Affiliation:
1. Museu Paraense Emílio Goeldi, Brasil
Abstract
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.
Reference49 articles.
1. Inventário Florístico e Análise Fitossociológica dos Ambientes do Parque de Gumna, município de Santa Bárbara, Belém, Pará. Relatório Técnico MPEG/JICA,;Almeida SS,2003
2. Padrões de reprodução vegetativa em espécies de Lejeuneaceae (Marchantiophyta) e seu significado taxonômico e ecológico;Bastos Cjp;Rev Bras Bot,2008
3. Sex expression, skewed sex ratios, and micro habitat distribution in the dioecious desert moss Syntrichia caninervis (Pottiaceae);Bowker MA;Am J Bot,2000
4. Life strategies of bryophytes: a preliminary review;During HJ;Lindbergia,1979
5. Autoecology of Octoblepharum albidum Hedw. in Western Nigeria 11. Phenology and water relations.;Egunyomi A;Nova Hedwigia,1979
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献