Tropical Conservation Science最新文献_第9页

Understanding Drivers of Unsustainable Natural Resource Use in the Comoro Islands 了解科摩罗群岛不可持续自然资源利用的驱动因素

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211032585

Mohamed Thani Ibouroi, Said Ali Ousseni Dhurham, A. Besnard, N. Lescureux

{"title":"Understanding Drivers of Unsustainable Natural Resource Use in the Comoro Islands","authors":"Mohamed Thani Ibouroi, Said Ali Ousseni Dhurham, A. Besnard, N. Lescureux","doi":"10.1177/19400829211032585","DOIUrl":"https://doi.org/10.1177/19400829211032585","url":null,"abstract":"The Comoros archipelago is a biodiversity hotspot by virtue of its high level of endemism. However, it suffers one of the highest rates of forest loss worldwide, mainly due to strong anthropogenic pressures. As Comorian populations depend on forest resources for subsistence, establishing relevant conservation strategies for their sustainable management requires the consideration of multiple stakeholders’ perspectives toward biodiversity and habitat conservation. To better understand the relationships between humans and nature; how comorian people use natural resource and the relevance of a protected area for long-term biodiversity conservation, we used Q-methodology to assess local people’s perceptions regarding biodiversity and conservation actions. Three discourses are identified during analysis: “Pro-environment discourse”, “Keeping things as usual” and “Social and environmental concerns”. According to the results, employed respondents, were favorable to long-term forest and biodiversity conservation. In contrast, unemployed respondents were in favor of more immediate benefits while unemployed but educated respondents were in favor to both long-term forest conservation and immediate benefits from forests. This suggests that poverty and a lack of access to basic services is associated with overharvesting of natural resources by rural people. These results suggest that biodiversity conservation of the Comoros archipelagos may benefit for plan aiming at (1) developing tourism and maintaining sustainable production of crops and livestock that could allow enhancing livelihoods and well-being of all social groups, (2) developing projects such as local markets that could allow villagers to sell agricultural productions, (3) setting up awareness campaign for tree-planting and reforestation. Reforestation could allow re-establishing natural plants and make large trees available for long-term purposes.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42738423","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: 6

Dung Beetle Diversity and Community Composition Along a Land Use Gradient in a Savannah Ecosystem of North Western Tanzania 坦桑尼亚西北部大草原生态系统土地利用梯度下屎壳郎多样性和群落组成

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211008756

Roisin Stanbrook, J. Norrey, A. Kisingo, Martin J. Jones

{"title":"Dung Beetle Diversity and Community Composition Along a Land Use Gradient in a Savannah Ecosystem of North Western Tanzania","authors":"Roisin Stanbrook, J. Norrey, A. Kisingo, Martin J. Jones","doi":"10.1177/19400829211008756","DOIUrl":"https://doi.org/10.1177/19400829211008756","url":null,"abstract":"Habitat loss and degradation are the most widely cited drivers of changes in species abundance and diversity. We explored changes in dung beetle species diversity and composition across different land uses in the north west Tanzanian savannah. We expected a negative response gradient in the diversity and composition of the dung beetle community, from land uses that preserve vegetation and hold native mammal diversity to livestock intensive and heavily grazed areas. Dung beetles were sampled in a protected area and two anthropogenically influenced land use types. Species richness and composition of each land use type, including differences in diversity and functional groups were analyzed and indicator species for each land use gradient were identified. As expected, diversity and community composition varied between areas with less environmental change compared to those impacted anthropogenically. We conclude that conservation of protected areas within African savannahs can provide a functionally rich dung beetle community and subsequently rich ecological functions. The dung beetle species identified by this study as eco-indicators can be used as a benchmark for future studies that use rapid monitoring to assess disturbance in African savannas.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/19400829211008756","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46269951","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: 5

Effects of In Situ Burial and Sub-Optimal Storage on Seed Longevity and Reserve Resources in Sub-Tropical Mountain Cloud Forest Tree Species of Mexico 就地埋藏和次优贮藏对墨西哥亚热带山地云林树种种子寿命和储备资源的影响

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/1940082921989196

Candelaria Garcias-Morales, A. Orozco-Segovia, D. Soriano, Susana Zuloaga-Aguilar

{"title":"Effects of In Situ Burial and Sub-Optimal Storage on Seed Longevity and Reserve Resources in Sub-Tropical Mountain Cloud Forest Tree Species of Mexico","authors":"Candelaria Garcias-Morales, A. Orozco-Segovia, D. Soriano, Susana Zuloaga-Aguilar","doi":"10.1177/1940082921989196","DOIUrl":"https://doi.org/10.1177/1940082921989196","url":null,"abstract":"To design conservation and management strategies for sub-tropical moist forests, it is important to know how storage affects the longevity and germination of desiccation-sensitive seeds. These variables are controlled by a physiological process that is mainly associated with the seeds’ moisture content and reserve content, which can be significantly affected by environmental conditions. The objectives of this study were: (i) to evaluate the relationship between longevity and reserve content of sensitive and non-sensitive desiccation seeds (ii), and to describe how the in situ burial and sub-optimal storage (inside growth chambers) can affect seed longevity. In seeds of six mountain cloud forest tree species, germination and seed reserve content were quantified in seeds collected recently (control) and at five different times, along with storage for 31 or 35 days in situ and under suboptimal conditions. Freshly harvested seeds with higher soluble carbohydrate and lipid content and the presence of thermo-stable proteins had the longest-expected ecological longevity and mean germination time. In contrast to in situ burial, germination was negatively affected by storage time. Burial time significantly affected the rate and mean germination time in most of the species. For two species, a greater soluble carbohydrate or a lower starch and lipid content in seeds was found to be related to the high germination rate in storage. Our results show that the sub-optimal storage reduces the lifespan in most of the study species and increases seed damages through dehydration.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1940082921989196","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43979160","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

Mapping Potential Areas for Conservation Under Forest Carbon Credit Eligibility in a Natural Protected Area in Northern Mexico 在墨西哥北部自然保护区的森林碳信用资格下绘制潜在保护区域

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211029448

Carolina Orta-Salazar, C. Aguirre-Salado, H. Reyes-Hernández, J. A. Reyes-Agüero, Carlos Alfonso Muñoz-Robles

引用次数: 2

Malignant Snare Traps Threaten an Irreplaceable Megafauna Community 恶性陷阱威胁着不可替代的巨型动物群落

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/1940082921989187

J. Figel, M. Hambal, I. Krisna, R. Putra, Dedi Yansyah

引用次数: 15

First Report of the Larva of a Vulnerable Damselfly in Nigeria, With Some Ecological Notes: A Case for Umbrella Species Conservation Approach 尼日利亚一种脆弱豆娘幼虫的首次报告，并附有一些生态注释:保护伞物种保护方法的案例

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211044629

E. O. Akindele, Abiodun M. Adedapo, B. Adu, S. S. Ogbogu

{"title":"First Report of the Larva of a Vulnerable Damselfly in Nigeria, With Some Ecological Notes: A Case for Umbrella Species Conservation Approach","authors":"E. O. Akindele, Abiodun M. Adedapo, B. Adu, S. S. Ogbogu","doi":"10.1177/19400829211044629","DOIUrl":"https://doi.org/10.1177/19400829211044629","url":null,"abstract":"Background and Research Lack of information on the distribution of threatened aquatic species impedes their conservation, thus predisposing them to extinction risk before being reported. Hence, this study reports in Nigeria, for the first time, the occurrence and habitat specificity of the larva of Pentaphlebia stahli (Zygoptera: Pentaphlebiidae) a vulnerable damselfly. Methods Samples of P. stahli were collected in July and December 2020 from a rural stream situated at the Ekor Waterfalls in the Cross River State of Nigeria and very close to the Nigeria–Cameroon border. Some water quality parameters were also measured in each sampling period. Results A total of 27 larvae of P. stahli and 1 teneral adult emerging from its exuvia were recorded in the two sampling periods. The habitat was a forested stream characterized by rapids, falls, and dark rock substrata. Water flows at a fast rate of 1 m in 3 or 4 seconds, thus characterizing a rifle and headwater stream. Dissolved oxygen concentration was between 8.05 and 8.09 mg/L, while dissolved oxygen saturation was ∼98%. Biological oxygen demand was between 1.04 and 1.08 mg/L, while pH ranged from 7.28 and 7.56. Conclusion The stream could be described as having high ecological integrity as evidenced in its optimum range of values for the investigated water parameters and the presence of a threatened species. Implications for Conservation Based on habitat specificity, P. stahli is considered an umbrella species required for conserving other co-occurring species in the tropical stream and its riparian forest.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45211956","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

Diversity and Conservation of Cave-Roosting Bats in Central Ghana 加纳中部穴居蝙蝠的多样性和保护

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211034671

E. E. Nkrumah, Heather J. Baldwin, Ebenezer K. Badu, Priscilla Anti, Peter Vallo, S. Klose, E. Kalko, S. Oppong, M. Tschapka

{"title":"Diversity and Conservation of Cave-Roosting Bats in Central Ghana","authors":"E. E. Nkrumah, Heather J. Baldwin, Ebenezer K. Badu, Priscilla Anti, Peter Vallo, S. Klose, E. Kalko, S. Oppong, M. Tschapka","doi":"10.1177/19400829211034671","DOIUrl":"https://doi.org/10.1177/19400829211034671","url":null,"abstract":"Background Ghana is one of the six bat diversity hotspots on the African continent, yet its caves have not been fully explored for the bats they host. Research Aims We aimed to assess the species composition and diversity of five caves in central Ghana and identified those needing immediate conservation attention. Methods Using mist-nets, we captured bats over 102 full nights between October 2010 and July 2012 from the Upper Guinean forest and Savannah regions in central Ghana. Results A total of 10,226 bats belonging to nine species were recorded. PERMANOVA suggested significant variation in species composition among the caves. A SIMPER analysis revealed Coleura afra and Hipposideros jonesi to be the main discriminating species between caves, with a dominance of Hipposideros cf. ruber in all caves. The Bat Cave Vulnerability Index (BCVI) revealed Mframabuom cave from the Upper Guinean forest region as a high priority cave hosting threatened species, yet highly disturbed. The remaining caves were identified as medium priority caves. Conclusion The results of the study suggest the need for further research and an immediate conservation strategy as essential for approaching national conservation goals.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/19400829211034671","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43262553","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

Tree Species Diversity, Composition and Aboveground Biomass Across Dry Forest Land-Cover Types in Coastal Ecuador 厄瓜多尔沿海干旱林地覆盖类型的树种多样性、组成和地上生物量

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/1940082921995415

Xavier Haro-Carrión, B. Loiselle, F. Putz

{"title":"Tree Species Diversity, Composition and Aboveground Biomass Across Dry Forest Land-Cover Types in Coastal Ecuador","authors":"Xavier Haro-Carrión, B. Loiselle, F. Putz","doi":"10.1177/1940082921995415","DOIUrl":"https://doi.org/10.1177/1940082921995415","url":null,"abstract":"Tropical dry forests (TDF) are highly threatened ecosystems that are often fragmented due to land-cover change. Using plot inventories, we analyzed tree species diversity, community composition and aboveground biomass patterns across mature (MF) and secondary forests of about 25 years since cattle ranching ceased (SF), 10–20-year-old plantations (PL), and pastures in a TDF landscape in Ecuador. Tree diversity was highest in MF followed by SF, pastures and PL, but many endemic and endangered species occurred in both MF and SF, which demonstrates the importance of SF for species conservation. Stem density was higher in PL, followed by SF, MF and pastures. Community composition differed between MF and SF due to the presence of different specialist species. Some SF specialists also occurred in pastures, and all species found in pastures were also recorded in SF indicating a resemblance between these two land-cover types even after 25 years of succession. Aboveground biomass was highest in MF, but SF and Tectona grandis PL exhibited similar numbers followed by Schizolobium parahyba PL, Ochroma pyramidale PL and pastures. These findings indicate that although species-poor, some PL equal or surpass SF in aboveground biomass, which highlights the critical importance of incorporating biodiversity, among other ecosystem services, to carbon sequestration initiatives. This research contributes to understanding biodiversity conservation across a mosaic of land-cover types in a TDF landscape.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":"41 10","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1940082921995415","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41277795","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

Local Knowledge and Use of Pangolins by Culturally Diverse Communities in the Forest-Savannah Transition Area of Cameroon 喀麦隆森林-大草原过渡地区文化多样性社区对穿山甲的当地知识和利用

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211028138

Alain D. T. Mouafo, Daniel J. Ingram, Romaric Tegang Pagning, Itoe Constantine Nfor Ngwayi, T. Mayaka

{"title":"Local Knowledge and Use of Pangolins by Culturally Diverse Communities in the Forest-Savannah Transition Area of Cameroon","authors":"Alain D. T. Mouafo, Daniel J. Ingram, Romaric Tegang Pagning, Itoe Constantine Nfor Ngwayi, T. Mayaka","doi":"10.1177/19400829211028138","DOIUrl":"https://doi.org/10.1177/19400829211028138","url":null,"abstract":"Information about the presence and population status of pangolins, and the threats they face, remains limited in many parts of Cameroon, a country that is home to three species of pangolin and considered to be a global hub of pangolin trafficking. Local communities living in rural areas can provide valuable information on species presence, local uses of wildlife, and possible threats, that is useful for prioritising conservation actions. Using interview surveys in 20 villages surrounding Mbam and Djerem National Park, we investigated local peoples’ knowledge of pangolin presence, perceptions of population trends, cultural importance, consumptive and non-consumptive uses, and hunting of pangolins. Our results showed that most people recognised the white-bellied and giant pangolins, but only 10% recognised the black-bellied pangolin. Ethnolinguistic group significantly affected the likelihood of respondents recognising and having seen a pangolin before. Giant pangolin populations were perceived to be declining, particularly by older respondents. We found evidence of local use of pangolins for meat, but few respondents reported uses of scales. Cultural significance was reported by few respondents, but when it was reported it mostly referred to giant pangolin. White-bellied pangolins are reportedly hunted using bare hands for local consumption most frequently, whilst giant pangolins were mainly hunted for local consumption and income generation using wire snares. Overall, our study shows the possible value of local knowledge for planning and prioritising conservation actions for pangolins. We highlight the urgent need to monitor pangolin populations, and assess the possible impacts to pangolins from threats such as hunting.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/19400829211028138","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48684259","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: 8

Species-Area Relationships Induced by Forest Habitat Fragmentation Apply Even to Rarely Detected Organisms 森林生境破碎化诱导的物种-面积关系甚至适用于很少被发现的生物

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211017366

A. Palmeirim, R. Fraga, M. Vieira, C. Peres

{"title":"Species-Area Relationships Induced by Forest Habitat Fragmentation Apply Even to Rarely Detected Organisms","authors":"A. Palmeirim, R. Fraga, M. Vieira, C. Peres","doi":"10.1177/19400829211017366","DOIUrl":"https://doi.org/10.1177/19400829211017366","url":null,"abstract":"Neotropical snakes have extremely low detection rates, hampering our understanding of their responses to habitat loss and fragmentation. We addressed this gap using a limited sample (50 individuals, 16 species) across 25 variable-size insular forest fragments within a hydroelectric lake and four adjacent mainland continuous forest sites, in Central Brazilian Amazonia. The number of species recorded on forest islands (1.55 ± 0.78) was much lower than that at continuous forest sites (5.0 ± 3.1), with no snakes being recorded at twelve islands smaller than 30 ha. As such, snake assemblages were positively affected by forest area, explaining 48% of the number of species, and negatively affected by island isolation. The markedly higher number of species recorded across continuous forest sites likely results from the availability of riparian habitats, which have virtually disappeared from the archipelagic landscape given the widespread inundation of lowland areas. To prevent further severe biodiversity loss, including those of poorly known rare taxa, conservation policies should avert the additional construction of mega-dams that create myriad of small islands, in addition to extensive reservoir lakes from which all riparian habitats are eliminated.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/19400829211017366","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48899959","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