Chinese giant salamander(CGS, Andrias davidianus) is experiencing the threat of extinction. It is disappearing gradually, because of overharvesting, environmental pollution, specially river pollution, activity of huma...Chinese giant salamander(CGS, Andrias davidianus) is experiencing the threat of extinction. It is disappearing gradually, because of overharvesting, environmental pollution, specially river pollution, activity of human exploitation, and so on. We conducted community interview fieldworks to collect respondent data from Xieba Country(not reserve) situated in Zhengan County of Guizhou Province, where one of the places known by historical giant salamander records in Guizhou. Through the analysis of the collected data, we created quantitative data of use for conservation management on the local status of salamander populations, and we compared our data with those available data of Y. Pan et al., who investigated the status of CGS in 3 reserves in Guizhou Province in 2015.The conclusions have a similar trend, which proved that the collected data were creditable. Through statistical analysis of the comparison data, the number of wild CGS decreased actually followed the increase of artificial framing.Because of the source of breeding to catch wild CGS, overharvesting was likely the most reason to make wild CGS decline.展开更多
Small-scale fisheries(SSFs)are increasingly vulnerable to climate change,particularly in data-limited regions where scientific monitoring is scarce.Local Ecological Knowledge(LEK)offers valuable insights into environm...Small-scale fisheries(SSFs)are increasingly vulnerable to climate change,particularly in data-limited regions where scientific monitoring is scarce.Local Ecological Knowledge(LEK)offers valuable insights into environmental changes and adaptive practices.This study investigated the LEK of mangrove subsistence fishers in Masinloc,Zambales,Philippines,focusing on their perceptions of climate change impacts and the influence of demographic factors on LEK utilization.A structured survey was administered to 335 fishers across four barangays(villages),employing binary and open-ended questions to assess LEK related to climate indicators such as temperature fluctuations,rainfall patterns,typhoon occurrences,and flooding events.Quantitative data were analyzed using Pearson’s chi-square tests,Bonferroni-adjusted post-hoc pairwise comparisons,and Cramer’s V to identify specific associations between LEK and demographic variables.Findings revealed that while fishers possess substantial LEK pertinent to climate change,its application varies significantly with barangay,age,and educational attainment.Notably,these demographic factors influenced the depth and breadth of LEK used in predicting and responding to climate-related events.The study underscored the importance of integrating LEK into climate adaptation strategies,recognizing its potential to enhance resilience in SSFs.Although centered on a specific locale,the insights gleaned from this research contribute to the broader discourse on the role of indigenous knowledge systems in climate change resilience,offering a model for similar communities globally.展开更多
Throughout the world, climate change is threatening the human population. In West Africa, smallholder farmers in indigenous agricultural societies typically hold considerable knowledge. Therefore, this study was condu...Throughout the world, climate change is threatening the human population. In West Africa, smallholder farmers in indigenous agricultural societies typically hold considerable knowledge. Therefore, this study was conducted in West Atacora of Benin Republic to assess the drivers of farmers’ perceptions of climate change risk. We used a random sampling technique to select 360 households’ heads who were interviewed regarding different climate change risks perception. Binomial logistic regression was used to assess the drivers of farmers’ perceptions of climate change risks. The results showed that the farmers in drier areas had a higher perception of the global risk of climate change than those in humid areas. The same trend was observed for the seven different individual’s climate change risk investigated. The study identified also membership of farm organizations as main sociodemographic characteristic that explains farmers’ perception of climate change risk perception. These findings are helpful tools to sensitize the local people on climate change risk and cope with the risk in agricultural lands.展开更多
Estimating the population abundance of marine wildlife is fundamental for developing evidence-based man-agement strategies.However,standard field-based methods for estimating marine animal abundance can be time-consum...Estimating the population abundance of marine wildlife is fundamental for developing evidence-based man-agement strategies.However,standard field-based methods for estimating marine animal abundance can be time-consuming and costly,and may not effectively monitor populations over long time frames or large spatial scales.In this study,we attempted to utilize local ecological knowledge(LEK)to estimate population abundance of a marine mammal by collecting interview-based sighting data from a large-scale fisher questionnaire survey in the mainland of China for the Indo-Pacific humpback dolphin(Sousa chinensis).To validate our findings,we compared this information with data obtained from standard field surveys published in the literature.Despite the inability to accurately predict absolute abundance,all four indices(encounter rate,encounter rate in the past decade,sighting frequency,and mean annual sightings in the past five years)derived from interview sighting history had a highly significant correlation with abundance rank from field survey.In addition,the severe population declines and identified causes(water pollution,habitat destruction,overfishing,and bycatch)re-ported by respondents also aligned closely with independent field survey data.This is the first time that interview data have been shown to provide accurate quantitative information on a marine species’relative abundance.We therefore propose that interview-based surveys can serve as a valuable monitoring technique to assess the population status of cetaceans and other distinctive marine megafauna,particularly in systems where field survey programs are limited in scale and scope.展开更多
基金Supported by National Natural Science Foundation of China(31360144)the Key Laboratory of Biodiversity Preservation,Guiyang University
文摘Chinese giant salamander(CGS, Andrias davidianus) is experiencing the threat of extinction. It is disappearing gradually, because of overharvesting, environmental pollution, specially river pollution, activity of human exploitation, and so on. We conducted community interview fieldworks to collect respondent data from Xieba Country(not reserve) situated in Zhengan County of Guizhou Province, where one of the places known by historical giant salamander records in Guizhou. Through the analysis of the collected data, we created quantitative data of use for conservation management on the local status of salamander populations, and we compared our data with those available data of Y. Pan et al., who investigated the status of CGS in 3 reserves in Guizhou Province in 2015.The conclusions have a similar trend, which proved that the collected data were creditable. Through statistical analysis of the comparison data, the number of wild CGS decreased actually followed the increase of artificial framing.Because of the source of breeding to catch wild CGS, overharvesting was likely the most reason to make wild CGS decline.
文摘Small-scale fisheries(SSFs)are increasingly vulnerable to climate change,particularly in data-limited regions where scientific monitoring is scarce.Local Ecological Knowledge(LEK)offers valuable insights into environmental changes and adaptive practices.This study investigated the LEK of mangrove subsistence fishers in Masinloc,Zambales,Philippines,focusing on their perceptions of climate change impacts and the influence of demographic factors on LEK utilization.A structured survey was administered to 335 fishers across four barangays(villages),employing binary and open-ended questions to assess LEK related to climate indicators such as temperature fluctuations,rainfall patterns,typhoon occurrences,and flooding events.Quantitative data were analyzed using Pearson’s chi-square tests,Bonferroni-adjusted post-hoc pairwise comparisons,and Cramer’s V to identify specific associations between LEK and demographic variables.Findings revealed that while fishers possess substantial LEK pertinent to climate change,its application varies significantly with barangay,age,and educational attainment.Notably,these demographic factors influenced the depth and breadth of LEK used in predicting and responding to climate-related events.The study underscored the importance of integrating LEK into climate adaptation strategies,recognizing its potential to enhance resilience in SSFs.Although centered on a specific locale,the insights gleaned from this research contribute to the broader discourse on the role of indigenous knowledge systems in climate change resilience,offering a model for similar communities globally.
文摘Throughout the world, climate change is threatening the human population. In West Africa, smallholder farmers in indigenous agricultural societies typically hold considerable knowledge. Therefore, this study was conducted in West Atacora of Benin Republic to assess the drivers of farmers’ perceptions of climate change risk. We used a random sampling technique to select 360 households’ heads who were interviewed regarding different climate change risks perception. Binomial logistic regression was used to assess the drivers of farmers’ perceptions of climate change risks. The results showed that the farmers in drier areas had a higher perception of the global risk of climate change than those in humid areas. The same trend was observed for the seven different individual’s climate change risk investigated. The study identified also membership of farm organizations as main sociodemographic characteristic that explains farmers’ perception of climate change risk perception. These findings are helpful tools to sensitize the local people on climate change risk and cope with the risk in agricultural lands.
基金financially supported by the National Natural Science Foundation of China(42225604 and 42494883)Science and Technology Talent Innovation Project of Hainan(Grant No.KJRC 2023B03)Field survey was approved by the Research Ethics Committee of the Institute of Deep-sea Science and Engineering,Chinese Academy of Sciences(IDSSE-SYLL-MMMBL-01).
文摘Estimating the population abundance of marine wildlife is fundamental for developing evidence-based man-agement strategies.However,standard field-based methods for estimating marine animal abundance can be time-consuming and costly,and may not effectively monitor populations over long time frames or large spatial scales.In this study,we attempted to utilize local ecological knowledge(LEK)to estimate population abundance of a marine mammal by collecting interview-based sighting data from a large-scale fisher questionnaire survey in the mainland of China for the Indo-Pacific humpback dolphin(Sousa chinensis).To validate our findings,we compared this information with data obtained from standard field surveys published in the literature.Despite the inability to accurately predict absolute abundance,all four indices(encounter rate,encounter rate in the past decade,sighting frequency,and mean annual sightings in the past five years)derived from interview sighting history had a highly significant correlation with abundance rank from field survey.In addition,the severe population declines and identified causes(water pollution,habitat destruction,overfishing,and bycatch)re-ported by respondents also aligned closely with independent field survey data.This is the first time that interview data have been shown to provide accurate quantitative information on a marine species’relative abundance.We therefore propose that interview-based surveys can serve as a valuable monitoring technique to assess the population status of cetaceans and other distinctive marine megafauna,particularly in systems where field survey programs are limited in scale and scope.
