Results 61 to 70 of about 23,964 (273)

Stomach content analyses of Simulium perflavum Roubaud 1906 (Diptera: Simuliidae) larvae from streams in Central Amazônia, Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
Stomach contents of Simulium perflavum Roubaud larvae were analyzed and compared with plankton and periphyton collected in five streams, in Central Amazonia (Manaus and Presidente Figueiredo counties), in Sep./Oct.1996 (dry season) and Feb./Mar.
Yamile B Alencar   +3 more
doaj   +1 more source

Temporal community change in stream ecosystems varies by assemblage across US climates

open access: yesFunctional Ecology, EarlyView.
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

Artificial light at night and invasive signal crayfish alter aquatic‐terrestrial food webs

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Resource flows across aquatic‐terrestrial boundaries are increasingly affected by multiple stressors, such as artificial light at night (ALAN) and aquatic invasive species, which can alter the availability of resources for consumers.
Collins Ogbeide   +9 more
wiley   +1 more source

Carbonate sediment production in coastal wetlands: Periphyton contributions and diatom indicators

open access: yesEcological Indicators
Coastal ecosystems rapidly transform as sea levels rise faster than ecosystems can build elevation through biological processes that accrete organic matter and inorganic sediment.
Samantha Hormiga   +4 more
doaj   +1 more source

Food web architecture and basal resources interact to determine biomass and stoichiometric cascades along a benthic food web. [PDF]

open access: yesPLoS ONE, 2011
Understanding the effects of predators and resources on primary producers has been a major focus of interest in ecology. Within this context, the trophic cascade concept especially concerning the pelagic zone of lakes has been the focus of the majority ...
Rafael D Guariento   +5 more
doaj   +1 more source

Longitudinal patterns in an Arkansas River Valley stream: an Application of the River Continuum Concept [PDF]

open access: yes, 2017
The River Continuum Concept (RCC) provides the framework for studying how lotic ecosystems vary from headwater streams to large rivers. The RCC was developed in streams in eastern deciduous forests of North America, but watershed characteristics and land
Adams, S. R.   +9 more
core   +3 more sources

Invasive goldfish trigger a regime shift in experimental lake ecosystems of varying trophic state

open access: yesJournal of Animal Ecology, EarlyView.
The pet trade distributes exotic animals around the globe that enrich human lives. However, some pets become pests when released into the wild. This study provides experimental evidence that goldfish will negatively affect native freshwater organisms and ecosystems.
William D. Hintz   +2 more
wiley   +1 more source

The relationship between epilithic biofilm stability and its associated meiofauna under two patterns of flood disturbance [PDF]

open access: yes, 2012
Habitat stability is an important driver of ecological community composition and development. River epilithic biofilms are particularly unstable habitats for the establishment of benthic communities because they are regularly disturbed by floods. Our aim
Boulêtreau, Stéphanie   +9 more
core   +4 more sources

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus

open access: yesJournal of Fish Biology, EarlyView.
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Alexandre Peressin   +6 more
wiley   +1 more source

Comparison of Periphyton Biomass on Coconut Coir and Bamboo Poles as Natural Substrates in Earthen Lined Pond

open access: yesInternational Journal of Bio-Resource and Stress Management, 2020
As a first step in assessing the viability of periphyton-based shrimp production in lined pond aquaculture systems, the effects of natural substrates (split bamboo poles and coconut coir) on development of periphyton were evaluated.
A. Anix   +3 more
doaj  

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