Tropical Conservation Science最新文献_第10页

Modeling Future Potential Distribution of Buff-Bellied Hummingbird (Amazilia yucatanensis) Under Climate Change: Species vs. Subspecies 气候变化下黄腹蜂鸟(Amazilia yucatanensis)未来潜在分布的建模:种与亚种

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211030834

A. Vásquez-Aguilar, J. Ornelas, F. Rodríguez-Gómez, M. Cristina MacSwiney G.

{"title":"Modeling Future Potential Distribution of Buff-Bellied Hummingbird (Amazilia yucatanensis) Under Climate Change: Species vs. Subspecies","authors":"A. Vásquez-Aguilar, J. Ornelas, F. Rodríguez-Gómez, M. Cristina MacSwiney G.","doi":"10.1177/19400829211030834","DOIUrl":"https://doi.org/10.1177/19400829211030834","url":null,"abstract":"Global climate change is associated with changes in precipitation patterns and an increase in extreme weather events, which might shift the geographic distribution of species. Despite the importance of this topic, information is lacking for many species, particularly tropical birds. Here, we developed species distribution models (SDMs) to evaluate future projections of the distribution of the widespread Buff-bellied Hummingbird (Amazilia yucatanensis) and for each of the recognized subspecies (A. y. yucatanensis, A. y. cerviniventris, A. y. chalconota), under climate change scenarios. Using SDMs we evaluate current and future projections of their potential distribution for four Representative Concentration Pathway (RCPs) for the years 2050 and 2070. We also calculated the subspecies climatic niche breadth to test the relationship between their area of distribution and climatic niche breadth and their niche overlap. Future climate-change models suggested a small increase in the potential distribution of the species and the subspecies A. y. yucatanensis, but the predicted potential geographic range decreased in A. y. chalconota and remained unaffected in A. y. cerviniventris. The climatic niche of A. y. cerviniventris contained part niche space of A. y. yucatanensis and part of A. y. chalconota, but the climatic niches of A. y. yucatanensis and A. y. chalconota did not overlap. Our study highlights the importance of correctly choosing the taxonomic unit to be analyzed because subspecies will respond in a different manner to future climate change; therefore, conservation actions must consider intrinsic requirements of subspecies and the environmental drivers that shape their distributions.","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/10.1177/19400829211030834","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46063198","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: 7

Passive Acoustic Monitoring of Chaco Chachalaca (Ortalis canicollis) Over a Year: Vocal Activity Pattern and Monitoring Recommendations 一年多来对犬斜颈的被动声学监测：声乐活动模式和监测建议

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211058295

C. Pérez‐Granados, K. Schuchmann

{"title":"Passive Acoustic Monitoring of Chaco Chachalaca (Ortalis canicollis) Over a Year: Vocal Activity Pattern and Monitoring Recommendations","authors":"C. Pérez‐Granados, K. Schuchmann","doi":"10.1177/19400829211058295","DOIUrl":"https://doi.org/10.1177/19400829211058295","url":null,"abstract":"Chaco Chachalaca (Ortalis canicollis) is a declining Neotropical bird, for which our current knowledge about its natural history is very limited. Here, we evaluated for first time the utility of passive acoustic monitoring, coupled with automated signal recognition software, to monitor the Chaco Chachalaca, described the vocal behavior of the species across the diel and seasonal cycle patterns, and proposed an acoustic monitoring protocol to minimize error in the estimation of the vocal activity rate. We recorded over a complete annual cycle at three sites in the Brazilian Pantanal. The species was detected on 99% of the monitoring days, proving that this technique is a reliable method for detecting the presence of the species. Chaco Chachalaca was vocally active throughout the day and night, but its diel activity pattern peaked between 0500 and 0900. The breeding season of Chaco Chachalaca in the Brazilian Pantanal, based on seasonal changes in vocal activity, seems to occur during the last months of the dry season, with a peak in vocal activity between August and October. Our results could guide future surveys aiming to detect the presence of the species, both using traditional or acoustic surveys, or to evaluate changes in population abundance using passive acoustic monitoring, for which recorders should be left in the field for a minimum period of nine days to obtain a low-error estimate of the vocal activity of the species. Our results suggest that passive acoustic monitoring might be useful, as a complementary tool to field studies, for monitoring other cracids, a family with several threatened species that are reluctant to human presence.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":"400 ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41281646","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: 10

Unexpected Diversity in Regenerating Sites Stresses the Importance of Baselines: A Case Study With Bats (Order Chiroptera) on the Osa Peninsula, Costa Rica 再生地点的意外多样性强调基线的重要性:以哥斯达黎加奥萨半岛的蝙蝠(翼目)为例

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211028118

Elène Haave‐Audet, D. Audet, Michelle Monge-Velázquez, Eleanor Flatt, A. Whitworth

{"title":"Unexpected Diversity in Regenerating Sites Stresses the Importance of Baselines: A Case Study With Bats (Order Chiroptera) on the Osa Peninsula, Costa Rica","authors":"Elène Haave‐Audet, D. Audet, Michelle Monge-Velázquez, Eleanor Flatt, A. Whitworth","doi":"10.1177/19400829211028118","DOIUrl":"https://doi.org/10.1177/19400829211028118","url":null,"abstract":"Introduction: Background and Research Aims: Assessing biodiversity recovery is key to determine whether the objectives of habitat restoration for conservation are met. Many restoration initiatives use cross-sectional comparisons of wildlife communities to infer restoration impact instead of longitudinal assessments from a baseline state. Using an indicator of biodiversity in the neotropics— bats— we demonstrate how assessing community diversity and composition in an area targeted for restoration prior to implementation, and when compared to surrounding intact forest, provides the groundwork to track changes in the community post-restoration. Methods We assessed bat communities by 1) using mist-net surveys to identify species in the family Phyllostomidae (leaf-nosed bats), and 2) conducting acoustic surveys to identify non-phyllostomid species (aerial insectivores). Results For both groups, we found that areas targeted for restoration had similar diversity as the surrounding forest, but the two habitat types differed in community composition. Phyllostomids were captured at higher rates in forest, but aerial insectivores were detected at higher rates in restoration habitat. Conclusion Our baseline assessment revealed unexpected diversity in areas targeted for restoration. The presence of all trophic groups in restoration habitat suggests that bats provide key ecosystem services in the restoration process, such as through seed dispersal, pollination and insect pest control. Implications for Conservation: Conducting a baseline survey of bats in areas targeted for restoration demonstrated that the community was not species poor at the baseline and was different from the surrounding forest, allowing us to better track restoration success and the effects of different restoration treatments.","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/10.1177/19400829211028118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41421222","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

Evaluation on the Meteorological Service for Mitigating the Severe Impacts of Typhoon Rammasun 减轻台风“威马逊”严重影响的气象服务评价

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/1940082921992660

Yingjie Liu, Bingwei Cui, W. Batchelor, Chengyi Zhang

引用次数: 1

Quantifying Wire Snares as a Threat to Leopards in Karnataka, India 印度卡纳塔克邦对豹子的威胁

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211023264

S. Gubbi, Aparna Kolekar, V. Kumara

{"title":"Quantifying Wire Snares as a Threat to Leopards in Karnataka, India","authors":"S. Gubbi, Aparna Kolekar, V. Kumara","doi":"10.1177/19400829211023264","DOIUrl":"https://doi.org/10.1177/19400829211023264","url":null,"abstract":"Though large felids are flagship species for wildlife conservation they are threatened due to various anthropogenic impacts. Mapping spatial patterns and quantification of threats to large felines can help conservation planning and resource allocation. The Leopard Panthera pardus, is categorized as Vulnerable by the IUCN as it faces a variety of threats. However, quantified data on the threats faced by leopards is scant. Hunting of wildlife using wire snares is one of the severest threats in India and elsewhere. Snaring, one of the simplest and most effective hunting techniques impacts other non-target species like the leopard. In this study, we document the spatial and temporal trends of snaring of leopards from India. Through content analysis of newspapers and news portals for the period January 2009-December 2020, we documented 113 incidents of leopards caught in snares of which 59.3% (5.5 leopards/year) resulted in mortality of leopards. Most snares (97.5%) were set to catch wild prey. Of the 84 incidents for which exact location details were available, the proportion of leopards caught in snares (54.7%, n = 46) and resulted in mortality (50%) in human-dense areas was significantly higher depicting an elevated threat from snares in these landscapes. Results from Generalised Additive Model indicated that snaring incidences increased with human population density. Percentage of protexted area to the geographical area within a district had little impact on the number of snaring incidents. The study results could help threat monitoring and conservation programs for leopards, especially outside the protexted area system.","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/10.1177/19400829211023264","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49401675","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: 11

Balancing Bees and Livestock: Pastoralist Knowledge, Perceptions and Implications for Pollinator Conservation in Rangelands, Northern Tanzania 平衡蜜蜂和牲畜:坦桑尼亚北部牧场传粉者保护的牧民知识、观念和影响

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211028127

Faith T. Mpondo, P. Ndakidemi, A. Treydte

{"title":"Balancing Bees and Livestock: Pastoralist Knowledge, Perceptions and Implications for Pollinator Conservation in Rangelands, Northern Tanzania","authors":"Faith T. Mpondo, P. Ndakidemi, A. Treydte","doi":"10.1177/19400829211028127","DOIUrl":"https://doi.org/10.1177/19400829211028127","url":null,"abstract":"Insect pollinators provide numerous ecosystem services that support other living organisms. While pollinators play a large role in cropping systems, little is known about their presence and function in rangeland ecosystems, which have recently become fragmented and overexploited at an extraordinary rate. We assessed local Maasai knowledge on insect pollinators and how pollinators affect livelihood diversification in Simanjiro rangelands, Tanzania. Through questionnaires, key informant interviews, focus group discussions, and field observations, we found varied insect knowledge among Maasai herders. Lasioglossum of sub genus Ipomalictus and Syriphidae were the least commonly recognized pollinators as only 24%, and 7% of participants could identify them, respectively. Responses varied significantly between men and women (F = 7.397, p = .007). Commiphora africana, Acacia mellifera and Albizia anthelmintica were noted as most important bee forage plants while observations showed Aspilia mossambicensis, Justicia debile and Acacia tortilis. Most (77%) of Maasai herders showed limited ability to link pollinators and rangeland wellbeing. Beekeeping contributed to livelihood diversification for 61% of respondents, with women participating more frequently than men (χ2 = 46.962, p = .0001). Beekeeping was positively influenced by education level (R = .421, p < .0001) and occupation (R = .194, p = .009). Pollinator declines were attributed to climate change (47%), agriculture (37%), and habitat destruction (8%). We conclude that Maasai have limited knowledge of common pollinator groups and their roles. Community outreach and training should bridge the knowledge gap in pastoralist communities to fully realize pollinator benefits and highlight the importance of rangeland health.","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/10.1177/19400829211028127","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43740402","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

Leaf Nutrient Relations of Cycads in a Common Garden 普通园林中苏铁的叶片营养关系

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211036570

T. Marler, A. Lindström

{"title":"Leaf Nutrient Relations of Cycads in a Common Garden","authors":"T. Marler, A. Lindström","doi":"10.1177/19400829211036570","DOIUrl":"https://doi.org/10.1177/19400829211036570","url":null,"abstract":"Background and Aims Research required to clarify leaf nutrient relations of cycad species has been inadequate. Common garden studies are useful for determining the influence of genetics on leaf traits because of the homogeneous environment among experimental units. To date, there have been no common garden studies which included all ten genera of cycads. The full phylogenetic breadth has, therefore, not been included in this important area of study. Methods We examined macronutrient and micronutrient content of leaves from one representative species from each of the ten cycad genera at Nong Nooch Tropical Botanical Garden in Thailand. Nitrogen content was determined by dry combustion, and the remaining nutrients were quantified by spectrometry. Results The least variable elements were nitrogen and phosphorus, and the most variable elements were boron and sodium. Nutrient content based on leaflet area was more variable than based on leaflet mass, reflecting species differences in specific leaf area. There were no universal macronutrient or micronutrient signals indicating clear phylogenetic distinctions. Implications for Conservation: Active management of threatened cycad taxa requires research to develop the knowledge to enable evidence-based decisions. This common garden study inclusive of all 10 cycad genera creates a foundation to determine leaf nutrient sufficiency ranges to inform management decisions.","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/10.1177/19400829211036570","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47126494","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

Brazil’s Next Deforestation Frontiers 巴西的下一个森林砍伐前沿

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2021-01-01 DOI: 10.1177/19400829211020472

M. Schneider, Ana Alice Biedzicki de Marques, C. Peres

引用次数: 6

Disguising Elephant Ivory as Other Materials in the Online Trade 将象牙伪装成其他物品进行网上交易

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2020-12-01 DOI: 10.1177/1940082920974604

Sofia Venturini, D. Roberts

{"title":"Disguising Elephant Ivory as Other Materials in the Online Trade","authors":"Sofia Venturini, D. Roberts","doi":"10.1177/1940082920974604","DOIUrl":"https://doi.org/10.1177/1940082920974604","url":null,"abstract":"Despite efforts of law enforcement, tech companies and other stakeholders, the illegal online trade in wildlife products continues to increase. A particular problem in tackling this online illicit trade is the misdescription of item materials, making the search for internationally CITES regulated materials, such as elephant ivory, challenging. We investigated the issue of misrepresentation of materials in item descriptions by studying the trade in netsuke, carved objects, attached to the cord of the kimono, originally from 17th century Japan, that are often made of elephant ivory. The study, conducted on the online marketplace, eBay, in the United Kingdom, shows that elephant ivory is still sold in spite of eBay’s policy on ivory. While the netsuke trade is small, elephant ivory was most frequently described as cow bone. Our results also indicated that, among the items identified as elephant ivory, only a small fraction were actually detected and removed by eBay. To discourage the sale of ivory items, eBay should increase its efforts to implement its policy banning the trade in ivory. Further, eBay could consider additional restrictions on the range of words that can be used by the vendors in all of the item listing fields.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1940082920974604","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45431485","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

Distribution Pattern of Trait-Based Community Assembly for Cyclobalanopsis Glauca in the Guilin Karst Mountainous Areas, China 桂林喀斯特山区青冈基于性状的群落聚集分布格局

IF 1.7 4区环境科学与生态学

Tropical Conservation Science Pub Date : 2020-12-01 DOI: 10.1177/1940082920980279

Shichu Liang, Hongling Lin, Han Bao, Yipeng Yao, Yong Jiang, Yuejuan Li, Yuanfang Pan

{"title":"Distribution Pattern of Trait-Based Community Assembly for Cyclobalanopsis Glauca in the Guilin Karst Mountainous Areas, China","authors":"Shichu Liang, Hongling Lin, Han Bao, Yipeng Yao, Yong Jiang, Yuejuan Li, Yuanfang Pan","doi":"10.1177/1940082920980279","DOIUrl":"https://doi.org/10.1177/1940082920980279","url":null,"abstract":"Cyclobalanopsis glauca is one of the most dominant species in the late succession stage of plant communities in the Guilin karst mountainous areas of China. In order to explore its role in community assembly and adaptation strategies, we quantified three continuous traits (LA, SLA and WD) for 52 woody species and documented community composition for 20 plots across different habitat conditions. We performed a trait-gradient analysis to partition species trait values between alpha and beta components within and between communities. Alpha trait components consistently varied more widely than beta components, which suggests that much of the trait variation between species was associated with different functional strategies within a shared environment. The different correlation structures for alpha and beta components reflects community assembly processes at different scales. The alpha components were largely uncorrelated with the exception of SLA and WD, while the beta components showed significant correlations along the environmental gradient. There is a significant positive correlation between LA and SLA and significant negative correlations between both LA and WD as well as between SLA and WD. These results demonstrate that slow-growing species with high resource-use efficiency gradually became the dominant species in the late successional stage for Cyclobalanopsis glauca forest and co-occurring species in the same community employ different trait assemblies.","PeriodicalId":49118,"journal":{"name":"Tropical Conservation Science","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1940082920980279","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45276985","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