Biodiversity Conservation Practices Research Articles

Incidental invertebrate‐derived DNA detection of invasive and threatened species in temperate dry Southeast Australian forest

AbstractWell‐informed biodiversity conservation practice can often be precluded by poor species detectability. For example, populations being missed during surveys can lead to them being omitted from species lists or area management plans. iDNA (invertebrate‐derived DNA) is a recently developed set of techniques for improving the detectability of elusive vertebrates by exploiting their associated invertebrates. Parasitic and scavenging invertebrates can be readily collected, and their gut contents DNA barcoded to detect local vertebrate diversity. However, most iDNA surveys have targeted mammals and have been carried out in tropical areas and/or rainforests. We carried out iDNA surveys targeting frogs in temperate dry sclerophyll forests in south‐eastern Australia. We set mosquito traps broadcasting recorded frog calls with the aim of collecting frog‐biting flies, which are attracted to frog calls. We collected 156 fly specimens, although none were of frog‐biting species, and no frogs were detected via iDNA, despite many being observed in the field. However, two mammal and one reptile species were detected via iDNA: the feral cat (Felis catus: Felidae), domestic dog or dingo (Canis lupus: Canidae) and the threatened Rosenberg's monitor (Varanus rosenbergi: Varanidae). Vertebrate‐sampling flies are likely highly abundant in the area since they were collected apparently incidentally in traps lacking appropriate attractants; a promising result for further surveys is different attractants are employed. This study is one of the few in which an invasive species has been detected through iDNA, and highlights its potential for improved detectability of threatened species outside of the tropics and early detection of invasive species.

Socioeconomic aspects of utilizing non-timber forest products in Myanmar: A review

Approximately 70 % of Myanmar’s population resides in rural areas, and most rural households rely on forest resources for their livelihood. Characterizing patterns of forest resource utilization by forest-dependent people is critically important for developing strategies to mitigate forest degradation and deforestation as well as for forest conservation in Myanmar. We reviewed the socioeconomic aspects of non-timber forest product (NTFP) utilization in Myanmar to evaluate the current status of our knowledge of NTFPs and their contributions to the livelihoods of rural people in Myanmar to clarify paths for commercializing NTFPs. Our findings confirmed that the rural population heavily depends on NTFPs. In light of the important role that NTFPs play in enhancing the livelihoods of rural communities in Myanmar, more studies of NTFP commercialization and forest and biodiversity conservation practices, especially regional field studies, are needed.

Integrative Conservation: A new journal from the conservation frontline

<i>Integrative Conservation</i>: A new journal from the conservation frontline

Ethics in biodiversity conservation: The meaning and importance of pluralism

Addressing the global extent of the current biodiversity crisis requires engaging with the existence of multiple equally legitimate values, but also with diverse ethical perspectives underpinning conceptions of right and wrong actions. However, western monist positions have mostly explicitly or implicitly directed conservation strategies by defining the space of legitimate arguments, overlooking solutions that do not fit neatly the chosen approaches. As ignoring diverse ethical positions leads to injustices and reduces the potential of conserving biodiversity, there is a need to recognise and navigate the ethical landscape. Ethical pluralism may provide opportunities to do so. However, the ethical underpinnings of pluralism have not been fully considered in biodiversity conservation. In this article, we elaborate the meaning, importance and limits of ethical pluralism while highlighting opportunities and challenges that the position may entail in biodiversity conservation science and practice. We argue that ethical pluralism allows recognising not only the existence of incommensurable plural values, but also that moral conflicts should embrace intra and inter-cultural criticism and the legitimacy of agonism and dissent, as opposed to monistic and relativistic approaches. We conclude by discussing how grounding ethical pluralism in environmental justice and environmental pragmatism may contribute to navigating the ethical landscape in biodiversity conservation. Particularly, we highlight opportunities to: i) promote (non-anthropocentrically understood) recognition and environmental justice in biodiversity conservation and, ii) move beyond theoretical debates seeking the single best ethical theory and focus on ethical diversity as a common source of possible solutions.

Knowledge about Plant Coexistence during Vegetation Succession for Forest Management on the Loess Plateau, China

Coexistence between species within plant communities is a key issue in the practice of revegetation, forest management, and biodiversity conservation. Vegetation restoration is critical to control soil erosion and improve the ecological environment on the Loess Plateau. Here, we investigate the interspecific relationships of dominant plants during natural vegetation succession on the Loess Plateau. The results suggest that, under the ecological process of environmental filtering, species within communities can reduce interspecific competition and promote species coexistence via spatial heterogeneity and temporal asynchronous differences. The ecological niche overlap index (Oik) significantly and positively correlated with the strength of interspecific associations. Most species pairs had weak competition and more stable interspecific relationships. The results of the χ2 test showed that 317 species pairs were positively associated and 118 were negatively associated. The community is in a positive succession process, and the interaction relationship between species tends to be neutral. We should enhance the protection of positively associated species and pay attention to negatively associated species during forest management. Results revealed that Carex lanceolata Boott and Lespedeza bicolor Turcz coexisted easily with other species for mutual benefit, which could help build artificial forestland of native species to improve the ecological function.

Combined retention of large living and dead trees can improve provision of tree-related microhabitats in Central European montane forests

Retention of habitat trees is a common biodiversity conservation practice in continuous cover forests of temperate Europe. Commonly, living habitat trees are selected on the basis of their tree-related microhabitats (TreMs) such as cavities or crown deadwood. Owing to the increasing frequency and intensity of climate change-related disturbances, habitat trees in particular are expected to experience increased mortality rates. This may impact the long-term provisioning of TreMs. Here, we compared the TreM occurrence on living and dead trees to investigate whether dead trees support more and other TreMs than living trees. We also hypothesized that a combination of living and dead trees results in the most diverse stand-level TreM composition. We surveyed the TreM composition of living and dead habitat trees in 133 one-hectare plots in the Black Forest region managed according to a continuous cover approach. We fitted generalized linear mixed models to identify the main predictors of TreM occurrence to predict their abundance and richness. Tree identity (as a combination of species and vitality status) and diameter were the main drivers of TreM abundance and richness, which were highest on dead Abies alba. Even though dead A. alba and Picea abies supported TreM numbers similar to those provided by large living trees, their TreM composition was significantly different. This suggests that dead trees cannot substitute the habitat functions of living habitat trees, but they can complement them to increase the overall stand-level TreM diversity, in particular through decayed, large snags.

Sustainable development and stakeholder engagement in the agri‐food sector: Exploring the nexus between biodiversity conservation and information technology

AbstractOrganizations across various industries engage in biodiversity conservation as a way to achieve sustainable development and to manage stakeholder engagement expectations. Although the importance of information and communication technology to promote biodiversity conservation has been recognized, little attention has been devoted to shedding more light on corporate practices in this area. This study explores how organizations do use information technology and reporting practices to influence stakeholders' perceptions on biodiversity initiatives. Data are collected from agri‐food companies listed by the Fortune Global 500. Based on a qualitative content analysis approach, this research found that geospatial technologies and web‐based features support organizations' impression management efforts with regard to their biodiversity conservation practices. More precisely, our findings suggest that organizational impression management tactics of abstraction, selectivity and self‐promotion are used to rationalize corporate actions in this area. The paper develops a better understanding of corporate tactics aimed at influencing stakeholders' perceptions of the reliability and credibility of companies' biodiversity conservation practices. Implications of the results for the stakeholders of business organizations are also discussed. This study offers contributions to the body of literature on biodiversity reporting, communication technology and impression management tactics. Managerial implications and avenues for future research are also described.

Griffon vultures, livestock and farmers: Unraveling a complex socio-economic ecological conflict from a conservation perspective

An unexpected human-wildlife conflict between vultures and livestock has emerged in Europe during the last two decades. Farmers attributed changes in vulture behavior, due to food shortages caused by sanitary regulations, to increasing livestock interactions (‘vulture attacks’). To disentangle this conflict, we analyzed 683 farmer complaints between 1996 and 2020 in Catalonia (northeastern Spain) and investigated the eco-anthropological factors driving their frequency. We also assessed farmers' perception through 127 interviews. Most complaints (80 %) occurred during the birthing season, mainly involving cattle (76.5 %), followed by horses (14.9 %) and sheep/goats (8.6 %). From 2008 to 2020, vulture-livestock conflicts cost the government €192,000 (~22 % of claims compensated). The frequency of complaints was positively associated with extensive livestock density, griffon vulture Gyps fulvus abundance (breeding and non-breeding), shorter distances to landfill sites and, to a lesser extent, to supplementary feeding stations. In contrast, there was a negative relationship between complaints and the number of griffon vulture breeding pairs, suggesting that long-distance foraging movements by both breeding and non-breeding individuals may play a major role in determining the occurrence of conflicts. Farmers (88 %) said that vultures attack livestock and that attacks had increased in recent years because of significant vulture population increases and food shortages due to sanitary regulations. They considered government policies and compensation ineffective. We highlight the critical need for mitigation in areas with high extensive livestock numbers, particularly during birthing times. Scientific assessments and interdisciplinary awareness campaigns on the coexistence of vultures and livestock are necessary to harmonize biodiversity conservation and agro-pastoral practices in rural economies.

Climate-smart conservation: An opportunity for transformative change in the mainstream conservation movement

It is increasingly apparent that biodiversity conservation science, policy, and practice need to account for a rapidly changing climate. In this issue of One Earth, Rhodes et al. propose a conceptual framework designed to assist conservation management in the new climate normal. Here, I discuss how effective and equitable biodiversity conservation under climate change also requires transformative governance models. It is increasingly apparent that biodiversity conservation science, policy, and practice need to account for a rapidly changing climate. In this issue of One Earth, Rhodes et al. propose a conceptual framework designed to assist conservation management in the new climate normal. Here, I discuss how effective and equitable biodiversity conservation under climate change also requires transformative governance models. Flexible conservation decisions for climate adaptationRhodes et al.One EarthJune 17, 2022In BriefThe impacts of climate change on biodiversity and the effectiveness of different conservation adaptation options are prone to high levels of uncertainty. Strategically building flexibility into conservation plans to allow future modification in response to climate change is an important way to reduce exposure to climate risks. We develop a conceptual framework to enable a more structured approach to building flexibility into conservation that explicitly links types of flexibility to climate risks and conservation decision-making processes. Full-Text PDF

A Survey of the Role of Environmental Education in Biodiversity Conservation in the Greater Accra Region of Ghana

Biodiversity in all its forms has come under threat. The rate of biodiversity loss has attracted global attention, and most governments are trying to put measures into place to reduce the rate of loss. One way to ensure that people are conscious of biodiversity conservation is through education. However, studies on creating awareness for biodiversity conservation have received less attention in the literature. To address this knowledge gap, this study used questionnaires to investigate the role of education in biodiversity conservation in the Greater Accra Region of Ghana. The study found that environmental education, particularly an awareness of biodiversity conservation, is critical for conserving biodiversity. However, people’s knowledge of biodiversity conservation is too weak or inadequate to motivate them to incorporate biodiversity conservation practices into their daily activities. Furthermore, understanding the importance of biodiversity conservation comes with an increase in age. Increasing education on biodiversity conservation at an early age can help people become more aware of biodiversity conservation as they age, and they can incorporate it into their daily activities to reduce biodiversity loss. The study calls for a revision of the environmental education syllabus at various levels, particularly the basic and SHS levels, including more practical topics to help people change their attitudes and perceptions and incorporate biodiversity into their daily activities.

Spatial priorities for freshwater biodiversity conservation in light of catchment protection and connectivity in Europe.

Freshwater ecosystems host disproportionately high numbers of species relative to their surface area yet are poorly protected globally. We used data on the distribution of 1631 species of aquatic plant, mollusc, odonate and fish in 18,816 river and lake catchments in Europe to establish spatial conservation priorities based on the occurrence of threatened, range-restricted and endemic species using the Marxan systematic conservation planning tool. We found that priorities were highest for rivers and ancient lakes in S Europe, large rivers and lakes in E and N Europe, smaller lakes in NW Europe and karst/limestone areas in the Balkans, S France and central Europe. The a priori inclusion of well-protected catchments resulted in geographically more balanced priorities and better coverage of threatened (critically endangered, endangered and vulnerable) species. The a priori exclusion of well-protected catchments showed that priority areas that need further conservation interventions are in S and E Europe. We developed three ways to evaluate the correspondence between conservation priority and current protection by assessing whether a cathment has more (or less) priority given its protection level relative to all other catchments. Each method found that priority relative to protection was high in S and E Europe and generally low in NW Europe. The inclusion of hydrological connectivity had little influence on these patterns but decreased the coverage of threatened species, indicating a trade-off between connectivity and conservation of threatened species. Our results suggest that catchments in S and E Europe need urgent conservation attention (protected areas, restoration, management, species protection) in the face of imminent threats such as river regulation, dam construction, hydropower development and climate change. Our study presents continental-scale conservation priorities for freshwater ecosystems in ecologically meaningful planning units and will thus be important in freshwater biodiversity conservation policy and practice, and water management in Europe.

Plant diversity improves resistance of plant biomass and soil microbial communities to drought

Abstract Biodiversity is known to affect ecosystem resistance and have implications for the maintenance of ecosystem functions and services under climate change. Compared to numbers of studies focusing on above‐ground vegetation, the response of below‐ground communities to abiotic stresses along plant diversity gradients is often ignored and is considered an important knowledge gap in ecosystem ecology. Here we conducted an integrative research to evaluate the resistance of plant biomass, and soil microbial communities and associated functional profiles to drought under varying plant diversity. We carried out a 3‐year manipulation experiment by factorially controlling plant diversity gradient (1, 2, 4 and 8 species richness) and soil moisture treatment (drought and non‐drought), and investigated the responses of plant biomass, soil bacterial and fungal diversity and community composition, soil glomalin, and five key soil enzymes. We found that plant diversity significantly improved the resistance of soil fungal communities and microbial functional profiles characterized by soil glomalin and five key enzymes, which was partly driven by the availability and accessibility of soil resources (e.g. soil moisture and organic matter) mediated by plant diversity. Furthermore, our results indicated that the enhanced resistance of fungal communities was consistent with ecological insurance theory that diverse fungal communities at high plant diversity had a higher probability of containing taxa that adapt to drought. Synthesis. Our study provides novel empirical insights into the mechanism underlying the regulatory effect of plant diversity on resistance of above‐ground vegetation and below‐ground biota to drought, with implications for understanding ecosystem response to climate change and improving biodiversity conservation practices.

Cost-effective surveillance of invasive species using info-gap theory

Invasive species can lead to community-level damage to the invaded ecosystem and extinction of native species. Most surveillance systems for the detection of invasive species are developed based on expert assessment, inherently coming with a level of uncertainty. In this research, info-gap decision theory (IGDT) is applied to model and manage such uncertainty. Surveillance of the Asian House Gecko, Hemidactylus frenatus Duméril and Bibron, 1836 on Barrow Island, is used as a case study. Our research provides a novel method for applying IGDT to determine the population threshold (K) so that the decision can be robust to the deep uncertainty present in model parameters. We further robust-optimize surveillance costs rather than minimize surveillance costs. We demonstrate that increasing the population threshold for detection increases both robustness to the errors in the model parameter estimates, and opportuneness to lower surveillance costs than the accepted maximum budget. This paper provides guidance for decision makers to balance robustness and required surveillance expenditure. IGDT offers a novel method to model and manage the uncertainty prevalent in biodiversity conservation practices and modelling. The method outlined here can be used to design robust surveillance systems for invasive species in a wider context, and to better tackle uncertainty in protection of biodiversity and native species in a cost-effective manner.

The virtue of compassion in compassionate conservation.

The role of ethics is becoming an increasingly important feature of biodiversity conservation dialogue and practice. Compassionate conservationists argue for a prohibition of, or at least a strong presumption against, the adoption of conservation policies that intentionally harm animals. They assert that to be compassionate is to care about animals and that it is antithetical to caring for animals to intentionally harm them. Compassionate conservationists thus criticize many existing conservation practices and policies. Two things together challenge the philosophical foundation of compassionate conservation. First, compassionate conservationists ground their theory in virtue ethics, yet virtue ethics permits exceptions to moral rules, so there cannot be an in-principle prohibition on adopting intentional harm-inducing policies and practices. But not all compassionate conservationists advocate for a prohibition on intentionally harming animals, only a strong presumption against it. This leads to the second point: compassion can motivate a person to adopt a harm-inducing conservation policy or practice when doing so is the best available option in a situation in which animals will be harmed no matter what policy or practice is adopted. Combining these insights with the empirical observation that conservationists regularly find themselves in tragic situations, we arrive at the conclusion that conservationists may regularly advocate for harm-inducing policies and practices from a position of compassion. Article Impact Statement: Compassionate conservationists should accept that the virtuously compassionate person may adopt harm-causing conservation policies.

Ex situ conservation in botanical gardens – challenges and scientific potential preserving plant biodiversity

In the Anthropocene, the world’s plant diversity is threatened with extinction and the erosion of the genetic diversity of natural populations. According to the State of the World’s Plants and Fungi 2020 of the Royal Botanic Gardens, Kew, two out of five of the ~350,000 known vascular plant species are at risk of extinction. Despite the considerable toolkit of biodiversity conservation practices, usually it is hard to choose the best option to stop biodiversity loss. Ex situ conservation has seen massive development due to radical losses of natural ecosystems, and its incrementing necessity has been underscored by Target 8 of the 2011-2020 Global Strategy for Plant Conservation. As we crossed the finish line of this strategy in 2020, a review of the accumulated knowledge on the ex situ living collections has become particularly important. Despite the increasing attention received by ex situ conservation, studies on the sustainability, quality, and usability of the plant material prior to establishing the garden collections are few, leaving major gaps unfilled in terms of best ex situ conservation practices. Here we present an overview of the results and experiences in ex situ conservation focusing on living plant collections, with the aim of guiding conservation practitioners towards the most efficient working methods. We evaluate the future needs and perspectives of this conservation technique, based on case studies on both woody and herb species. Possible conservation applications and priorities suggested for future works are summarized.

Bridging research and practice in conservation.

Calls for biodiversity conservation practice to be more evidence based are growing, and we agree evidence use in conservation practice needs improvement. However, evidence‐based conservation will not be realized without improved access to evidence. In medicine, unlike in conservation, a well‐established and well‐funded layer of intermediary individuals and organizations engage with medical practitioners, synthesize primary research relevant to decision making, and make evidence easily accessible. These intermediaries prepare targeted evidence summaries and distribute them to practitioners faced with time‐sensitive and value‐laden decisions. To be effective, these intermediaries, who we refer to as evidence bridges, should identify research topics based on the priorities of practitioners; synthesize evidence; prepare and distribute easy‐to‐find and easy‐to‐use evidence summaries; and develop and maintain networks of connections with researchers and practitioners. Based on a review of the literature regarding evidence intermediaries in conservation and environmental management, as well as an anonymous questionnaire searching for such organizations, we found few intermediaries that met all these criteria. Few evidence bridges that do exist are unable to reach most conservation practitioners, which include resource managers in government and industry, conservation organizations, and farmers and other private landowners. We argue that the lack of evidence bridges from research to practitioners contributes to evidence complacency and limits the use of evidence in conservation action. Nevertheless, several existing organizations help reduce the gap between evidence and practice and could serve as a foundation for building additional components of evidence bridges in conservation. Although evidence bridges need expertise in research and evidence synthesis, they also require expertise in identifying and communicating with the community of practitioners most in need of clear and concise syntheses of evidence.Article Impact Statement: Evidence‐based conservation will not be realized without improved access to evidence. We call for intermediary evidence bridges.

Usage of agrobiodiversity conservation practices among farmers in Niger State, Nigeria

The use of agro-biodiversity practices are key coping strategies in adapting to climate change. This study determined the level of use of Agro- biodiversity conservation practices, assessed the benefits of the practice and identified constraints to its use. A three- stage sampling technique was used to select 150 respondents on which a structured interview schedule was administered. Descriptive statistics and Pearson’s Product Moment Correlation were used for data analysis. Results shows that the use of animal dungs and plant residues as bio-fertilizers was common biodiversity practice among farmers. 82.5% of the farmers were in the low level of use of these practices. Constraints such as high cost of production lack of awareness of the use of these practices, were major constraints to the use of biodiversity practices. Age, years of schooling years of farming experience were significantly related to level of usage of Agro biodiversity practices. The study concludes that the level of use of Agro biodiversity practices among farmers was low and influenced by socioeconomic characteristics of the farmers. It recommends that government and other stake holders should provide necessary facilities for this practice. Extension agents should also sensitive farmers on the usefulness of Agro-biodiversity.&#x0D;

A framework of integrated research for managing introduced predators in the Pilbara bioregion, Western Australia

The effective control of wild dogs, feral cats and foxes is of primary interest to land managers, both for biodiversity conservation and for the protection of livestock. Control programs primarily target single species within the context of biodiversity conservation or livestock practices, but their effectiveness in depressing predator densities is unclear because monitoring is limited or not conducted. Here, we review and discuss the outcomes of a workshop to identify research priorities for managing predation on native fauna by introduced predators in the Pilbara bioregion in Western Australia. We suggest that the control of introduced predators will be most effective if it is implemented at a landscape-scale comprising integrated predator management that considers interspecific (predator) interactions combined with standardised monitoring to measure the effectiveness and benefits of control. Four research themes were identified: (1) collation and collection of baseline data, (2) effective monitoring of introduced predators, (3) understanding functional (ecological) roles of introduced predators within the different ecosystem contexts, and (4) identifying novel complementary approaches to protect threatened species. These themes collectively include research areas that invest in foundational, ecological and alternative biological parameters in research to close knowledge gaps related to the functional roles of introduced predators in the landscape. Addressing these research themes will assist land managers to achieve outcomes that address the needs of both biodiversity conservation and pastoral production. This framework is timely given the ongoing investment in offset funding being mobilised in the region.

Biodiversity Conservation Friendliness Status of Rural Farmers in Abak Agricultural Zone of Akwa Ibom State

Consolidating on farmers’ agro-ecological knowledge to design environmental-friendly agricultural systems is crucial given the environmental impact of commercial agriculture. The study aimed at assessing the awareness level of the respondents on biodiversity conservation, their biodiversity conservation information source(s), respondents’ information seeking behaviour and their perception towards biodiversity conservation. A survey was conducted on 120 respondents using simple random sampling procedure. Data collected were analysed using frequency distributions, and composite index analytical technique. Findings revealed that all of the respondents had average to high level of awareness of biodiversity conservation practices. Findings also revealed that the information on biodiversity conservation were mostly gotten from friends/neighbors, other farmers, radio/television and internet/electronic mails. The respondents had very positive or favourable perception of biodiversity conservation but biodiversity conservation information seeking behaviour of the respondents was not quite high. Six (6) independent variables contributed a multiple correlation influence (R= 0.606) on the respondents’ perception on biodiversity conservation. However, awareness of biodiversity conservation (b = 0.598, t = 6.882, P = 0.000) was found to significantly and statistically influence the respondents’ perception on biodiversity conservation. These findings are crucial for policy orientations, research and development to efficiently support the implementation of more environmental-friendly farming systems in the study area.

Assessment of forest carbon stocks for REDD+ implementation in the muyong forest system of Ifugao, Philippines.

Forests hold significant potential for carbon sequestration and climate change mitigation. Forest biomass estimation is vital for sustainable forest management, providing critical input data for implementing the United Nations Reducing Emissions from Deforestation and forest Degradation-plus (REDD+) mechanism. This study investigates the total carbon pools-aboveground biomass (AGB), belowground biomass (BGB), forest floor biomass, and soil carbon-using field-based information in the muyong forest management system, which is native to Ifugao in the Philippines. This study reveals that a difference may be observed between the total carbon stock of the private woodlots (muyong) and that of the communal forest (bilid). The results indicate that the bilid forest has trees with a small diameter at breast height (DBH) and high tree density in contrast to the muyong, which has trees with high DBH and low tree density. The average carbon stock per unit area is higher in muyong (150.8tC/ha) than in bilid (126.1tC/ha). These findings are valuable in determining whether Ifugao's muyong forest system should be included under the REDD+ framework. Human mediation and management helps forests to sequester a greater amount of carbon than they would without human intervention. Implementation of REDD+ should promote Ifugao's ecosystem and biodiversity conservation and agroforestry practices in addition to protecting traditional agricultural practices and livelihoods in relation to rice terraces.