Results 71 to 80 of about 13,655 (229)

Variety in evolutionary strategies favours biodiversity in habitats of moderate productivity [PDF]

open access: yes, 2011
The mechanism whereby biodiversity varies between habitats differing in productivity is a missing link between ecological and evolutionary theory with vital implications for biodiversity conservation, management and the assessment of ecosystem services ...
Simon Pierce
core   +1 more source

A survey of plant and algal genomes and transcriptomes reveals new insights into the evolution and function of the cellulose synthase superfamily [PDF]

open access: yes, 2014
Background Enzymes of the cellulose synthase (CesA) family and CesA-like (Csl) families are responsible for the synthesis of celluloses and hemicelluloses, and thus are of great interest to bioenergy research.
Cao, Huansheng   +3 more
core   +2 more sources

Lower competition in grasslands and higher facilitation in forests as potential drivers of the higher species richness of calcareous than siliceous communities

open access: yesOikos, Volume 2025, Issue 12, December 2025.
We tested the hypothesis that, in calcareous and siliceous ecosystems from the wet temperate climate of southwest France, competition primarily explains differences in community composition and species richness in grasslands but that facilitation is more determinant in forests. In a first experiment, we transplanted, in dry and wet years, grass species
Richard Michalet   +2 more
wiley   +1 more source

Distribuição e abundância do feto comum Pteridium aquilinum, na ilha do Pico [PDF]

open access: yes, 2006
XII Expedição Científica do Departamento de Biologia - Pico 2005.O nosso trabalho centrou-se na observação e quantificação da distribuição de Pteridium aquilinum, frequentemente conhecido como feto comum, na ilha do Pico. Esta espécie é rica em compostos
Cordeiro, Nuno   +4 more
core  

Holocene Land‐Use and Climate Forcing of Ombrotrophic Peatland Dynamics in Northwest Estonia

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 130, Issue 12, December 2025.
Abstract We present a high‐resolution, multi‐proxy record from Mustjärve bog, northwest Estonia, covering the past ∼2,500 years. By integrating paleoecological, historical, and climate data, we evaluate how climate and land use shaped peatland hydrology, vegetation, and carbon dynamics.
Harry Roberts   +9 more
wiley   +1 more source

Hematologycal, biochemical, Urinary and histopathological changes in natural intoxication in bovine by bracken fern (Pteridium aquilinum) (L.) Kühn/
Alterações hematológicas, bioquímicas, urinárias e histopatológicas na intoxicação natural em bovinos pela samambaia Pteridium aquilnum (L.) Kühn

open access: yesSemina: Ciências Agrárias, 2005
Enzootic hematuria is a cronic disease of cows clinically characterized by intermittent hematuria that can be caused by bracken fern (Pteridium aquilinum) and the papilomatosis virus.
Itacir Eloi Sandini   +6 more
doaj   +1 more source

A classe Cytisetea scopario-striati em Portugal continental [PDF]

open access: yes, 2003
Giestais são a designação vulgar em português para as comunidades silicícolas que se inserem na classe Cytisetea scopario-striati e são dominadas por espécies de leguminosas dos géneros Cytisus, Genista, Adenocarpus e Retama.
Aguiar, Carlos   +7 more
core  

Serial section videography (SSV): A low‐cost protocol for generating 3D reconstructions of internal plant structure

open access: yesApplications in Plant Sciences, Volume 13, Issue 6, November-December 2025.
Abstract Premise Analyzing structural changes along the length of an organ provides insight into its development. However, traditional histological methods are limited by intensive procedures and size restrictions. Micro‐computed tomography (microCT) enables non‐destructive internal imaging along the length of an organ, but high cost, technical ...
Jacob S. Suissa, Giselle Reyes
wiley   +1 more source

First Report of Colletotrichum siamense and Description of Lasiodiplodia adeniicola sp. nov. Causing Leaf Spot on Desert Rose in Brazil

open access: yesJournal of Phytopathology, Volume 173, Issue 6, November/December 2025.
ABSTRACT In July 2021, desert rose plants were consistently observed with symptoms of brown spots on the leaves, which coalesced and promoted leaf fall. The causal agent of the disease was unknown. This study aimed to identify the pathogen responsible for the symptoms through morphological and molecular characterisation, as well as pathogenicity tests.
Alan Izaías dos Santos Carvalho   +5 more
wiley   +1 more source

Taxonomic results of the Bryotrop expedition to Zaire and Rwanda : 3., description of dollecting sites, the vegetation of Kahuzi-Biega-National Park/Zaire, Nyungwe Forest and Virunga volcanoes/Rwanda [PDF]

open access: yes, 1993
During the BRYOTROP-Expedition in 1991, 71 collecting sites could be visited. These are situated in the Kahuzi-Biega-National Park/Zaire, the Nyungwe Forest and the Virunga volcanoes/Rwanda.
Fischer, Eberhard
core  

Home - About - Disclaimer - Privacy