Results 11 to 20 of about 777 (178)

Extending the concept of entropy-negentropy for the assessment of ecological dominance and diversity at alpha, beta and gamma levels

open access: yesGeology, Ecology, and Landscapes, 2021
Several measures of ecological diversity have been defined at alpha, beta, and gamma levels and less attention has been paid to characterise their ecological dominance.
Vinod Kumar   +3 more
doaj   +1 more source

COVER CROPS CHANGE THE PHYTOSOCIOLOGY OF WEEDS AND THE BANANA YIELD

open access: yesRevista de Agricultura Neotropical, 2020
This work aimed to evaluate the phytosociology of weeds and the fruit yield of banana (cv. Tropical) in different soil coverings. The experimental design used was randomized blocks, with eight treatments and three replications.
Jorgiani Ávila   +4 more
doaj   +1 more source

J.K. Paczoski (To 140 anniversary)

open access: yesІнтродукція Рослин, 2004
The paper is dedicated to grate scientist J.K. Paczoski (1864–1942), a founder of phytosociology. Professor Paczoski was also worldwide known researcher in plant systematics, floristic, forestry, zoology and protection of the nuture.
V.I. Melnik
doaj   +1 more source

Continuum of floristic composition between two plant communities – Carici elongatae-Alnetum and Fraxino-Alnetum

open access: yesLeśne Prace Badawcze, 2017
One of the crucial debates in vegetation ecology is whether plant communities are discontinuous, distinguishable units or whether they change continuously.
Czapiewska Natalia   +3 more
doaj   +1 more source

A phytosociological study of spring-type rice field vegetation in Angye Plains, South Korea

open access: yesJournal of Asia-Pacific Biodiversity, 2019
This phytosociological study was carried out on spring-type rice field vegetation in the Angye Plains. Field surveys were based on the method developed by the Zürich–Montpellier School of Phytosociology, which emphasizes species composition and ...
Sung-Yeol Kim   +3 more
doaj   +1 more source

Occurrence of weed species in Jatropha curcas intercropping systems [PDF]

open access: yesPlanta Daninha, 2014
This study aimed to evaluate the level of infestation by weed species in a consolidated Jatropha plantation, as a function of the plant species grown in interrows. The experiment was installed in 2006 at the district of Itahum, city of Dourados, state of
G. Concenço   +7 more
doaj   +1 more source

Estrutura e dinâmica do componente arbóreo em área de cabruca na região cacaueira do sul da Bahia, Brasil Structure and dynamics of the tree community in a "cabruca" area in the cacao region of southern Bahia State, Brazil

open access: yesActa Botânica Brasílica, 2006
As cabrucas são áreas de cultivo onde o cacau foi implantado sob a sombra da floresta nativa raleada. Na região sul da Bahia, onde as florestas são poucas e fragmentadas, as cabrucas têm sido consideradas importantes para a conservação de espécies ...
Regina Helena Rosa Sambuichi
doaj   +1 more source

Florística e estrutura do componente arbustivo-arbóreo de uma floresta higrófila da bacia do rio Jacaré-Pepira, SP, Brasil Floristics and structure of the shrub and the tree-layer of a swamp forest in Jacaré-Pepira river, Southeastern Brazil

open access: yesActa Botânica Brasílica, 2003
As florestas higrófilas são formações ribeirinhas caracterizadas por ocorrerem em solo permanentemente encharcado e restritas a pequenos fragmentos junto a outros tipos vegetacionais.
Márcia C. M. Marques   +2 more
doaj   +1 more source

Woody expansion facilitates liana expansion and affects physical structure in temperate coastal communities

open access: yesEcosphere, 2016
Coastal ecosystems in general, and barrier islands in particular, offer unique opportunities to observe ecological patterns and processes in spatially and temporally compressed settings. Harsh abiotic conditions and frequent disturbances limit the number
Spencer N. Bissett   +2 more
doaj   +1 more source

Análise florística e estrutural de florestas riparias do alto Rio Paraná, Taquaruçu, MS Floristic and structural analyses of riparian forest of the "Alto Rio Paraná", Taquaruçu, MS

open access: yesActa Botânica Brasílica, 2000
Utilizando-se de método fitossociológico, foi realizado estudo comparativo entre três remanescentes de floresta riparia da margem direita do alto rio Paraná (22º43'-45'S; 53º15'-18'W).
Mariza Barion Romagnolo   +1 more
doaj   +1 more source

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