African Journal of Wildlife Research最新文献_第4页

Through the Eyes of the Protectors: Field Rangers' Mental Models as a Conservation Management Tool in the 21st Century 通过保护者的眼睛：21世纪野外护林员作为保护管理工具的心理模型

IF 0.9 4区环境科学与生态学

African Journal of Wildlife Research Pub Date : 2022-04-18 DOI: 10.3957/056.052.0023

Riechelle Prinsloo, E. D. de Crom, A. Combrink

引用次数: 0

Three New Insectivorous Bat Species Records for the Mountain Zebra National Park, South Africa 南非山斑马国家公园三种新的食虫蝙蝠记录

IF 0.9 4区环境科学与生态学

African Journal of Wildlife Research Pub Date : 2022-04-06 DOI: 10.3957/056.052.0017

D. Parker

引用次数: 0

New Records of White Phenotype Honey Badgers (Mellivora capensis) from South Africa 标题南非白色表型蜜獾新记录

IF 0.9 4区环境科学与生态学

African Journal of Wildlife Research Pub Date : 2022-02-21 DOI: 10.3957/056.052.0012

Michael D. Ross, Ayesha S. Hargey, Lucy K. Smyth, G. K. Mann, M. O’Riain

引用次数: 0

African Large Carnivore Population Changes in Response to a Drought 非洲大型食肉动物种群对干旱的响应变化

IF 0.9 4区环境科学与生态学

African Journal of Wildlife Research Pub Date : 2022-02-01 DOI: 10.3957/056.052.0001

Sam M. Ferreira, P. Viljoen

引用次数: 4

Selection of Vegetation Greenness by Nyala Antelopes on a Resource Productivity Gradient 雅拉羚羊在资源生产力梯度上对植被绿度的选择

IF 0.9 4区环境科学与生态学

African Journal of Wildlife Research Pub Date : 2021-12-16 DOI: 10.3957/056.051.0193

Jason P. Marshal, T. Tshabalala, F. Parrini

{"title":"Selection of Vegetation Greenness by Nyala Antelopes on a Resource Productivity Gradient","authors":"Jason P. Marshal, T. Tshabalala, F. Parrini","doi":"10.3957/056.051.0193","DOIUrl":"https://doi.org/10.3957/056.051.0193","url":null,"abstract":"Geographic gradients in plant productivity can present foraging large herbivores with varying resource levels across the range of a population, to which individuals can demonstrate varying intensity of selection. To investigate individually-specific responses of nyala antelopes (Tragelaphus angasii ) to vegetation greenness, we monitored the landscape use of eight telemetry-collared adult females, half at the wetter end and half at the drier end of Hluhluwe–iMfolozi Park, South Africa. We used remotely-sensed greenness as an index for plant productivity and data on canopy structure, and we compared the strength of selection for greenness between animals having different greenness averages within their home ranges. We found a decreasing pattern between home-range average greenness and strength of selection, which depended on season and presence of tree canopies. Animals in low-greenness home ranges tended to have stronger positive selection in closed-canopy vegetation in the dry season; those in high-greenness home ranges tended to have the stronger negative selection in open-canopy vegetation in the wet season. Our study emphasizes the possibility that a spatial resource gradient on a landscape might provide a valuable model of temporal change in a resource and an indication of potential for foraging animals to adapt to those changes.","PeriodicalId":54306,"journal":{"name":"African Journal of Wildlife Research","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44169656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Determinants of Mesocarnivore Activity Patterns in Highveld Grassland and Riparian Habitats 高原草原和河岸生境中食肉动物活动模式的决定因素

IF 0.9 4区环境科学与生态学

African Journal of Wildlife Research Pub Date : 2021-12-14 DOI: 10.3957/056.051.0178

A. Webster, M. E. Pretorius, M. Somers

{"title":"The Determinants of Mesocarnivore Activity Patterns in Highveld Grassland and Riparian Habitats","authors":"A. Webster, M. E. Pretorius, M. Somers","doi":"10.3957/056.051.0178","DOIUrl":"https://doi.org/10.3957/056.051.0178","url":null,"abstract":"Despite the diversity of mesocarnivores and the broad geographic ranges of these species, our understanding of their behaviour and ecology at multi-species and community levels is limited. Our study was conducted between April and mid-July 2015 and used data collected over 105 days from 39 camera traps to quantify activity patterns of sympatric mesocarnivores in riparian and grassland habitats of Telperion Nature Reserve, South Africa. A total of 13 mesocarnivore species were detected within this relatively small (∼7350 ha) reserve. Sufficient records (≥10 records) were obtained for rusty-spotted genet (Genetta maculata), black-backed jackal (Canis mesomelas), otter species (African clawless otter, Aonyx capensis, and spotted-necked otter, Hydrictis maculicollis), serval (Leptailurus serval ), slender mongoose (Galerella sanguinea), yellow mongoose (Cynictis penicillata) and marsh mongoose (Atilax paludinosus). Generalized linear models were used to investigate whether species ID, temperature, vegetation characteristics or moon phase best predicted temporal activity. To assess which species had the highest potential for competitive interaction, we also quantified the coefficient of activity overlap. Our results show that species ID and temperature were the best predictors of mesocarnivore activity. Slender and yellow mongooses displayed the highest coefficient of activity overlap (0.90), followed by marsh mongoose and rusty-spotted genet (0.80), and serval and rusty-spotted genet (0.79). These species are likely to have the highest potential for competitive interactions, but preferences for different vegetation characteristics and variations in the estimated relative abundance may point to coexistence through spatial and fine-scale temporal partitioning. The other species exhibited lower coefficients of activity overlap with each other, suggesting they may coexist through temporal partitioning of resources.","PeriodicalId":54306,"journal":{"name":"African Journal of Wildlife Research","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44742611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

The Application and Limitations of a Low-Cost UAV Platform and Open-Source Software Combination for Ecological Mapping and Monitoring 低成本无人机平台和开源软件组合在生态测绘和监测中的应用和局限性

IF 0.9 4区环境科学与生态学

African Journal of Wildlife Research Pub Date : 2021-12-09 DOI: 10.3957/056.051.0166

Albert Myburgh, H. Botha, C. Downs, S. Woodborne

{"title":"The Application and Limitations of a Low-Cost UAV Platform and Open-Source Software Combination for Ecological Mapping and Monitoring","authors":"Albert Myburgh, H. Botha, C. Downs, S. Woodborne","doi":"10.3957/056.051.0166","DOIUrl":"https://doi.org/10.3957/056.051.0166","url":null,"abstract":"Low-cost uncrewed aerial vehicles (UAVs) have become ubiquitous, and advanced UAV systems are affordable for many field ecologists and wildlife managers. Many hobbyist UAVs have been applied to ecological studies, but proprietary software limits their widespread application with little quantification with regards to their accuracy and efficiency in the creation of maps through photogrammetry. Our study addressed these concerns by evaluating a combination of an entry-level UAV and open-source photogrammetry drone mapping software as a low-budget mapping solution for ecologists. Geometrically accurate orthophotograph maps were created from flights at altitudes below 70 m with and without differential global positioning system (d-GPS) ground control points. Object measurement errors were constrained below 30 mm for altitudes up to 70 m, and errors fell below 10 mm at 30 m altitudes with d-GPS points and below 20 mm without the use of d-GPS ground control points. Our analyses provide guidelines that parameterize the requirements for the mapping of smaller areas. Ecological surveys that do not require <50 mm accuracy can benefit from the methods described here, and many ecological studies that are presently using costly software and UAV platforms could save when adopting this approach.","PeriodicalId":54306,"journal":{"name":"African Journal of Wildlife Research","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48936312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Feeding Ecology of the Large Carnivore Guild in Madikwe Game Reserve, South Africa 南非马迪威禁猎区大型食肉动物协会的饲养生态学

IF 0.9 4区环境科学与生态学

African Journal of Wildlife Research Pub Date : 2021-11-16 DOI: 10.3957/056.051.0153

Terry-Lee Honiball, M. Somers, H. Fritz, J. Venter

{"title":"Feeding Ecology of the Large Carnivore Guild in Madikwe Game Reserve, South Africa","authors":"Terry-Lee Honiball, M. Somers, H. Fritz, J. Venter","doi":"10.3957/056.051.0153","DOIUrl":"https://doi.org/10.3957/056.051.0153","url":null,"abstract":"Southern Africa has a diverse large carnivore guild. When this large carnivore guild is confined to fenced protected areas, the degree of intraguild competition may increase. Dietary overlap is a notable point of competition and can have considerable effects on lower trophic levels. We considered the prey preferences, dietary overlap, and dietary niche breadth of the large carnivore guild in Madikwe Game Reserve through direct observations and scat analysis, over one year of sampling. These data were analysed using the Jacobs' index for prey preference, the Pianka's index for dietary overlap and Levin's index for dietary niche breadth. Leopards (Panthera pardus), cheetahs (Acinonyx jubatus) and African wild dogs (Lycaon pictus) had a high degree of dietary overlap and were specialized in their diet selection. Lions (Panthera leo), brown (Parahyaena brunnea) and spotted hyaenas (Crocuta crocuta) also showed a high degree of dietary overlap and had broad diets. Our results show similarities to those of open systems, suggesting that large carnivore diet selection may not be negatively affected when they are confined by fences. We recommend further investigations into the variables which may affect site-specific carnivore diet selection.","PeriodicalId":54306,"journal":{"name":"African Journal of Wildlife Research","volume":"51 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43796274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The Scientific Name of the Aardwolf is Proteles cristatus 阿狼的学名是Proteles cristatus

IF 0.9 4区环境科学与生态学

African Journal of Wildlife Research Pub Date : 2021-11-02 DOI: 10.3957/056.051.0149

L. Werdelin, A. Kitchener, A. Abramov, G. Veron, Emmanuel Do Linh San

引用次数: 1

Evaluating Oribi Translocations for Conservation: The Importance of Translocation Guidelines 评估Oribi迁徙保护：迁徙指南的重要性

IF 0.9 4区环境科学与生态学

African Journal of Wildlife Research Pub Date : 2021-11-01 DOI: 10.3957/056.051.0144

T. Patel, Keenan Stears, I. Little, Adrian M. Shrader

引用次数: 1