Journal of Vertebrate Biology最新文献_第5页

Dispersal of eastern imperial eagles from the Czech Republic 从捷克共和国驱散东方帝王鹰

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2023-04-27 DOI: 10.25225/jvb.23009

D. Rymešová, D. Horal, H. Matušík, R. Raab, P. Spakovszky, I. Literák

{"title":"Dispersal of eastern imperial eagles from the Czech Republic","authors":"D. Rymešová, D. Horal, H. Matušík, R. Raab, P. Spakovszky, I. Literák","doi":"10.25225/jvb.23009","DOIUrl":"https://doi.org/10.25225/jvb.23009","url":null,"abstract":"Abstract. The first successful breeding of eastern imperial eagles (Aquila heliaca) in the Czech Republic, which lies at the north-western edge of its world breeding range, was confirmed in 1998. Here we summarise the dispersal, overwintering and expansion of the Czech population based on observational, ringing and telemetry data. The Czech breeding population had increased to at least 14 breeding pairs and 18 territorial pairs by 2022. Between 2017 and 2021, 19 nestlings were equipped with GPS/GSM devices. Two of the 16 surviving individuals (12.5%) spent their first winter in the Mediterranean (1,460 km and 1,671 km from natal nest), but did not repeat this migration pattern again. The other 14 tracked individuals wintered close to their natal areas. Maximal recorded distances from the natal nest and total area occupied (100% minimal convex polygons) were significantly lower in the first calendar year than the second. Signs of settlement prior to the first nesting attempt were already apparent by the third or fourth calendar year. Excluding exploratory trips during the floater period, final natal dispersals for two of the breeding males were 46 km and 92 km, respectively. Further spreading of the species' Czech breeding range is expected in the future.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44649169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relationships between bird species richness and different facets of landscape heterogeneity – insights from a military area 鸟类物种丰富度与景观异质性的关系——来自某军事地区的见解

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2023-04-20 DOI: 10.25225/jvb.23012

Lenka Dvořáková, Jana Hernová, Ondřej Bušek, J. Reif

{"title":"Relationships between bird species richness and different facets of landscape heterogeneity – insights from a military area","authors":"Lenka Dvořáková, Jana Hernová, Ondřej Bušek, J. Reif","doi":"10.25225/jvb.23012","DOIUrl":"https://doi.org/10.25225/jvb.23012","url":null,"abstract":"Abstract. Military areas often host extraordinary biodiversity compared to the typical agricultural landscape in Europe. It has been suggested that this is due to the high landscape heterogeneity caused by disturbances from military training. This study aimed to test this hypothesis using data from the military area Hradiště and nearby farmland in the Czech Republic (Central Europe). Here, we measured two facets of landscape heterogeneity – the number of woody vegetation patches and habitat diversity – and supplemented these measures with previously published data from bird point counts performed on the same sites. The number of woody vegetation patches was higher in the military area than in the farmland and was positively related to the species richness of birds of conservation concern. Habitat diversity did not differ between both regions. It showed, however, a hump-shaped relationship with total bird species richness. Our results indicate that open landscapes of military areas host a higher number of birds of conservation concern than the farmland due to a finer grain of woodland-grassland mosaic. To support more bird species, it is essential to keep habitat diversity high in open landscapes but at a level that does not harm bird populations by area limitation.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47523848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Fluctuating asymmetry and environmental stress in a reptile under different levels of anthropogenic disturbance 不同人为干扰水平下爬行动物的波动不对称与环境应激

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2023-04-10 DOI: 10.25225/jvb.22073

G. Castillo, C. González-Rivas

引用次数: 1

Phenotypic trait variations in the frog Nanorana parkeri: differing adaptive strategies to altitude between sexes 蛙的表型特征变异：不同性别对海拔高度的不同适应策略

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2023-04-10 DOI: 10.25225/jvb.23008

Dongmin Hou, Ting Jia, Yue Ren, Wan-long Zhu, P. Liu

{"title":"Phenotypic trait variations in the frog Nanorana parkeri: differing adaptive strategies to altitude between sexes","authors":"Dongmin Hou, Ting Jia, Yue Ren, Wan-long Zhu, P. Liu","doi":"10.25225/jvb.23008","DOIUrl":"https://doi.org/10.25225/jvb.23008","url":null,"abstract":"Abstract. In many animals, changes in altitude drive adaptive variation in body size. However, how other phenotypic traits change when faced with different environments has been little studied in ectotherms. In this study, we selected the high Himalaya frog Nanorana parkeri as a model species for investigating the adaptive evolution of phenotypic traits that respond to altitude in both sexes. First, we found that body mass in populations at higher altitudes was lower than at lower altitudes in females, with no difference observed in males. Second, we found significant differences in fresh liver mass, fresh heart mass, and the ratio of liver mass to body mass with increasing altitude, while hindlimb length decreased with altitude in both sexes. Third, snout-urostyle length, hindlimb length, fresh heart mass and the ratio of heart mass to body mass showed significant negative correlations with increasing altitude in both sexes. In contrast, body mass showed a significant correlation with altitude in females but not males. On the other hand, the ratio of liver mass to body mass showed a significant correlation with altitude in males but not in females. Thus, the species displayed sex-specific organ-size variation along elevation gradients, which may trade-off in life history strategies among populations. We speculate that selection favours a larger heart and liver mass to maintain a higher respiratory rate and energy consumption as an adaptation to high-altitude environments.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49374495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Male position in a sexual network reflects mating role and body size 雄性在性网络中的位置反映了交配角色和体型

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2023-04-06 DOI: 10.25225/jvb.22069

Carl Smith, R. Spence, R.I. Bailey, M. Reichard

引用次数: 1

Cedar plantations as habitat for Japanese squirrels in the cool temperate zone 雪松种植园是日本松鼠在冷温带的栖息地

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2023-03-30 DOI: 10.25225/jvb.23002

Suzuka Honda, Masayuki U. Saito

{"title":"Cedar plantations as habitat for Japanese squirrels in the cool temperate zone","authors":"Suzuka Honda, Masayuki U. Saito","doi":"10.25225/jvb.23002","DOIUrl":"https://doi.org/10.25225/jvb.23002","url":null,"abstract":"Abstract. In this study, we determine whether coniferous plantations in the cool temperate zone of northeast Japan, with few natural evergreen forests, can serve as a habitat for Japanese squirrels. We also examine whether Japanese squirrel habitat use in cedar plantations varies based on forest structure. Our results showed that the relative frequency of squirrel occurrence, determined by camera traps and the number of feeding signs, was significantly higher at cedar forest survey sites than other forest types. The best generalised linear model for frequency of occurrence included the number of standing trees, canopy openness and understory visibility, while the best model for the number of feeding signs included total basal area, canopy openness and the number of walnut trees. The results suggest that cedar plantations within the study area serve partially as a habitat for squirrels, replacing natural evergreen trees. Furthermore, squirrel habitat use differed between cedar plantations based on forest structure, confirming the importance of a diverse forest structure for squirrels. Therefore, when considering the conservation and management of small arboreal mammals that use such plantations, they must include diverse structures to facilitate their use as a habitat.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47179792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ocellated lizard predation patterns on red-legged partridge nests in olive groves 橄榄林中红腿鹧鸪巢上的斑点蜥蜴捕食模式

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2023-03-29 DOI: 10.25225/jvb.22074

J. Duarte, M. A. Farfán

{"title":"Ocellated lizard predation patterns on red-legged partridge nests in olive groves","authors":"J. Duarte, M. A. Farfán","doi":"10.25225/jvb.22074","DOIUrl":"https://doi.org/10.25225/jvb.22074","url":null,"abstract":"Abstract. In this study, we evaluated predation of the ocellated lizard on red-legged partridge nests in an olive grove in southern Spain over three consecutive years. The microhabitat characteristics of prey nests are analysed through comparison with successful nests. We found only 13 nests predated by lizards during the study period. This number was three times lower than that of nests that failed due to causes related to agricultural practices or human activity in the same period and study area. A few of the nests were predated by mammals more than they were preyed upon by lizards. The nests preyed on by lizards were associated with proximity to their refuge areas (e.g. stone piles, old buildings with holes, or rabbit burrows). The characteristics of the olive grove (e.g. drip irrigation and absence of vegetation under the olive trees) may favour the ocellated lizards' search-and-hunt strategy, which allows a lizard to readily find a nest if it is inside the lizard's territory and close to its refuge. We propose management strategies for reducing lizard-related nest losses. However, we argue that olive grove intensification is a major cause of partridge nest failure rather than predation by lizards and other predators.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47558172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ovipositor of bitterling fishes (Cyprinidae, Acheilognathinae): fine structure from a functional perspective 卤鱼的卵巢器（Cyprinidae，Acheilognathinae）：从功能角度看精细结构

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2023-02-17 DOI: 10.25225/jvb.22070

I. Dyková, M. Reichard

引用次数: 1

Forest musk deer (Moschus berezovskii) in China: research and protection 中国林麝的研究与保护

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2023-02-17 DOI: 10.25225/jvb.22067

Hui Feng, Lu Wang, Fang-Jun Cao, J. Ma, Jie Tang, C. Feng, Zhijian Su

引用次数: 1

Bone size and its effect on body mass in Eothenomys miletus from the Hengduan Mountain region 横断山区始足线虫骨大小及其对体重的影响

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2023-01-31 DOI: 10.25225/jvb.22066

Yu-Qiu Liao, Ting Jia, Wan-long Zhu

{"title":"Bone size and its effect on body mass in Eothenomys miletus from the Hengduan Mountain region","authors":"Yu-Qiu Liao, Ting Jia, Wan-long Zhu","doi":"10.25225/jvb.22066","DOIUrl":"https://doi.org/10.25225/jvb.22066","url":null,"abstract":"Abstract. Morphological characteristics are closely related to habitat characteristics; habitat differences drive morphological differentiation, resulting in intraspecific and interspecific differences. In the present study, it was shown that body mass and body length in Eothenomys miletus from five regions: (Dali (DL), Jianchuan (JC), Lijiang (LJ), Xianggelila (XGLL) and Deqin (DQ)) of Hengduan Mountain, showed differentiation in bone morphological indices. The length of the sternum in E. miletus in JC is smaller than that in XGLL, and the length of the lumbar vertebrae is smaller than that in XGLL and DQ. The length of other trunk bones and limb bones of E. miletus in DL, JC and LJ at low latitudes and high temperatures were longer than in XGLL and DQ at high latitudes and low temperatures. Principal component analysis associated XGLL and DQ populations and cluster analysis divided the populations from five regions into two categories. The increase in bone length and mass correlated with increased body mass in E. miletus. Change in bone length does not conform to Bergmann's Law, which was affected by altitude, average annual temperature and latitude. Moreover, food, terrain, and living habits may also affect bone morphology in E. miletus.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48325536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1