Conservation Science Research Articles

Reducing demand for overexploited wildlife products: Lessons from systematic reviews from outside conservation science

AbstractConservationists have long sought to reduce consumer demand for products from overexploited wildlife species. Health practitioners have also begun calling for reductions in the wildlife trade to reduce pandemic risk. Most wildlife‐focused demand reduction campaigns have lacked rigorous evaluations and thus their impacts remain unknown. There is thus an urgent need to review the evidence from beyond conservation science to inform future demand‐reduction efforts. We searched for systematic reviews of interventions that aimed to reduce consumer demand for products that are harmful (e.g., cigarettes and illicit drugs). In total, 41 systematic reviews were assessed, and their data extracted. Mass‐media campaigns and incentive programs were, on average, ineffective. While advertising bans, social marketing, and location bans were promising, there was insufficient robust evidence to draw firm conclusions. In contrast, the evidence for the effectiveness of norm appeals and risk warnings was stronger, with some caveats.

An introduction to decision science for conservation.

Biodiversity conservation decisions are difficult, especially when they involve differing values, complex multidimensional objectives, scarce resources, urgency, and considerable uncertainty. Decision science embodies a theory about how to make difficult decisions and an extensive array of frameworks and tools that make that theory practical. We sought to improve conceptual clarity and practical application of decision science to help decision makers apply decision science to conservation problems. We addressed barriers to the uptake of decision science, including a lack of training and awareness of decision science; confusion over common terminology and which tools and frameworks to apply; and the mistaken impression that applying decision science must be time consuming, expensive, and complex. To aid in navigating the extensive and disparate decision science literature, we clarify meaning of common terms: decision science, decision theory, decision analysis, structured decision‐making, and decision‐support tools. Applying decision science does not have to be complex or time consuming; rather, it begins with knowing how to think through the components of a decision utilizing decision analysis (i.e., define the problem, elicit objectives, develop alternatives, estimate consequences, and perform trade‐offs). This is best achieved by applying a rapid‐prototyping approach. At each step, decision‐support tools can provide additional insight and clarity, whereas decision‐support frameworks (e.g., priority threat management and systematic conservation planning) can aid navigation of multiple steps of a decision analysis for particular contexts. We summarize key decision‐support frameworks and tools and describe to which step of a decision analysis, and to which contexts, each is most useful to apply. Our introduction to decision science will aid in contextualizing current approaches and new developments, and help decision makers begin to apply decision science to conservation problems.

Spatio-temporal monitoring of humidity induced 3D displacements and strains in mounted and unmounted parchments

The high hygroscopicity and heterogeneity of parchment make it particularly sensitive to changes in environmental conditions. The proper housing of a historical parchment, including mounting should mitigate the impact of the changes on the object. However, finding an appropriate mounting method requires detailed knowledge of the mechanical response of a parchment on the combined influence from environmental changes and forces introduced by the mounting. In this paper we present the capabilities of 3D digital image correlation (3D DIC) method implemented for full-field, spatio-temporal monitoring of displacements and strains in parchment exposed to environmental changes. We combine the measurement concept with the particular, critical task of evaluating the effectiveness of stabilising a single sheet of parchment mounted using elastic polyester strips. 3D DIC is implemented to record in non-invasive and non-contact way the full-field response of parchment mock-ups to fluctuations of the relative humidity (RH) without interfering with the climatic chamber processes. We measure and compare the impact of fluctuating RH on unmounted and mounted parchment samples, through the full-field 3D measurements of dimensional changes at selected humidity levels, and through the local and global analysis of the samples’ response (displacement/strains) in time. We had proven in quantitative and detailed way that the applied mount fully fulfils its task, namely reduce significantly the out-of-plane displacements and strains occurring in the parchment during RH changes in the range from 39 to 80%. Our study also demonstrates the possibilities of using 3D DIC for the efficient support of conservation scientists in the development of storage, mounting, and treatment protocols for historical parchment.

First pages - Presentation - Dedication

Our journal publishes scientific articles that increase our understanding of biology, conservation, and biomedical life sciences in the tropics. Selection criteria are the quantity and quality of new information and its potential interest to the general audience as well as to specialists. The studied ecosystems, or at least the organisms, must be tropical.

EchidnaCSI: Engaging the public in research and conservation of the short-beaked echidna

The short-beaked echidna is an iconic Australian animal and the most-widespread native mammal, inhabiting diverse environments. The cryptic nature of echidnas has limited research into their ecology in most areas; however, from the well-researched and endangered Kangaroo Island echidna population, we understand that the threats include habitat loss, roads, and invasive species. To obtain more information about echidnas Australia-wide, we established the Echidna Conservation Science Initiative (EchidnaCSI) citizen science project. EchidnaCSI calls on members of the public to submit photographs of wild echidnas and learn to identify and collect echidna scats for molecular analysis. To facilitate participation, we developed a smartphone application as well as ongoing social and traditional media activities and community events. In 3 y, more than 9,000 members of the public have downloaded the EchidnaCSI app, collecting 400 scats and submitting over 8,000 sightings of echidnas from across Australia. A subset of submitted scat samples were subjected to DNA extraction and PCR, which validated the approach of using citizen science for scat collection and viability for molecular analysis. To assess the impact of the project through public participation, we surveyed our participants (n = 944) to understand their demographics and motivations for engagement. Survey results also revealed that EchidnaCSI served as a gateway into citizen science more generally for many participants. EchidnaCSI demonstrates the potential for using citizen science approaches to collect high-quality data and material from a cryptic species over a very large geographic area and the considerable engagement value of citizen science research.

A Great Service to African Conservation Science.

A Great Service to African Conservation Science.

How percentage-protected targets can support positive biodiversity outcomes.

Global targets for the percentage area of land protected, such as 30% by 2030, have gained increasing prominence, but both their scientific basis and likely effectiveness have been questioned. As with emissions‐reduction targets based on desired climate outcomes, percentage‐protected targets combine values and science by estimating the area over which conservation actions are required to help achieve desired biodiversity outcomes. Protected areas are essential for achieving many biodiversity targets, in part because many species are highly sensitive to human‐associated disturbance. However, because the contribution of protected areas to biodiversity outcomes is contingent on their location, management, governance, threats, and what occurs across the broader landscape matrix, global percentage‐protected targets are unavoidably empirical generalizations of ecological patterns and processes across diverse geographies. Percentage‐protected targets are insufficient in isolation but can complement other actions and contribute to biodiversity outcomes within a framework that balances accuracy and pragmatism in a global context characterized by imperfect biodiversity data. Ideally, percentage‐protected targets serve as anchors that strengthen comprehensive national biodiversity strategies by communicating the level of ambition necessary to reverse current trends of biodiversity loss. If such targets are to fulfill this role within the complex societal process by which both values and science impel conservation actions, conservation scientists must clearly communicate the nature of the evidence base supporting percentage‐protected targets and how protected areas can function within a broader landscape managed for sustainable coexistence between people and nature. A new paradigm for protected and conserved areas recognizes that national coordination, incentives, and monitoring should support rather than undermine diverse locally led conservation initiatives. However, the definition of a conserved area must retain a strong focus on biodiversity to remain consistent with the evidence base from which percentage‐protected targets were originally derived.

Plastics in robots: a degradation study of a humanoid skin mask made of soft urethane elastomer

Understanding the degradation of plastic materials is a big challenge for curators, conservators and conservation scientists in museums worldwide aiming to preserve their collections due to the variety of formulations of synthetic polymers and pigments. The conservation of polyurethane (PUR) based objects is challenging because they can suffer from extensive degradation. Particularly PUR elastomers can degrade shortly after their production, as occurred to the mask of the Japanese robot SAYA, which within 8 years suffered from two large tears, discoloration and stickiness. This research aims at studying the degradation phenomena of the androids’ synthetic skin. Better knowledge of the chemical composition of the mask and the chemical and physical decay will contribute to planning a suitable stabilization treatment. Within a multi-analytical approach, colorimetric and microscopic investigations highlighted discolored areas, which showed further color changes within a five months monitoring campaign, confirming the instability of the material likely due to ongoing degradation. Raman microscopy allowed the identification of Pigment White 6 (titanium dioxide TiO2) in the anatase form, known to promote the photosensitivity of PUR substrates towards ultraviolet (UV) light. Attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy identified the PUR composition of the mask, the presence of phthalates as plasticizers and suggested the formation of quinone chromophores in the polymer structure as a result of photo-oxidation, possibly responsible for the mask yellowing. Evolved gas analysis-mass spectrometry (EGA-MS) and double-shot-gas chromatography/mass spectrometry (TD/Py–GC/MS) analyses support the characterization of the formulation of the mask as being made of methylene diphenyl diisocyanate (MDI) PUR ether elastomer. Plasticizers in high concentration, mainly diisononyl phthalate (DINP) and bis(2-ethylhexyl)phthalate (DEHP), and the UV stabilizer Tinuvin 328 were also detected. In addition, the presence of styrene-acrylonitrile (SAN) could also contribute to the mask’s chemical instability. More amount of UV stabilizer and phthalates were detected at the surface (contributing to its stickiness) than in the inner core. The degradation of the mask results from the light susceptibility of MDI PUR ether and SAN, as well as the higher photochemical activity of anatase. The mask was transferred on to a mannequin and placed in the storage area to prevent light exposure and photo-oxidation. As loose edges had to be stabilized, tests were conducted and adhesive stripes glued with a PUR dispersion were selected for keeping the head’s shape. The novelty of this study is the implementation of conservation science on the study of androids with PUR elastomeric components in robotic collections, which are becoming increasingly popular in technical museums, however still seldomly studied.

Using multi‐scale spatially explicit frameworks to understand the relationship between functional diversity and species richness

Understanding how ecosystem functioning is impacted by global change drivers is a central topic in ecology and conservation science. We need to assess not only how environmental change affects species richness, but also how the distribution of functional traits (i.e. functional diversity) mediate the relationship between species richness and ecosystem functioning. However, most evidence about the capacity of functional diversity to explain ecosystem functioning has been developed from studies conducted at a single spatial scale. Here, we explore theory, expectations and evidence for why and how species richness and functional diversity relationships vary with spatial scale. Despite the importance of accounting for spatial processes at multiple scales, we show that most studies of the species richness–functional diversity relationship focus on single scale analyses that ignore spatial context. Thus, we discuss the need to establish a spatially explicit, multi‐scale framework for understanding the relationship between species richness and functional diversity. As a starting point to developing such a framework, we detail some expected trajectories and mechanisms by which the diversity of species and functional traits may change across increasing spatial scales. We also explore what is known about two important gaps in the literature about this relationship: 1) the influence of spatial autocorrelation on community assembly processes and 2) the variation in the structure of species interactions across spatial extents. We present some key challenges that could be addressed by integrating approaches from community and landscape ecology. This information will help improve our understanding of the relative influence of local and large‐scale processes on community structure, while providing a foundation for improving biodiversity monitoring, policy and ecosystem function based conservation.

Conservation frontiers: understanding the geographic expansion of conservation

ABSTRACT Land-use frontiers, such as agriculture expanding into forests, remain a major driver of biodiversity loss, and often lead to conservation responses. To better understand the geographies of conservation, connecting conservation with tools used widely in Land System Science – particularly the frontier concept – allows assessing the patterns, actors, and drivers of conservation. We propose that land conservation can be analysed through three different perspectives. First, conservation can be framed as efforts to slow or stop other frontiers. Second, the expansion of conservation could itself be described as a frontier process, similarly leading to institutional and cultural reorganization, and sometimes conflicts (e.g. green grabbing). Third, frontiers can be seen as spaces where multiple land uses, including conservation, interact. Analysing conservation through these perspectives could be particularly powerful to thoroughly consider the social-ecological contexts in which conservation happens, and thus to bridge the disciplines of Land System Science and Conservation Science.

Trends in American scientists’ political donations and implications for trust in science

Scientists in the United States are more politically liberal than the general population. This fact has fed charges of political bias. To learn more about scientists’ political behavior, we analyze publicly available Federal Election Commission data. We find that scientists who donate to federal candidates and parties are far more likely to support Democrats than Republicans, with less than 10 percent of donations going to Republicans in recent years. The same pattern holds true for employees of the academic sector generally, and for scientists employed in the energy sector. This was not always the case: Before 2000, political contributions were more evenly divided between Democrats and Republicans. We argue that these observed changes are more readily explained by changes in Republican Party attitudes toward science than by changes in American scientists. We reason that greater public involvement by centrist and conservative scientists could help increase trust in science among Republicans.

Altmetric Scores in Conservation Science have Gender and Regional Biases

Altmetric Scores in Conservation Science have Gender and Regional Biases

Conservation and Communication Strategy for the Grand Canal Cultural Heritage with the Theoretical Framework of 5Cs

Since ancient China, the Grand Canal has become the backbone of the nation, exerting profound and far reaching influence on Chinese communication and transportation system. Studies concerning the Grand Canal have increased greatly since it entered into the World Heritage List in 2014. However, most researches are focused upon practical issues, such as repairing or restoring relative river canals, scenery spots and museums. Under the more complex and serious conditions of world ecosystem and cultural conflicts, more research work is needed to enhance the theoretical understanding for the Grand Canal and promote the Grand Canal Cultural Heritage globally, aiming to build a community of shared future for mankind. With the guidance of "5Cs" of <i>Operational Guidelines for the Implementation of the World Heritage Convention</i>, this paper discusses better conservation and communication strategies for the Grand Canal by highlighting its outstanding universal value, improving its credibility with scientific conservation of the authenticity and integrity of the Grand Canal, focusing on capacity-building for better convention and application of the cultural heritage resources and encouraging social communities to work together for the global communication of the Grand Canal. Meanwhile, a multi-modal and multilingual database for the historical and cultural resources of the Grand Canal will be established by means of big data, digital technology and all-media technology. It is hoped to provide meaningful reference for the more rational and scientific conservation and communication of the Grand Canal while China is planning to build the National Grand Canal Cultural Park.

An improved ARIMA Stock Price Forecasting Method Based on B-spline Expansion and Model Averaging

Aiming at the limitation of ARIAM model in predicting stock prices with relatively complex fluctuation trends, this paper proposes an improved ARIMA method (BMA-ARIMA) based on B-spline basis expansion and model averaging. The proposed method uses intraday prices as auxiliary information and considers its functional characteristics. By combining the two methods of parallel model averaging and recursive model averaging, the intraday price function features extracted based on the B-spline expansion method can be used to the greatest extent to fit the residuals predicted by the ARIMA model, thereby improving the prediction accuracy of ARIMA. In addition, since the regression prediction method in the model averaging stage is model-free, when the nonlinear regression model is selected, it can capture the linear and nonlinear information of the intraday price function characteristics. Specifically, this paper uses CART as the base model, and the actual data analysis results show that BMA-ARIMA can improve the prediction accuracy of the ARIMA model and has certain robustness. Finally, the method can theoretically be extended to time series forecasting in the fields of medicine, water conservancy, electric power and environmental science.

Overcoming inertia to deliver sentience policy commensurate with sentience science

Rowan et al’s target article makes clear that meaningful change in policy and practice to protect animals has failed to progress in lockstep with scientific understanding of their sentience and needs. The underlying causes for inertia in political and practical progress for animals in the UK context are multi-faceted and complex, including economic forces; lack of cross-departmental accountability for animal welfare; and challenges where it suits conservation scientists to dismiss or downgrade the impacts of management decisions on individual animals. All of these influences and more must be understood and addressed if we are to deliver meaningful and timely protections for sentient animals.

Successes and challenges in laser cleaning metal artefacts: A review

Over the past fifty years, laser cleaning has progressively become an established conservation cleaning treatment for a range of artefacts, including stone, ceramics and paintings. While its application to metal is not widespread, there have been several reports of laser cleaning on metal artefacts. However, the findings of these studies sometimes appear contradictory suggesting the laser cleaning outcome is strongly case-dependent and making it difficult to assess whether laser cleaning is a suitable technique for metal artefacts. The aim of this article is to give an overview of the research performed on the most commonly encountered metals in cultural heritage, i.e. copper, iron, silver and gold. This review shows that carefully selecting the laser wavelength, pulse duration and operating conditions (e.g. whether or not a wetting agent or inert gas is used) is crucial for optimising the laser cleaning outcome. It also highlights the importance of systematically assessing the outcomes of laser cleaning and will be helpful for conservators to understand whether laser cleaning might be suitable to conserve metal artefacts in their care. Further, this work represents a useful starting point for conservation scientists to plan future research in the laser cleaning of metals.

A QUÍMICA ANALÍTICA APLICADA AOS ESTUDOS DE PIGMENTOS RUPESTRES: UMA REVISÃO

Instrumental advances have been employed in the study of archeological remains such as prehistoric rupestrians paintings with the objective of chemically characterizing them in order to reconstruct the cultural technologies of a prehistoric human group and/or to support conservation science studies. The analytical techniques most commonly used in archaeometric research are non-destructive or semi-destructive and preferably portable to preserve the integrity of the rupestrians paintings. They include X-ray Fluorescence Spectrometry (XRF), Scanning Electron Microscopy coupled with Energy Dispersive Spectroscopy (SEM/EDS), Raman spectroscopy, X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Laser-induced Breakdown Spectroscopy (LIBS), and the many techniques with emerging applications such as Mössbauer Spectroscopy, X-ray Absorption Near Edge Structures (XANES), Particle Induced X-ray Emission Spectrometry (PIXE) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA ICP-MS). Therefore, this paper presents a review of the literature on the development of chemical strategies employed in the study of rock art, focusing mainly on the critical evaluation of analytical techniques used, limitations, challenges and the perspectives within this area of study

Non-Fungible Tokens, Crypto-Assets and Web3: What’s in It for Conservation Science?

Non-Fungible Tokens, Crypto-Assets and Web3: What’s in It for Conservation Science?

Development of the text of the Ramsar Convention: 1965–1971

The ‘Ramsar’ Convention on Wetlands was the first of the modern era global biodiversity conventions and remains the only multilateral environmental agreement focused on a single group of ecosystem types. At the time of initial discussions within the wetland conservation science community in the late 1960s, its ambition was unprecedented, with no successful models to draw upon, especially with regard to novel concepts such as the modus for an ‘internationally protected site’. Drawing on previously unpublished draft texts, we track the Convention’s textual development to its ultimate agreement in 1971. During this period its geographic scope changed from an initial European to global focus, whereas core obligations related to the designation of internationally important wetlands and the provision of secretariat coordination functions were substantively developed. We present (as supplementary material) all draft texts, from 1965 to 1971, previously unavailable online.

Integrating scientific and Aboriginal knowledge, practice and priorities to conserve an endangered rainforest ecosystem in the Kimberley region, northern Australia

SummaryAustralia’s diverse plants and animals evolved for tens of thousands of years with Aboriginal biocultural knowledge, land management and cultural practice. The interdependency of this biocultural knowledge and land management practice is still ecologically relevant today but is only recently being acknowledged in mainstream scientific conservation management processes and research. We present an example of cross‐cultural collaborative management of the endangered monsoon vine thickets of the Dampier Peninsula, West Kimberley, northern Australia. These vine thickets occur as a network of over 80 patches in the lee of coastal dunes on the Peninsula, and are ecologically rich (containing 25% of Peninsula plant species) and culturally important for Peninsula Aboriginal groups for food, medicine, camping, cultural ceremonies and law. Adversely affected by land‐clearing, weeds and wildfires, the vine thickets were listed as nationally endangered in 2013. The overlapping significance of the vine thickets by scientific and Aboriginal knowledge systems resulted in the formation of the Monsoon Vine Thicket Project in 2008 that aimed to document and conserve the ecosystem and its associated culture. The project has grown successfully over 13 years and has been guided by cross‐cultural collaboration principles of respect for: cultural knowledge, practices and priorities; cultural knowledge holders; and long‐term partnerships. The project has resulted in considerable outcomes in weed and fire management; seed collection, propagation and revegetation; community education; and the documentation, transfer and practice of Aboriginal biocultural knowledge. The greatest challenge for the project has been to better prioritise cultural activities, with examples provided of how this can increase benefits to both ecological conservation and cultural maintenance. The project’s strength was its cross‐cultural approach and resultant respectful and trusting relationships that allowed for project flexibility and adaptation and for the collaborative partners to learn and develop capacity. The integration of cultural and scientific knowledge and practice resulted in greater conservation outcomes for monsoon vine thickets of the Dampier Peninsula, and we believe is an important cross‐cultural model for ecosystem management elsewhere in Australia.