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8篇 您的检索式:作者名="Jochen MARTENS"
    题名 作者 年代 出处 被引量
1云南柳莺鸣声特点及地理差异的初步分析显示文摘1997、2002和2005年5~7月,在陕西省、四川省和甘肃省内共7个地区采集云南柳莺(Phylloscopus yunnanensis)的鸣声样本,并分析采自不同地区的共40只个体的鸣声。发现云南柳莺的鸣唱(song)和鸣叫(calls)在同一地区存在一定的差异。比较99段云南柳莺的鸣唱声,发现持续时间与间隔时间之间存在显著的负相关(Pearson,r=-0.276,P=0.006,n=99)。单因素方差分析表明,不同地区云南柳莺鸣唱的最高频率、最低频率和持续时间没有显著差异,而音节的间隔时间及音素数量均存在显著差异(P=0.006;P=0.000)。结果表明,不同海拔、地区之间个体鸣唱音节间隔时间与海拔成正相关(Pearson,r=0.425,P=0.03,n=26)。李金林 孙悦华 Jochen MARTENS 毕中霖 2008动物学杂志2008,43,3:10
2棕眉柳莺鸣唱声谱分析及其地理差异的初步研究显示文摘2002、2005、2007年5~8月,在甘肃莲花山、宁夏贺兰山和内蒙阿拉善贺兰山等自然保护区对棕眉柳莺(Phylloscopus armandii)的鸣唱进行了采集,共录到18只108min的鸣声。通过声谱分析,棕眉柳莺鸣唱的频率范围在2.63~6.32kHz之间;音素数平均为5.56±2.47(n=124);持续时间为(1.07±0.30)s(n=124),最长可达2.68s。棕眉柳莺鸣唱音节之间的间隔时间差异较大,范围在2~18s之间;从18只个体共589个音节中总结出61种音节类型,其中37种为共享音节,24种为特有音节,分别占总数的60.7%和39.3%。不同棕眉柳莺个体的鸣唱音节类型组成不同,没有任何两只棕眉柳莺个体的音节曲目完全一致。莲花山和内蒙贺兰山两个地区内个体之间的音节相似性系数存在显著差异(P=0.001)。通过对棕眉柳莺鸣唱的地理变异分析,发现越是邻近分布的个体其鸣唱也越相似。李金林 吕楠 MARTENS Jochen 孙悦华 2009动物学杂志2009,44,1:5
3陕西秦岭发现四川旋木雀显示文摘孙悦华 Jochen Martens 2005动物学杂志2005,40,4:4
4A phylogeographic break and bioacoustic intraspecific differentiation in the Buff-barred Warbler(Phylloscopus pulcher)(Aves:Passeriformes,Phylloscopidae)显示文摘Background: According to current taxonomy only three out of 27 Sinohimalayan leaf warbler species(Phylloscopidae) are considered genetically uniform across their entire breeding range along the Southeastern margin of the Qinghai-Tibetan Plateau, the Buff-barred Warbler(Phylloscopus pulcher) being one of them. Because marked differentiation among Himalayan and Chinese populations has been recently demonstrated for a number of Phylloscopus species(or sister species) we investigated the intraspecific variation of a mitochondrial gene, songs and morphology of P. pulcher in a phylogeographic approach.Methods: We sequenced a fragment of the mitochondrial cytochrome b, reconstructed haplotype networks and analyzed DNA polymorphism among Himalayan and Chinese populations. We measured time and frequency parameters of two distinct song types and analyzed among population-differentiation in a principal component analysis and a discriminant analysis. We also compared measurements of body size dimensions taken from museum specimens.Results: The mitochondrial haplotype network(cytb) was divided into two distinct clusters corresponding to geographic origin of samples. Pairwise genetic distances among Himalayan and Chinese mt DNA lineages account for 1.3% which coincides with Pleistocene lineage separation at roughly 650,000 years ago. Genetic diversity is slightly higher in the Chinese part of the species' range with respect to haplotype and nucleotide diversity while the less diversified Himalayan population lineage shows signs of recent range expansion. The vocal repertoire of P. pulcher comprises two distinct verse types that are combined with short interspersed click notes to long continuous song displays. Trill verse types showed significant differences among regions in almost all measured frequency and time parameters: Chinese males displayed more rapid and more broad-banded trills at a lower pitch. In contrast,warbling verse types showed a distinctively different structure among regions: Himalayan songs consisted of repeated syllables while Chinese songs comprised repetitions of single, long and strongly modulated elements.Subtle morphological differences among specimens from the two study regions could only be confirmed for plumage coloration but not for metric characters.Conclusions: Based on the genetic and bioacoustic distinctiveness of Chinese Buff-barred Warbler populations,we recommend that the name Phylloscopus pulcher vegetus Bangs, 1913 should be re-validated for this taxon.Martin Packert Yue-Hua Sun Balduin S Fischer Dieter Thomas Tietze Jochen Martens 2014Chinese Birds2014,,1:2
5Phylogeny of long-tailed tits and allies inferred from mitochondrial and nuclear markers (Aves: Passeriformes, Aegithalidae)显示文摘Martin P?ckert Jochen Martens Yue-Hua Sun 2010Molecular Phylogenetics and Evolution2010,,3:1
6Radiation and species limits in the Asian Pallas’s warbler complex (Phylloscopus proregulus s.l.)*显示文摘Jochen Martens Dieter Thomas Tietze Siegfried Eck Michael Veith 2004Journal of Ornithology2004,,3:1
7Extreme tolerance to environmental stress of sexual and parthenogenetic resting eggs of Eucypris virens (Crustacea, Ostracoda)显示文摘JOCHEN VANDEKERKHOVE KOEN MARTENS GIAMPAOLO ROSSETTI FRANCESC MESQUITA‐JOANES TADEUSZ NAMIOTKO 2012Freshwater Biology2012,,2:1
8Pnoepyga immaculata n. sp., eine neue bodenbewohnende Timalie aus dem Nepal-Himalaya显示文摘Jochen Martens Siegfried Eck 1991Journal of Ornithology1991,,2:1
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