Results 61 to 70 of about 46,939 (294)
"Rapid and dramatic changes in vegetation" of a small pond on Holy Island (Northumbria): Chaotic dynamics? [PDF]
This note describes changes to the relative extent of four structurally dominant submerged macrophytes in a pond on Holy Island National Nature Reserve, Northumbria, between 1991 and 1998.
Jeffries, Michael
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Temporal community change in stream ecosystems varies by assemblage across US climates
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecosystem properties are temporally dynamic. Temporal variability has been shown to decrease with increasing levels of biological organization (i.e. from population to community and ecosystem levels).
Megan C. Malish +6 more
wiley +1 more source
Espèces invasives déjà bien connues car particulièrement problématiques dans les hydrosystèmes, les Jussies (Ludwigia spp.) continuent de surprendre à la fois les gestionnaires et les chercheurs par leurs capacités de colonisation de nouveaux biotopes ...
J. HAURY, J.P. DAMIEN
doaj +1 more source
Patches in a side-by-side configuration: a description of the flow and deposition fields [PDF]
In the last few decades, a lot of research attention has been paid to flow-vegetation interactions. Starting with the description of the flow field around uniform macrophyte stands, research has evolved more recently to the description of flow fields ...
Bouma T.J. +9 more
core +1 more source
A global estimator of C and N isotope baselines for fresh waters
Abstract Baselines are the pebbles in the shoes of isotope ecologists. The extreme variability of the isotope composition of resources at the base of food webs governs the spatial differences of consumers' isotope composition, so that isotope‐inferred trophic properties can be compared across ecosystems only after correction for baseline effects ...
Marie‐Elodie Perga +7 more
wiley +1 more source
Ailleurs en Europe - Gestion des plantes exotiques envahissantes en Grande-Bretagne
La passion des anglais pour le jardinage a eu pour conséquence l'établissement de nombreuses plantes exotiques de jardin et de bassin en milieu naturel dans tout le Royaume-Uni.
T. RENALS
doaj +1 more source
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota +4 more
wiley +1 more source
Bioerosional scars made by limpets (Patella) on a cliff in Co. Antrim, Northern Ireland, indicate a Mid‐Holocene RSL of +7.8±0.55 m relative to local mid‐tide level today. This is higher than previous empirical data for the region and extrapolated levels from raised shorelines in Scotland but consistent with some recent GIA models.
Michael J. Simms, Paula J. Reimer
wiley +1 more source
Currently, reviews focusing on the distribution of macrophytes focus primarily on large water bodies, regardless of the fact that small water bodies (SWBs), such as ponds, ditches and streams, often support higher levels of gamma macrophyte richness ...
Isabel Navarro Law +4 more
doaj +1 more source
Ecological study of chalk streams. Lambourn project. Interim report October 1977 to April 1979 [PDF]
Few detailed studies have been made on the ecology of the chalk streams. A complex community of plants and animals is present and much more information is required to achieve an understanding of the requirements and interactions of all the species. It is
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