The Tibetan antelope （Pantholops hodgsonii）, indigenous to China, became an endangered species because of considerable reduction both in number and distribution during the 20th century. Presently, it is listed as an...The Tibetan antelope （Pantholops hodgsonii）, indigenous to China, became an endangered species because of considerable reduction both in number and distribution during the 20th century. Presently, it is listed as an Appendix Ⅰ species by CITES and as Category I by the Key Protected Wildlife List of China. Understanding the genetic diversity and population structure of the Tibetan antelope is significant for the development of effective conservation plans that will ensure the recovery and future persistence of this species. Twenty-five microsatellites were selected to obtain loci with sufficient levels of polymorphism that can provide information for the analysis of population structure. Among the 25 loci that were examined, nine of them showed high levels of genetic diversity. The nine variable loci （MCM38, MNS64, IOBT395, MCMAL TGLA68, BM1329, BMSI341, BM3501, and MB066） were used to examine the genetic diversity of the Tibetan antelope （n = 75） in Hoh Xil National Nature Reserve（HXNNR）, Qinghai, China. The results obtained by estimating the number of population suggested that all the 75 Tibetan antelope samples were from the same population. The mean number of alleles per locus was 9.4 ± 0.5300 （range, 7-12） and the mean effective number of alleles was 6.519± 0.5271 （range, 4.676-9.169）. The observed mean and expected heterozygosity were 0.844 ± 0.0133 （range, 0.791-0.897） and 0.838 ± 0.0132 （range, 0.786-0.891）, respectively. Mean Polymorphism Information Content （PIC） was 0.818 ± 0.0158 （range, 0.753-0.881）. The value of Fixation index （Fis） ranged from -0.269 to -0.097 with the mean of -0.163 ± 0.0197. Mean Shannon＇s information index was 1.990 ± 0.0719 among nine loci （range, 1.660-2.315）. These results provide baseline data for the evaluation of the level of genetic variation in Tibetan antelope, which will be important for the development of conservation strategies in future.展开更多
Surveys was conducted to study the population density and habitat utilization of the ibex （Capra ibex） in Tomur National Nature Reserve during October- December 2005. The results are as follows： ① The mean group s...Surveys was conducted to study the population density and habitat utilization of the ibex （Capra ibex） in Tomur National Nature Reserve during October- December 2005. The results are as follows： ① The mean group size of the ibex in Tomur Nature Reserve is 8.43 and the population density is 269.76/100 km^2; ② The ibex prefer areas with steep slope （between 30° -45°）, broken substrates and cliffs nearby （ 〈 100 m）. They avoid grasslands and fiat hillsides; ③The probable reason for this habitat selection is serf-protection.展开更多
Guizhou golden monkey (Phinopithecus roxellanae brelichi) is a peculiar, rare and endangered species. It is dis-tributed most narrowly and requires a rigorous habitat. In this study the habitats of Guizhou Golden Monk...Guizhou golden monkey (Phinopithecus roxellanae brelichi) is a peculiar, rare and endangered species. It is dis-tributed most narrowly and requires a rigorous habitat. In this study the habitats of Guizhou Golden Monkey were divided into three habitats: most suitable habitats, suitable habitats and marginally suitable habitats. The characteristics of the vegetation community, environmental factors and extreme environmental factors in the three habitats were systematically analyzed. The seasonal activity rule, activity area and the food characteristic of Guizhou golden monkey were also study at the same time. The results indicate that the evergreen and deciduous broadleaf mixed forest is the optimal living vegetation community for Guizhou golden Monkey, and the suitable annual temperature is 8-15 C, the extremely lowest temperature is 2.5 C, the extremely highest temperature is 25 C, and the optimal living altitude is 1500-1700 m. In the same area, the higher the vegetation diversity, the more suitable it is for the life of Guizhou golden monkey. Temperature and food are the main habitat factors in determining the activity scope of the guizhou golden monkey community. The Altitude, temperature and the characteristics of the vegetation community are the main limiting factors for habitat selection.展开更多
[ Objective] The study was to understand the changes of amylase（AMY） and superoxide dismutase（SOD） isozymes during the ger- mination process of Emmenopterys henryi Oliv seeds. [ Metbod] By employing polyacrylamide...[ Objective] The study was to understand the changes of amylase（AMY） and superoxide dismutase（SOD） isozymes during the ger- mination process of Emmenopterys henryi Oliv seeds. [ Metbod] By employing polyacrylamide gel electrophoresis method, the expressions of AMY and SOD isozymes during seed germination process were analyzed. ~ Result] The main AMY bands remained strong during the whole peri- od and a new band A2 appeared in the middle and late period of seed germination. Some new SOD bands occurred at the early stage, then be- came weak or disappeared in the middle period, and band S6 became intense in the late peried. [ Conclusion.] The expression of AMY and SOD isozyme gene has temporal difference during germination of E. henryi Oliv seeds.展开更多
Population estimates of black crested gibbons in Wuliang Nature Reserve,Jingdong,Yunnan,China,with two techniques,average group density total area and average home rang forest coverage,produced quite similar result...Population estimates of black crested gibbons in Wuliang Nature Reserve,Jingdong,Yunnan,China,with two techniques,average group density total area and average home rang forest coverage,produced quite similar results.The population was estimated around 115 groups in the Reserve.The paper also discussed the conservation problems of the Reserve.At present,the main threat to the gibbons is habitat fragmentation and population isolation.Thus,it is urgent to prohibit hunting and protect the habitat and forest corridors or habitat bridges.展开更多
lbex （Capra ibex）, a first grade protected animal, has not been well studied in China. Surveys were conducted to investigate the distribution of the ibex in the Tomur National Nature Reserve during October--November...lbex （Capra ibex）, a first grade protected animal, has not been well studied in China. Surveys were conducted to investigate the distribution of the ibex in the Tomur National Nature Reserve during October--November 2004, July 2005, and October-December 2005. The results were as follows： （1） Out of five valleys, the ibex was distributed in the Qiong-Tailan, Keqik-Tailan, and Muzart Valleys： （2） Ibexes were not observed in the Tomur Valley and Kuzbayi Valley in our surveys, but interview investigations indicated that they may be found here as well. Our results indicated that the nature reserve as a whole is in the distribution range of ibex and it plays an important role in protecting ibex and the alpine biodiversity. However, the uneven distribution pattern can be due to human activities. Therefore, the management of the reserve needs to be improved in the future.展开更多
Plant diversity, animal diversity and ecosystem diversity in the wetland were studied with field investigation and statistical analysis, and then biodiversity of Chen Lake wetland was also valued. The results showed t...Plant diversity, animal diversity and ecosystem diversity in the wetland were studied with field investigation and statistical analysis, and then biodiversity of Chen Lake wetland was also valued. The results showed that the reasonable utilization and protection for biodiversity of Chen Lake wetland gave important contribution to improving the regional environment and sustainable development of Wuhan, and even the middle-lower Yangtze area.展开更多
The scalar of Japanese yew （Taxus cuspidata） population and the relationship between individual distribution and site factors were analyzed according to investigating data in 74 sample belts with a total sampled are...The scalar of Japanese yew （Taxus cuspidata） population and the relationship between individual distribution and site factors were analyzed according to investigating data in 74 sample belts with a total sampled area of 436.872 hm2 in Muling Nature Reserve. The result showed that the distribution rules of Japanese yew population were correlated to elevation, slope position, slope aspect and slope gradient. The optimal distribution range in elevation for the natural Japanese yew population is at the attitudes of 700-800 m. The amounts of Japanese yew individuals on shady slope were more than those on sunny slope. On top slope and mid-slope, the individual amounts of Japanese yew are more than those on toe slope. Most of Japanese yew individuals occurred on slope gradient of less than 15. The scalar of the population was decreased with the slope gradient increasing.展开更多
[Objective] The study was to analyze the forest landscape in Nanling Na- tional Nature Reserve to provide information for the protection of local forest ecosys- tems. [Method] With the documents of 1：10 000 topograph...[Objective] The study was to analyze the forest landscape in Nanling Na- tional Nature Reserve to provide information for the protection of local forest ecosys- tems. [Method] With the documents of 1：10 000 topographic maps, updated Forest Resource Inventory Data, based on the GIS platform and Fragstats software, the paper analyzed the patterns and heterogeneity of forest landscapes by adopting the landscape ecological theory and the method of landscape index. [Result] The forest landscape types, in terms of area occupation from large to small, are in the order of evergreen broad-leaved forest, coniferous mixed forest, evergreen and deciduous broad-leaved mixed forest, shrubs, mixed needle leaf forest, suitable land for forest deciduous broad-leaved forest and non-forest. [Conclusion] Overall, the Reserve had maintained sufficient forest landscape diversity with a low level fragmentation. The distribution of various types of forest landscape was extremely uneven, dominated by several types such as evergreen broad-leaved forest, coniferous forest, etc.展开更多
From the protection of Chinese white dolphin and living environment,and considering the industrial development in coastal areas,we put forward adjustment program for Jiangmen Chinese White Dolphin Provincial Nature Re...From the protection of Chinese white dolphin and living environment,and considering the industrial development in coastal areas,we put forward adjustment program for Jiangmen Chinese White Dolphin Provincial Nature Reserve. Meanwhile we analyzed the feasibility of this program by systematically focusing the effect of adjusted functional regions on Chinese white dolphin.展开更多
In the experiment, by taking Quercus engleriana Seem., Betula albo- sinensis Burk., Abies faxoniana Rehd. and Fargesia rufa Yi, in the vegetation restoration pattern area of Beichuan Nature Reserve as the research obj...In the experiment, by taking Quercus engleriana Seem., Betula albo- sinensis Burk., Abies faxoniana Rehd. and Fargesia rufa Yi, in the vegetation restoration pattern area of Beichuan Nature Reserve as the research objects, the study on the biomass models, the biomass distribution law of single plant and the growth rule of every organ of the four tree species was made. The results indicated that in the compositions of all of the species, the proportion of trunk biomass was the highest, while that of trunk biomass was the lowest, the proportions of branch and root biomasses varied depending on species; in the comparison of correlativity between the proportions of biomasses of all nutrition organs and biomass of single plant, the relations were generally significant, the tree trunks were positively related while the roots were negatively related; the proportion of trunk biomass of all species was significantly and negatively related to the proportions of leaf and branch biomasses, while the biomass of leaves was significantly and positively related to the biomass of branches.展开更多
The ecological environmental changes of Francois langur natural reserve was monitored during Pengshui Reservoir construction and influence of reservoir fil-ing on the habitat of the natural reserve was analyzed to pro...The ecological environmental changes of Francois langur natural reserve was monitored during Pengshui Reservoir construction and influence of reservoir fil-ing on the habitat of the natural reserve was analyzed to provide the scientific basis and basic data for scientific evaluation and protection of original ecological environ-ment of the natural reserve and Francois langur’s habitat, and vegetation recover. The results showed that 4.8 hm2 of the nature reserve was submerged after reser-voir fil ing, which occupied for 0.1% of total area of the natural reserve only. The main influence area was in the submerged area of Hongdu River basin. The water level rise resulted in partial changes in land utilization and soil erosion, which indi-cates that reservoir fil ing has insignificant effect on ecological environment of the whole natural reserve.展开更多
基金Conservation Technology for Endangered Wildlife Program, Social Service Project of the Ministry of Science and Technology (No. 2001DIB100058)National Key Project of 10th Five-Year Plan (No. 2001BA510B10).
文摘The Tibetan antelope （Pantholops hodgsonii）, indigenous to China, became an endangered species because of considerable reduction both in number and distribution during the 20th century. Presently, it is listed as an Appendix Ⅰ species by CITES and as Category I by the Key Protected Wildlife List of China. Understanding the genetic diversity and population structure of the Tibetan antelope is significant for the development of effective conservation plans that will ensure the recovery and future persistence of this species. Twenty-five microsatellites were selected to obtain loci with sufficient levels of polymorphism that can provide information for the analysis of population structure. Among the 25 loci that were examined, nine of them showed high levels of genetic diversity. The nine variable loci （MCM38, MNS64, IOBT395, MCMAL TGLA68, BM1329, BMSI341, BM3501, and MB066） were used to examine the genetic diversity of the Tibetan antelope （n = 75） in Hoh Xil National Nature Reserve（HXNNR）, Qinghai, China. The results obtained by estimating the number of population suggested that all the 75 Tibetan antelope samples were from the same population. The mean number of alleles per locus was 9.4 ± 0.5300 （range, 7-12） and the mean effective number of alleles was 6.519± 0.5271 （range, 4.676-9.169）. The observed mean and expected heterozygosity were 0.844 ± 0.0133 （range, 0.791-0.897） and 0.838 ± 0.0132 （range, 0.786-0.891）, respectively. Mean Polymorphism Information Content （PIC） was 0.818 ± 0.0158 （range, 0.753-0.881）. The value of Fixation index （Fis） ranged from -0.269 to -0.097 with the mean of -0.163 ± 0.0197. Mean Shannon＇s information index was 1.990 ± 0.0719 among nine loci （range, 1.660-2.315）. These results provide baseline data for the evaluation of the level of genetic variation in Tibetan antelope, which will be important for the development of conservation strategies in future.
文摘Surveys was conducted to study the population density and habitat utilization of the ibex （Capra ibex） in Tomur National Nature Reserve during October- December 2005. The results are as follows： ① The mean group size of the ibex in Tomur Nature Reserve is 8.43 and the population density is 269.76/100 km^2; ② The ibex prefer areas with steep slope （between 30° -45°）, broken substrates and cliffs nearby （ 〈 100 m）. They avoid grasslands and fiat hillsides; ③The probable reason for this habitat selection is serf-protection.
文摘Guizhou golden monkey (Phinopithecus roxellanae brelichi) is a peculiar, rare and endangered species. It is dis-tributed most narrowly and requires a rigorous habitat. In this study the habitats of Guizhou Golden Monkey were divided into three habitats: most suitable habitats, suitable habitats and marginally suitable habitats. The characteristics of the vegetation community, environmental factors and extreme environmental factors in the three habitats were systematically analyzed. The seasonal activity rule, activity area and the food characteristic of Guizhou golden monkey were also study at the same time. The results indicate that the evergreen and deciduous broadleaf mixed forest is the optimal living vegetation community for Guizhou golden Monkey, and the suitable annual temperature is 8-15 C, the extremely lowest temperature is 2.5 C, the extremely highest temperature is 25 C, and the optimal living altitude is 1500-1700 m. In the same area, the higher the vegetation diversity, the more suitable it is for the life of Guizhou golden monkey. Temperature and food are the main habitat factors in determining the activity scope of the guizhou golden monkey community. The Altitude, temperature and the characteristics of the vegetation community are the main limiting factors for habitat selection.
文摘[ Objective] The study was to understand the changes of amylase（AMY） and superoxide dismutase（SOD） isozymes during the ger- mination process of Emmenopterys henryi Oliv seeds. [ Metbod] By employing polyacrylamide gel electrophoresis method, the expressions of AMY and SOD isozymes during seed germination process were analyzed. ~ Result] The main AMY bands remained strong during the whole peri- od and a new band A2 appeared in the middle and late period of seed germination. Some new SOD bands occurred at the early stage, then be- came weak or disappeared in the middle period, and band S6 became intense in the late peried. [ Conclusion.] The expression of AMY and SOD isozyme gene has temporal difference during germination of E. henryi Oliv seeds.
文摘Population estimates of black crested gibbons in Wuliang Nature Reserve,Jingdong,Yunnan,China,with two techniques,average group density total area and average home rang forest coverage,produced quite similar results.The population was estimated around 115 groups in the Reserve.The paper also discussed the conservation problems of the Reserve.At present,the main threat to the gibbons is habitat fragmentation and population isolation.Thus,it is urgent to prohibit hunting and protect the habitat and forest corridors or habitat bridges.
文摘lbex （Capra ibex）, a first grade protected animal, has not been well studied in China. Surveys were conducted to investigate the distribution of the ibex in the Tomur National Nature Reserve during October--November 2004, July 2005, and October-December 2005. The results were as follows： （1） Out of five valleys, the ibex was distributed in the Qiong-Tailan, Keqik-Tailan, and Muzart Valleys： （2） Ibexes were not observed in the Tomur Valley and Kuzbayi Valley in our surveys, but interview investigations indicated that they may be found here as well. Our results indicated that the nature reserve as a whole is in the distribution range of ibex and it plays an important role in protecting ibex and the alpine biodiversity. However, the uneven distribution pattern can be due to human activities. Therefore, the management of the reserve needs to be improved in the future.
文摘Plant diversity, animal diversity and ecosystem diversity in the wetland were studied with field investigation and statistical analysis, and then biodiversity of Chen Lake wetland was also valued. The results showed that the reasonable utilization and protection for biodiversity of Chen Lake wetland gave important contribution to improving the regional environment and sustainable development of Wuhan, and even the middle-lower Yangtze area.
基金This work was supported by Northeast Forestry University fund Program from Science and Technology Department of Heilongjiang Province (LC05C14)
文摘The scalar of Japanese yew （Taxus cuspidata） population and the relationship between individual distribution and site factors were analyzed according to investigating data in 74 sample belts with a total sampled area of 436.872 hm2 in Muling Nature Reserve. The result showed that the distribution rules of Japanese yew population were correlated to elevation, slope position, slope aspect and slope gradient. The optimal distribution range in elevation for the natural Japanese yew population is at the attitudes of 700-800 m. The amounts of Japanese yew individuals on shady slope were more than those on sunny slope. On top slope and mid-slope, the individual amounts of Japanese yew are more than those on toe slope. Most of Japanese yew individuals occurred on slope gradient of less than 15. The scalar of the population was decreased with the slope gradient increasing.
基金Supported by Digital Monitoring and Management Platform Project in Nanling National Nature Reserve(GDHS13SGHG05025)~~
文摘[Objective] The study was to analyze the forest landscape in Nanling Na- tional Nature Reserve to provide information for the protection of local forest ecosys- tems. [Method] With the documents of 1：10 000 topographic maps, updated Forest Resource Inventory Data, based on the GIS platform and Fragstats software, the paper analyzed the patterns and heterogeneity of forest landscapes by adopting the landscape ecological theory and the method of landscape index. [Result] The forest landscape types, in terms of area occupation from large to small, are in the order of evergreen broad-leaved forest, coniferous mixed forest, evergreen and deciduous broad-leaved mixed forest, shrubs, mixed needle leaf forest, suitable land for forest deciduous broad-leaved forest and non-forest. [Conclusion] Overall, the Reserve had maintained sufficient forest landscape diversity with a low level fragmentation. The distribution of various types of forest landscape was extremely uneven, dominated by several types such as evergreen broad-leaved forest, coniferous forest, etc.
基金Support by Key Project in Marine Science and Technology of Guangdong (No.A20099E01)Guangdong Provincial 908 Project ( No.GD908-02-05)~~
文摘From the protection of Chinese white dolphin and living environment,and considering the industrial development in coastal areas,we put forward adjustment program for Jiangmen Chinese White Dolphin Provincial Nature Reserve. Meanwhile we analyzed the feasibility of this program by systematically focusing the effect of adjusted functional regions on Chinese white dolphin.
基金Supported by the Restoring&Reconstruction Project of Giant Panda Habitat after the Wenchuan Earthquake in Beichuan Qiang Minority Autonomous County~~
文摘In the experiment, by taking Quercus engleriana Seem., Betula albo- sinensis Burk., Abies faxoniana Rehd. and Fargesia rufa Yi, in the vegetation restoration pattern area of Beichuan Nature Reserve as the research objects, the study on the biomass models, the biomass distribution law of single plant and the growth rule of every organ of the four tree species was made. The results indicated that in the compositions of all of the species, the proportion of trunk biomass was the highest, while that of trunk biomass was the lowest, the proportions of branch and root biomasses varied depending on species; in the comparison of correlativity between the proportions of biomasses of all nutrition organs and biomass of single plant, the relations were generally significant, the tree trunks were positively related while the roots were negatively related; the proportion of trunk biomass of all species was significantly and negatively related to the proportions of leaf and branch biomasses, while the biomass of leaves was significantly and positively related to the biomass of branches.
基金Supported by Guizhou Science and Technology Foundation[(2007)2164]Guizhou Science and Technology Plan Project[(2012)3058]~~
文摘The ecological environmental changes of Francois langur natural reserve was monitored during Pengshui Reservoir construction and influence of reservoir fil-ing on the habitat of the natural reserve was analyzed to provide the scientific basis and basic data for scientific evaluation and protection of original ecological environ-ment of the natural reserve and Francois langur’s habitat, and vegetation recover. The results showed that 4.8 hm2 of the nature reserve was submerged after reser-voir fil ing, which occupied for 0.1% of total area of the natural reserve only. The main influence area was in the submerged area of Hongdu River basin. The water level rise resulted in partial changes in land utilization and soil erosion, which indi-cates that reservoir fil ing has insignificant effect on ecological environment of the whole natural reserve.
