Tropical Conservation Science最新文献

筛选
英文 中文
Indigenous Lands are Better for Amphibian Biodiversity Conservation Than Immigrant-Managed Agricultural Lands: A Case Study From Manu Biosphere Reserve, Peru 土著土地比移民管理的农业土地更有利于两栖动物的生物多样性保护:来自秘鲁马努生物圈保护区的案例研究
IF 1.7 4区 环境科学与生态学
Tropical Conservation Science Pub Date : 2022-01-01 DOI: 10.1177/19400829221134811
S. J. Serrano-Rojas, A. Whitworth, Julio A. Paredes-Garcia, Ruthmery Pillco-Huarcaya, L. Whittaker, Karl H. Huaypar-Loayza, R. Macleod
{"title":"Indigenous Lands are Better for Amphibian Biodiversity Conservation Than Immigrant-Managed Agricultural Lands: A Case Study From Manu Biosphere Reserve, Peru","authors":"S. J. Serrano-Rojas, A. Whitworth, Julio A. Paredes-Garcia, Ruthmery Pillco-Huarcaya, L. Whittaker, Karl H. Huaypar-Loayza, R. Macleod","doi":"10.1177/19400829221134811","DOIUrl":"https://doi.org/10.1177/19400829221134811","url":null,"abstract":"The efficacy of protected areas is tied to the management of surrounding areas. Still, the importance of buffer zones for biodiversity conservation is overlooked. Manu Biosphere Reserve is one of the most biodiverse places on earth, yet destructive land-use practices are degrading the ecological integrity of its buffer zone. To better understand the importance of different land-uses within Manu’s buffer zone for biodiversity conservation, we assessed amphibian communities across a land-use gradient in the buffer zone (immigrant agricultural land, forests used by three Indigenous communities, and a regenerating forest), in addition to a reference site in its core protected area. We surveyed six sites and sampled amphibian communities using visual encounter surveys and leaf litter searches over dry and wet seasons. Overall, in 2249 ha surveyed of the buffer zone, we recorded 70 amphibian species (57% of the 124 species recorded in the Manu Biosphere Reserve from the same elevational range within our study). Species richness, evenness, and diversity of amphibians decreased with habitat degradation and were lowest in the agricultural land. Conversely, the richness and diversity of amphibians in the regenerating forest and the Indigenous communities’ forests were similar to that of the core protected area, and each had a relatively unique community composition, whereas the agricultural land was dominated by generalist species. Our results suggest that increasing degradation through expanding agriculture traditionally adopted by immigrant communities could significantly threaten biodiversity within the buffer zone. However, our findings also underscore the high potential of buffer zones managed by Indigenous communities for biodiversity conservation. A combination of sustainable livelihood activities, cultural practices, and forest protection, as observed in many Indigenous communities, is critical to fulfilling the role of a Biosphere Reserve—to reconcile the conservation of biological and cultural diversity while improving social and economic development.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42976837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 2
Multi-Dimensional Social Capital and Farmer’s Willingness to Participate in Environmental Governance 多维社会资本与农民环境治理参与意愿
IF 1.7 4区 环境科学与生态学
Tropical Conservation Science Pub Date : 2022-01-01 DOI: 10.1177/19400829221084562
Yuxin Wang, Wenjing Qu, Lan Zheng, Mei Yao
{"title":"Multi-Dimensional Social Capital and Farmer’s Willingness to Participate in Environmental Governance","authors":"Yuxin Wang, Wenjing Qu, Lan Zheng, Mei Yao","doi":"10.1177/19400829221084562","DOIUrl":"https://doi.org/10.1177/19400829221084562","url":null,"abstract":"Background The construction and development of formal institutions has been lagging behind in rural areas of China for decades, so the role of social capital is particularly important. In the context of China’s implementation of the rural revitalization strategy, considering the impact of social capital on farmers’ willingness to participate in environmental governance is profitable to the improvement of rural human settlement environment and the increase in the implementation efficiency of relevant policies. Methods Based on the micro-data of villages in Anhui Province, this paper uses the logit model to explore the effects of social capital of trust, network, and norm on farmers’ willingness to participate in environmental governance. Results The results show that both network social capital and norm social capital have a significant effect on farmers’ willingness to participate in environmental governance, and the marginal effect of network social capital is greater than that of norm social capital. After controlling both social network and social norm, however, the effect of social trust is not evident. With the improvement in farmers’ schooling level and income level, the impact of social network and social norms on farmers’ willingness to participate become gradually insignificant, and social capital appears to be “the capital of the poor.” Conclusion Given the above results, we can improve the willingness of farmers to participate in the village environmental governance and lay a solid foundation for the improvement of rural human settlement environment by cultivating village trust, broadening social network, and creating a social custom of mutual benefit. Implications for Conservation Effective environmental governance is an important measure to achieve sustainable development goals. Farmers’ willingness to participate in environmental governance plays a significant role in improving the effectiveness of rural environmental governance. Accordingly, the study of how social capital affects farmers’ willingness to participate provides not only valuable enlightenment for rural environmental governance and protection, but also a long path for sustainable development and biodiversity protection.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45556092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 3
Spatiotemporal Coexistence of Mesopredators and Their Prey in a Defaunated Neotropical Rainforest 退化热带雨林中捕食者及其猎物的时空共存
IF 1.7 4区 环境科学与生态学
Tropical Conservation Science Pub Date : 2022-01-01 DOI: 10.1177/19400829221084261
J. J. Flores-Martínez, R. Coates, V. Sánchez‐Cordero, Jesús Alejandro Ríos-Solís, B. Luna-Olivera, Marcelino Ramírez-Ibáñez, M. Lavariega
{"title":"Spatiotemporal Coexistence of Mesopredators and Their Prey in a Defaunated Neotropical Rainforest","authors":"J. J. Flores-Martínez, R. Coates, V. Sánchez‐Cordero, Jesús Alejandro Ríos-Solís, B. Luna-Olivera, Marcelino Ramírez-Ibáñez, M. Lavariega","doi":"10.1177/19400829221084261","DOIUrl":"https://doi.org/10.1177/19400829221084261","url":null,"abstract":"Background and Research Aims Forest loss and fragmentation have a negative impact on large-sized predators and prey, whose populations are reduced or extirpated locally. We explored the spatiotemporal coexistence of the mesopredators (< 15 kg) coyote, ocelot, and white-nosed coati, with their potential prey (< 15 kg) Mexican agouti, lowland paca, and collared peccary in a defaunated rainforest. Methods We used two-species occupancy-detection models between mesopredators and their potential prey, overlap index of circular models, and latency time measurements to evaluate temporal and spatial segregation and habitat use of species. Results Presence of ocelot and coyote was influenced by an increase in the detectability and occupancy of the Mexican agouti. Among most mesopredator–prey species pairs, the correlation for both the capture rates at camera-trap stations and the 1-hr intervals were mainly moderate or low. Some mesopredator–prey species pairs showed low or inverse correlations suggesting species avoidance. The Mexican agouti exhibited a significant negative correlation with the presence of mesopredators. The coyote and ocelot showed a positive correlation with their use of low use trails by people. Conclusions Spatiotemporal tolerance was observed among mesopredator omnivores and prey herbivores. High temporal overlap of ocelots and potential prey (lowland paca) was observed compared to other tropical forests holding large-sized predators, suggesting behavioral shifts for increasing mesopredator–prey encounters. Furthermore, mesopredator coexistence was mediated by a displacement in the temporal peaks of activity and spatial segregation among species. Implications for Conservation Defaunated tropical forests need protection to ensure the conservation of remaining species and their ecological interactions.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48512895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Changes in Ecosystem Service Values in Response to the Planting of Eucalyptus and Acacia Species in the Gilgel Abay Watershed, Northwest Ethiopia 埃塞俄比亚西北部Gilgel Abay流域桉树和金合欢种植对生态系统服务价值的影响
IF 1.7 4区 环境科学与生态学
Tropical Conservation Science Pub Date : 2022-01-01 DOI: 10.1177/19400829221108928
Ermias Debie, Mesfin Anteneh
{"title":"Changes in Ecosystem Service Values in Response to the Planting of Eucalyptus and Acacia Species in the Gilgel Abay Watershed, Northwest Ethiopia","authors":"Ermias Debie, Mesfin Anteneh","doi":"10.1177/19400829221108928","DOIUrl":"https://doi.org/10.1177/19400829221108928","url":null,"abstract":"Plantation of Eucalyptus and Acacia species emerges as a promising alternative in the tropics in a scenario of high demand for provisional and regulating ecosystem services. The research aimed to characterize the spatiotemporal dynamics of ecosystem service values in response to planting practices of Eucalyptus and Acacia species in the Gilgel Abay watershed, Northwest Ethiopia. The threshold values of NDVI were employed to classify land-use/covers using cloud-free satellite imagery data in 1984, 1998, 2013, and 2021. The benefit transfer method of modified value coefficient was used to estimate ecosystem service values (ESVs) of the study watershed. Total ESV decreased from 1984 to 1998 due to the expansion of cultivated land at the expense of natural forests, shrubs, and grasslands. As food production increased, performance levels of climate regulation, erosion control, and nutrient cycle declined. In contrast, the service values of erosion control, climate regulation, and nutrient cycles were the major contributors to the overall increase in ESV from 1998 to 2021. This was caused by expanding Acacia and Eucalyptus species plantation at the expense of cultivated land in the watershed. The research revealed a trade-off relationship between provisional and other ecosystem services, such as regulating and supporting ecosystem service values in response to land-use system transformation. As a result, it is suggested that synergistic interactions between regulating, provisional, and supporting ecosystem service values be developed by merging plantation and cultivated land. Maintaining the right proportions of degraded plantations, protected natural forests, farmlands, and wetland ecosystems can be the most effective way to provide optimal multiple ecosystem services.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42381573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 3
Rapid land use conversion in the Cerrado has affected water transparency in a hotspot of ecotourism, Bonito, Brazil 塞拉多的土地利用快速转换影响了巴西博尼托生态旅游热点地区的水透明度
IF 1.7 4区 环境科学与生态学
Tropical Conservation Science Pub Date : 2022-01-01 DOI: 10.1177/19400829221127087
R. Chiaravalloti, W. Tomas, Alexandre Uezu, H. Shirai, E. Guaraldo, C. Aoki, Maria Tereza de Arruda Botelho, Juliane Ferreira Salvadori
{"title":"Rapid land use conversion in the Cerrado has affected water transparency in a hotspot of ecotourism, Bonito, Brazil","authors":"R. Chiaravalloti, W. Tomas, Alexandre Uezu, H. Shirai, E. Guaraldo, C. Aoki, Maria Tereza de Arruda Botelho, Juliane Ferreira Salvadori","doi":"10.1177/19400829221127087","DOIUrl":"https://doi.org/10.1177/19400829221127087","url":null,"abstract":"Background Brazil is the largest exporter of soybeans worldwide. Albeit its economic importance, soybean expansion has led to important land use and land cover changes. In this paper, we evaluate the impact of soybean expansion on ecotourism, using as a case study of the Prata River (Bonito), Brazil; tourist destination where over 30,000 tourists per year came to float in crystal waters. Methods We first evaluated land cover and land use change in the region between 2010 and 2020, checking how and where soybean plantations have expanded. Second, based on monthly data of water transparency of the Prata River, Bonito, we created five possible models considering monthly rainfall and three categories of soybean expansion (slow, rapid and medium). The models were tested through generalized linear regression analysis and ranked through AIC and AIC weight. Results Our results show that soybean expanded from occupying 4% of the river basin in 2010 to 23% in 2020, expanding mostly over pasture areas (31%) and native vegetation (12.9%). We also showed that while soybean plantation was expanding rapid between 2014 and 2016, it played a significant role in increasing the number of days the water in the Prata River was classified as very turbid. Conclusion Our results emphasize the need for soybean expansion planning, considering better management of the soil (non-tilling), common agreements between different stakeholders and the scale up of initiatives that are already in place in the region (e.g. planning of the locations of legal reserves in a way that complement the environmental protection areas (e.g. Águas de Bonito), seting aside of conservation areas (\"Área Prioritária Banhados\") and payment for ecosystem service schemes) . Implications for conservation Our research shows the importance of considering the different impacts soybean may have on the landscape. We present clear paths to reduce possible economic and environmental impacts, and present the importance to scale up innitiatives that are already in place in the region, such as payment for ecosystem services schemes and protection of watersheds.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48478515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Corrigendum to Not Just an Issue in Forested Regions: Investigating the Consumption and Trade of Pangolins in a Forest-Savannah Mosaic Area of Cameroon 不只是森林地区的一个问题:调查喀麦隆森林-萨凡纳马赛克地区穿山甲的消费和贸易
IF 1.7 4区 环境科学与生态学
Tropical Conservation Science Pub Date : 2022-01-01 DOI: 10.1177/19400829221114845
Alain D. T. Mouafo, Daniel J. Ingram, Valery A. Binda, Itoe Constantine N. Ngwayi, T. Mayaka
{"title":"Corrigendum to Not Just an Issue in Forested Regions: Investigating the Consumption and Trade of Pangolins in a Forest-Savannah Mosaic Area of Cameroon","authors":"Alain D. T. Mouafo, Daniel J. Ingram, Valery A. Binda, Itoe Constantine N. Ngwayi, T. Mayaka","doi":"10.1177/19400829221114845","DOIUrl":"https://doi.org/10.1177/19400829221114845","url":null,"abstract":"Cameroon hosts three species of pangolins and has recently been identified as a hub of pangolin trafficking. However, information on threats to pangolins needed to guide conservation efforts remains scarce, notably on consumption and trade patterns, and the prevalence of individuals trading pangolins. Local communities sharing the same habitats with pangolins can provide such information, which is useful to better target interventions. Based on a snowball sampling approach and using interview surveys in 20 villages surrounding Mbam et Djerem National Park, we investigated the consumption of pangolins and its drivers, parts sold, selling prices, places sold and buyers, and employed the nominative technique to estimate the percentage of people within the surveyed population engaged in selling pangolins. Our results showed that both giant and white-bellied pangolins are locally consumed, mainly for their taste, and traded for meat and scales. Distance to the capital city Yaoundé, ethnolinguistic group, and education significantly affected the likelihood of consuming or trading white-bellied and giant pangolins. Selling and prices of giant pangolin meat and scales were significantly affected by distance to Yaoundé. The prevalence of people selling white-bellied and giant pangolins were higher in Tibati and Yoko compared to other municipalities. Overall, our study provided information necessary for effective law enforcement and research-oriented decision-making for pangolin conservation. We recommend the establishment of consumption reduction campaigns focusing on taste preference, investigation of the impacts of the newly constructed national road on pangolin supply chains and trafficking, and increasing the involvement of local communities in the management process of Mbam et Djerem National Park.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46471056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 1
Presence And Temporal Activities Of Serrated Hinged Terrapin (Pelusios sinuatus) And Marsh Terrapin (Pelomedusa galeata) In KwaZulu-Natal, South Africa, Assessed Using Telemetry 使用遥测技术评估南非夸祖鲁-纳塔尔岛锯齿状铰链Terrapin(Pelusios sinatus)和沼泽Terrapin(佩洛美杜莎galeta)的存在和时间活动
IF 1.7 4区 环境科学与生态学
Tropical Conservation Science Pub Date : 2022-01-01 DOI: 10.1177/19400829221074241
Cormac Price, M. Burnett, G. O’Brien, C. Downs
{"title":"Presence And Temporal Activities Of Serrated Hinged Terrapin (Pelusios sinuatus) And Marsh Terrapin (Pelomedusa galeata) In KwaZulu-Natal, South Africa, Assessed Using Telemetry","authors":"Cormac Price, M. Burnett, G. O’Brien, C. Downs","doi":"10.1177/19400829221074241","DOIUrl":"https://doi.org/10.1177/19400829221074241","url":null,"abstract":"Background and Aims For the first time in Africa, two freshwater turtle species (hereafter terrapin) presence and temporal activity in their habitats were investigated using radio telemetry. Methods Telemeter tags were attached to Pelusios sinuatus (n = 10) at Ndumo Reserve and Pelomedusa galeata (n = 10) at Tala Reserve. Pelusios sinuatus tagged individuals were monitored between August–December 2016 at Ndumo, while P. galeata individuals were monitored between November 2017–July 2018 at Tala. Sensors on the tag determined the tag temperature and temporal activity. We examined both species' frequency distributions of inactivity to time of day. Activity trends for both species in comparison with ambient temperature and tag temperature were analyzed. Results Tags showed individuals presence or absence as detected by fixed remote networks at the study sites. Tagged P. sinuatus in Ndumo disappeared after a flood without returning after the flood receded. Both species were diurnal, with P. galeata showing a greater ability to maintain tag temperature above ambient temperature in the first 10 h of a day than P. sinuatus. Climatic data, including ambient temperature, rainfall, and wind, were retrieved from weather stations. The most significant climatic variable that affected activity was ambient temperature. Rainfall also showed a significant effect, but wind showed no significant effect. Implications for Conservation This method can become a valuable tool for long-term remote monitoring of other semi-aquatic reptiles in wetlands that are increasingly under anthropogenic and climatic pressure. Thus, its implications for conservation are significant.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45553515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 1
Do Buffer Zone Programs Improve Local Livelihoods and Support Biodiversity Conservation? The Case of Sagarmatha National Park, Nepal 缓冲区项目是否改善了当地的生计并支持生物多样性保护?尼泊尔萨加玛塔国家公园案例
IF 1.7 4区 环境科学与生态学
Tropical Conservation Science Pub Date : 2022-01-01 DOI: 10.1177/19400829221106670
Thakur Silwal, B. Devkota, P. Poudel, M. Morgan
{"title":"Do Buffer Zone Programs Improve Local Livelihoods and Support Biodiversity Conservation? The Case of Sagarmatha National Park, Nepal","authors":"Thakur Silwal, B. Devkota, P. Poudel, M. Morgan","doi":"10.1177/19400829221106670","DOIUrl":"https://doi.org/10.1177/19400829221106670","url":null,"abstract":"Background and Research Aims: Buffer zone programs aim to reduce park-people conflicts by improving local livelihoods through integrated conservation and development activities. A case study was conducted at Sagarmatha National Park, Nepal from 2002–2016 to examine some buffer zone initiatives. Methods: Focus group discussions (n = 7), key informant interviews (n = 14), and field observations were performed in accordance with the IUCN Framework for Assessing Management Effectiveness of Protected Areas 2006 and WWF´s Rapid Assessment and Prioritization of Protected Area Management 2006. Results: A total of 99 buffer zone activities were identified, including a variety of construction activities such as hydroelectric projects, trails, schools, and monasteries. Park funds were allocated mainly for community development and social welfare (42%), and less on conservation and conflict management (22%). For example, traditional “Nawa” animal rearing practices, feral dog control, and mitigation of wildlife damages to crops and livestock were overlooked. Conclusion: Support gained from the buffer zone program to address livelihoods of needy households who suffer from wildlife damages was lacking, despite legal provisions for compensation (e.g. crop damages caused by jharal). This should not occur at the expense of wildlife conservation and if it does, it will diminish the original intent of buffer zones. Implications for Conservation: Although most of the local communities were positive about buffer zone programs and activities, there was a dire need to incorporate “Nawa” practices, wildlife damage compensation schemes, and feral dog controls. This study suggests to update policies that focus on conflict management.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46682755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 1
Effects of Ultraviolet Exposure on the Tropical Fungi Aspergillus carbonarius and Aspergillus japonicus: Survival, Amylase Production, and Thermostability 紫外线照射对热带真菌碳曲霉和日本曲霉的影响:存活、淀粉酶产生和热稳定性
IF 1.7 4区 环境科学与生态学
Tropical Conservation Science Pub Date : 2022-01-01 DOI: 10.1177/19400829221092638
T. Pasin, Eliano A. Moreira, Vivian Machado Benassi, Paula V. D. Spencer, N. T. Peres, Mariana Cereia, M. Polizeli
{"title":"Effects of Ultraviolet Exposure on the Tropical Fungi Aspergillus carbonarius and Aspergillus japonicus: Survival, Amylase Production, and Thermostability","authors":"T. Pasin, Eliano A. Moreira, Vivian Machado Benassi, Paula V. D. Spencer, N. T. Peres, Mariana Cereia, M. Polizeli","doi":"10.1177/19400829221092638","DOIUrl":"https://doi.org/10.1177/19400829221092638","url":null,"abstract":"Background and Research Aims Although fundamental to tropical forest biodiversity, fungi have been largely neglected in conservation research. To examine the fungal response to increased ultraviolet C (UVC) radiation, we analyzed UVC radiation effects on the survival, growth, and amylase activity of Aspergillus carbonarius and Aspergillus japonicus. Methods A. carbonarius (strain URM 7305) and A. japonicus (URM 7270) were exposed to UVC (254 nm) for different periods, and morphological changes were compared to the control. Results Survival capacity and growth decreased after 10 min of exposure in A. carbonarius and after 25 min in A. japonicus. After 40 min, amylase activity decreased (A. carbonarius: 35.8%; A. japonicus: 30.3%). Amylase thermostability at 60°C was lower in UVC-exposed strains (T50 15 min) compared to controls (A. japonicus, 45 min; A. carbonarius, 30 min). However, the protein amount remained stable in all UVC-treated strains. Contamination by other fungi was observed in the UVC-exposed strains, confirming competitive strength loss in both species. This was not observed in the controls due to secondary metabolite production, which increased their competitive fitness. Conclusion We provide new information about UVC’s adverse effects on the survival and enzyme production of A. carbonarius and A. japonicus, which could mean a loss of species essential for proper soil functioning and biodiversity. Implications for conservation Experimental manipulation of biochemical and physiological reactions advances fungal conservation beyond distributional data. The experimental evidence supports previous studies, suggesting that the increased UV radiation caused by climate change may drastically affect fungal biochemistry and physiology.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41777202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 2
Live Fences as Refuges of Wild and Useful Plant Diversity: Their Drivers and Structure in Five Elevation Contrast Sites of Veracruz, Mexico 墨西哥韦拉克鲁斯州5个高程对比区野生和有用植物多样性保护区的活动围栏及其驱动因素和结构
IF 1.7 4区 环境科学与生态学
Tropical Conservation Science Pub Date : 2022-01-01 DOI: 10.1177/19400829221078489
Gregoria Zamora Pedraza, Sergio Avendaño‐Reyes, R. Coates, Jorge Antonio Gómez Díaz, M. Lascurain, G. García‐Guzmán, J. C. López-Acosta
{"title":"Live Fences as Refuges of Wild and Useful Plant Diversity: Their Drivers and Structure in Five Elevation Contrast Sites of Veracruz, Mexico","authors":"Gregoria Zamora Pedraza, Sergio Avendaño‐Reyes, R. Coates, Jorge Antonio Gómez Díaz, M. Lascurain, G. García‐Guzmán, J. C. López-Acosta","doi":"10.1177/19400829221078489","DOIUrl":"https://doi.org/10.1177/19400829221078489","url":null,"abstract":"Background and Research One noteworthy element found throughout the tropical anthropogenic mosaic is the live fence, which is established within agricultural matrices and its structure within the landscape retains ecological processes, but few are recognized as elements of biological and cultural conservation. Methods In this study, we have researched plant diversity and anthropic management of live fences in five sites surrounded by contrasting vegetation references: Tropical evergreen forest; tropical deciduous forest; cloud forest; and pine–oak and pine forests. We recorded the type of management by interviews with peasants. We established thirty 2 × 50 m transects within each site and sampled two strata: trees and saplings. Also, we documented seed dispersal mechanism, life form, local use, and origin of each species. Importance Value Index and diversity metrics were estimated for each site. Results 253 plant species were registered (181 genera/74 families). While fences associated with the tropical deciduous forest showed the greatest species richness (109 species), the pine forest fences showed the lowest richness (21 species). Zoochory was the main type of seed dispersal mechanism. Conclusions Independent to the site and the altitude, the configuration of living fences is structured by three processes: the selection of the initial trees, the availability of the arrival of zoochory species, and the tolerance of the owners for the plant species. Implications for Conservation Based on our results, live fences can be considered important tools for landscape management in Mexico.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41786388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 1
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信