Results 51 to 60 of about 3,699,060 (249)

Pollen Morphology of Crucianella L. (Rubiaceae) Based on Light and Scanning Electron Microscope Data and Implications for Taxonomy

open access: yesMicroscopy Research and Technique, EarlyView.
This study provides the palynological analysis of 12 Crucianella L. taxa using LM and SEM. Variations in pollen size, aperture number, and exine ornamentation were identified as key traits, demonstrating their taxonomic value for distinguishing closely related species and subspecies within the genus. ABSTRACT Crucianella L.
Sevcan Celenk   +3 more
wiley   +1 more source

Phytosociological importance of an ombrophilous forest fragment in the State of Roraima, Brazil = Importância fitossociológica de um fragmento de floresta ombrófila densa no estado de Roraima, Brasil

open access: yesAgro@mbiente On-line, 2016
The aim of this study was to characterise the phytosociology of a fragment of native forest in the town of Caroebe, in the State of Roraima, Brazil. All trees with a DBH ≥ 15 cm were inventoried in 18 permanent plots of 15 x 20 m (300 m²). There were 175
Luiz Fernandes Silva Dionisio   +5 more
doaj   +1 more source

Floristic composition and plant community analysis of vegetation in Ilu Gelan district, West Shewa Zone of Oromia region, Central Ethiopia

open access: yes, 2017
This study was conducted on Dirki and Jato sites vegetation in Ilu Gelan district, west Shewa zone of Oromia region, 195 km west of Addis Ababa, to identify floristic composition and plant community types the vegetation.
Z. Tadesse, E. Kelbessa, T. Bekele
semanticscholar   +1 more source

First report on the soil seed bank damage due to fire at the Rohingya refugee camps in Bangladesh

open access: yesJSFA reports, EarlyView.
Abstract Background The composition, density, and damage of the soil seed bank were studied at Kutupalong Rohingya refugee camp (the world's largest refugee settlement), Ukhiya, Cox's Bazar, Bangladesh, after a major human‐induced fire on March 22, 2021, causing huge damage to human lives, settlements, and the ecosystem.
Mohammad Golam Kibria   +3 more
wiley   +1 more source

FLORISTIC COMPOSITION AND PLANT COMMUNITY TYPES IN MAZE NATIONAL PARK, SOUTHWEST ETHIOPIA

open access: yes, 2017
Ethiopia has established protected areas throughout the country and designated many areas of land in order to conserve the natural resources and biodiversity.
M. Siraj
semanticscholar   +1 more source

Soil physicochemical properties and floristic composition of two ecosystems differing in plant diversity: fallows and meadows

open access: yesPlant and Soil, 2016
European farmland has been abandoned at an unprecedented rate over the last few decades, resulting in an increase of the area of fallows and a decrease in plant diversity in meadows.
D. Chmolowska, M. Kozak, R. Laskowski
semanticscholar   +1 more source

Native Perennial Vegetation Buffer Strips Improve Structural Indicators of Riparian Protection in Mediterranean Agroecosystems

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Riparian zones in Mediterranean agroecosystems are highly vulnerable to degradation because cultivation often reaches stream edges and annual vegetation senesces during the late‐summer dry period, leaving soils exposed when the first erosive autumn rains occur.
Marcelo Sternberg   +4 more
wiley   +1 more source

Using floristic data to shed light on the origin of flora in the poorly studied common cypress habitats of Northern Iran

open access: yesScientific Reports
Despite the ecological importance, there is a large knowledge gap on different habitat types of the Hyrcanian World Heritage. The Hyrcanian Common Cypress Habitats (HCCHs), the easternmost part of the Common Cypress habitats in the world, are one of ...
Tayebeh Amini   +2 more
doaj   +1 more source

Aspects of Orchidaceae distribution in Costa Rica and northwestern South America: a study on similarity with emphasis on the Amazonian Region

open access: yesHoehnea
The purpose of this study was to compare the floristic composition of Orchidaceae among different areas of Costa Rica and northwestern South America, aiming to answer the following questions: 1) Is the variation in the species composition among the study
Edlley Max Pessoa   +2 more
doaj   +1 more source

Vascular epiphytic component of “Brejo de altitude” in northeastern Brazil: floristic composition and phytosociological structure

open access: yesBiotemas, 2021
The Brazilian Northeastern Brejos is an important area of biodiversity in the Atlantic Forest. However, little is known about the species composition of epiphytes in this type of vegetation.
Randolpho Gonçalves Dias-Terceiro   +5 more
doaj   +1 more source

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