Average functional distinctness as a measure of the composition of assemblages

Abstract Somerfield, P. J., Clarke, K. R., Warwick, R. M., and Dulvy, N. K. 2008. Average functional distinctness as a measure of the composition of assemblages. – ICES Journal of Marine Science, 65: 1462–1468. Indices are used to quantify change in the environment by reducing aspects of environmental complexity to numbers. Biodiversity indices are typically calculated using the numbers of species and their relative abundances. A recent advance has been the development of additional measures of diversity, such as phylogenetic diversity, based on relationships between organisms. The emerging paradigms of the importance of biodiversity to ecosystem services and the ecosystem approach to fishery management could be well served by the development of indicators of ecosystem functioning. We discuss how relatedness measures may be adapted to quantify aspects of community structure of relevance to ecosystem functioning, by combining information on species’ occurrence, life history, and ecological traits. We present an index that reflects average functional distinctness within assemblages. We illustrate the approach using North Sea fish. Results reveal that average functional distinctness is not independent of taxonomic distinctness. This is expected, but the weakness of the relationship suggests that both indices may prove useful, because they are not constrained to convey the same information about samples. Both indices are shown to be weakly related to species richness, which was not expected. This is a consequence of differences in the frequencies of occurrence among species.

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A conceptual framework and experimental design for analysing the relationship between biodiversity and ecosystem functioning (BEF) in agroforestry systems

Basic and Applied Ecology ◽

10.1016/j.baae.2021.05.002 ◽

2021 ◽

Author(s):

Julia Schwarz ◽

Florian Schnabel ◽

Jürgen Bauhus

Keyword(s):

Experimental Design ◽

Conceptual Framework ◽

Ecosystem Functioning ◽

Agroforestry Systems ◽

Biodiversity And Ecosystem Functioning ◽

The Relationship

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Phylogenetic diversity and dominant ecological traits of freshwater Antarctic Chrysophyceae

Polar Biology ◽

10.1007/s00300-021-02850-3 ◽

2021 ◽

Author(s):

Irina Izaguirre ◽

Fernando Unrein ◽

M. Romina Schiaffino ◽

Enrique Lara ◽

David Singer ◽

...

Keyword(s):

Phylogenetic Diversity ◽

Ecological Traits

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How complementarity and selection affect the relationship between ecosystem functioning and stability

Ecology ◽

10.1002/ecy.3347 ◽

2021 ◽

Author(s):

Shaopeng Wang ◽

Forest Isbell ◽

Wanlu Deng ◽

Pubin Hong ◽

Laura E. Dee ◽

...

Keyword(s):

Ecosystem Functioning ◽

The Relationship

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Ecological traits and environmental affinity explain Red Sea fish introduction into the Mediterranean

Global Change Biology ◽

10.1111/gcb.12376 ◽

2014 ◽

Vol 20 (2) ◽

pp. 680-680 ◽

Cited By ~ 2

Author(s):

J. Belmaker ◽

V. Parravicini ◽

M. Kulbicki

Keyword(s):

Red Sea ◽

Ecological Traits ◽

Fish Introduction ◽

The Mediterranean ◽

Sea Fish

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Population responses of bird populations to climate change on two continents vary with species’ ecological traits but not with direction of change in climate suitability

Climatic Change ◽

10.1007/s10584-019-02549-9 ◽

2019 ◽

Vol 157 (3-4) ◽

pp. 337-354 ◽

Cited By ~ 2

Author(s):

Lucy R. Mason ◽

Rhys E. Green ◽

Christine Howard ◽

Philip A. Stephens ◽

Stephen G. Willis ◽

...

Keyword(s):

Climate Change ◽

Climatic Change ◽

Body Mass ◽

Positive Relationship ◽

Breeding Habitat ◽

Ecological Traits ◽

Population Responses ◽

Climate Suitability ◽

Species Responses ◽

The Relationship

Abstract Climate change is a major global threat to biodiversity with widespread impacts on ecological communities. Evidence for beneficial impacts on populations is perceived to be stronger and more plentiful than that for negative impacts, but few studies have investigated this apparent disparity, or how ecological factors affect population responses to climatic change. We examined the strength of the relationship between species-specific regional population changes and climate suitability trends (CST), using 30-year datasets of population change for 525 breeding bird species in Europe and the USA. These data indicate a consistent positive relationship between population trend and CST across the two continents. Importantly, we found no evidence that this positive relationship differs between species expected to be negatively and positively impacted across the entire taxonomic group, suggesting that climate change is causing equally strong, quantifiable population increases and declines. Species’ responses to changing climatic suitability varied with ecological traits, however, particularly breeding habitat preference and body mass. Species associated with inland wetlands responded most strongly and consistently to recent climatic change. In Europe, smaller species also appeared to respond more strongly, whilst the relationship with body mass was less clear-cut for North American birds. Overall, our results identify the role of certain traits in modulating responses to climate change and emphasise the importance of long-term data on abundance for detecting large-scale species’ responses to environmental changes.

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The moderating role of organizational environments on the relationship between inventory leanness and venture survival in Chinese manufacturing

Journal of Manufacturing Technology Management ◽

10.1108/jmtm-04-2019-0129 ◽

2019 ◽

Vol 31 (2) ◽

pp. 413-440 ◽

Cited By ~ 3

Author(s):

Xinyu Wang ◽

Yu Lin ◽

Yingjie Shi

Keyword(s):

Failure Time ◽

Three Dimensions ◽

Accelerated Failure Time Model ◽

Environmental Complexity ◽

Time Model ◽

Content Type ◽

Organizational Environments ◽

The Relationship ◽

Moderating Role

Purpose The purpose of this paper is to investigate the relationship between inventory leanness and venture survival, and demonstrate the role of organizational environments in moderating this relationship from three dimensions: environmental complexity, dynamism and munificence. Design/methodology/approach Using a large panel data of more than 150,000 new Chinese small- and medium-sized enterprises between 2000 and 2007 in the manufacturing sector, the authors employ the method of survival analysis via an accelerated failure time model to explore the non-linear relationship between inventory leanness and the likelihood of survival. Moreover, the moderation model is applied to examine the moderating role of organizational environments. Findings At its core, this paper demonstrates the inverted U-shaped relationship between inventory leanness and the likelihood of survival. Furthermore, the authors find that environmental complexity and dynamism can negatively moderate this relationship, whereas environmental munificence acts the exact opposite. Practical implications Managers need to realize the trade-off between inventory leanness and venture survival. Collectively, more than 90 percent of new Chinese ventures have great potential to improve the likelihood of survival by implementing inventory leanness management. In addition, firms ought to be fully aware of the internal management and the external environments. Originality/value This is the first study to confirm the inverted U-shaped relationship between inventory leanness and the likelihood of survival, and empirically verify the moderating role of environmental complexity, dynamism and munificence on this relationship.

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An introduction to the proceedings and a synthesis of the 2010 ICES Symposium on Fishery-Dependent Information

ICES Journal of Marine Science ◽

10.1093/icesjms/fsr136 ◽

2011 ◽

Vol 68 (8) ◽

pp. 1593-1597 ◽

Cited By ~ 11

Author(s):

Norman Graham ◽

Richard Grainger ◽

William A. Karp ◽

David N. MacLennan ◽

Philip MacMullen ◽

...

Keyword(s):

Fishery Management ◽

Ecosystem Approach ◽

Marine Science ◽

New Approaches ◽

Technological Advances ◽

Key Issues

Abstract Graham, N., Grainger, R., Karp, W. A., MacLennan, D. N., MacMullen, P., and Nedreaas, K. 2011. An introduction to the proceedings and a synthesis of the 2010 ICES Symposium on Fishery-Dependent Information. – ICES Journal of Marine Science, 68: 1593–1597. Current problems and issues concerning the collection and use of fishery-dependent information are reviewed and selected papers in the pages following highlight emergent findings in the field. Key issues include relationships between stakeholders, especially fishers and scientists, and how to develop these constructively, the increasing demands on the quality and range of data on fishing activities and exploitation rates needed to promote the ecosystem approach to fishery management, and technological advances that have allowed new approaches and insights.

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Exploring the Relationship between Macrofaunal Biodiversity and Ecosystem Functioning in the Deep Sea

Frontiers in Marine Science ◽

10.3389/fmars.2017.00198 ◽

2017 ◽

Vol 4 ◽

Cited By ~ 8

Author(s):

Elisa Baldrighi ◽

Donato Giovannelli ◽

Giuseppe D'Errico ◽

Marc Lavaleye ◽

Elena Manini

Keyword(s):

Deep Sea ◽

Ecosystem Functioning ◽

Biodiversity And Ecosystem Functioning ◽

The Relationship

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When organizational complexity helps corporation improve its performance

Journal of Management Development ◽

10.1108/jmd-05-2013-0071 ◽

2015 ◽

Vol 34 (3) ◽

pp. 340-351 ◽

Cited By ~ 4

Author(s):

Hong Liu ◽

Lu Ma ◽

Panpan Huang

Keyword(s):

Future Research ◽

Environmental Complexity ◽

Organizational Complexity ◽

Content Type ◽

Corporation Performance ◽

Complex Adaptive ◽

Shape Curve ◽

Theory Research ◽

The Relationship

Purpose – The purpose of this paper is to test the assertion that the relationship between corporation performance and organizational complexity follows an inverted U-shape curve, and a corporation gains the best performance when its organizational complexity fits its environmental complexity. Design/methodology/approach – This research did not directly measure environmental complexity to verify the relationship between corporation performance and complex environment, but measured organizational complexity to subtly display the effect of the organizational complexity on the corporation performance while controlled the environmental complexity. To do so, a set of corporations that shared the similar environment was selected, and then these corporations’ performance and organizational complexity were calculated, the related hypotheses were tested empirically. Findings – The paper proved the inverted U-shape relationship between organizational complexity and corporation performance, and also found that different corporation chooses different complex adaptive way, so the inverted U-shape relationship displays hierarchy. Research limitations/implications – Future research should search out to calculate corporation’s environment complexity the fitness of organizational complexity for testing hypotheses. Practical implications – The regularity of relationship between organizational complexity and corporation performance is helpful for managers to understand that a way to improve a corporation’s performance is to enhance the fitness of organizational complexity and environmental complexity. Social implications – Organizational complexity may be competitive advantage, but excessive growth of it will be harmful. Originality/value – Usually organizational complexity is thought of as a negative factor to corporation performance and tends to be constrained, but this research explored the role of organizational complexity to corporation performance and the findings helps managers to understand when to enhance organizational complexity and when to weaken it. The methodology of calculating the fitness of organizational complexity and environmental complexity by fixing environment is a contribution to complexity theory research.

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