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Feist F, Terranova F, Petersen GS, Tourtigues E, Friard O, Gamba M, Ludynia K, Gridley T, Pichegru L, Mathevon N, Reby D, Favaro L. Effect of Environmental Variables on African Penguin Vocal Activity: Implications for Acoustic Censusing. Biology (Basel) 2023; 12:1191. [PMID: 37759590 PMCID: PMC10525562 DOI: 10.3390/biology12091191] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023]
Abstract
Global biodiversity is in rapid decline, and many seabird species have disproportionally poorer conservation statuses than terrestrial birds. A good understanding of population dynamics is necessary for successful conservation efforts, making noninvasive, cost-effective monitoring tools essential. Here, we set out to investigate whether passive acoustic monitoring (PAM) could be used to estimate the number of animals within a set area of an African penguin (Spheniscus demersus) colony in South Africa. We were able to automate the detection of ecstatic display songs (EDSs) in our recordings, thus facilitating the handling of large datasets. This allowed us to show that calling rate increased with wind speed and humidity but decreased with temperature, and to highlight apparent abundance variations between nesting habitat types. We then showed that the number of EDSs in our recordings positively correlated with the number of callers counted during visual observations, indicating that the density could be estimated based on calling rate. Our observations suggest that increasing temperatures may adversely impact penguin calling behaviour, with potential negative consequences for population dynamics, suggesting the importance of effective conservation measures. Crucially, this study shows that PAM could be successfully used to monitor this endangered species' populations with minimal disturbance.
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Affiliation(s)
- Franziska Feist
- ENES Bioacoustics Research Team, University of Saint-Etienne, 42100 Saint-Etienne, France
| | - Francesca Terranova
- Department of Life Sciences and Systems Biology, University of Turin, 10124 Turin, Italy
| | - Gavin Sean Petersen
- Southern African Foundation for the Conservation of Coastal Birds (SANCCOB), Cape Town 7441, South Africa
| | - Emma Tourtigues
- ENES Bioacoustics Research Team, University of Saint-Etienne, 42100 Saint-Etienne, France
| | - Olivier Friard
- Department of Life Sciences and Systems Biology, University of Turin, 10124 Turin, Italy
| | - Marco Gamba
- Department of Life Sciences and Systems Biology, University of Turin, 10124 Turin, Italy
| | - Katrin Ludynia
- Southern African Foundation for the Conservation of Coastal Birds (SANCCOB), Cape Town 7441, South Africa
- Department of Biodiversity and Conservation Biology, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa
| | - Tess Gridley
- Statistics in Ecology, Environment and Conservation, Department of Statistical Sciences, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Lorien Pichegru
- Institute for Coastal and Marine Research, Nelson Mandela Metropolitan University, Port Elisabeth 6031, South Africa
| | - Nicolas Mathevon
- ENES Bioacoustics Research Team, University of Saint-Etienne, 42100 Saint-Etienne, France
- Institut Universitaire de France, Ministry of Higher Education, Research and Innovation, 1 rue Descartes, CEDEX 05, 75231 Paris, France
| | - David Reby
- ENES Bioacoustics Research Team, University of Saint-Etienne, 42100 Saint-Etienne, France
- Institut Universitaire de France, Ministry of Higher Education, Research and Innovation, 1 rue Descartes, CEDEX 05, 75231 Paris, France
| | - Livio Favaro
- Department of Life Sciences and Systems Biology, University of Turin, 10124 Turin, Italy
- CAPE Department, Stazione Zoologica Anton Dohrn, 80121 Naples, Italy
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Wang Y, Shi J, Wu Y, Zhang W, Yang X, Lv H, Xia S, Zhao S, Tian J, Cui P, Xu J. Selection of Flagship Species and Their Use as Umbrellas in Bird Conservation: A Case Study in Lishui, Zhejiang Province, China. Animals (Basel) 2023; 13:1825. [PMID: 37889725 PMCID: PMC10251992 DOI: 10.3390/ani13111825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/27/2023] [Accepted: 05/28/2023] [Indexed: 10/29/2023] Open
Abstract
The concept of flagship species is widely used in conservation biology. Flagship birds play a key role in raising conservation funds, increasing awareness of biodiversity conservation, and maintaining ecosystem services. This study selected flagship bird species in Lishui, Zhejiang Province, China, and assessed their conservation effectiveness and ability to serve as umbrella species. A regional bird survey program from 2019-2022 recorded 361 bird species in Lishui. This study constructed a framework of flagship species selection based on social, ecological, economic, and cultural criteria. The analytic hierarchy process-entropy weight method (AHP-EM) was used to rank the score of 361 bird species, and the MaxEnt model was used to analyze the suitable distribution areas of these species. Finally, 10 species, which covered the distribution sites of all 361 bird species, were selected as the flagship species of Lishui. The distribution areas covered all the nature reserves and the priority areas of biodiversity of Lishui, in which these 10 species can also serve as umbrella species to protect local biodiversity. The methodology and ideas in this study could provide insights into the application of conservation concepts at the local level, as well as suggest possible recommendations for local governments to select flagship species for conservation.
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Affiliation(s)
- Yifei Wang
- School of Ecology and Nature Conservation, Beijing Forestry University, 35 East Qinghua Road Haidian District, Beijing 100083, China;
| | - Jie Shi
- State Environmental Protection Key Laboratory on Biodiversity and Biosafety, Research Center for Biodiversity Conservation and Biosafety, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; (J.S.); (Y.W.); (W.Z.); (X.Y.); (S.Z.); (J.T.)
| | - Yi Wu
- State Environmental Protection Key Laboratory on Biodiversity and Biosafety, Research Center for Biodiversity Conservation and Biosafety, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; (J.S.); (Y.W.); (W.Z.); (X.Y.); (S.Z.); (J.T.)
| | - Wenwen Zhang
- State Environmental Protection Key Laboratory on Biodiversity and Biosafety, Research Center for Biodiversity Conservation and Biosafety, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; (J.S.); (Y.W.); (W.Z.); (X.Y.); (S.Z.); (J.T.)
| | - Xiao Yang
- State Environmental Protection Key Laboratory on Biodiversity and Biosafety, Research Center for Biodiversity Conservation and Biosafety, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; (J.S.); (Y.W.); (W.Z.); (X.Y.); (S.Z.); (J.T.)
| | - Huanxin Lv
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; (H.L.); (S.X.)
| | - Shaoxia Xia
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; (H.L.); (S.X.)
| | - Shengjun Zhao
- State Environmental Protection Key Laboratory on Biodiversity and Biosafety, Research Center for Biodiversity Conservation and Biosafety, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; (J.S.); (Y.W.); (W.Z.); (X.Y.); (S.Z.); (J.T.)
| | - Jing Tian
- State Environmental Protection Key Laboratory on Biodiversity and Biosafety, Research Center for Biodiversity Conservation and Biosafety, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; (J.S.); (Y.W.); (W.Z.); (X.Y.); (S.Z.); (J.T.)
| | - Peng Cui
- State Environmental Protection Key Laboratory on Biodiversity and Biosafety, Research Center for Biodiversity Conservation and Biosafety, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; (J.S.); (Y.W.); (W.Z.); (X.Y.); (S.Z.); (J.T.)
| | - Jiliang Xu
- School of Ecology and Nature Conservation, Beijing Forestry University, 35 East Qinghua Road Haidian District, Beijing 100083, China;
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Lundberg P, Arponen A. An overview of reviews of conservation flagships: evaluating fundraising ability and surrogate power. NC 2022. [DOI: 10.3897/natureconservation.49.81219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The main role of flagship species in biodiversity conservation is to raise awareness and funds for conservation. Because of their marketing role, flagship species are often selected based on other than biodiversity related criteria, such as species charisma or aesthetic appeal. Nonetheless, funds raised through flagship species are often used to protect the species itself, making it important to evaluate the effectiveness of flagship species as conservation tools: For example, could superior fundraising ability outweigh the low biodiversity surrogate power of a flagship, justifying this ambivalent role in conservation? To assess flagship effectiveness from this dual perspective, we must synthesize evidence on a) the fundraising potential of flagship species vs. other conservation targets, such as ecosystems or biodiversity, and b) the biodiversity surrogate power of potential flagship taxa. We approached this broad topic through an overview of reviews on both subtopics. We found no evidence that charismatic flagship species were superior fundraisers over other conservation targets. In addition, studies evaluating the biodiversity surrogacy power of different taxa had mainly resulted in mixed findings, contesting the overall usefulness of the concept in conservation. The variability of study setups and methods made comparisons between studies difficult, highlighting the need to standardize future research (e.g., standardizing explanatory variables). Further possible reasons for lack of conclusive evidence on fundraising potential are the dominance of factors other than flagship identity (e.g., scope and conservation status) and differences in donor preferences. We recommend Environmental NGOs to develop and diversify their fundraising strategies based on best available knowledge, and rely less on mere species charisma.
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