PRESENT AND FUTURE DISTRIBUTION OF CRYPTIC SPECIES OF VLEI RATS (O.AURATUS, O.IRRORATUS S.S AND O.AN

来源 :The 5th International Conference on Rodent Biology and Manag | 被引量 : 0次 | 上传用户:aiyang1115
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Climate change is predicted to have profound impacts on the distribution of numerous species,particularly those species that have very low dispersal capacity and short life spans,and range-restricted species occupying narrow habitats.This study investigated current and potential future distribution of three cryptic species of Afromontane rodents (Otomys auratus,O.angoniensis and O.irroratus s.s) .Each of the three species is associated with a particular Biome i.e.O.irroratus s.s is associated mostly with Fynbos and Thicket Biomes,O.auratus with Grassland Biome and O.angoniensis with Savannah Biome and we predict that their distribution will follow those predicted for their respective Biomes.Distributional data were obtained from: field trapping,owl pellet analysis and Museum records [former Transvaal Museum and Durban Natural Science Museum].Maxent was used to model the current distribution of all three species and a general circulation model was used to predict the distribution of these species in 2070.Niche models were found to follow biome boundaries of each species.This scenario predicted a south east shift (auratus) ,a south west shift (angoniensis) and a shrink (irroratus s.s) in future distribution,according to each species preferred habitat.A concomitant 66% (auratus) and 36% (irroratus s.s) reduction in areas of high environmental suitability of these species is shown,with a 1%gain in angoniensis.High rainfall and low temperatures modulated the distribution of both auratus and irroratus s.s while high rainfall and high temperatures modulated angoniensis.And this was consistent with the ecological requirements of each species.
其他文献
Outline Market overview—expect revenue growth,albeit slow 100G is key transmission speed to supporting the market Components for 100G metro is todays opportuni
会议
提纲:世界光纤通信新技术(OFC-2014)中国光纤通信情况 物联网
会议
目的:探讨G蛋白偶联受体(G protein-coupled receptors,GPCRs)超家族成员神经降压素受体1(Neurotensin receptor1,NTR1)和Apelin受体(putative receptor proteinrelated to AT1,A
  Hump-shaped elevational profiles in species richness have been identified as being a common pattern in small mammal communities studied previously mostly in
会议
水稻不仅是世界上重要的粮食作物之一,而且是单子叶植物基因组研究的模式植物,全球一半以上的人口以稻米为主食。近年来,由于改良品种的广泛应用和育种家对亲本选择的偏好,使得水
恶性肿瘤的准确检测及有效治疗一直是生物学、医学等相关领域的研究重点。为了提高癌症的治疗效果,不仅需要对病变的癌细胞进行准确、高效的检测,提高化疗药物对于作用目标的靶
Outline Motivations InAs(P)/InP self-organized quantum dots Single InAs(P)/InP quantum dots Nano-SAG quantum dots
会议
纳米材料以其独特的性质成为现在关注的焦点。纳米材料在电子、光学、机械、生物、医药和催化等领域都显示出极大的应用价值。材料的粒径、形貌和维度等对纳米材料的性能均有