Acoustic monitoring and analyses

The acoustic component of the project holds special significance, as it played a pivotal role in the automatic detection of over 138 species, with 95 of them being integrated into our pattern matching algorithms. This forms a robust foundation for the continuous monitoring of the region over the upcoming years, allowing us to observe how various environmental factors influence species presence

Our success in species detection was made possible through the data collected from the devices and the strategic partnerships we established, particularly with Rainforest Connection. Additionally, local experts played a crucial role in validating species presence.

The integrated passive acoustic monitoring combined with AI techniques allowed for the identification of 95 species. There is a positive correlation between species richness and low-canopy forest cover. Furthermore, the soundscape analyses revealed variations tied to different seasons and habitat types. However, the pilot encountered the challenge of  limited training data for rare species. To mitigate this, we conducted multiple rounds of sensor deployment across various seasons.

International Symposium

The symposium was guided by Foreign Affairs Office of Hainan Province, Department of Natural Resources and Planning of Hainan Province, Department of Ecology and Environment of Hainan Province, Forestry Department of Hainan Province; and supported by the big data lab of Research Institute for Eco-civilization, CASS, the research think tank of Research Institute for Eco-civilization, CASS, Institute of Zoology Chinese Academy of Sciences, Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences, Institute for Carbon Neutrality, Tsinghua University, Advanced Interdisciplinary Institute of Environment and Ecology, Huawei Technologies Co., Ltd., Hainan University, Hainan Normal University, Federation of Hainan Academicians, the Sanya Research Base of the Internation Centre for Bamboo and Rattan.

The two-day symposium focused on the theme of “conservation of the flagship species of tropical rainforests-gibbons” “conservation of tropical rainforests’biodiversity, and was held in a combination of online and offline activities.

On the occasion of the third anniversary of the establishment of the Hainan Institute of National Park and the 8th international gibbon day (24th October, 2022), the Forestry Department of Hainan Province, Wuzhishan municipai government, Hainan green island tropical rainforest public welfare foundation, and Hainan Institute of National Park co-sponsored the “2022 tropical rainforest international conservation symposium” themed “protecting tropical rainforest·realizing ecological values”, which was supported by Eco Foundation Global (EFG).

    The Conference reached the following concrete results:

    • Signing of the GGN Charter (Global Gibbon Conservation Network Charter).
    • l  Announcement of the establishment of the first GGN Secretariat at the Hainan Institute of National Park, and the global launch of the GGN Logo.
    • This is the first of China’s first five national parks, the first domestic conservation research organisations initiated the establishment of international organisations for the protection of cherished species protection, which is of historical significance.
    • Publish the Global Gibbon Network the declaration of conservation in the form of GGN joining hands with IUCN SSA, with the gibbon as the representative.
    • Introducing the List of Priority Species for Conservation in Hainan Tropical Rainforest National Park with the case of KBAs, and officially releasing the List of Priority Species for Conservation in Hainan Tropical Rainforest National Park.
    Sound pattern analysis

    The manual screening of 532 Hainan gibbon acoustic sample has been completed, including those obtained during tracking and observation of gibbons using a portable recorder and those obtained using an automated recorder. During the screening process, three recording qualities were initially categorized, namely hight, medium, and low. 44 high-quality recordings from seven individual callers were obtained. The seven individual callers were GAM1、GBM1、GBSA、GCM1、GCM2、GDM1、GEM1, where the letter after “G” represents the family group number and the letter after “M/S” represents the individual number of adult male/subadult male individual number. Only about 40.9% of the recordings were made manually. The raw files of all automated recordings were provided by the team of professor Wang Jichao, and the related data were backed up at Hainan Institute of National Park.

     

    Mel-frequency cepstrum coefficients (MFCCs) is a method of extracting frequency envelope features by cepstrum after weakening the high-frenquency information on the basis of human hearing[1], which has a wide range of applications in the field of human and bioacoustics. In this study, MFCCs and the first-order and second-order differences (△、△2) are used to achieve automated feature extraction.

     

    5 signature notes of the male Hainan gibbon have been identified (Fig.1), including boom note, aa note, pre-modulated note, modulated-R0 note, and modulated-R1 note. 

     

    According to the acoustic niche hypothesis, the calls of different species are differentiated in the time and frequency domains (see Fig. 2), so extracting features in a specific frequency range can greatly reduce the influence of noise, and the smaller the frequency range delineated, the more likely it is that more noise will be excluded. In addition, when the structure of each minimum recognition units (MRUs) is the same, the difficulty of recognition is greatly reduced.

     

    In view of the above situation, in this phase of the research, we tried (1) applying pre only and (2) using pre + n×mR0 as MRU, respectively, and comparing the classification results so as to determine the most appropriate feature extraction in the subsequent work. In the case of voice annotation, all the above steps can be implemented automatically by R language code.

    Experimental monitoring system

    The experimental monitoring system consists of a set of parameters to track the behaviour of the species, visitor mobility practices, and risk detection:

    • GPS transmitters: they are programmed for data collection and with a download scheduling; there is a zoning around the nest.
    • Axis Station software: Axis Loitering Guard tracks moving objects and triggers alerts (e.g. a user exists the trail for x amount of time), sound alerts, and notifications when a threshold is exceeded. Axis Fend Guard detects interaction events (e.g. the bird leaves the next, two users leave the trail).
    • Alerts for potential mortality, potential territory expulsion, absences at the nest, users near the nest, and noise thresholds.
    • Other data related to trail usage by user type and the Bonelli’s eagle breeding process.
    • Annual reports on raptor spatial mobility, semi-annual reports on interactions and critical events.

    It is essential to count on a simple-to-use software programmed with the desired parameters. It is fundamental to make the parameters as relevant as possible to the specific monitoring needs, and as concise as possible so that park managers are able to do a proper follow-up and respond to any alerts.

     

    It should be noted that certain situations involving wildlife cannot be controlled. For example, in our case, we faced the reproduction failure of the pair of Bonelli's eagles, which partly modified the monitoring objective.

    Although the use of a more sophisticated alert management software based on artificial intelligence is being explored, a simple software such as Axis Station can do the trick to start developing a functioning monitoring programme that notifies critical risk events. Processes and procedures for pre-alert management and data collection and analysis need to be periodically optimised based on the lessons learned during the process.

     

     

    Use of data for decision-making and planning.

    SAGE Findings:

    1. Little involvement of fisherwomen in LMMA decision-making, discriminated against because of mosquito net fishing.
    2. Lack of recognition of community rights to participate in LMMA decision-making.
    3. Major deficiencies in the process of complaints and follow-up of cases related to invasion of the reserves by the entire community due to the lack of inspection instruments.
    4. Deficit of collaboration and coordination, it does not share reports and plan of activities between different actors.

    Recommendations:

    1. Involve mosquito net fisherwomen at all stages of LMMA establishment and prioritize opportunity costs for them.
    2. Disseminate information on rights to participate in LMMA decision-making to all community.
    3. Encourage community to report offenders and follow up on cases related to the invasion of the reserves. 
    4. Promote regular meetings to share reports and activity plans between actors.

    Based on these recommendations, the project is implementing bivalve aquaculture, prioritising women’s involvement to address opportunity costs. We are supporting annual district, provincial and national stakeholder meetings. We are supporting CCPs with equipment for improved LMMA enforcement. We are strengthening CCP skills for communication and equitable governance through training by AMA.

    The purpose of this exercise needs to be well understood by the focus group members. It must exist a will to improve existing conditions by the focus groups members and they must recognise change is possible.

    SAGE and IMET methodologies are the simplest, fastest, easiest and cheapest way to evaluate and monitor the progress of a project. Before adopting these tools, the project used only EXCEL to analyse the data, and this was time consuming and expensive as we needed to hire consultants to conduct the surveys. Data analysis and interpretation was also done manually, which too was time consuming.

    Participatory Assessment

    Data Collection, Data Analysis and Data Synthesis:

    Organised groups of actors from different social backgrounds gathered for this process, which was facilitated using the local language and a translator was engaged to assist with the translation. To take into account the level of education of participants, we defined the appropriate means of communication. People participated according to the same interest group or social status (Community Fishery Council, fishermen, fisherwomen, government, influential members and income generation alternatives, among them). In the first phase, discussions were done separately and later discussed in plenary; after the discussion participants reached consensus, it is this consensus that was considered as the final response. To ensure that the selection of members taking part in each target group was inclusive, it did not take into consideration party affiliation, religion, social level, gender. During the meetings we also explained the importance of the SAGE process.

    FPIC standards (Former Prior Informed Consent) must be applied to maximise genuine participation. The data collection/facilitator team should be well known by the community members and recognised as trustful. There should be a sense of long-term engagement in support of the community.

    One of the lessons learned was to present the results of the issues discussed separately in a plenary, where members of different groups discuss the same ideas and reach consensus.

    A sign that we are valuing local knowledge.

    And that is good for the success of a community-managed conservation area.

    Stakeholder identification and analysis/site profile analysis.

    Analysis and identification of actors/stakeholder:

    In order to understand the stakeholders in the project area, all actors in the district who are capable of supporting the establishment of LMMAs were ranked by capacity to contribute to its implementation. The ranking was from 1 to 3 points (1 – low, 2 – medium and 3 – high). Only the stakeholders that had a score of 3 points were selected, namely, government, Community Fisheries Council, fishermen, fisherwomen, influential members (community and religious leaders) and alternative income generating activities groups.

    Stakeholders were then engaged through the SAGE/IMET methodologies, through the introduction and background workshops and through partaking in the assessments themselves.

     

    Profile of the study sites:

    Characterization of the study site which includes the type of habitat we are protecting, the species, the type of reserve we are implementing which are temporary and permanent reserve (temporary for short-lived species, in this case octopus and for the purpose of increasing household income, and permanent reserve or restocking for biodiversity conservation for generations to come, but the same may cause overflow of fish into the area where fishing is allowed) dimensions of the reserves, legal framework.

    Key enabling factors in this building block include involving project team members who have a strong and in-depth understanding of the communities and landscapes within which we work to ensure that all stakeholders are identified and then ranked correctly. Additionally, it is important to have a wide representation of team members to have an increased range of opinions on stakeholders’ capacity to implement LMMAs and how best to engage them.

    In order to ensure smooth data collection among the focus groups and stakeholders it is important to (i) have clear questions and make sure the issues were well perceived by everyone, (ii) take into account the time required for translations when necessary, and (iii) enable the expression the divergence of opinion. Furthermore, the multi-stakeholders consultation (featuring the presentation of IMET and SAGE assessments’ results) needed to be repeated several times to get buy-in from all stakeholders for elaborating the enhancement plans to improve the LMMA co-management plans. 

    Training participants in the SAGE and IMET tools.

    The first part of this project was training participants on SAGE. To make the SAGE more applicable to our situation, we chose six of the most important principles that are relevant to the LMMA:

    1: Respect for resource rights and human rights of community members

    3: Effective participation of all relevant actors in decision making

    4: Transparency, information sharing and accountability for actions and inactions

    8: Equitable sharing of benefits among relevant actors

    9: Achievement of conservation and other objectives

    10: Effective coordination and collaboration between actors, sectors and levels

     

    The SAGE methodology is a participatory process, conducted with: Community Fisheries Council, fishermen, livelihoods group, community and religious leaders, district and provincial government.

     

    The IMET was supported by two consultants from the National Administration of Conservation Areas. Various actors were invited: a) National Fisheries Administration, Provincial Service of Economic Activities, Provincial Directorate of Environment, Provincial Directorate of Tourism; b) District Service of Economic Activities, Maritime and Lake Police, Administrator of Quirimbas National Park and Justice Authority; c) Community Fisheries Councils, fishermen, community and religious Leaders).

    The two tools, IMET and SAGE, value local knowledge, so the contribution for all actors involved in the process was very positive. It was also a positive process because through this tool, the community understood that management power can be transferred to the community from the government, increasing their sense of ownership and empowerment. Prior to this, the majority of the community thought that the management of the reserves was only for the Conselho Comunitario de Pescass and not for the whole community.

    The good communication and the results of the opening of the temporary reserves (octopus) helped the communities to understand that the reserves belong to the community and are for the benefit of the community, hence neighbouring communities have started to request the project to create new conservation areas.

    Funded Projects

    Following two funding calls, a total of 17 projects were selected. The projects represent a very wide range of different approaches and solution ideas for pursuing the Alliance's goals, depending on the respective context.

    To increase the visibility of the projects and to foster knowledge exchange they are invited to present their ongoing work, intermediate goals and preliminary results to the Alliance community through posts on the website or at online events.

    Sufficient funding is necessary to ensure long-term support and sustainable implementation of the project goals.

    Continuous communication between those responsible for the project and the Alliance secretariat ensures the success of the project, the feedback of results to the community and thus added value for the community.

    Adequate feedback from project partners can be challenging and requires good communication strategies.

    Country packages

    The aim is to establish practices, rules and/or standards to reduce risks to the environment, human and animal health in trade in wild animals and wild animal products in selected partner countries in global biodiversity hotspot regions. Among other things, risk assessments, the design of educational measures in different formats (digital and non-digital campaigns, training courses, etc.) and the scientific monitoring of the implementation of good practices (e.g. impact assessments) are to be promoted. The Alliance brings the relevant actors together across sectors and use concrete findings to formulate adapted regulations or or supports the institutionalization of relevant practices.

    Existing political and GIZ structures, as well as other local partner organizations in the selected partner country.

    Depending on the initial situation in the partner countries, you have to start at different levels. In some cases working together at the political level is possible, in other places it is more effective to implement the goals via a partner organization that already has experience on site and a network of local actors.