scholarly journals Effects of frond length on diverse gastropod assemblages in coralline turf

2003 ◽  
Vol 83 (1) ◽  
pp. 159-163 ◽  
Author(s):  
Brendan P. Kelaher
Keyword(s):  
Habitat Structure ◽  
Rocky Shore ◽  
Negative Relationship ◽  
Total Abundance ◽  
Faunal Assemblages ◽  
Vertical Scale ◽  
Abundance And Diversity ◽  
Frond Length ◽  
Sydney Australia

Habitat mimics were used to investigate the role of coralline algal frond length in determining spatial patterns in diverse gastropod assemblages on a rocky shore near Sydney, Australia. Frond length represents the vertical scale component of habitat structure, which is rarely experimentally manipulated. Length of fronds did not explain differences between gastropod assemblages at different tidal heights or among patches of turf separated by tens of metres in mid-shore areas. In contrast, changes in frond length caused large differences in the structure of gastropod assemblages in low-shore areas. Contrary to previous studies, the total abundance and diversity of gastropods was greater in turf with short fronds than with long fronds. Possible mechanisms for this negative relationship are discussed. Overall, the vertical scale component of habitat structure can have strong effects on associated faunal assemblages, but the magnitude of these effects depend heavily on local environmental conditions (e.g. different tidal heights).

Biodiversity among mussels: separating the influence of sizes of mussels from the ages of patches

2007 ◽  
Vol 87 (2) ◽  
pp. 551-557 ◽  
Author(s):  
N.E. O'Connor ◽  
T.P. Crowe
Keyword(s):  
Species Richness ◽  
Habitat Structure ◽  
Size Structure ◽  
Mussel Beds ◽  
Faunal Assemblages ◽  
Lower Abundance ◽  
Invertebrate Assemblages ◽  
Context Dependent

The role of habitat structure in controlling the composition of assemblages has often been studied, but is rarely manipulated so that it is distinguishable from other factors. Differences in habitat structure as determined by differences in mussel size structure may affect the diversity of assemblages associated with mussel beds. Previous studies examining the effect of the size of individual mussels in a patch on the diversity of associated macro-faunal assemblages confounded the age of the patch with the size of the mussels. We manipulated the age of mussel patches and the size of the mussels within them to test experimentally whether the size of mussels influenced the structure of associated assemblages. At one of the two locations considered, the structure of macro-faunal assemblages in patches of larger mussels differed significantly from those in patches of the same age composed of smaller mussels. At this location, the size of mussels did not affect species richness but the abundance and proportion of organisms present differed depending on the size of the mussels. Here patches of larger mussels contained greater numbers of Nematodes and Oligochaetes and a lower abundance of taxa such as Jaera forsmani and Lepidonotus clava. We also found that invertebrate assemblages in general differed between the two locations. The effect of the size structure of mussels, however, varied spatially demonstrating that the effect of habitat structure on the diversity of associated assemblages is context dependent.

scholarly journals White Pop, Shiny Armour and a Sling and Stone: Indigenous Expressions of Contemporary Congregational Song Exploring Christian-Māori Identity

Religions ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 123
Author(s):  
Shannon Said
Keyword(s):  
Hip Hop ◽  
Minority Groups ◽  
Cultural Backgrounds ◽  
Congregational Song ◽  
Christian Worship ◽  
Pentecostal Churches ◽  
The Relationship ◽  
Sydney Australia

It has taken many years for different styles of music to be utilised within Pentecostal churches as acceptable forms of worship. These shifts in musical sensibilities, which draw upon elements of pop, rock and hip hop, have allowed for a contemporisation of music that functions as worship within these settings, and although still debated within and across some denominations, there is a growing acceptance amongst Western churches of these styles. Whilst these developments have taken place over the past few decades, there is an ongoing resistance by Pentecostal churches to embrace Indigenous musical expressions of worship, which are usually treated as token recognitions of minority groups, and at worst, demonised as irredeemable musical forms. This article draws upon interview data with Christian-Māori leaders from New Zealand and focus group participants of a diaspora Māori church in southwest Sydney, Australia, who considered their views as Christian musicians and ministers. These perspectives seek to challenge the relationship between Indigenous and non-Indigenous relations within a church setting and create a more inclusive philosophy and practice towards being ‘one in Christ’ with the role of music as worship acting as a case study throughout. It also considers how Indigenous forms of worship impact cultural identity, where Christian worship drawing upon Māori language and music forms has led to deeper connections to congregants’ cultural backgrounds.

Characteristics of educators’ talk about decontextualised events

2020 ◽  
Vol 45 (4) ◽  
pp. 362-376
Author(s):  
Rebecca Andrews ◽  
Penny Van Bergen
Keyword(s):  
Communication Skills ◽  
Future Event ◽  
Time Points ◽  
Long Day ◽  
Future Events ◽  
Day Care Centres ◽  
Highly Correlated ◽  
Children’S Thinking ◽  
Sydney Australia

This study investigated the characteristics of educators’ talk about decontextualised events with young children in seven early childhood long day care centres in Sydney, Australia. Educators were partnered with up to six children aged between 27 and 60 months. Across two time points, 85 educator–child dyads discussed past and future events. Educators’ use of questions, contextual statements, evaluations and prompts and children’s use of questions, open-ended responses, yes-no responses and spontaneous information statements were examined. Educators’ evaluative statements were highly correlated and educators’ questions were moderately correlated with children’s open-ended responses in past event conversations. Educators’ evaluative statements were highly correlated with children’s open-ended responses in future event conversations and were the only significant predictor for children’s talk. Given the important role of educators in scaffolding children’s thinking and communication skills, the recommended strategies for educators’ talk in decontextualised conversations include: sharing the conversational load, making frequent contextual statements and following the child’s lead/interests.

scholarly journals The Curvilinear Relationship Between Job Control and Voice: Role of Emotional Resistance to Change and Supervisor Developmental Feedback

SAGE Open ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 215824402110278
Author(s):  
Xian Tiantian ◽  
Zhang Zhenduo ◽  
Xiao Huan ◽  
Xiu Jing ◽  
Jia Wentong
Keyword(s):  
Resistance To Change ◽  
Negative Relationship ◽  
Job Control ◽  
Curvilinear Relationship ◽  
Conservation Of Resources ◽  
Mediating Role ◽  
Developmental Feedback ◽  
Emotional Resistance ◽  
Moderating Role

The purpose of this study was to delve into the underlying mechanism and contextual boundary condition of the U-shaped relationship between job control and voice at the episode level within the framework of conservation of resources theory. Adopting a two-wave experience sampling method, this study collected 265 matched cases nested in 53 Chinese employees for 5 consecutive days. By hierarchical linear regression, the U-shaped effect of job control on voice at the episode level was replicated. Furthermore, the mediating role of emotional resistance (ER) to change and to the moderating role of supervisor developmental feedback (SDF) was examined. Job control has a U-shaped effect on day-level voice and an inverted U-shaped effect on trait ER, which mediates the curvilinear relationship between job control and day-level voice. Daily SDF moderates the curvilinear relationship between job control and day-level voice such that daily SDF buffers the negative relationship between low job control and day-level voice, as well as amplifies the positive relationship between high job control and day-level voice. The current study unveils the mediating states and contextual boundary conditions of the curvilinear relationship between job control and day-level voice by testing the mediating role of ER and moderating role of SDF at the episode level, thereby further contributing to the literature on voice.

The Teacher Behavior Checklist: The Mediation Role of Teacher Behaviors in the Relationship Between the Students’ Importance of Teacher Behaviors and Students’ Effort

2020 ◽  
pp. 009862832097989
Author(s):  
Michael T. Geier
Keyword(s):  
Critical Thinking ◽  
Negative Relationship ◽  
Teacher Behavior ◽  
Teacher Behaviors ◽  
Stepwise Multiple Linear Regression ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
The Relationship ◽  
Teaching Implications

Background: Previous research suggests a relationship between teacher behaviors and students’ effort. However, it is not clear what role the students’ expectations (i.e., importance of teacher behaviors) play in this relationship. Objective: Utilizing the teacher behavior checklist, this study sought to investigate whether teacher behaviors mediate the relationship between the importance students set on teacher behaviors and students’ effort. Further, the study explored which specific behaviors influence students’ effort. Method: Cross-sectional survey data were analyzed ( N = 159) using mediation analysis and stepwise multiple linear regression. Results: There was evidence that teacher behaviors mediate the relationship between the importance students set on teacher behaviors and students’ effort. Four of the 28 teacher behaviors had a significant relationship to students’ effort: creative and interesting, enthusiastic about teaching, happy/positive/humorous, and promotes critical thinking. Conclusion: Knowing students’ expectations (i.e., the importance of teacher behaviors) is essential to increasing students’ effort. Teaching Implications: Happy/positive/humorous had a negative relationship with students’ effort, while creative and interesting, enthusiastic about teaching, and promotes critical thinking showed a positive relationship with students’ effort.

Patchwork of oil and gas facilities in Saudi waters of the Arabian Gulf has the potential to enhance local fisheries production

2015 ◽  
Vol 72 (8) ◽  
pp. 2398-2408 ◽  
Author(s):  
Lotfi Rabaoui ◽  
Yu-Jia Lin ◽  
Mohammad A. Qurban ◽  
Rommel H. Maneja ◽  
Javier Franco ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Arabian Gulf ◽  
Habitat Characteristics ◽  
Small Fish ◽  
Faunal Assemblages ◽  
Fishery Resources ◽  
Management Measures ◽  
Coastal Embayments ◽  
Oceanographic Variables

Abstract Because of the increasing oil industry development in the Arabian Gulf, hundreds of oil and gas facilities have been installed in both offshore and inshore areas during the last few decades. However, no studies have been conducted till now on the influence of these platforms on the structure and composition of marine faunal assemblages. The present work addresses this issue to propose environmental management measures connected to the utilization of fishery resources. Offshore and inshore surveys were carried out along the Saudi Gulf waters using trawl and beach-seine nets, respectively. Data relative to only fish (offshore) and fish and invertebrates (inshore) were collected concurrently with several factors: density of oil and gas facilities (offshore), distance to the nearest coastal platform (inshore), oceanographic variables, and habitat characteristics. Results of offshore surveys indicated higher fish density—both total and of fishery resources—in locations with a higher number of oil and gas facilities within a 5 km radius, whereas biomass density was not significantly different. Hence, oil and gas facilities seem to serve as nursery areas for small fish. For inshore communities, more species and diversity were found in stations closer to coastal oil and gas facilities. In addition, among the five coastal embayments sampled, those with more oil and gas facilities had more species. The findings of the present work support the hypothesis of a positive net ecological role of oil and gas platforms of the Saudi Arabian Gulf, with the implication that this effect could be extended to improve the sustainability of important fishery resources.

Sibling Relationships and Social Development in Youth and Emerging Adults: A Self-Determination Theory Approach

2021 ◽  
pp. 0192513X2110309
Author(s):  
Nadia Barberis ◽  
Valeria Verrastro ◽  
Sebastiano Costa ◽  
Maria Cristina Gugliandolo
Keyword(s):  
Social Anxiety ◽  
Emerging Adults ◽  
Negative Relationship ◽  
Need Satisfaction ◽  
Sibling Relationship ◽  
Interpersonal Competence ◽  
Theory Approach ◽  
The Family ◽  
Need Frustration

This study aimed to examine an integrated model of the mediation role of need satisfaction and frustration in the association between the sibling relationship and interpersonal competence and social anxiety in young adults and their siblings. In a sample of 1621 pairs of siblings with a range age between 16 and 30 years old, the actor-partner interdependence mediation model showed that (a) a positive sibling relationship promotes need satisfaction, while a negative relationship promotes need frustration; (b) need satisfaction to promote interpersonal competence, while need frustration promote social anxiety; and (c) a mediation role of basic need in the association between sibling relationship and social anxiety and interpersonal competence. The need satisfaction perceived by the older siblings is negatively related to social anxiety and positively related to the interpersonal competence of younger siblings. These results showed the importance of focusing on sibling dynamics in the family context using a SDT approach.

The Role of Education and Technology Adaptation in Poverty Reduction in Indonesia

2021 ◽  
Vol 1 (1) ◽  
pp. 124-127
Author(s):  
Novi Firmawati ◽  
◽  
Budi Sasongko
Keyword(s):  
Economic Growth ◽  
Poverty Alleviation ◽  
Poverty Reduction ◽  
Moving Average ◽  
Negative Relationship ◽  
Secondary Data ◽  
Technological Adaptation ◽  
Education Investment ◽  
The People

This study examines the role of education in improving technology adoption as reflected in technology inclusion, poverty alleviation and efforts to increase community income which is reflected in economic growth. This study uses secondary data from world banks and processed regression using the moving average autoregression method. We found that education investment and technology inclusion were positively related to economic growth. And,negatively related to probability. This indicates that education plays a role in encouraging technological inclusion which reflects technological adaptation and encourages economic growth which is an indicator of the prosperity of the people in Indonesia which is strengthened by a negative relationship with poverty which indicates that education plays an important role in poverty alleviation

FROM SUBCONTRACTED R&D TO JOINT COLLABORATION: THE ROLE OF TRUST IN FACILITATING THIS PROCESS

2004 ◽  
Vol 01 (02) ◽  
pp. 205-231 ◽  
Author(s):  
PAUL RYAN ◽  
MAJELLA GIBLIN ◽  
EDEL WALSHE
Keyword(s):  
Organizational Behavior ◽  
Operations Management ◽  
Management Practices ◽  
Selection Process ◽  
Negative Relationship ◽  
High Tech ◽  
Effective Selection ◽  
Unstable Environment ◽  
Consumer Tastes

High-technology companies operate in a dynamic and unstable environment due to rapidly changing technologies and consumer tastes. An increasing number of companies are engaging in joint R&D projects to subvent the constraints to competitiveness in this turbulent environment. Collaborative R&D activity has been studied from the perspectives of strategic management [Dodgson (1992)], organizational behavior [Powell et al. (1996)], operations management [Nooteboom et al. (2000)] and business-to-business marketing [Turnbull et al. (1996)]. Within the literature, trust has been identified as highly significant to alliance effectiveness, governance and the development of a long-term mutually beneficial relationship. [Perry et al. (2002); Ramaseshan and Loo (1998); Morgan and Hunt (1994); Ganesan (1994); Nooteboom et al. (2000)]. This paper describes a collaborative R&D project between two high-tech companies to trace the development of trust between the partners. It specifically considers the role of trust in facilitating the progression of their relationship from subcontracting to joint collaboration. Reaffirming existing theories, the findings of the paper identify partner compatibility and an effective selection process as well as openness and honesty as the foundations for trust. Moreover, sound management practices were found to foster high levels of co-operation and commitment to the relationship. The main contribution of the paper is the identification of opportunistic behavior as a possible positive phenomenon. This provides new insight to existing literature which traditionally assumes a negative relationship between trust and exploitative behavior.

scholarly journals Financial Markets’ Governance, Transparency and Informational Efficiency: Role of IfRS Norms, Auditors and Financial Analysts

2016 ◽  
Vol 9 (5) ◽  
pp. 100
Author(s):  
Imen Lamiri ◽  
Adel Boubaker
Keyword(s):  
Financial Markets ◽  
Stock Prices ◽  
Stock Price ◽  
Financial Analysts ◽  
Negative Relationship ◽  
Developed Countries ◽  
Coefficient Of Determination ◽  
Specific Information ◽  
Informational Efficiency

<p>This article explores the informational role of three essential modern financial markets actors such IFRS norms, the Big”4” and the financial analysts for a panel of emergent and developed countries during the period from 2001 to 2010. We hypothesis that these mechanisms help improving the quality of specific information incorporated into stock prices measured by the stock price synchronicity (SPS). The main result is that both financial analyst’s coverage and IFRS adoption's effects seem to be stronger for emerging than developed markets. The results also show a negative relationship between auditors’ opinion and coefficient of determination (R<sup>2</sup>).</p>

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