Results 1 to 10 of about 22,196,250 (317)
Distribution of Meiofauna in Bathyal Sediments Influenced by the Oxygen Minimum Zone Off Costa Rica
Frontiers in Marine Science, 2018 Ocean deoxygenation has become a topic of increasing concern because of its potential impacts on marine ecosystems, including oxygen minimum zone (OMZ) expansion and subsequent benthic effects.
Carlos Neira +4 more
doaj +1 more source
Acta Botânica Brasílica, 2004 Florestas ribeirinhas são caracterizadas por alta heterogeneidade ambiental, onde diferentes fatores físicos e bióticos regulam o mosaico vegetacional. Embora sejam áreas prioritárias à conservação, devido a sua fragilidade e importância, poucos estudos ...
Jean Carlos Budke +4 more
doaj +1 more source
Environmental Research Letters, 2013 Snow and ice algae are cold tolerant algae growing on the surface of snow and ice, and they play an important role in the carbon cycles for glaciers and snowfields in the world.
Nozomu Takeuchi
doaj +1 more source
Community structure and diversity of demersal fish assemblages: the role of fishery
Scientia Marina, 2004 Seasonal experimental trawl surveys were carried out in the Northern Aegean and Thracian seas (NE Mediterranean, Greece), from summer 1990 to autumn 1993, during which a total of 172 fish species were caught. In these areas, fishing pressure is very high,
Mary Labropoulou +1 more
doaj +1 more source
Brazilian Archives of Biology and Technology, 2008 This study had the objective of assessing the differences in foraging activity of the predacious ants between two areas, one conventional and other with no-till agriculture systems. The research was conducted in two contiguous 1.5 ha plots in Dourados MS,
Denise Lange +3 more
doaj +1 more source
Directed network Laplacians and random graph models
Royal Society Open Science, 2021 We consider spectral methods that uncover hidden structures in directed networks. We establish and exploit connections between node reordering via (a) minimizing an objective function and (b) maximizing the likelihood of a random graph model. We focus on
Xue Gong +2 more
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Extension of Modularity Density for Overlapping Community Structure [PDF]
, 2015 Modularity is widely used to effectively measure the strength of the disjoint community structure found by community detection algorithms. Although several overlapping extensions of modularity were proposed to measure the quality of overlapping community
Chen, Mingming +2 more
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Biodiversity and community structure [PDF]
Proceedings of the National Academy of Sciences, 2021 In natural plant communities, one finds ample examples of both competitive and facilitative interactions. The effect of a species A on another species B is said to be competitive (facilitative) if an increase in A ’s population size reduces (enhances) the population growth rate of B .
openaire +3 more sources
Sociobiology, 2014 We evaluated the effects of invasive red imported fire ants (RIFAs), Solenopsis invicta Buren, on native ant communities at three habitats in South China.
Yong Yue Lu +3 more
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Frontiers in Plant Science, 2021 Grazing exclusion is an effective management practice to restore grassland ecosystem functioning. However, little is known about the role of soil microbial communities in regulating grassland ecosystem functioning during long-term ecosystem restorations.
Zhen Wang +5 more
doaj +1 more source