. Daughters are more likely to continue to reside close to kin as adults than are sons. At 9–10 weeks of age juveniles exhibit the majority of spatial and social patterns characteristic of adults, and at 12 weeks they are behaviourally indistinguishable from adults. Similar rapid acquisition of adult patterns occurs in four other species of ground-dwelling sciurids that are also obligate hibernators and that breed immediately following emergence from their first hibernation.

scholarly journals Involvement of loop 5 lysine residues and the N-terminal β-hairpin of the ribotoxin hirsutellin A on its insecticidal activity

2016 ◽  
Vol 397 (2) ◽  
pp. 135-145 ◽  
Author(s):  
Miriam Olombrada ◽  
Lucía García-Ortega ◽  
Javier Lacadena ◽  
Mercedes Oñaderra ◽  
José G. Gavilanes ◽  
...  
Keyword(s):  
Active Sites ◽  
Structural Changes ◽  
The Other ◽  
Spatial Proximity ◽  
Ribonucleolytic Activity ◽  
The Family ◽  
Lysine Residues ◽  
Hirsutella Thompsonii ◽  
Close Spatial Proximity ◽  
High Degree

Abstract Ribotoxins are cytotoxic members of the family of fungal extracellular ribonucleases best represented by RNase T1. They share a high degree of sequence identity and a common structural fold, including the geometric arrangement of their active sites. However, ribotoxins are larger, with a well-defined N-terminal β-hairpin, and display longer and positively charged unstructured loops. These structural differences account for their cytotoxic properties. Unexpectedly, the discovery of hirsutellin A (HtA), a ribotoxin produced by the invertebrate pathogen Hirsutella thompsonii, showed how it was possible to accommodate these features into a shorter amino acid sequence. Examination of HtA N-terminal β-hairpin reveals differences in terms of length, charge, and spatial distribution. Consequently, four different HtA mutants were prepared and characterized. One of them was the result of deleting this hairpin [Δ(8-15)] while the other three affected single Lys residues in its close spatial proximity (K115E, K118E, and K123E). The results obtained support the general conclusion that HtA active site would show a high degree of plasticity, being able to accommodate electrostatic and structural changes not suitable for the other previously known larger ribotoxins, as the variants described here only presented small differences in terms of ribonucleolytic activity and cytotoxicity against cultured insect cells.

scholarly journals Dynamic networks of fighting and mating in a wild cricket population

2018 ◽  
Author(s):  
David N. Fisher ◽  
Rolando Rodríguez-Muñoz ◽  
Tom Tregenza
Keyword(s):  
Social Interactions ◽  
Mating Success ◽  
Dynamic Networks ◽  
Interaction Network ◽  
Spatial Proximity ◽  
Structure Changes ◽  
Animal Populations ◽  
Mating Interaction ◽  
Close Spatial Proximity ◽  
Changes Over Time

AbstractReproductive success is often highly skewed in animal populations. Yet the processes leading to this are not always clear. Similarly, connections in animal social networks are often non-randomly distributed, with some individuals with many connections and others with few, yet whether there are simple explanations for this pattern has not been determined. Numerous social interactions involve dyads embedded within a wider network. As a result, it may be possible to model which individuals accumulate social interaction through a more general understanding of the social network’s structure, and how this structure changes over time. We analysed fighting and mating interactions across the breeding season in a population of wild field crickets under surveillance from a network of video cameras. We fitted stochastic actor-oriented models to determine the dynamic process by which networks of cricket fighting and mating interactions form, and how they co-influence each other. We found crickets tended to fight those in close spatial proximity to them, and those possessing a mutual connection in the fighting network, and heavier crickets fought more often. We also found that crickets who mate with many others tended to fight less in the following time period. This demonstrates that a mixture of spatial constraints, characteristics of individuals and characteristics of the immediate social environment are key for determining social interactions. The mating interaction network required very few parameters to understand its growth and so structure; only homophily by mating success was required to simulate the skew of mating interactions seen in this population. This demonstrates that relatively simple, but dynamic processes can give highly skewed distributions of mating success.

Aboriginal Concepts of the Family

1993 ◽  
Vol 18 (1) ◽  
pp. 26-28 ◽  
Author(s):  
Yolanda Walker
Keyword(s):  
Social Behaviour ◽  
Aboriginal People ◽  
Family Unit ◽  
The Family ◽  
The World ◽  
Family Breakdown

The Aboriginal family unit has seen many changes since European invasion. Like families all over the world, the Aboriginal family is the place where social behaviour is constructed, interpreted and transmitted from one generation to another. This is a process which has continued since the invasion of white man. Aboriginal people see the family as a place of nurturing, with the ability to provide and teach. When one or both of these factors is not functioning adequately, a family breakdown can occur.

Social ethology of the wolverine

2018 ◽  
Author(s):  
Jeffrey P. Copeland ◽  
Arild Landa ◽  
Kimberly Heinemeyer ◽  
Keith B. Aubry ◽  
Jiska van Dijk ◽  
...  
Keyword(s):  
Social Organization ◽  
Social Interactions ◽  
Resource Availability ◽  
Social Behaviour ◽  
Social System ◽  
Group Living ◽  
Field Studies ◽  
Ecological Framework ◽  
The Social ◽  
Living Species

Social behaviour in solitary carnivores has long been an active area of investigation but for many species remains largely founded in conjecture compared to our understanding of sociality in group-living species. The social organization of the wolverine has, until now, received little attention beyond its portrayal as a typical mustelid social system. In this chapter the authors compile observations of social interactions from multiple wolverine field studies, which are integrated into an ecological framework. An ethological model for the wolverine is proposed that reveals an intricate social organization, which is driven by variable resource availability within extremely large territories and supports social behaviour that underpins offspring development.

Digital Pollution and Its Impact on the Family and Social Interactions

2021 ◽  
pp. 0192513X2098555
Author(s):  
Shiv Ratan Agrawal
Keyword(s):  
Social Interaction ◽  
Social Interactions ◽  
Critical Dimensions ◽  
Digital Devices ◽  
The Family ◽  
Negative Effect ◽  
Potential Negative Effect ◽  
Human Attitude ◽  
Impact On Family ◽  
And Behavior

The present study was an attempt to identify the most prevailing means of digital devices and its impact as digital pollution on family and social interactions. Despite the obvious benefits of digital devices, in recent years researchers have taken more concern about its potential negative effect on human attitude and behavior, which in turn affects our society. A total of 613 usable responses were collected from Bangalore, India of excessive users of digital devices, such as a smartphone, computer/laptop, and television. All statistical analyses were performed using SPSS 23.0, AMOS 23.0, and SmartPLS 3.0. The results indicated that as the use of smartphone and computer/laptop increases, levels of digital pollution also increase, which in turn significantly triggers unfavorable impact on family and social interactions. The study indicated that digital pollution appears as an important predictor, which significantly affects social interaction unfavorably. The present study explored the various critical dimensions within this domain and delineated gaps in our knowledge of digital pollution. It was found that smartphones are more responsible for digital pollution among all the identified digital devices, followed by computer/laptop.

scholarly journals Implications of multiple mating for offspring relatedness and shoaling behaviour in juvenile guppies

2008 ◽  
Vol 4 (6) ◽  
pp. 623-626 ◽  
Author(s):  
Jonathan P Evans ◽  
Jennifer L Kelley
Keyword(s):  
Social Interactions ◽  
Artificial Insemination ◽  
Social Behaviour ◽  
Poecilia Reticulata ◽  
Multiple Mating ◽  
Potential Cost ◽  
Close Proximity ◽  
Shoaling Behaviour

Polyandry (female multiple mating) can confer important benefits to females, but few studies have considered its potential costs. One such cost may arise through differences in the relatedness of offspring born to females with different mating histories; offspring born to monandrous females are always full siblings, while those produced by polyandrous females may be full or half siblings. These differences may have important consequences for social interactions among offspring. We used artificial insemination in the guppy ( Poecilia reticulata ), a promiscuous live-bearing fish, to evaluate shoaling behaviour in polyandrous and monandrous broods. We combined this information with known parentage data for the polyandrous broods to determine whether sibling relatedness influenced offspring shoaling behaviour. While we detected no effect of mating treatment (polyandry/monandry) on shoaling behaviour, we found that pairs of full siblings spent significantly more time shoaling (and in close proximity) than pairs of half siblings. This latter finding confirms the ability of newborn guppies to distinguish brood mates on the basis of kinship, but also suggests an important and hitherto unrealized potential cost of polyandry: a reduction in within-brood relatedness with potentially important implications for offspring social behaviour.

Duplicity and posthegemony in Claudia Llosa’s Madeinusa and Lucrecia Martel’s La niña santa

2021 ◽  
Vol 21 (2) ◽  
pp. 209-236
Author(s):  
Vedrana Lovrinović ◽  
Mario Županović
Keyword(s):  
Social Development ◽  
Social Interactions ◽  
La Niña ◽  
Feminist Critique ◽  
La Nina ◽  
The Family ◽  
Female Protagonist

This article employs the concepts of duplicity and posthegemony to analyse intimate and social interactions in Lucrecia Martel’s La niña santa [The Holy Girl] (2004) and Claudia Llosa’s Madeinusa (2005), focusing in particular on the personal and social development of each film’s female protagonist. By viewing the films through the psychoanalytic concepts of duplicity as defined by Harold Kelman and posthegemony as defined by Jon Beasley-Murray, we distinguish how each female protagonist strives toward posthegemonic status while adopting opposite approaches to duplicity. This is to say that Amalia entirely eschews duplicity while Madeinusa plays upon the liminalities of moral doubleness. In elaborating this argument, we will also demonstrate that both films represent a feminist critique of hegemony in which the emergent and emancipative subject liberates herself from the patriarchal apparatuses of the family, religion and community.

Lessons from the family unit in paediatric heart transplantation: can we do better?

2021 ◽  
pp. archdischild-2021-322101
Author(s):  
Hanna J Tadros ◽  
Alana R Rawlinson ◽  
Dipankar Gupta
Keyword(s):  
Heart Transplantation ◽  
Family Unit ◽  
The Family

Experience and impact of the 1-2-3 magic parent programme for children with ADHD on the family unit from the mothers’ perspectives: A narrative analysis

2021 ◽  
pp. 136749352110399
Author(s):  
Stephanie Allen ◽  
Stephen K Bradley ◽  
Eileen Savage
Keyword(s):  
Narrative Analysis ◽  
Family Members ◽  
Study Data ◽  
Unintended Consequences ◽  
Structured Interviews ◽  
Children With Adhd ◽  
Family Unit ◽  
The Family ◽  
Narrative Constructions ◽  
The Impact

Parent programmes are often used in the clinical management of children with ADHD. Research into parent programmes has predominantly been concerned with their effectiveness and much less attention has been paid to the impact that they may be having on the family and the inter-relationships between family members. This study explores the perspectives and experiences of parents of children with ADHD, who participated in a parent programme, including its impact on the family unit. A purposive sample of six mothers of children with ADHD who completed a 1-2-3 Magic parent programme in Ireland was invited to take part in this qualitative study. Data were collected by means of individual in-depth, semi-structured interviews and a narrative inquiry approach further informed analysis of the interview data. Two major narrative constructions of experience: ‘parent programme as positive’ and ‘parent programme as negative’ were identified. Outcomes from this study illustrated some unintended consequences caused by the parent programme (i.e. sibling rivalry and conflict arising between family members). Mothers believed that the parent programme was a beneficial intervention, but it was not without its flaws and they felt it was helpful for their family when used in conjunction with other supports and mediations.

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