中侧关键词检索结果

合同农业中侧面销售的邻里效应:空间计量经济学方法

Neighborhood Effects on Side-Selling in Contract Farming: A Spatial Econometric Approach

[鱼类学 • 2026] Hyphessobrycon patanai • 来自巴西 Aripuanã 盆地下游的 Hyphessobrycon agulha 谱系的新 Hyphessobrycon(Characiformes:Acestorhamphidae:Hyphessobryconinae),以及有关谱系的评论

[Ichthyology • 2026] Hyphessobrycon pastanai • A New Hyphessobrycon (Characiformes: Acestrorhamphidae: Hyphessobryconinae) of the Hyphessobrycon agulha lineage from the lower Aripuanã Basin, Brazil, with comments about the lineage

Hyphessobrycon patanai Faria, Ohara, Monteiro & Oliveira, 2026 DOI: doi.org/10.1111/jfb.70379 Researchgate.net/publication/401289168 摘要描述了一种新种 Hyphessobrycon,产自 Rio Jatuarana 河下游、Rio Aripuanã 盆地、Rio Madeira 盆地、阿普伊、亚马逊。这个新物种是 Hyphessobrycon agulha 谱系的一部分,具有典型的中侧窄黑色条纹,背部紧随其后的是虹彩条纹。它的系统发育位置得到了DNA条形码方法的