期刊文献+
共找到221篇文章
< 1 2 12 >
每页显示 20 50 100
Home range,population density,and habitat utilization of the Sichuan Jay (Perisoreus internigrans) 被引量:1
1
作者 经宇 吕楠 +1 位作者 方昀 孙悦华 《Chinese Birds》 2011年第2期94-100,共7页
We assessed habitat preference and population status of the Sichuan Jay (Perisoreus internigrans),a poorly known Chinese endemic bird,at two sites (Zhuoni and Jiuzhaigou) in the Qinghai-Tibetan plateau between 2001 an... We assessed habitat preference and population status of the Sichuan Jay (Perisoreus internigrans),a poorly known Chinese endemic bird,at two sites (Zhuoni and Jiuzhaigou) in the Qinghai-Tibetan plateau between 2001 and 2004.Mean group size was 3.8 jays.Each group occupied a mean home range of 42.0 ha during the breeding season,and the mean internest distance was 2.7 km.These data indicated that the jays used less than ten percent of the available habitats and occurred at an overall density of only 0.6 jays per km2.Radio-tracked Sichuan Jays had a strong preference for mature montane coniferous forests and avoided areas dominated by shrubs,while the utilization of young conifers,grassland,and human residential habitat types did not differ significantly from the values expected from the home-range availabilities of these habitats generally. 展开更多
关键词 Sichuan Jay Qinghai-Tibetan plateau home range population density habitat utilization
下载PDF
A new methodology for computing birds' 3D home ranges 被引量:1
2
作者 Alessandro Ferrarini Giuseppe Giglio +2 位作者 Stefania Caterina Pellegrino Anna Grazia Frassanito Marco Gustin 《Avian Research》 CSCD 2018年第2期168-173,共6页
Background: So far, studies of avian space use are mostly realized in 2D, with the vertical dimension ignored. We propose here a new, relatively simple and computationally reasonable method for the estimation of volu... Background: So far, studies of avian space use are mostly realized in 2D, with the vertical dimension ignored. We propose here a new, relatively simple and computationally reasonable method for the estimation of volumetric (i.e. 3D) avian home ranges.Methods: Through accurate GPS data-loggers, we collected 25,405 GPS points on Lesser Kestrels' (Fdlco noumonni) space use during the nestling period in one main colony in Italy.We applied our 3D home range estimator to the whole GPS dataset, and also separately to diurnal and nocturnal GPS points.Results: The 3D colony home range resulted equal to 28.12 km3. By considering daytime and night-time separately, the volumetric home ranges resulted considerably different.Conclusions: Our 3D home range estimator, because of its intuitive and straightforward properties, can easily capi-talize on the datasets offered by modern biotelemetry (data-loggers, light detection and LIDAR sensors) and enhance conservation strategies for mitigating anthropogenic impacts on bird species. Its applications embrace, but are not limited to, more accurate estimates of collision risk with power lines, aircrafts and wind farms, and increased knowledge of birds'space requirements in order to persist in their distribution areas. 展开更多
关键词 Avian space use BIOTELEMETRY GPS data-loggers Vertical dimension Volumetric home range
下载PDF
Factors Influencing Home Ranges of the Qinghai Toad-headed Lizard(Phrynocephalus vlangalii)on the Dangjin Mountain,Gansu
3
作者 Xiaolong ZHAO Wei YU +2 位作者 Zeyu ZHU Yuxia YANG Zhigao ZENG 《Asian Herpetological Research》 SCIE CSCD 2022年第2期137-144,共8页
Home range is an important ecological parameter reflecting the suita bility of animal habitats.To study the size and factors influencing the home ranges of the Qinghai toad-headed lizard(Phr ynocephalus vlangalii)in d... Home range is an important ecological parameter reflecting the suita bility of animal habitats.To study the size and factors influencing the home ranges of the Qinghai toad-headed lizard(Phr ynocephalus vlangalii)in different habitats,from July to September 2020,we radio-tagged and tracked 15 individuals in each of sites distributed at high(3600 m)and low(2600 m)altitudes on the Dangjin Mountain,Gansu Province,northwest China.We calculated home range size using the 100%minimum convex polygon method,and analyzed the influence of inherent lizard characteristics and external environmental factors.Our results revealed that for both high-and lowaltitude lizard populations,the sizes of home ranges were positively correlated with lizard body mass.Moreover,after eliminating the effect of body mass as a covariable,we established that the home ranges of high-altitude lizards(5255.1±1103.8 m^(2))were larger than those of the low-altitude lizards(2208.1±348.7 m^(2)).Lizards in the high-altitude population were also characterized by longer daily suitable activity times and spent significantly more time in full sunlight than those in the low-altitude population.Furthermore,the food resources for lizards in low-altitude habitats were more abundant than those in high-altitude habitats In conclusion,we established that P.vlangalii lizards inhabiting high-altitude sites had larger home ranges than conspecific lizards distributed at a lower altitude,which was associated not only with endogenous factors,such as body mass,but also with habitat-related environmental factors,such as the quality of thermal resources and availability of food. 展开更多
关键词 home range influence factor plateau lizard radio tracking
下载PDF
Approximating home ranges of humpback and fin whales in Drake Passage and Antarctica
4
作者 JoséLuis ORGEIRA Facundo ALVAREZ 《Advances in Polar Science》 CSCD 2020年第4期248-257,共10页
Identifying home ranges—those areas traversed by individuals in their normal foraging,mating,and parenting activities—is an important aspect of cetacean study.Understanding these ranges facilitates identification of... Identifying home ranges—those areas traversed by individuals in their normal foraging,mating,and parenting activities—is an important aspect of cetacean study.Understanding these ranges facilitates identification of resource use and conservation.Fin and humpback whales occur in Antarctica during the austral summer,but information regarding their home ranges is limited.Using opportunistically collected whale sighting data from eight consecutive summer seasons spanning 2010–2017,we approximate the home ranges of humpback and fin whales around Drake Passage(DRA),West of Antarctic Peninsula(WAP),South Shetland Islands(SSI),an area northwest of the Weddell Sea(WED),and around the South Orkney Islands(SOI).Approximate home ranges are identified using Kernel Density Estimation(KDE).Most fin whales occurred north and northwest of the SOI,which suggests that waters near these islands support concentrations of this species.Most humpback whales were observed around the SSI,but unlike fin whales,their distributions were highly variable in other areas.KDE suggests spatial segregation in areas where both species exist such as SOI,SSI,and WPA.Partial redundancy analysis(pRDA)suggests that the distributions of these species are more affected by spatial variables(latitude,longitude)than by local scale variables such as sea surface temperature and depth.This study presents a visual approximation of the home ranges of fin and humpback whales,and identifies variation in the effects of space and environmental variables on the distributions of these whales at different spatial scales. 展开更多
关键词 humpback whale fin whale home range ANTARCTICA Drake Passasge
下载PDF
A new general index of home range overlap and segregation:the Lesser Kestrel in Southern Italy as a case study
5
作者 Alessandro Ferrarini Giuseppe Giglio +1 位作者 Stefania Caterina Pellegrino Marco Gustin 《Avian Research》 CSCD 2021年第1期108-117,共10页
Background:There is increasing interest in evaluating home-range overlap(or,otherwise,segregation)between bird species,and between or within bird populations,to inform spatial planning.So far,studies of home-range ove... Background:There is increasing interest in evaluating home-range overlap(or,otherwise,segregation)between bird species,and between or within bird populations,to inform spatial planning.So far,studies of home-range overlap typically make use of comparisons between pairs of individuals,populations or species,and return a matrix of pairwise overlaps(e.g.,percent overlaps).However,when the number of individuals,populations or species to be compared is elevated,an overlarge overlap matrix is difficult to interpret from an ecological viewpoint.Methods:We propose here a new,conceptually simple and computationally efficient index(general overlap index;GOI)for the ready computation within GIS of home range overlap of an arbitrarily large number(i.e.,n≥2)of individuals,populations or species.Whatever the number of home ranges to be compared,GOI always returns a single score between 0 and 100.As a case study,we applied our index to 24,074 GPS points of 10 Lesser Kestrels(Falco naumanni)in order to estimate within-colony and between-colony overlaps in two neighboring colonies in Southern Italy.Results:Within-colony overlap was elevated for both colonies(96.41%at Cassano delle Murge,n=5 individuals;81.38%at Santeramo in Colle,n=5 individuals),while between-colony overlap was low(19.12%;n=2 colonies)and,after a randomization procedure,more spatially-segregated than expected by chance.Conclusions:Modern biotelemetry offers huge amounts of data describing the space use of animal species.The use of intuitive and straightforward indices,like GOI,can be useful to promptly extract ecological information from such an amount of data(e.g.detecting change in space use over successive years,evaluating the reliability of various home-range estimators). 展开更多
关键词 Between-colony overlap Falco naumanni home range randomization Overlap estimator Spatial segregation Within-colony overlap
下载PDF
Home range variation of two different-sized groups of golden snub-nosed monkeys(Rhinopithecus roxellana) in Shennongjia, China: implications for feeding competition 被引量:3
6
作者 Peng-Lai Fan Yi-Ming Li +4 位作者 Craig B.Stanford Fang Li Ze-Tian Liu Kai-Hua Yang Xue-Cong Liu 《Zoological Research》 SCIE CAS CSCD 2019年第2期121-128,共8页
Knowledge on the home range size of a species or population is important for understanding its behavioral and social ecology and improving the effectiveness of conservation strategies. We studied the home range size o... Knowledge on the home range size of a species or population is important for understanding its behavioral and social ecology and improving the effectiveness of conservation strategies. We studied the home range size of two different-sized groups of golden snub-nosed monkeys(Rhinopithecus roxellana) in Shennongjia, China. The larger group(236 individuals)had a home range of 22.5 km2 from September2007 to July 2008, whereas the smaller group(62 individuals) occupied a home range of 12.4 km2 from November 2008 to July 2009. Both groups exhibited considerable seasonal variation in their home range size, which was likely due to seasonal changes in food availability and distribution. The home range in any given season(winter, spring, summer, or winter+spring+summer) of the larger group was larger than that of the smaller group. As the two groups were studied in the same area, with the confounding effects of food availability thus minimized, the positive relationship between home range size and group size suggested that scramble feeding competition increased within the larger group. 展开更多
关键词 RHINOPITHECUS ROXELLANA home range SIZE Group SIZE Feeding competition
下载PDF
Spring home range and social behavior of Hazel grouse at Changbai Mountain
7
作者 孙悦华 方云 《Journal of Forestry Research》 SCIE CAS CSCD 1998年第3期199-202,共4页
The spring home range and social behavior of Hazel grouse, (Bonasa bonasia) were studied at Changbai Mountain using radiotelemetry in 1993–94. Flock dissolution and pair formation started in mid-March. Paired males h... The spring home range and social behavior of Hazel grouse, (Bonasa bonasia) were studied at Changbai Mountain using radiotelemetry in 1993–94. Flock dissolution and pair formation started in mid-March. Paired males held territories in spring, the area was from 3.2 hm2 to 17.3 hm2 (n=2). Hazel grouse was proved to be monogamous by radiotelemetry work. The overlap of home range between paired No.10 and No.8 was 82.4%. The time of birds being together was 83.0% of the time during the prelaying period (n=53), showing that the pair bond was stable. Unpaired males showed different behavior, held a territory or wandering, and they changed their behavior in early May. The study suggested that unpaired males gave up their reproduction goal, and the acquisition for survival became more important in early May, when female started incubation. 展开更多
关键词 Hazel GROUSE SPRING home rangE SOCIAL behavior Changbai MOUNTAIN
下载PDF
Movements and home range of a common species of tree-shrew,Tupaia glis,surrounding houses of otoacariasis cases in Kuantan,Pahang,Malaysia
8
作者 Mariana A Shukor MN +2 位作者 Muhd Norhazizi H Intan Nurlemsha B Ho TM 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2010年第6期427-434,共8页
Objective:To document movement patterns,home range,nesting behaviour and social organization of 5 individuals(3 males and 2 females) of a common species of tree-shrew,Tupaia glis(T.glis) surrounding houses of otoacari... Objective:To document movement patterns,home range,nesting behaviour and social organization of 5 individuals(3 males and 2 females) of a common species of tree-shrew,Tupaia glis(T.glis) surrounding houses of otoacariasis cases.Methods:Each shrew was fitted with a transmitter chip radio-collar which operates between the frequencies of 154.13 MHz to 154.21 MHz.Each transmitter was then tracked with a Portable Telemetry Receiver(Sirtrack,New Zealand) fitted with a 3-element Yagi antenna.Collared shrews were located using standard methods of ground-based triangulation.Each location was taken from at least 2 directional fixes and a minimum of 3 compass bearings.Fixes were taken hourly for each collared individual from the time of emergence from nest(beginning of activity) till time of entry into the nest(end of activity) every day for 5 to 7 continuous days.Three series of radio telemetry observations were carried out.The bearings,time and positions of an observer were recorded and later plotted on a graph paper in order to derive coordinates of the collared animal.[These coordinates then analyzed using Ecological Software Solutions(Biotas Version 1.03)].Results:Nests were found in a jack fruit tree,long bushes,and 2 houses.Daily telemetry detections demonstrated 2 individuals of different sex having nests(or a nest) in the same house.All shrews emerged from and returned to their nests between 0601 to 0659 hours and 1901 to 1959 hours,respectively. Both the time of exit from and entry into nest were the same between sexes(P】0.05).Their average total active period was 4.90 to 7.00 hours with a total daily travel distant of 270 m to 382 m.A male and a female shrew can move as far as 3 285 m and 4 591 m,respectively.Active movements of T.glis were during daytime.They regularly entered some houses in the area during day and night except for one individual which visited during daytime only.The sizes of home range and core area for the shrews were 2.00-3.40 ha and 0.05-0.42 ha,respectively.Generally, the mean home range size of females was 20.8%larger than that of males.Females covered a 15.4%slightly higher daily movement range compared to males.Conclusions:This is the first radio telemetry study in Malaysia to monitor movements and home range of shrews carrying ticks on their body.It demonstrates that shrews are potential carriers of ticks from wild into the houses and their compounds based on their total active periods spent moving around from fruit orchards, secondary forest,plantations and other vegetations to trees in compound of 4 to 7 houses and vice versa.There are also evidences showing shrews have close contact with humans. 展开更多
关键词 Movements home range Tree-shrew Otoacariasis CASES MALAYSIA
下载PDF
Home range and seasonality of Yunnan snub-nosed monkeys 被引量:5
9
作者 Baoping REN Ming LI +2 位作者 Yongcheng LONG Ruidong WU Fuwen WEI 《Integrative Zoology》 SCIE CSCD 2009年第2期162-171,共10页
Home range studies are essential for understanding an animal’s behavioral ecology and for making wildlife conservation efficient.The home range of a group of Yunnan snub-nosed monkeys(Rhinopithecus bieti Milne-Edward... Home range studies are essential for understanding an animal’s behavioral ecology and for making wildlife conservation efficient.The home range of a group of Yunnan snub-nosed monkeys(Rhinopithecus bieti Milne-Edwards,1897)was estimated using a global positioning system collar from December 2003 to October 2004 in northern Yunnan Province,China.To measure the ranging area of the study group 1291 animal locations were fixed.Based on the 100%minimum convex polygon method,the home range size was approximately 32.8 km2;based on the grid-cell method it was approximately 17.8 km2 using a 250-m grid and 23.3 km2 using a 500-m grid.We assessed seasonal changes in the home range of this monkey population and found a different ranging pattern of from earlier studies.Daily range size was calculated as 4.80±5.81 ha(mean±standard deviation),with a range of 45.66 ha(0.01–45.67 ha). 展开更多
关键词 COLLAR CONSERVATION global positioning system home range Rhinopithecus bieti.
原文传递
Scale dependency of Liolaemus lizards' home range in response to different environmental variables 被引量:2
10
作者 Oscar Anibal STELLATELLI Carolina BLOCK +3 位作者 Debora Lina MORENO-AZOCAR Laura Estela VEGA Juan Pablo ISACCH Felix Benjamin CRUZ 《Current Zoology》 SCIE CAS CSCD 2016年第6期521-530,共10页
Animal habitat-use patterns cannot be isolated from scale issues. Consequently, multi-scale studies provide a complete characterization of ecological patterns that can further explain the observed variation. Liolaemus... Animal habitat-use patterns cannot be isolated from scale issues. Consequently, multi-scale studies provide a complete characterization of ecological patterns that can further explain the observed variation. Liolaemus constitutes the world's second most speciose lizard genus. In this study, we assessed the relationships between home range size and environmental variables at 3 different spatial scales. The study at a local and regional scale was focused on the habitat specialist Liolaemus multimaculatus. The lizard's home range was calculated using the minimum convex polygon method in populations from grassland sites of the coastal sand dunes of the Argentinean Pampas under 2 different conditions, with or without forestations of Acacia Iongifolia. On the other hand, at a geographical scale we considered the evolutionary implications of 20 species of Liolaemus. Home range size, phylogeny, ecological, environmental, and climatic data were ob- tained from the literature and remote sensing. L. multimaculatus home range varied from 12.66 to 570.00 m. Regionally, this species had smaller home ranges in forested habitats (X: 94.02 m2) com- pared with the non-forested sites (X: 219.78m2). Habitat structure, vegetation types, and food availability would explain the space use at finer scales. When the 20 species of Liolaernus were considered, high mean air temperature and broad thermal amplitudes showed an inverse relationship with home range size. Neither net primary productivity nor phylogeny was good predictors for home range variation at geographical scale. This study highlights the scale dependence of the explicative capability of a set of environmental and intrinsic variables on home range patterns. 展开更多
关键词 environmental factors home range Liolaemus LIZARD scales
原文传递
Home range variability,spatial aggregation,and excursions of Akodon azarae and Oligoryzomys flavescens in Pampean agroecosystems 被引量:1
11
作者 Irene GOROSITO Ailén BENÍTEZ Maria BUSCH 《Integrative Zoology》 SCIE CSCD 2020年第5期401-415,共15页
Rodents are reservoirs of various types of hantavirus,some of which are agents of hantavirus pulmonary syndrome in humans.Each hantavirus is associated with a single rodent host species but successive spill-over event... Rodents are reservoirs of various types of hantavirus,some of which are agents of hantavirus pulmonary syndrome in humans.Each hantavirus is associated with a single rodent host species but successive spill-over events may eventually lead to host-switching and new species’becoming host of a given pathogen.This study aims to gain an understanding of the spatial ecology of two hantavirus-host species,Akodon azarae,and Oligoryzomys flavescens,by identifying factors modulating their home range sizes and stability,and by evaluating intra-and interspecific spatial aggregation for these species and a third one—Oxymycterus rufus—living in sympatry.For this,eleven capture-mark-recapture surveys were carried out,spanning 22 months.We found that A.azarae males have larger and more mobile home ranges than females,independently of the season.Consequently,males could likely have a more relevant role in the transmission of hantavirus because of their greater exposure both to a higher number of contacts between individuals and viral contamination of the environment.Contrasting,O.flavescens individuals showed negligible displacements of their home range through time,which could limit the range of hantavirus spread in host populations.Since O.flavescens is host to Lechiguanas hantavirus(pathogenic to humans)this result encompasses epidemiological relevance,for it may imply the existence of local foci of infection.Additionally,individuals of both species performed excursions outside their home ranges.These events could enable hantavirus spread over distances beyond the normal range of movements and lead to new hantavirus outbreaks in formerly non-infected rodent populations,favoring the persistence of the virus in nature. 展开更多
关键词 HANTAVIRUS home range intra-and interspecific contact RODENT spatial ecology
原文传递
Effects of study area size on home range estimates of common bottlenose dolphins Tursiops truncatus
12
作者 Samantha R. NEKOLNY Matthew DENNY +6 位作者 George BIEDENBACH Elisabeth M, HOWELLS Marilyn MAZZOIL Wendy N. DURDEN Lydia MORELAND J. DAVID LAMBERT Quincy A, GIBSON 《Current Zoology》 SCIE CAS CSCD 2017年第6期693-701,共9页
Knowledge of an animal's home range is a crucial component in making informed management decisions. However, many home range studies are limited by study area size, and therefore may underestimate the size of the hom... Knowledge of an animal's home range is a crucial component in making informed management decisions. However, many home range studies are limited by study area size, and therefore may underestimate the size of the home range. In many cases, individuals have been shown to travel outside of the study area and utilize a larger area than estimated by the study design. In this study, data collected by multiple research groups studying bottlenose dolphins on the east coast of Florida were combined to determine how home range estimates increased with increasing study area size. Home range analyses utilized photo-identification data collected from 6 study areas throughout the St Johns River (S JR; Jacksonville, FL, USA) and adjacent waterways, extending a total of 253km to the southern end of Mosquito Lagoon in the Indian River Lagoon Estuarine System. Univariate kernel density estimates (KDEs) were computed for individuals with 10 or more sightings (n= 20). Kernels were calculated for the primary study area (S JR) first, then additional kernels were calculated by combining the S JR and the next adjacent waterway; this continued in an additive fashion until all study areas were included. The 95% and 50% KDEs calculated for the S JR alone ranged from 21 to 35 km and 4 to 19 kin, respectively. The 95% and 50% KDEs calculated for all combined study areas ranged from 116 to 217 km and 9 to 70 km, respectively. This study illustrates the degree to which home range may be underestimated by the use of limited study areas and demonstrates the benefits of conducting collaborative science. 展开更多
关键词 bottlenose dolphin core area home range kernel analysis.
原文传递
Home ranges and habitat vegetation characters in breeding season of Narcissus Flycatcher and Yellow-rumped Flycatcher
13
作者 WANG Ning ZHANG Yanyun ZHENG Guangmei 《Frontiers in Biology》 CSCD 2007年第3期345-350,共6页
The home ranges of the Narcissus Flycatcher(Ficedula narcissina elisae)and the Yellow-rumped Fly-catcher(F.zanthopygia)are measured by radio telemetry in a subalpine forest near Beijing,China.The home range is calcula... The home ranges of the Narcissus Flycatcher(Ficedula narcissina elisae)and the Yellow-rumped Fly-catcher(F.zanthopygia)are measured by radio telemetry in a subalpine forest near Beijing,China.The home range is calculated by 100%Minimum Convex Polygon(MCP),and the area varies from 2,000 to 5,000 m2.The majority of fly-catchers can be found in the bottom of valleys and the under-side of mountains.It is fairly rare for both Flycatcher species to leave their nests more than 70 m.Individuals of the species in pair-banding and nest-detecting periods have larger home ranges than those in incubation and rearing periods.The levels of canopy coverage in the home ranges of Narcissus Flycatchers are significantly higher than that of Yellow-rumped Flycatchers.There are also more tall trees and stumps in the home ranges of Narcissus Flycatchers than in that of Yellow-rumped Flycatchers.The dominant tree species in the home ranges of Narcissus Flycatchers is Dahurian Birch(Betula dahurica),whereas Manchurian Walnut(Juglans mandshurica)is the dominant tree species in the home ranges of Yellow-rumped Flycatchers. 展开更多
关键词 NarcissusFlycatcher Yellow-runpdeFlycatcher RADIOTELEMETRY home range HABITAT
原文传递
Home range and habitat use of male Reeves’s Pheasant(Syrmaticus reevesii)during winter in Dongzhai National Nature Reserve,Henan Province,China
14
作者 Xu Jiliang Zhang Xiaohui +4 位作者 Zhang Zhengwang Zheng Guangmei Ruan Xiangfeng Zhang Keyin Xi Bo 《Frontiers in Biology》 CSCD 2006年第2期174-181,共8页
Home range and habitat use of male Reeves’s pheasant(Syrmaticus reevesii)were studied during winter of 2001~2002 and 2002~2003 in the Dongzhai National Nature Reserve,Henan Province.Results from five individuals of R... Home range and habitat use of male Reeves’s pheasant(Syrmaticus reevesii)were studied during winter of 2001~2002 and 2002~2003 in the Dongzhai National Nature Reserve,Henan Province.Results from five individuals of Reeves’s pheasant with over 30 relocations,indicated that the average size of home range was 10.03±1.17 hm^(2) by Minimum Convex Polygon method,8.60±0.35 hm^(2) by 90%Harmonic Mean Transformation method,and 9.50±1.90 hm^(2) by 95%Fixed Kernel method.It was observed that the winter range is smaller than that in the breeding season.The mean core area of the home range was found to be 1.88±0.37 hm^(2).Although the habitat composition of the core area varied greatly for individuals,a large part of the habitats used were composed of conifer and broadleaf mixed forests,masson pine forests,fir forests,and shrubs.Habitat use within the study area was non-random,while habitats within home ranges were randomly used.Habitat use was dictated by tree diameter at breast height,shrub height and coverage at 2.0 m.The proximity between forests and shrubs were also found to be important in providing refuge for the birds during winter.Recommendations for conservation management include protecting the existing habitats in Dongzhai National Nature Reserve,increasing suitable habitat for Reeves’s Pheasant through artificial plantations(e.g.firs),and restoring some parts of the large shrub area into forests. 展开更多
关键词 Syrmaticus reevesii home range habitat use WINTER Dongzhai
原文传递
2019-2023年南京长江江豚种群动态 被引量:1
15
作者 陈炳耀 姜新月 +5 位作者 刘杉 张俊 郝秀青 朱林 李婷 陈力文 《南京师大学报(自然科学版)》 CAS 北大核心 2024年第2期54-62,共9页
南京是长江干流中长江江豚分布最密集的水域之一,一直受到广泛关注,但是种群动态仍不清楚.2019—2023年,研究团队在南京长江江豚省级自然保护区水域持续开展了长江江豚的监测工作.本文分析了南京长江江豚的分布、家域及种群数量的动态变... 南京是长江干流中长江江豚分布最密集的水域之一,一直受到广泛关注,但是种群动态仍不清楚.2019—2023年,研究团队在南京长江江豚省级自然保护区水域持续开展了长江江豚的监测工作.本文分析了南京长江江豚的分布、家域及种群数量的动态变化,通过112 d(56次)野外船只调查,发现江豚274次.平均最近邻工具检验表明江豚呈现聚集型分布,主要出现在潜洲-江心洲-三桥和子汇洲-新济洲等两个水域.最小凸多边形MCP、95%核心密度法KDE和50%KDE家域面积分别为50.86 km^(2)、135.54 km^(2)和60.81 km^(2),2022年KDE最大,秋季要高于其他季节.2019—2023年南京段长江江豚年平均数量分别为52头、60头、57头、62头和65头,呈现年际间的增长态势,冬季高于其他季节.种群数量的增长可能是实施“长江大保护”、“十年禁渔”、长江江豚拯救行动计划等保护措施的结果. 展开更多
关键词 长江江豚 分布模式 南京保护区 家域 种群数量
下载PDF
Activity Pattern and Habitat Use of Shorebirds in an Artificial Wetland Complex:A Case Study of Breeding Pied Avocet in the Yellow River Delta,China
16
作者 LI Dong LI Bin +4 位作者 XU He FAN Chao WU Yang ZHANG Yuxin HOU Xiyong 《Chinese Geographical Science》 SCIE CSCD 2024年第4期618-630,共13页
With the loss of substantial natural wetlands in coastal zones,artificial wetlands provide alternative habitats for many shorebirds.Scientific management of artificial wetlands used by shorebirds plays an important ro... With the loss of substantial natural wetlands in coastal zones,artificial wetlands provide alternative habitats for many shorebirds.Scientific management of artificial wetlands used by shorebirds plays an important role in maintaining the stability of shorebird population.Satellite tracking technique can obtain high-precision location information of individuals day and night,providing a good technical support for the study of quantitative relationship between waterfowls and their habitats.In this study,satellite tracking method,Remote Sensing(RS)and Geographic Information System(GIS)technology were used to analyze the activity pattern and habitat utilization characteristics of Pied Avocet during breeding period in an artificial wetland complex in the Yellow River Delta(YRD),China.The results showed that the breeding Pied Avocets had a small range of activity,with a total core and main home range of 33.10 km^(2) and 216.30 km^(2),respectively.This species tended to forage in the pond and salt pan during the day and night,respectively,with an unfixed staying time in the breeding ground.The distance between breeding ground and feeding ground was less than 6 km.It is emphasized that in addition to improving the conditions of the remaining natural habitats,effective managing artificial habitats is a priority for shorebird conservation.This research could provide reference for the management of artificial wetlands in coastal zones and supply technique support for the protection of shorebirds and their habitats,and alleviate human-bird conflicts and sustainable development of coastal zones. 展开更多
关键词 satellite tracking home range habitat use artificial wetland coastal zone Pied Avocet Yellow River Delta China
下载PDF
野化放归丹顶鹤活动节律、家域特征和栖息地选择 被引量:1
17
作者 陈浩 王刚 +3 位作者 王成 薛菲 成海 张亚楠 《生态学报》 CAS CSCD 北大核心 2024年第4期1526-1538,共13页
了解野放丹顶鹤的运动模式、家域和栖息地选择的时间节律特征对丹顶鹤种群保护和栖息地管理尤为重要。基于GPS-GSM跟踪数据,综合运用3S技术、动态布朗桥模型、栖息地选择指数,研究了盐城海滨湿地野放丹顶鹤在不同生活周期的活动节律、... 了解野放丹顶鹤的运动模式、家域和栖息地选择的时间节律特征对丹顶鹤种群保护和栖息地管理尤为重要。基于GPS-GSM跟踪数据,综合运用3S技术、动态布朗桥模型、栖息地选择指数,研究了盐城海滨湿地野放丹顶鹤在不同生活周期的活动节律、家域的面积和重叠指数,以及栖息地选择。结果表明:(1)丹顶鹤日活动节律具有明显的周期性特征。丹顶鹤活动强度:育成期>越冬期>孵化期>育雏期,孵化期和育雏期日间活动强度平稳,育成期和越冬期呈“双峰”模式。(2)丹顶鹤95%家域面积均值介于(111.18±22.15)hm^(2)-(621.28±105.77)hm^(2),育成期((621.28±105.77)hm^(2))>育雏期((226.83±54.86)hm^(2))>孵化期((112.40±7.72)hm^(2))>越冬期((111.18±22.15)hm^(2));核心家域面积均值介于(0.53±0.26)-(45.78±6.66)hm^(2),育成期((45.78±6.66)hm^(2))>育雏期((12.73±3.67)hm^(2))>越冬期((5.18±1.59)hm^(2))>孵化期((0.53±0.26)hm^(2))。不同生活周期家域重叠值为31.08%-46.84%,不同年份重叠值为29.20%-76.21%。(3)家域尺度内,栖息地选择率具有周期性差异。孵化期选择中高覆盖度芦苇生境;育雏期选择水塘生境、中高覆盖度生境以及距水塘潮沟100 m以内生境;育成期选择水塘生境、低和中低覆盖度生境以及距离水塘0-100 m生境;越冬期选择水塘生境、中高覆盖度生境以及距水塘0-100 m生境。研究可为丹顶鹤种群保护和栖息地管理提供科学依据。 展开更多
关键词 丹顶鹤 活动节律 家域 栖息地选择 盐城海滨湿地
下载PDF
贺兰山岩羊活动节律与家域特征
18
作者 崔爽 胡天华 +4 位作者 余梦琦 梁咏亮 李岳诚 郭松涛 刘振生 《野生动物学报》 北大核心 2024年第3期480-489,共10页
野生动物的活动节律和家域特征是其为适应内外环境变化而形成的生存模式,研究活动节律和家域特征有助于深入了解野生动物生态适应性,维护生态平衡,并有助于制定科学保护策略。因此,基于北斗卫星追踪项圈监测技术,深入研究了贺兰山岩羊(P... 野生动物的活动节律和家域特征是其为适应内外环境变化而形成的生存模式,研究活动节律和家域特征有助于深入了解野生动物生态适应性,维护生态平衡,并有助于制定科学保护策略。因此,基于北斗卫星追踪项圈监测技术,深入研究了贺兰山岩羊(Pseudois nayaur)全年的活动节律和家域特征,以及不同季节、性别的个体差异。研究表明:(1)岩羊属于晨昏性动物(06:00—10:00、16:00—20:00),4个季节均表现为双峰模式的日活动节律;(2)岩羊全年的活动速率为(0.17±0.51)km/h,且不同季节的活动速率存在显著差异(χ^(2)=133.48,df=3,p<0.05),冬季活动速率最高,为0.23 km/h;雌雄个体间活动速率存在边缘显著差异(Z=-1.913,p=0.056),雄性个体的活动速率高于雌性个体;(3)岩羊的家域和核域范围无明显季节性差异(家域,χ^(2)=1.623,df=3,p=0.654;核域,χ^(2)=0.727,df=3,p=0.867),性别间无显著差异。建议保护团队在晨昏高峰期加强监测,避免人为干扰;在冬季采取补饲等保护措施确保食物充足;并在制定管理计划时充分考虑家域特征。 展开更多
关键词 岩羊 卫星项圈 活动节律 家域
下载PDF
浙江德清野化放归朱鹮活动区的鸟类多样性
19
作者 邱国强 姜家虎 +6 位作者 徐向龙 邓适彦 张泽东 石坚 俞越 何丽花 丁长青 《湿地科学与管理》 2024年第5期70-75,共6页
为了解浙江德清野化放归朱鹮(Nipponia nippon)活动区的鸟类多样性及群落动态,探明朱鹮主要伴生鸟类及种间关系情况,本研究于2023年6月和2024年1月采用样线法和样点法开展德清朱鹮活动区鸟类资源调查。结果表明:共记录到鸟类155种,隶属... 为了解浙江德清野化放归朱鹮(Nipponia nippon)活动区的鸟类多样性及群落动态,探明朱鹮主要伴生鸟类及种间关系情况,本研究于2023年6月和2024年1月采用样线法和样点法开展德清朱鹮活动区鸟类资源调查。结果表明:共记录到鸟类155种,隶属于15目47科,其中,国家Ⅰ级保护野生动物2种,国家Ⅱ级保护野生动物14种,浙江省重点保护鸟类20种。古北界鸟类63种,东洋界鸟类53种,广布种39种;留鸟71种,旅鸟31种,冬候鸟30种,夏候鸟23种。夏季共记录到野生鸟类117种,共计3711只,优势种为白鹭(Egretta garzetta);冬季共记录到野生鸟类89种,共计3209只,优势种为白鹭和麻雀(Passer montanus)。6个调查区域中,溏泾村区域夏季与冬季的物种数与个体数量均为最高,灯塔村与联合村区域在夏季与冬季的物种数与多样性指数(H′)均处于较低的水平。鹭科鸟类与朱鹮在食物资源与巢址方面存在竞争关系,猛禽及鸦科鸟类对朱鹮的生存和繁殖具有一定影响,这些伴生鸟对朱鹮的影响机制及管理与防控对策仍有待深入研究。研究结果可为保护当地鸟类多样性和朱鹮野化放归种群提供基础数据。 展开更多
关键词 野化放归 朱鹮 活动区 鸟类多样性 季节变化
下载PDF
白喉噪鹛的繁殖生态
20
作者 范彪 张袁 +3 位作者 李鹏映 陈静 付义强 王琼 《四川动物》 北大核心 2024年第5期505-511,共7页
白喉噪鹛Pterorhinus albogularis是一种典型的森林鸟类,其基础生态学资料十分匮乏。2022—2023年繁殖季(4—9月),在云南乌蒙山国家级自然保护区小岩方片区内,对白喉噪鹛的繁殖生态进行了初步研究。共记录了20群89只次白喉噪鹛,区域种... 白喉噪鹛Pterorhinus albogularis是一种典型的森林鸟类,其基础生态学资料十分匮乏。2022—2023年繁殖季(4—9月),在云南乌蒙山国家级自然保护区小岩方片区内,对白喉噪鹛的繁殖生态进行了初步研究。共记录了20群89只次白喉噪鹛,区域种群密度为(28.3±12.2)只/km2。发现的4个白喉噪鹛巢均在筇竹Qiongzhuea tumidinoda上。巢呈杯状,隐蔽度高。4个巢的窝卵数均为3枚,卵呈暗蓝色。白喉噪鹛具有合作繁殖行为。该鸟类偏好在高大乔木数量多、盖度高和植被总盖度大的栖息地活动。Logistic回归分析表明:乔木因子和植被总盖度是影响白喉噪鹛活动区选择的关键生态因子。本研究结果丰富了白喉噪鹛的生态生物学资料。 展开更多
关键词 白喉噪鹛 繁殖生态 活动区选择 合作繁殖
下载PDF
上一页 1 2 12 下一页 到第
使用帮助 返回顶部