Results 71 to 80 of about 14,464 (220)
Contributo alla conoscenza di taxa endemici della Sicilia attraverso l'analisis morfobiometrica del polline [PDF]
, 1989 E caratterizzato il polline di Otto taxa endemici mediante indagine biometrica al microscopio ottico ed analisi dell'ultrastruttura dello sporoderma al microscopio elettronico a scansione ed a trasmissione.
De Leonardis, Walter +3 more
core +4 more sources
Grassland Research, Volume 4, Issue 2, Page 105-120, June 2025.According to the disturbance gradient, the species richness of herbaceous vegetation increased from fenced (less disturbed) to fallow (most disturbed). The pastoral value and biomass production of grazing land were higher in protected areas (fenced land) than in unprotected areas (community forests and fallow land), suggesting that conservation ...
Issouf Zerbo +4 more
wiley +1 more source
RodriguésiaNo presente trabalho os autores apresentam o estudo do padrão de nervação e epidermes foliares das espécies da série Timoutoideae Chod. (Polygala L.) do Brasil.
José Fernando A. Baumgratz +1 more
doaj +1 more source
3-Hydroxy-1,2-dimethoxyxanthone
Acta Crystallographica Section E, 2011 The title compound (systematic name: 3-hydroxy-1,2-dimethoxy-9H-xanthen-9-one), C15H12O5, was isolated from Polygala arillata. The tricyclic unit is essentially planar (r.m.s. deviation = 0.039 Å).
Hui-Ping Xiong +3 more
doaj +1 more source
Bielefelder Botaniker zu Gast im Kreis Höxter [PDF]
, 2013 Unter Führung des bekannten Bryologen Dr. Fritz Koppe (1896 - 1981), von 1940 bis 1964 Vorsitzender des Naturwissenschaftlichen Vereins für Bielefeld und Umgegend, fand sich eine kleine Gruppe von Spezialisten zusammen, die in wechselnder Zusammensetzung
Lienenbecker, Heinz
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How urban proximity shapes agricultural pest dynamics: a review
Pest Management Science, Volume 81, Issue 6, Page 2704-2711, June 2025.This review explores how proximity to human settlements affects agricultural pest and pathogen dynamics, highlighting the roles of microclimatic conditions, biological aspects, and management effects. It underscores the need for integrated pest management strategies to address these complex interactions and enhance sustainable agriculture.
Lior Blank
wiley +1 more source
Plant β-diversity i in human-altered forest ecosystems: the importance of the structural, spatial, and topographical characteristics of stands in patterning plant species assemblages [PDF]
, 2014 An understanding of spatial patterns of plant species diversity and the factors that drive those patterns is critical for the development of appropriate biodiversity management in forest ecosystems.
Alados, Concepcion +3 more
core +2 more sources
Ecography, Volume 2025, Issue 6, June 2025.Pollinator choices when selecting flowers for nectar or pollen collection are crucial in determining the effectiveness of pollination services provided to plants. From the plant's perspective, this effectiveness is a phenomenon shaped by factors at both the species‐ (e.g.
Alfonso Allen‐Perkins +4 more
wiley +1 more source
Variáveis ambientais e a distribuição de espécies do estrato herbáceo-subarbustivo emuma área de campo limpo úmido no Distrito Federal, Brasil [PDF]
, 2008 O solo é sazonal ou permanentemente saturado nas savanas campestres úmidas, localmente conhecidas como Campo Limpo Úmido. A variação na umidade do solo parece determinar a distribuição espacial desta comunidade.
Felfili, Jeanine Maria +2 more
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Florística e fenologia reprodutiva de plantas vasculares na restinga do Parque Municipal das Dunas da Lagoa de Conceição, Florianópolis,SC [PDF]
, 2006 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas.
Guimarães, Thaís de Beauclair
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