Using the relationship between taxonomic and functional diversity to assess functional redundancy in streams of an altered tropical watershed

2018 ◽  
Vol 101 (9) ◽  
pp. 1395-1405 ◽  
Author(s):  
Geysa da Silva Camilo ◽  
Bianca de Freitas Terra ◽  
Francisco Gerson Araújo
Keyword(s):  
Functional Diversity ◽  
Functional Redundancy ◽  
Tropical Watershed ◽  
The Relationship

scholarly journals Mechanisms of species coexistence and functional diversity of ant assemblages in forest and pasture habitats in southwestern Brazilian Amazon

Sociobiology ◽  
2020 ◽  
Vol 67 (1) ◽  
pp. 33
Author(s):  
Andressa Silvana Oliveira de Menezes ◽  
Fernando Augusto Schmidt
Keyword(s):  
Species Richness ◽  
Functional Diversity ◽  
Species Coexistence ◽  
Asymptotic Relation ◽  
Niche Partitioning ◽  
Brazilian Amazon ◽  
Functional Redundancy ◽  
Forest Habitat ◽  
Ant Assemblages ◽  
The Relationship

In this study, we investigated the mechanisms behind species coexistence and the relationships between functional diversity and species richness in ant assemblages in both forest and pasture habitats in the southwestern Brazilian Amazon. We addressed the specific question: What is the primary mechanism for species coexistence in forest and pasture habitats? According to the identified mechanism in each habitat, we had the following alternative expectations: (i) niche partitioning – we expected to observe a linear positive relationship between functional diversity and species richness, indicating a complementary relationship; or (ii) niche filtering – a positive constant asymptotic relation between functional diversity and species richness, indicating a functional redundancy relationship. In total, we sampled 91 ant species, 82 species in a forest habitat and 16, in a pasture habitat. In the forest habitat we identified niche filtering as the structuring mechanism of the ant assemblage, but we were unable to identify a clear mechanism in the pasture habitat. Although the relationship between functional diversity and species richness was positive in both habitats, the relationship was weaker in the forest habitat, indicating a greater functional redundancy among the ant species in this habitat. Our results reinforce the divergence of species coexistence mechanisms and ant assemblage structures in both natural and human-modified habitats in the Southwestern Brazilian Amazon.

scholarly journals Relationship between Diversity and Stability of a Karst Plant Community

2022 ◽  
Author(s):  
Yang Wang ◽  
Jin Chen ◽  
Limin Zhang ◽  
Ling Feng ◽  
Lingbin Yan ◽  
...  
Keyword(s):  
Species Diversity ◽  
Plant Community ◽  
Functional Diversity ◽  
Plant Communities ◽  
Functional Redundancy ◽  
Community Diversity ◽  
Ecosystem Ecology ◽  
Community Recovery ◽  
The Relationship ◽  
Late Stages

The relationships among species diversity, functional diversity, functional redundancy, and community stability are central to community and ecosystem ecology. This paper examines plant communities at different stages of vegetation restoration in the Guizhou karst plateau to study the relationship among functional diversity, functional redundancy, and stability of plant communities. The most important results include the following. (1) Species diversity (SD), functional redundancy (FR), and stability (STB) gradually increased with restoration, and there were significant differences among the different stages; functional diversity (FD) increased at first and then decreased, and reached the highest level at the tree irrigation stage. (2) Plant height (PLH) and specific leaf area (SLA) were functional traits that affected the diversity and stability of the plant community, and PLH was positively correlated with plant community diversity and stability, while SLA was negatively correlated with plant community diversity and stability. (3) During the community recovery, FD and FR interacted to maintain stability. In the early and late stages of recovery, the effect of functional redundancy on stability was greater than that of functional diversity, but it was the opposite in the middle stages. (4) The tree irrigation stage is the likely point at which the species diversity of plant communities in karst areas reached saturation, and the growth rate of functional redundancy after species diversity saturation was greater than that before saturation.

scholarly journals Lower functional redundancy in “narrow” than “broad” functions in global soil metagenomics

2022 ◽  
Author(s):  
Huaihai Chen ◽  
Kayan Ma ◽  
Yu Huang ◽  
Jiajiang Lin ◽  
Christopher Schadt ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Soil Microbes ◽  
Taxonomic Diversity ◽  
Functional Redundancy ◽  
Ecosystem Functions ◽  
Soil Microbial ◽  
Wide Range ◽  
Global Soil ◽  
Functional Profiles ◽  
The Relationship

Abstract. Understanding the relationship between soil microbial taxonomic compositions and functional profiles is essential for predicting ecosystem functions under various environmental disturbances. However, even though microbial communities are sensitive to disturbance, ecosystem functions remain relatively stable, as soil microbes are likely to be functionally redundant. Microbial functional redundancy may be more associated with “broad” functions carried out by a wide range of microbes, than with “narrow” functions specialized by specific microorganisms. Thus, a comprehensive study to evaluate how microbial taxonomic compositions correlate with “broad” and “narrow” functional profiles is necessary. Here, we evaluated soil metagenomes worldwide to assess whether functional and taxonomic diversities differ significantly between the five “broad” and the five “narrow” functions that we chose. Our results revealed that compared with the five “broad” functions, soil microbes capable of performing the five “narrow” functions were more taxonomically diverse, and thus their functional diversity was more dependent on taxonomic diversity, implying lower levels of functional redundancy in “narrow” functions. Co-occurrence networks indicated that microorganisms conducting “broad” functions were positively related, but microbes specializing “narrow” functions were interacting mostly negatively. Our study provides strong evidence to support our hypothesis that functional redundancy is significantly different between “broad” and “narrow” functions in soil microbes, as the association of functional diversity with taxonomy were greater in the five “narrow” rather than the five “broad” functions.

The relationship between species diversity and functional diversity along aridity gradients in semi-arid rangeland

2021 ◽  
Vol 195 ◽  
pp. 104632
Author(s):  
Guy Dovrat ◽  
Ehud Meron ◽  
Moshe Shachak ◽  
Yosef Moshe ◽  
Yagil Osem
Keyword(s):  
Species Diversity ◽  
Functional Diversity ◽  
The Relationship ◽  
Semi Arid ◽  
Arid Rangeland

scholarly journals Assessing Natural Resource Use by Forest-Reliant Communities in Madagascar Using Functional Diversity and Functional Redundancy Metrics

PLoS ONE ◽  
2011 ◽  
Vol 6 (9) ◽  
pp. e24107 ◽  
Author(s):  
Kerry A. Brown ◽  
Dan F. B. Flynn ◽  
Nicola K. Abram ◽  
J. Carter Ingram ◽  
Steig E. Johnson ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Natural Resource ◽  
Resource Use ◽  
Functional Redundancy ◽  
Natural Resource Use

Examining the effect of functional diversity on organizational team innovation

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Gladys Esinu Abiew ◽  
Eugene Okyere-Kwakye ◽  
Florence Yaa Akyia Ellis
Keyword(s):  
Functional Diversity ◽  
Structural Equation ◽  
Power Distance ◽  
Uncertainty Avoidance ◽  
Cultural Dimensions ◽  
Content Type ◽  
Team Innovation ◽  
The Relationship ◽  
Moderating Role

Purpose Underpinned by the information processing theory, this study aims to investigate the relationship between functional diversity and team innovation by examining the moderating role of some selected cultural dimensions (power distance, uncertainty avoidance and masculinity-femininity) in the relationship between functional diversity and innovation. Design/methodology/approach A quantitative research method was used using a structured questionnaire as a tool to collect data from 251 respondents drawn from research institutions in Ghana. Data was analysed using simple regression and hierarchical multiple regression. In addition, a structural equation model was used to conduct confirmatory factor analyses to examine whether the variables in the hypothesized model for the study captured distinct constructs that the variables were designed to measure. Findings The study revealed that functional diversity was positively related to team innovation. The study also found that functionally diverse groups are more innovative when they exhibit low uncertainty avoidance, femininity and low power distance. Practical implications These findings suggest that practices such as team communication, honesty, respect and trust would foster team unity and commitment, which would enable members to share diverse expertise towards the creation and execution of new ideas and improvement of productivity in the country. Originality/value The study examined the relationship between functional diversity and team innovation by examining the moderating role of some selected cultural dimensions (power distance, uncertainty avoidance and masculinity-femininity) in the relationship between functional diversity and innovation.

The Role of Functional Diversity, Collective Team Identification, and Task Cohesion in Influencing Innovation Speed

2022 ◽  
pp. 1535-1566
Author(s):  
Jin Chen ◽  
Wei Yang Lim ◽  
Bernard C.Y. Tan ◽  
Hong Ling
Keyword(s):  
Functional Diversity ◽  
Social Identity Theory ◽  
Team Identification ◽  
Implementation Phase ◽  
Software Teams ◽  
Task Cohesion ◽  
Managerial Implications ◽  
Two Phases ◽  
The Relationship

This article opens up the black box of innovation and examines the relationship between functional diversity in software teams and the often neglected dimension of innovation – speed, over the two phases of innovation: creativity and idea implementation. By combining information processing view and social identity theory, the authors hypothesize that when collective team identification is low, functional diversity positively affects the time spent in the creativity phase; however, when collective team identification is high, this relationship is inverted U-shaped. When task cohesion is high, functional diversity negatively affects the time spent in the idea implementation phase; however, when task cohesion is low, this relationship is U-shaped. Results from 96 IT software-teams confirmed the authors' hypotheses. Theoretical and managerial implications are discussed.

The Role of Functional Diversity, Collective Team Identification, and Task Cohesion in Influencing Innovation Speed

2018 ◽  
Vol 26 (2) ◽  
pp. 163-192 ◽  
Author(s):  
Jin Chen ◽  
Wei Yang Lim ◽  
Bernard C.Y. Tan ◽  
Hong Ling
Keyword(s):  
Functional Diversity ◽  
Social Identity Theory ◽  
Team Identification ◽  
Implementation Phase ◽  
Software Teams ◽  
Task Cohesion ◽  
Managerial Implications ◽  
Two Phases ◽  
The Relationship

This article opens up the black box of innovation and examines the relationship between functional diversity in software teams and the often neglected dimension of innovation – speed, over the two phases of innovation: creativity and idea implementation. By combining information processing view and social identity theory, the authors hypothesize that when collective team identification is low, functional diversity positively affects the time spent in the creativity phase; however, when collective team identification is high, this relationship is inverted U-shaped. When task cohesion is high, functional diversity negatively affects the time spent in the idea implementation phase; however, when task cohesion is low, this relationship is U-shaped. Results from 96 IT software-teams confirmed the authors' hypotheses. Theoretical and managerial implications are discussed.

scholarly journals Urbanism and the division of labour in the Roman Empire

2017 ◽  
Vol 14 (136) ◽  
pp. 20170367 ◽  
Author(s):  
J. W. Hanson ◽  
S. G. Ortman ◽  
J. Lobo
Keyword(s):  
Roman Empire ◽  
Functional Diversity ◽  
Professional Associations ◽  
Division Of Labour ◽  
Urban Systems ◽  
Modern World ◽  
Built Environments ◽  
Exact Nature ◽  
Generative Processes ◽  
The Relationship

One of the hallmarks of human agglomeration is an increase in the division of labour, but the exact nature of this relationship has been debated among anthropologists, sociologists, economists, and historians and archaeologists. Over the last decade, researchers investigating contemporary urban systems have suggested a novel explanation for the links between the numbers of inhabitants in settlements and many of their most important characteristics, which is grounded in a view of settlements as social networks embedded in built environments. One of the remarkable aspects of this approach is that it is not based on the specific conditions of the modern world (such as capitalism or industrialization), which raises the issue of whether the relationships observed in contemporary urban systems can also be detected in pre-modern urban or even non-urban systems. Here, we present a general model for the relationship between the population and functional diversity of settlements, where the latter is viewed as an indicator of the division of labour. We then explore the applicability of this model to pre-modern contexts, focusing on cities in the Roman Empire, using estimates of their numbers of inhabitants, numbers of documented professional associations, and numbers of recorded inscriptions to develop an index of functional diversity. Our results are consistent with theoretical expectations, adding further support to the view that urban systems in both contemporary and pre-modern contexts reflect a common set of generative processes.

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