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This study seeks to investigate the influence of human activities on the patterns of species diversities along the forest‐savanna boundary in Oyo state of Nigeria.

A transect was placed along the study area from the rainforest belt, through the forest savanna ecotone to the southern fringe of the Guinea savanna vegetation belt. Each study site was identified as forest or savanna or ecotone using the species found within them. Samples from trees with diameter at breast height ≥ 6 cm were collected and the numbers from the different species counted. Species diversity patterns were analysed using the Shannon and Simpson's Index.

Analysis of patterns of species diversity with the Shannon and Simpson's Index showed a decrease in the species diversity from sites with mature vegetation to the areas of vegetation succession irrespective of whether they contained forest or savanna vegetation. Also, species diversities was greater in the forest vegetation than in the savanna vegetation. The decrease in species diversity and loss in some species is attributable to the effect of landuse and other human interference along the forest savanna ecotone.

The study suggested measures to reduce biodiversity loss in the forest savanna zones of Nigeria.

This paper explores the reporting of the Russian American Company (RAC), from 1840 to 1863. Trading in fur, company fears of animal extinctions viewed from a monetary perspective led to early extinction reporting practice. These were not altruistic reports; they were generated by a wish to use natural resources. Despite the motivations, these reports present an example of successful extinction management by a for-profit company and a workable example of emancipatory extinction accounting.

Using thematic analysis, this study demonstrates how moving from transparency to accountability driven accounting can assist in biodiversity reporting, by exploring this historical business case of extinction management through the lens of Atkins and Maroun's (2018) extinction framework.

The application of the framework to the RAC's set of reports indicates that this offers a viable proposal for development of extinction management, providing a reporting tool for a for-profit company.

Exploring RAC's reports focusing on their extinction management processes and reporting, the paper contributes to the contemporary debate on the development of extinction reporting frameworks. These historical examples of extinction accounting, show extinction management and reporting is not a unique contemporary development in accounting. The research uses historical data as the empirical foundation for exploring applicability and further development of this extinction framework.

This study aims to explore the risk level of pufferfish and lionfish by comparing them among Turkish marines. In addition, this study focuses on comparing pufferfish with lionfish to determine which one is more dangerous for marine economics in Türkiye.

This study employs descriptive content analysis to give some qualitative evidence for the related literature. As a sample case, Türkiye was selected in the context of being a country in the Mediterranean Basin. By reviewing recent news, reports and publications, this study firstly will conclude how invasive alien marine species affect Turkish marines. Then, pufferfish and lionfish will be compared together to determine the risk level of these species for Turkish marine economics.

As a result of descriptive findings, it is seen that captured fishery has been declined in Turkey recently due to many factors including climate change, global warming, overfishing, environmental pollution and attack of invasive alien species. Pufferfish and lionfish are seen as the most spread marine species in Turkish marines. When comparing pufferfish with lionfish, it is seen that pufferfish is more dangerous than lionfish for Turkish marine economics.

This study provides descriptive and original findings as a result of comparison of pufferfish and lionfish due to their impact on Turkish marine economy. It is thought to give useful importation for the fight against invasive alien marine species in the Mediterranean Basin. Future studies can investigate different invasive alien marine species and their impacts on marine economics in the Mediterranean Basin.

Based on the Turkish cases, it is determined that there should be different policies for fight against invasive alien marine species in the Mediterranean Sea. Each marine species has different impacts on seafood market. Some of marine species can be consumed as a seafood product but some of them can't be consumed that policy makers should develop other strategies such as catching them to reduce their population in the local marines.

The spread of invasive alien marine species is still continuing in the Mediterranean Basin. Each country has been affected by the attack of invasive alien marine species. To keep sustainable seafood market and marine economics, countries should both implement common policies and develop policies specific to threats in their own countries.

This study reveals key points in the rise of invasive alien marine species in Turkish marines at first. The main contribution of this study is to be a recent sample for a country which is under attack by invasive alien marine species by giving a comparison of pufferfish and lionfish.

The purpose of this paper is to explore the biodiversity and threatened species reporting of the top 150 Fortune Global companies. The paper has two main objectives: to explore the extent to which the top 150 Fortune Global companies disclose information about their biodiversity and species conservation practices, and to explore the effects of biodiversity partners and industry on companies’ biodiversity and threatened species reporting.

The study’s sample is the top 150 Fortune Global companies. Each company’s fiscal year ending 2014 annual report, its 2014 sustainability report, and its company website were content analyzed for evidence of biodiversity and threatened species reporting. This content analysis is supplemented by a detailed analysis that focusses on the sample’s top five reporters, including a phone interview with a senior sustainability manager working at one of these companies. Finally, a regression analysis was conducted to examine the associations between companies’ biodiversity and threatened species reporting and the presence/absence of biodiversity partners and a company’s industry F&C Asset Management industry category.

The reporting on biodiversity and threatened species by the top 150 Fortune Global companies is quite limited. Few companies (less than 15) are providing any substantial reporting. It was further observed that even among the high scoring companies there is a lack of consistent reporting across all index items. A subsequent empirical examination of these companies’ disclosures on biodiversity and threatened species showed a statistically positive association between the amount of reporting and companies’ holding of biodiversity partnerships. It was also observed that firms categorized as red- and green-zone companies made more disclosures on biodiversity and threatened species than amber-zone companies.

This is the first study to systematically analyze corporate disclosures related to threatened species and habitats. While some prior studies have included the concept of biodiversity when analyzing organizations’ environmental disclosures, they have done so by examining it as one general category out of many further categories for investigating organizations’ environmental reporting. In the present study, the focus is on the specific contents of biodiversity disclosures. As such, this study has the twin research objectives of seeking to illuminate the current state of biodiversity and threatened species reporting by the world’s largest multinationals and provide an appreciation for how certain organizational and industry variables serve to influence these reporting practices. These multiple insights offer companies, and potentially regulators, understanding about how to include (or extend) disclosures on biodiversity loss and species under threat of extinction.

The purpose of this paper is to explore the state of extinction accounting, and the motivations for its use in the UK public sector. Prior studies are mostly concerned with corporate attempts to account for species, despite studies in related areas calling for examinations of the public sector context.

The paper analyses the use of extinction accounting in three separate case organisations, conducting a total of 21 interviews across the three cases. Interviews were conducted with a range of organisational participants each having experience with extinction accounting.

Interviews reveal a number of common uses and applications of extinction accounting across the three councils. Practices are used to generate reports on species loss and recovery within each region, and to facilitate planning for species protection and recovery. However, in attempting to use this information, key trade-offs emerge between satisfying economic and ecological criteria, and even trade-offs are created regarding development of protection schemes. This leads to a subversion of extinction accounting.

Commensurate with prior studies in the corporate context, the study finds the presence of an economic logic impinging upon ecological decision making, suggesting that practices of extinction accounting may be affected by the same acknowledged economic motivations that reside in corporate attempts to account for nature.

The paper makes an important contribution by evaluating the public sector context of extinction accounting, which is lacking in existing research. The findings relating to the public sector use of species and extinction information also provide a useful context to understand how relatively new social and environmental accounting practices are deployed in organisations, as well as some indication of their effectiveness and limitations.

This paper aims to explore similarities and differences between robots, invasive biological species, and genetically modified organisms. These comparisons are designed to better understand the potential effects of robots on human society.

This paper applies established ideas in one discipline – biology – to issues that are less well understood, but actively being studied in another discipline – science and technology studies.

Robots entering human society in large numbers share many of the characteristics of an invasive species entering a new ecosystem. The authors also find that robots have several characteristics that are similar to a genetically modified organism. Taken together, these similarities suggest that society should be cautious about the introduction of large numbers of robots in a short period of time.

The approach taken here to assess robots in society by these analogies to ecological processes is, to the authors' knowledge, novel. Applying ideas from a better-known area to a less well-known area is routine in philosophy, but these particular analogies have not yet been carefully articulated in the literature.

Information practices become highly complex in biodiversity citizen science projects due to the projects’ large scale, distributed setting and vast inclusion of participants. This study aims to contribute to knowledge concerning what variations of information practices can be found in biodiversity citizen science and what these practices may mean for the overall collaborative biodiversity data production in such projects.

Fifteen semi-structured interviews were carried out with participants engaged with the Swedish biodiversity citizen science information system Artportalen. The empirical data were analysed through a practice-theoretical lens investigating information practices in general and variations of practices in particular.

The analysis shows that the nexus of biodiversity citizen science information practices consists of observing, identifying, reporting, collecting, curating and validating species as well as decision-making. Information practices vary depending on participants’ technical know-how; knowledge production and learning; and preservation motivations. The study also found that reporting tools and field guides are significant for the formation of information practices. Competition was found to provide data quantity and knowledge growth but may inflict data bias. Finally, a discrepancy between practices of validating and decision-making have been noted, which could be mitigated by involving intermediary participants for mutual understandings of data.

The study places an empirically grounded information practice-theoretical perspective on citizen science participation, extending previous research seeking to model participant activities. Furthermore, the study nuances previous practice-oriented perspectives on citizen science by emphasising variations of practices.

The purpose of this paper is to develop a novel tenant mix model for shopping malls based on an analogy from ecological theories.

This study empirically investigates the tenant species‐area relationship and tenant species‐abundance distribution in shopping malls. In this study, the tests on species‐area relationship and species‐abundance distribution in shopping malls are derived from ecological theories. Empirical tests by a sample of 18 shopping malls for the species‐area relationship and of five malls for the species‐abundance distribution are carried out in Hong Kong

It shows that, in line with the findings of biogeography, the tenant species‐area relationship follows a power law of exponent of about 0.20. Furthermore, the species‐abundance distributions of the five large‐scale malls are found to be closely in track with a geometric distribution as commonly found in ecology. These results imply that tenant mix strategies are governed by two principles: the number of tenant species is related to the mall size; and the shop area allocation follows a geometric distribution.

The study provides the first quantitative tenant mix model on the number of tenant species in a particular mall size, and on the tenant species abundance distribution pattern. These results provide far‐reaching implications for research and practice, including a quantitative benchmarking of tenant mix strategy and an optimal design of shopping malls.

The model is the first tenant mix model for practitioners to formulate quantitative tenant mix strategy, and evaluate the effects of tenant mix on the performance of a shopping mall.

It is the first quantitative model for tenant mix, and would open up a novel agenda for research on tenant mix strategies.

To evaluate the oxide formation characteristics of tin (Sn) as a function of conditioning treatment and define a conditioning methodology that rapidly produces a tin oxide thickness and oxide species morphology similar to those formed in ambient oxidation.

Electrochemical reduction analysis and scanning electron microscopy techniques were utilized to identify tin oxide species and oxide quantities on tin samples which were subjected to a variety of conditioning methodologies.

Tin oxide species were identified and oxide quantities measured. Comparisons of tin oxide species/quantities were completed for the different conditioning methodologies used and for other industry oxide investigations. The following conclusions were reached: all conditioning methodologies produced both SnO and SnO₂ tin oxide species; steam conditioning produced the thickest oxides; the conditioning methodologies investigated were found to produce oxide thicknesses similar to those formed under ambient conditions.

Further investigation would be beneficial using this study as a foundation. Additional conditioning methodologies and a larger selection of various tin surfaces would provide a future understanding of the impact of oxide species and thickness on solderability.

The electronics industry has attempted to “predict” a surface's susceptibility to oxidation by using accelerated conditioning techniques. An understanding of the formation of tin oxidation products created by accelerated conditioning techniques could be highly beneficial to the electronics industry. The standardization and use of a realistic accelerated conditioning technique would reduce testing cycle time, increase the predictability and consistency of test results, and lower testing costs.

This paper was incorporated into an original electronics manufacturer's solderability testing/analysis procedures, and the results are being utilized by the electronics industry solderability specification task groups/committees.

The purpose of this study is to model and predict mammalian herbivore species abundance in Gonarezhou National Park (GNP), south eastern Zimbabwe. The study also aims to determine and evaluate the distribution-abundance patterns in GNP.

Using aerial survey data from 1980 to 2016, the authors use the rank-abundance model to determine the abundance of mammalian herbivores in GNP. Regression analysis is used to show the mammalian herbivore species distribution-abundance relationship.

The findings point to a high species richness and evenness in the study area with common species (15%), intermediate (30%) and rare (60%). There is a positive significant relationship (p = 0.00, R² = 0.9642) between abundance and distribution with common species occupying wider spaces and rare species occupying narrow spaces.

Aerial surveys in GNP are not continuous and are biased towards elephants. The inclusion of other mammalian herbivore species including domestic animals in subsequent surveys made the aerial reports useful.

Studies in GNP have tended to concentrate on the population of mammalian herbivores and this marks a shift in emphasis in such studies. The monitoring of mammalian species improves the conservation and management of GNP. Apart from making planning and policy decisions from an informed point of view small animals also need attention as they are numerically few than the large threatened mammals.