Results 31 to 40 of about 2,145 (262)

Socio-Environmental Dynamics of Alpine Grasslands, Steppes and Meadows of the Qinghai–Tibetan Plateau, China: A Commentary

open access: yesApplied Sciences, 2020
Alpine grasslands are a common feature on the extensive (2.6 million km2) Qinghai–Tibet plateau in western and southwestern China. These grasslands are characterized by their ability to thrive at high altitudes and in areas with short growing seasons and
Haiying Feng, Victor R. Squires
doaj   +1 more source

Epiphytic Diatoms from the Central Region of the Gulf of California: Floristics and Biogeographic Remarks

open access: yes, 2023
The ecological significance of benthic diatom taxocoenoses in marine ecosystems renders them a suitable reference when making decisions on conservation, as well as ecological and biogeographical issues.
Yuriko Jocselin Martínez   +2 more
core   +1 more source

Age‐related trends in niche position and specialization in Neotropical vertebrates

open access: yesEcography, EarlyView.
Species' niche positions and breadths within a region's environmental space, measured through ecological niche factor analysis (ENFA) as marginality and specialization, can reflect evolutionary constraints related to lineage age. The ‘internal incumbency' hypothesis predicts that older species, due to competitive preemption, occupy more central niche ...
Carlos Calderón del Cid   +3 more
wiley   +1 more source

A wide range of South American inselberg floras reveal cohesive biome patterns

open access: yesFrontiers in Plant Science, 2022
Inselbergs are azonal formations found scattered in different biomes globally. The first floristic list focusing on an inselberg in the Brazilian Amazon is presented here.
Rafael Gomes Barbosa-Silva   +13 more
doaj   +1 more source

A practical guide to species trend detection with unstructured data using local frequency scaling (Frescalo)

open access: yesEcography, EarlyView.
Accurately measuring biodiversity change remains a central challenge in ecology. Beyond the general idea of quantifying temporal species frequency changes, several sampling‐related biases in data collection remain key methodological challenges to consider. Long‐term standardized ecological data are rare, and most available datasets exhibit considerable
Romain Goury   +7 more
wiley   +1 more source

Composição florística de uma floresta ripária na Reserva Estadual de Porto Ferreira, SP Floristic composition of a riparian forest area in Porto Ferreira State Reserve, State of São Paulo, S.E. Brasil

open access: yesActa Botânica Brasílica, 1987
Aplicou-se o método de quadrantes (63 pontos) na Reserva Estadual de Porto Ferreira (21º49'S e 47º25'W), numa área (l,08ha) à margem direita do rio Moji Guaçu, amostrando dois indivíduos lenhosos em cada quadrante: um com fuste mínimo de 130cm e DAP < 10
José Eduardo de Arruda Bertoni   +1 more
doaj   +1 more source

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

Underground Lag: Fungal Community and Edaphic Legacies After Disturbance

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Páramos are neotropical mountain ecosystems that regulate water and store large amounts of carbon, but are increasingly degraded by agriculture and grazing. Although native vegetation often recolonizes after abandonment, belowground recovery remains poorly understood.
Wilmer Dajhan Navarrete‐López   +6 more
wiley   +1 more source

Woody flora of the Prof. Dr. Karl Arens Reserve, Corumbataí, São Paulo, Brazil [PDF]

open access: yesBiodiversity Data Journal
This study was conducted in the Prof. Dr. Karl Arens Reserve, Corumbataí, São Paulo. The area is a Cerrado fragment, with no records of fire since 1962 and is characterised by the predominance of Cerradão phytophysiognomy.
Lilian Santos, Pedro Luís de Moraes
doaj   +3 more sources

Regional Ecosystems (RE) potentially replaced by mining rehabilitated areas and description of their floristics.

open access: yes, 2013
Regional Ecosystems (RE) potentially replaced by mining rehabilitated areas and description of their floristics.
Céline Frère (489487)   +3 more
core   +1 more source

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