Results 121 to 130 of about 7,691 (260)

Structure of aquatic vegetation of a large lake, western border of the Brazilian Pantanal

open access: yesBrazilian Journal of Biology
Studies on Neotropical aquatic macrophytes have increased in recent decades, however species richness in wetlands of South America is far from being fully known. In addition, studies having an ecological approach are scarce in the Pantanal.
NL. Cunha   +8 more
doaj   +1 more source

The 'Portuguese Forestry Community' and Research Fellows abroad between 1915 and 1945 [PDF]

open access: yes, 2013
One of the areas of greatest interest to a researcher in the field of the history of technology are studies done on the process of appropriating new scientific theories and technologies in countries that can be classified as peripheral in terms of their ...
Matos, Ana Cardoso de   +1 more
core  

Estrutura e diversidade arbórea da Floresta Estacional Semidecidual secundária no Jardim Botânico da Universidade Federal de Juiz de Fora

open access: yesRodriguésia
Este estudo avaliou a estrutura e diversidade da comunidade arbórea da Floresta Estacional Semidecidual secundária no Jardim Botânico da UFJF (Juiz de Fora, MG). As árvores (DAP 5 cm) foram amostradas em 25 parcelas aleatórias de 20 × 20 m.
Pablo Salles de Brito   +1 more
doaj   +1 more source

Dynamics of bog-pine-dominated mires in the Jura Mountains, Switzerland: A tentative scheme based on synusial phytosociology [PDF]

open access: yes, 2018
A description of the bog-pine (Pinus uncinata var.rotundata) dominated vegetation of uncut oligotrophic mires affected by drainage is given. Surveys were carried out at 17 sites along the Jura Mountains (Switzerland and France) in 1993, 1994, and 1995 ...
Buttler, Alexandre   +2 more
core  

Estrutura e aspectos da regeneração natural de Floresta Ombrófila Mista no Parque Estadual de Campos do Jordão, SP, Brasil

open access: yesHoehnea
O estudo buscou avaliar diferenças florísticas e estruturais entre os componentes adulto e regenerante de trecho de Floresta Ombrófila Mista em Campos do Jordão, a fim de levantar hipóteses sobre sua trajetória sucessional.
Rose Pereira Muniz de Souza   +3 more
doaj   +1 more source

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