Results 21 to 30 of about 6,107 (167)
Desertification is increasing in the Brazilian Semiarid, leading to loss of species and ecosystem services, while precise data on biodiversity distribution and trends are lacking. Public engagement in scientific projects can improve ecosystem protection.
Lucas Rodriguez Forti +3 more
wiley +1 more source
Key Largo woodrats are a small and endangered island species, whose individuals tend to occur in family groups. Isolation from mainland populations, predation, and habitat fragmentation have caused genetic drift, leading to low overall diversity. Here, we found that a major category 4 hurricane promoted genetic diversity in the Key Largo woodrat ...
Taylor Ackley +5 more
wiley +1 more source
Screening of SNP Loci of Growth-related Candidate Gene and Genetic Diversity of Five Populations Based On Microsatellite Markers in Fujian Oyster, Crassostrea angulata [PDF]
福建牡蛎(Crassostreaangulata,C.angulata)又名葡萄牙牡蛎,具有重要的经济价值和生态价值,但由于长期未经选育以及人工育苗的应用,导致牡蛎养殖出现经济性状衰退及死亡率逐年增高等现象,亟需加强种质资源保护,开展遗传改良研究。本研究利用单核苷酸多态性分子标记(singlenucleotidepolymorphism,SNP)对福建牡蛎生长相关的5个候选基因,即胰岛素相关多肽(insulinrelatedpeptides,IRPs)、ɑ-淀粉酶(ɑ-Amylase,ɑ-AMY ...
楚瑞敏
core
Using a diagnostic mitochondrial marker gene, we document the presence of furry‐eared dwarf lemurs, a species known from Madagascar's eastern montane rainforests, in several forest fragments across the island's central highlands. These findings raise new questions about when this species colonized these sites, how they tolerate these changing and ...
Marina B. Blanco +27 more
wiley +1 more source
利用12个微卫星位点复合扩增构建马来穿山甲(Manis javanica)个体识别体系,评估其种群遗传多样性和遗传结构。结果显示:重构的个体识别体系累积无关个体基因型匹配概率(P(ID))和同胞个体基因型匹配概率(P(ID)sibs)分别为6.48×10-16和9.65×10-6,具有较高的鉴别力和灵敏度。在135只马来穿山甲个体上共检测出155个等位基因,多态信息含量(PIC)为0.733,平均等位基因数(Na)为12.91,平均观测杂合度(Ho)为0.631,平均期望杂合度(He)为0.756 ...
李嘉昊 +5 more
doaj
Studies on Heat Tolerance in Abalone Based on the Measurement of Heart Rate [PDF]
鲍是海产八珍之首,2015年,我国的鲍产量已经超过13万吨,其中福建省的产量占全国的80%。皱纹盘鲍为温带种,原分布于我国黄、勃海海域,1990年代后期南移福建后,获得了极大发展,由此福建逐步成为我国鲍养殖的主产区。但福建海域的夏季高水温往往导致鲍的高死亡率,这一直困扰着鲍养殖产业的发展。因此,培育耐高温的养殖新品种显得格外重要,而其中建立鲍的耐高温性状的准确测评方法是品种培育的关键。本研究中,我们通过测定阿氏拐点温度(Arrheniusbreakpointtemperature,ABT ...
陈楠
core
Brief summary: Sri Lanka's biodiversity is threatened by habitat loss, climate change, and ineffective traditional conservation methods. Integrating plant tissue culture and DNA barcoding offers scalable, precise tools for conserving rare and endemic species.
Mylange Dona Kasundi Mekhala Gunasena +2 more
wiley +1 more source
丹顶鹤(Grus japonensis)是一种大型濒危鸟类,现存数量不足4 000只,分成两个地理隔离的野生种群——大陆种群(2 000只)和岛屿种群(1 900只),生活于亚洲东北部。两个种群的遗传结构没有显著分化,但大陆种群比岛屿种群的遗传多样性更高。中国是大陆种群的主要栖息地,目前保护工作依然任务艰巨,对大陆种群遗传多样性的深入认识和保护迫在眉睫。本文回顾了过去40年对丹顶鹤实施全面保护以来,在丹顶鹤与其他鹤类的系统演化关系、丹顶鹤岛屿和大陆种群遗传多样性、亲子鉴定与亲族区域地理分布 ...
李菲凡, 胡东宇
doaj
Population genetic structure and phylogentic analysis for Morone americana in Delaware Bay of United States [PDF]
美洲狼鲈(Moroneamericana,Gmelin,1789)隶属于鲈形目(Perciformes),狼鲈科(Moronidae),狼鲈属(Morone),别名美洲白鲈、白石鮨。美洲狼鲈是在美国东海岸浅海区域十分常见的一种溯河洄游鱼类,每逢春末夏初,生活于近海和河口区域的美洲狼鲈便溯河洄游至河流中上游产卵繁衍。美洲狼鲈也经常被用作海区污染程度的指示种。鉴于美洲狼鲈广泛的分布范围以及巨大的种群数量,其十分适合作为近岸洄游性鱼类群体研究的模式种类。同时,其在检测环境污染方面也具有主要作用 ...
边力
core
Assessing the genetic diversity of edible insects harvested from the wild is a pre‐requisite for designing conservation and management policies. The caterpillars of Gynanisa maja (Saturniidae) are harvested in large numbers in mopane woodlands in southern Africa, where they represent a seasonal source of income and nutrition to many rural communities ...
Zwannda Nethavhani +3 more
wiley +1 more source

