Cerqueira Gabriela R, Ilkiu-Borges Anna Luiza, Ferreira Leandro V
Progama de Pós-Graduação em Botânica Tropical, Museu Paraense Emílio Goeldi/MPEG, Av. Perimetral, 1901, Terra Firme, 66077-830 Belém, PA, Brasil, Museu Paraense Emílio Goeldi, Belém PA , Brasil.
Coordenação de Botânica, Museu Paraense Emílio Goeldi/MPEG, Av. Perimetral, 1901, Terra Firme, 66077-830 Belém, PA, Brasil, Museu Paraense Emílio Goeldi, Belém PA , Brasil.
An Acad Bras Cienc. 2016 May 13;88(2):903-10. doi: 10.1590/0001-3765201620150274.
This work aimed to recognize the reproductive biology of the epiphytic bryoflora of phorophytes of Virola surinamensis (Rol. ex. Rottb.) Warb. in várzea and igapó forests in the Caxiuanã National Forest, to answer the following question: The reproductive period of the bryophyte species is influenced by the environment due the climatic seasonality present in flooded forests, being higher the occurrence of the sexual and asexual reproduction in the rainiest months? The bryophytes were identified and analyzed for the type of reproduction, sexual system and reproductive structures. In total, 502 samples of bryophytes were analyzed, resulting in 54 species, of which 34 were fertile. The comparison of the fertility of the species in different environmental conditions (dry or rainy, and igapó or várzea forest) was assessed using the chi-square test. The fertility of the seven studied species could not be defined by a pattern, considering the forest type and the seasonality. However, two species were associated to the forest type and two further species to the seasonality, showing that, for some bryophyte species, invest in constant fertility may be favoring the maintenance of their populations in tropical forests.
这项工作旨在认识苏里南维罗榈（Virola surinamensis (Rol. ex. Rottb.) Warb.）附生苔藓植物区系在卡西亚纳国家森林的泛滥平原和伊加波森林中的繁殖生物学，以回答以下问题：由于洪水森林中存在的气候季节性，苔藓植物物种的繁殖期是否受环境影响，在降雨最多的月份有性繁殖和无性繁殖的发生率是否更高？对苔藓植物进行了鉴定，并分析了其繁殖类型、性系统和繁殖结构。总共分析了502个苔藓植物样本，共54种，其中34种可育。使用卡方检验评估不同环境条件（干燥或多雨，伊加波森林或泛滥平原森林）下物种的可育性。考虑到森林类型和季节性，所研究的七个物种的可育性无法用一种模式来定义。然而，有两个物种与森林类型相关，另外两个物种与季节性相关，这表明，对于一些苔藓植物物种来说，持续保持可育性可能有利于它们在热带森林中的种群维持。
