{"title":"From virtue to sin: Is the installation of bat boxes an effective conservation measure or a potential pitfall for vulnerable bat species?","authors":"Camilo Matus-Olivares , Jaime Carrasco , Andrés Weintraub , Fulgencio Lisón","doi":"10.1016/j.jnc.2024.126775","DOIUrl":"10.1016/j.jnc.2024.126775","url":null,"abstract":"<div><div>Bat boxes are a key element in bat conservation policies being very popular. However, it is a biased action that is only favourable for a few bat species. In this manuscript, we hypothesize that the installation of these elements and an extensive proliferation of them could threaten other bat species more vulnerable due to the niche competition. For this, we calculated the overlapping degree between the bat species that use bat boxes and those that do not, specifically: (1) To determine the favourability area of these bat species through habitat suitability models in Iberian Peninsula; (2) To compare the overlapping degree between both bat groups; (3) To elaborate optimal maps for the installation of bat boxes through optimization algorithm; and (4) To discuss the implications for the conservation of this action. Our results showed that the overlapping between bat boxes users and the other species is high (mean 76.3 %) and there are areas where a bat boxes not user species could compete with at least 9 bat boxes user species. Therefore, the installation of bat boxes could be counterproductive, and we should focus on other conservation actions. We used an optimization algorithm to find out those areas where it is not recommendable to install them and developed a flowchart to evaluate its installation in an area. In conclusion, our study highlights that conservation actions on some occasions could be negative or be a pitfall for themselves, and it is necessary to discuss the effectiveness of certain measures for bat conservation.</div></div>","PeriodicalId":54898,"journal":{"name":"Journal for Nature Conservation","volume":"83 ","pages":"Article 126775"},"PeriodicalIF":2.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gulzaman William , Zafeer Saqib , Nisha Naeem , Asim Kamran , Azeem Masih , Afia Rafique
{"title":"Predicting climate driven habitat shifts for the Egyptian vulture in Punjab, Pakistan","authors":"Gulzaman William , Zafeer Saqib , Nisha Naeem , Asim Kamran , Azeem Masih , Afia Rafique","doi":"10.1016/j.jnc.2024.126774","DOIUrl":"10.1016/j.jnc.2024.126774","url":null,"abstract":"<div><div>Climate change has significantly impacted habitat loss, affecting various threatened species, including the Egyptian vulture, which is experiencing a population and habitat decline in Pakistan. This study employs MaxEnt modeling to predict the current and future distribution of the Egyptian vulture across Punjab province, Pakistan, under three Shared Socio-economic Pathways (SSPs) SSP126, SSP370, and SSP585 for the years 2040, 2070, and 2100. We used 67 occurrence records and seven environmental variables to model the vulture’s distribution. The MaxEnt model exhibited good predictive performance with an AUC value of 0.837, identifying a current suitable habitat area of 122,124.16 km2. Among the environmental factors analyzed, precipitation seasonality (Bio15), mean temperature of the warmest quarter (Bio10), and precipitation of the wettest month (Bio13) emerged as the most influential variables, contributing 39.8 %, 18 %, and 8.8 %, respectively. The model predicts a substantial shift in suitable habitats under various climate scenarios, with an overall increase of 69 % in suitable habitat by 2100 under the SSP 370–2100 scenario. Significant habitat expansions are expected across central and southern Punjab, while reductions are anticipated in the northern and western regions, with significant changes in surface coverage. Furthermore, the conservation gap analysis reveals that although 2,451.63 km2 of highly suitable and 1,648.91 km2 of very highly suitable habitat exist within protected areas, more than 90 % of these habitats remain unprotected, highlighting a critical conservation gap that threatens the species’ long term survival. The insights derived from this study are critical for informing conservation efforts and habitat management practices, offering a foundational reference for the protection of the Egyptian vulture and similar species in the face of ongoing climate change.</div></div>","PeriodicalId":54898,"journal":{"name":"Journal for Nature Conservation","volume":"83 ","pages":"Article 126774"},"PeriodicalIF":2.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Paying for green tide management or participating in cleanup activities? Testing and controlling for payment vehicle bias in the valuation of ecological damage caused by green tides","authors":"Jingmei Li , Yani Zhang , Jingzhu Shan","doi":"10.1016/j.jnc.2024.126772","DOIUrl":"10.1016/j.jnc.2024.126772","url":null,"abstract":"<div><div>Payment vehicle bias is one of the biases in the contingent valuation method (CVM). This research uses the ecological damage assessment of the <em>Ulva prolifera</em> green tides in Jiaozhou Bay, Qingdao, China, as a case study to examine the factors influencing the payment vehicle bias and control for it. The results indicate that nearly 50 % of respondents might refuse to pay because monetary or labor payment vehicles do not meet their payment preferences. This situation leads to nonrandom sample selection and payment vehicle bias. To address these issues, this research proposes a novel valuation framework that combines monetary and labor payment vehicles. And the Heckman two-stage model is used to estimate the economic value of labor time and combines sample data from both monetary and labor payment vehicles to control for bias and obtain a more reliable valuation result. The results show that, compared with sole reliance on monetary payment vehicles, the use of dual payment vehicles increases the observable sample size from 222 to 330. Furthermore, respondents’ average WTP for green tide management increases from 101 CNY/person·year to 116 CNY/person·year. Therefore, employing both payment vehicles simultaneously can reveal more respondents’ true preferences, reduce non-randomness in sample selection and mitigate payment vehicle bias. The findings of this study can demonstrate the value of labor payment vehicles in CVM applications and provide a scientific basis for the Qingdao municipal government to establish more effective strategies for green tide management.</div></div>","PeriodicalId":54898,"journal":{"name":"Journal for Nature Conservation","volume":"83 ","pages":"Article 126772"},"PeriodicalIF":2.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Konstantinos Papakostas , Haritakis Papaioannou , Marco Apollonio , Vassiliki Kati
{"title":"Seasonal distribution pattern and habitat selection of the Balkan chamois on Olympus mountain: Summer heat, hikers, roads","authors":"Konstantinos Papakostas , Haritakis Papaioannou , Marco Apollonio , Vassiliki Kati","doi":"10.1016/j.jnc.2024.126773","DOIUrl":"10.1016/j.jnc.2024.126773","url":null,"abstract":"<div><div>The Balkan chamois (<em>Rupicapra rupicapra balcanica</em>) has a bad conservation status in Greece, and a national action plan will be implemented by the Ministry of Environment. We explored the seasonal distribution pattern and ecological preferences of the species on Mt. Olympus by collecting 1,182 observations of chamois occurrences across four seasonal surveys (2022–2023), and we estimated its population size (2022). The annual range of the species reached 103 km<sup>2</sup> (Kernel Density Estimator). We recorded the smallest seasonal range during autumn (rutting season), then in summer, and the largest in winter. The species followed the Mediterranean seasonal range use pattern, implying that summer is the stress period due to drought. The population size was c. 430 individuals, showing an increasing trend, but the fecundity rate was low in 2022. The Ecological Niche Factor Analysis (ENFA) showed that chamois preferred areas near hiking trails throughout the year, likely being habituated with visitors, while avoiding motorized roads, as adopted behaviors of poaching risk minimization. It also favored rocky areas and proximity to escape terrains during spring and winter. This work provides new methodological insights for habitat mapping and escape terrain definition (slope steepness and extent) and supports the suggested measures of the national action plan for implementing a roadless and road control policy, securing water availability in arid mountains, implementing a management plan for tourists, abating poaching and enlarging the hunting banning zone.</div></div>","PeriodicalId":54898,"journal":{"name":"Journal for Nature Conservation","volume":"83 ","pages":"Article 126773"},"PeriodicalIF":2.2,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yong-liang Zhu , Meng-ling Xu , Li-xiang Zhang , Peng Li , Bao Jin , An-ru Zuo , Xue-long Jiang , Zhen-hua Guan
{"title":"Prediction of the potential dispersal corridors for Gaoligong hoolock gibbon in northern Yingjiang, Yunnan, China","authors":"Yong-liang Zhu , Meng-ling Xu , Li-xiang Zhang , Peng Li , Bao Jin , An-ru Zuo , Xue-long Jiang , Zhen-hua Guan","doi":"10.1016/j.jnc.2024.126771","DOIUrl":"10.1016/j.jnc.2024.126771","url":null,"abstract":"<div><div>Ecological corridors are crucial for wildlife survival and development, providing niches, shelter, food, and protection that enable species to thrive and migrate. This study addresses the vulnerable status of the Gaoligong hoolock gibbon (<em>Hoolock tianxing</em>) population in China, which has undergone a significant decline due to habitat loss and fragmentation, resulting in 15 isolated subpopulations. To conserve the <em>H. tianxing</em> population through habitat restoration and corridor development, we conducted a detailed analysis of habitat patches occupied by 20 <em>H. tianxing</em> groups in northern Yingjiang, Yunnan. We applied a least-cost path model, enhanced by various modeling techniques, to identify potential corridors. Our findings show that integrating the Linkage Mapper Toolbox with the MaxEnt model significantly improves the accuracy of corridor identification. This approach identified 26 potential dispersal corridors crucial for maintaining connectivity among <em>H. tianxing</em> populations. Furthermore, we employed a circuit theory model to identify key pinch points facilitating <em>H. tianxing</em> dispersal and to locate barriers hindering their movement. We found that barriers to gibbon dispersal were primarily concentrated in the Lamahe area, especially near existing roads. Consequently, constructing corridors in this area is crucial for the effective conservation of <em>H. tianxing</em>. This study provides both a blueprint for <em><u>H. tianxing</u></em> conservation strategies in northern Yingjiang and identifies key protection areas, establishing a comprehensive framework for corridor construction. The insights gained from this research significantly enhance our understanding of conservation strategies and management practices specifically tailored to the ecological needs of <em>H. tianxing</em> populations.</div></div>","PeriodicalId":54898,"journal":{"name":"Journal for Nature Conservation","volume":"83 ","pages":"Article 126771"},"PeriodicalIF":2.2,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Milan Danilović , Martin Weinländer , Diana Marguč , Zsombor Bányai , Weiperth András , Leopold Füreder , Ivana Maguire
{"title":"Riverscape analysis and habitat suitability modeling for conservation management of native crayfish species – A case study from Croatia, Slovenia and Hungary","authors":"Milan Danilović , Martin Weinländer , Diana Marguč , Zsombor Bányai , Weiperth András , Leopold Füreder , Ivana Maguire","doi":"10.1016/j.jnc.2024.126770","DOIUrl":"10.1016/j.jnc.2024.126770","url":null,"abstract":"<div><div>Indigenous crayfish species (ICS) have suffered a significant decline in recent decades due to various threats including anthropogenic habitat degradation with resulting fragmentation, and the introduction of non-indigenous crayfish species (NICS). However, only a few studies have assessed and quantified these threats on a broad landscape scale. We aim to highlight the impact of these interacting pressures within the Sava and Drava basins in Slovenia, Croatia, and Hungary.</div><div>Our aims were to (1) asses the fragmentation caused by artificial and natural barriers; (2) calculate a threat index using fragmentation, spatial distances to established NICS populations, urban settlements and roads; (3) conduct current habitat suitability modeling (HSM) using various biotic and abiotic environmental parameters. The target species in this area are the ICS <em>Astacus astacus</em>, <em>Austropotamobius torrentium</em> and <em>Pontastacus leptodactylus</em> as well as the invasive NICS <em>Pacifastacus leniusculus</em> and <em>Faxonius limosus</em>. Our analyses revealed that the Croatian and Hungarian segments of the Drava and Sava basins exhibit relatively low fragmentation levels, whereas the Slovenian basins are highly fragmented mainly due to a dense hydropower network. All ICS populations within each sub-basin in the study area are moderately to highly threatened according to our threat index calculation. The HSM showed, that only 14.1% and 11.6% of freshwater habitats are suitable for <em>A. torrentium</em> and <em>A. astacus</em>, respectively. In contrast, NICS could occupy substantial portions (up to 22%) of the total riverscape. The results affirmed the highly alarming situation, as native crayfish were once widely distributed across less unfragmented freshwaters of the Danube basin. Our analyses and findings will be helpful to enhance the existing frameworks for safeguarding the remaining ICS populations, predicting the possible spread of NICS, and help to improve sustainable management practices for freshwater ecosystems.</div></div>","PeriodicalId":54898,"journal":{"name":"Journal for Nature Conservation","volume":"83 ","pages":"Article 126770"},"PeriodicalIF":2.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Top priority crop wild relatives exhibit different resilience responses to climate change in Benin (West Africa)","authors":"Rodrigue Idohou , Romaric Odoulami , Thierry Houehanou , Achille Assogbadjo","doi":"10.1016/j.jnc.2024.126769","DOIUrl":"10.1016/j.jnc.2024.126769","url":null,"abstract":"<div><div>Climate change exacerbates biodiversity loss and contributes to disrupting ecosystem functioning, diminishing ecosystem services, and further endangering vulnerable populations of species. This study explores how different climate scenarios may impede the probable resilience of top-priority crop wild relatives in Benin. Records of the species were combined with climate and soil layers, in a maximum entropy modeling algorithm. For the future models, two shared socio-economic trajectories were considered: Shared Socioeconomic Pathway SSP2-4.5 and Shared Socioeconomic Pathway SSP5-8.5 from the CMPI6 scenarios for the period 2040–2070. Niche dynamics as well as similarity of the niches were assessed for all species for the proposition of sustainable conservation strategies. Results showed that all models yielded very good performance, as revealed by the AUC and TSS values. For most species, much of the distribution will remain stable across time, though some expansion or retraction will be observed in some cases. Most of the pairs of species display low similarity in the suitable areas for conservation. However, a higher similarity of the background was observed among some groups including <em>Ipomoea</em> and <em>Dioscorea</em> species. Further development of these models could help to get a complete view of the distribution of the species and set long-term conservation strategies for this group.</div></div>","PeriodicalId":54898,"journal":{"name":"Journal for Nature Conservation","volume":"83 ","pages":"Article 126769"},"PeriodicalIF":2.2,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Meeting crop production and restoration efforts: A case study with achiote trees as corridors","authors":"Marina Mazón , Oscar Romero","doi":"10.1016/j.jnc.2024.126765","DOIUrl":"10.1016/j.jnc.2024.126765","url":null,"abstract":"<div><div>Productive restoration is intended to guarantee crop production whilst helping to conserve biodiversity and other ecosystem services, but the recovery of these ecosystem components and functions needs to be monitored. We used Darwin wasps (Hymenoptera: Ichneumonidae) to evaluate if an agroforestry system based on achiote trees (<em>Bixa orellana</em> L.) might help to conserve biodiversity by connecting areas under ecological restoration and forest remnants. We compared Darwin wasp diversity, abundance, richness, and composition in three ecosystem types: achiote orchards, areas under approximately 10 years of ecological restoration, and secondary forests, in southern Amazon of Ecuador. Insects were collected by means of Malaise trap, with three replicates for every ecosystem type. Diversity indices showed no significant differences among the three ecosystem types, but Ichneumonidae abundance and species richness did, and assemblages were significantly different among them. Of the 239 morphospecies collected, 11 were occurring in the three ecosystems. Monospecific agroforestry plantations, such as the achiote farms studied here, can be useful to help with recovery of ecosystem services and biodiversity when land is severely degraded, if they are managed with organic practices and they are close to the forests, but might not act as effective corridors for Darwin wasps.</div></div>","PeriodicalId":54898,"journal":{"name":"Journal for Nature Conservation","volume":"83 ","pages":"Article 126765"},"PeriodicalIF":2.2,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anthony R. Rendall , Emma Carlos , Maria Gibson , Michael A. Weston
{"title":"Small-scale removal of an emergent coastal weed does not affect space use of a territorial bird which uses those weeds","authors":"Anthony R. Rendall , Emma Carlos , Maria Gibson , Michael A. Weston","doi":"10.1016/j.jnc.2024.126767","DOIUrl":"10.1016/j.jnc.2024.126767","url":null,"abstract":"<div><div>Management of impactful, non-native vegetation – commonly referred to as weeds – is an important component of coastal management, yet information on how their management might affect coastal fauna is limited. A common focus of existing studies is the assessment of species richness or activity before and after weed removal while direct experimental assessments of individual activity ranges are rare. We individually marked singing honeyeaters (<em>Gavicalis virescens</em>) throughout Cheetham Wetlands, Victoria, Australia, where African boxthorn (<em>Lycium ferocissimum</em>) invasion was extensive, often represented the tallest vegetation structure within coastal saltmarsh/grassland and was used extensively by singing honeyeaters. Individual birds were repeatedly located to establish range sizes before and after removal of boxthorn. Four sites were considered ‘impact’ sites, where two boxthorn plants (6.7–33.3 % of plants present) were removed, cut down and branches left in situ to retain some habitat structure. Two sites represented controls, where no boxthorn removal occurred. Honeyeater activity range size did not change in response to weed removal, and range overlap pre- and post-removal was high (80 ± 23 %, <span><math><mrow><mover><mrow><mi>μ</mi></mrow><mrow><mo>¯</mo></mrow></mover></mrow></math></span>± SD) – although variation of range size at the individual-level was high. Boxthorn represented the most frequently used perch type both before and after removal, as dead boxthorn was also used for perching. Our results suggest the small-scale, selective, weed management that seeks to retain vegetation structure has negligible immediate impacts on singing honeyeaters inhabiting coastal areas.</div></div>","PeriodicalId":54898,"journal":{"name":"Journal for Nature Conservation","volume":"83 ","pages":"Article 126767"},"PeriodicalIF":2.2,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}