Results 91 to 100 of about 68,675 (329)

Effects of competition and predation risk from a life history intraguild predator on individual specialisation

open access: yesJournal of Animal Ecology, EarlyView.
Individual niche specialisation is widespread within animal populations and can have important ecological consequences. Predation and competition are known drivers of individual specialisation, but their combined effects are unstudied. This mesocosm experiment shows that competition and predation from a single antagonist can have variable effects on ...
Marine R. A. Richarson, Travis Ingram
wiley   +1 more source

Eurasian watermilfoil biomass associated with insect herbivores in New York [PDF]

open access: yes, 2000
A study of aquatic plant biomass within Cayuga Lake, New York spans twelve years from 1987-1998. The exotic Eurasian watermilfoil ( Myriophyllum spicatum L.) decreased in the northwest end of the lake from 55% of the total biomass in 1987 to 0.4 ...
Hairston, Nelson G.   +3 more
core  

Ecological biomechanics of marine macrophytes

open access: yesJournal of Experimental Botany, 2022
AbstractMacroalgae and seagrasses in coastal habitats are exposed to turbulent water currents and waves that deform them and can rip them off the substratum, but that also transport essential water-borne substances to them and disperse their propagules and wastes.
openaire   +2 more sources

Contrasting effects of rhizosphere and sediment microbiota on seagrass performance in response to a simulated marine heatwave

open access: yesJournal of Ecology, EarlyView.
We experimentally disrupted below‐ground microbial communities to test their role in the growth and survival of the seagrass Zostera muelleri under two marine heatwave scenarios. Seagrass leaf growth declined with rhizosphere microbiome disruption across all temperature and sediment conditions.
Renske Jongen   +5 more
wiley   +1 more source

Modelling fixed plant and algal dynamics in rivers: an application to the River Frome [PDF]

open access: yes, 2010
The development of eutrophication in river systems is poorly understood given the complex relationship between fixed plants, algae, hydrodynamics, water chemistry and solar radiation.
Heppell, C. M.   +3 more
core  

All‐in‐one, versatile and low‐cost experimental set‐up to implement environmental stochasticity in mesocosms (PiStoch)

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Environmental stochasticity in abiotic factors is inherent to ecosystems and is exacerbated by global change. However, experimental protocols typically cancel this factor by using cyclic or constant conditions, limiting the study of environmental variations.
Chloé Souques   +7 more
wiley   +1 more source

Effects of water temperature on summer periphyton biomass in shallow lakes: a pan-European mesocosm experiment [PDF]

open access: yes, 2015
Periphyton communities play an important role in shallow lakes and are controlled by direct forces such as temperature, light, nutrients, and invertebrate grazing, but also indirectly by planktivorous fish predation.
Adrian, Rita   +9 more
core   +1 more source

Integrating ecological feedbacks across scales and levels of organization

open access: yesEcography, EarlyView.
In ecosystems, species interact in various ways with other species, and with their local environment. In addition, ecosystems are coupled in space by diverse types of flows. From these links connecting different ecological entities can emerge circular pathways of indirect effects: feedback loops.
Benoît Pichon   +4 more
wiley   +1 more source

Population parameters of two water scavenger beetles: Derallus angustus Sharp, 1882 and Enochrus vulgaris (Steinheil, 1869) (Coleoptera: Hydrophilidae) in permanent ponds: spatial distribution and microhabitat preference

open access: yesTropical Zoology, 2016
The spatial distribution, temporal variation, and microhabitat preference of two populations of aquatic Coleoptera were analysed in permanent ponds located in the province of Corrientes, Argentina.
Maria Constanza Gómez Lutz   +1 more
doaj  

Macrophytes as biological indicators of organic pollution in the Lepenci River Basin in Kosovo

open access: yesJournal of Freshwater Ecology, 2020
Macrophytes represent one part of the biological quality elements defined by the European Water Framework Directive (WFD) as ‘macrophytes and phytobenthos’.
Pajtim Bytyqi   +8 more
doaj   +1 more source

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