Results 61 to 70 of about 14,017,981 (247)

Do submerged macrophyte species influence crustacean zooplankton functional group richness and their resource use efficiency in the low-light environment?

open access: yesFrontiers in Plant Science, 2023
During the high grazing of epiphytic zooplankton in submerged macrophyte beds, the changes in crustacean zooplankton functional groups are crucial for stabilizing a clear water state in shallow lakes.
Li Wang, Li Wang, Xufa Ma, Jun Chen
doaj   +1 more source

Ecological values of Hamilton urban streams (North Island, New Zealand): constraints and opportunities for restoration [PDF]

open access: yes, 2009
Urban streams globally are characterised by degraded habitat conditions and low aquatic biodiversity, but are increasingly becoming the focus of restoration activities.
Aldridge, Brenda Michelle Te Aroha   +6 more
core  

Power, Efficiency, Power Density and Ecological Function Optimization for an Irreversible Modified Closed Variable-Temperature Reservoir Regenerative Brayton Cycle with One Isothermal Heating Process

open access: yesEnergies, 2020
One or more isothermal heating process was introduced to modify single and regenerative Brayton cycles by some scholars, which effectively improved the thermal efficiency and significantly reduced the emissions. To analyze and optimize the performance of
Lingen Chen, Chenqi Tang, H. Feng, Y. Ge
semanticscholar   +1 more source

VEGETATION COMPOSITION ON ECOLOGICAL FUNCTION IN MATARAM MERAH PARK, JAKARTA

open access: yesBioLink, 2021
The existence of the city park is important for Jakarta as a metropolitan city with the current activity level of motor vehicles and air pollution greatly affects the quality of the city environment.
Nur Intan Mangunsong   +2 more
doaj   +1 more source

Ecological functions of zoosporic hyperparasites

open access: yesFrontiers in Microbiology, 2014
Zoosporic parasites have received increased attention during the last years, but it is still largely unnoted that these parasites can themselves be infected by hyperparasites. Some members of the Chytridiomycota, Blastocladiomycota, Cryptomycota, Hyphochytriomycota, Labyrinthulomycota, Oomycota, and Phytomyxea are hyperparasites of zoosporic hosts ...
Frank H Gleason   +7 more
openaire   +4 more sources

A first--order irreversible thermodynamic approach to a simple energy converter

open access: yes, 2007
Several authors have shown that dissipative thermal cycle models based on Finite-Time Thermodynamics exhibit loop-shaped curves of power output versus efficiency, such as it occurs with actual dissipative thermal engines.
A. L. Lehninger   +16 more
core   +1 more source

Spatial-temporal patterns and characteristics of ecological function between 2009 and 2015 in China

open access: yesEcological Indicators, 2020
Ecological function reflects the ability of the land to provide ecological goods to support high-quality human production and life. The evaluation of the county-level ecological function across the whole nation is crucial for sustainable land management,
H. Xia   +6 more
semanticscholar   +1 more source

Hydrological controls on river network connectivity [PDF]

open access: yes, 2019
This study proposes a probabilistic approach for the quantitative assessment of reach- and network-scale hydrological connectivity as dictated by river flow space–time variability. Spatial dynamics of daily streamflows are estimated based on climatic and
Botter, Gianluca   +3 more
core   +1 more source

A Look at Important Marine Areas in the U.S. Beaufort and Chukchi Seas: Ecologically rich places to protect in the Arctic Ocean [PDF]

open access: yes, 2016
Sound decision-making about the future of the U.S. Arctic Ocean must include an understanding of how its marine ecosystems function. Although all areas of the U.S. Chukchi and Beaufort seas contribute to ecological integrity, some are especially vital to

core  

A snake of a different color: physiological color change in Arizona black rattlesnakes [PDF]

open access: yes, 2011
Coloration may serve a variety of behavioral (e.g., crypsis, communication) and physiological (e.g., thermoregulation, protection) functions for terrestrial ectotherms. However, optimal coloration for a given function may vary over environments (spatial
Jeffrey J. Smith, Melissa Amarello
core   +2 more sources

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