Results 31 to 40 of about 3,076 (200)

Human Impacts and Climate Change Influence Nestedness and Modularity in Food-Web and Mutualistic Networks. [PDF]

PLoS ONE, 2016
Theoretical studies have indicated that nestedness and modularity-non-random structural patterns of ecological networks-influence the stability of ecosystems against perturbations; as such, climate change and human activity, as well as other sources of ...
Kazuhiro Takemoto, Kosuke Kajihara
doaj   +1 more source

Food Web Topology and Nested Keystone Species Complexes

Complexity, 2018
Important species may be in critically central network positions in ecological interaction networks. Beyond quantifying which one is the most central species in a food web, a multinode approach can identify the key sets of the most central n species as ...
Daniele Capocefalo, Juliana Pereira, Tommaso Mazza, Ferenc Jordán   +3 more
doaj   +1 more source

Which Matrices Show Perfect Nestedness or the Absence of Nestedness? An Analytical Study on the Performance of NODF and WNODF

Biomath, 2016
Nestedness is a concept employed to describe a particular pattern of organization in species interaction networks and in site-by-species incidence matrices.
Nicholas Britton, Mario Almeida Neto, Gilberto Corso   +2 more
doaj   +1 more source

Nestedness of benthic diatom metacommunity in relation to species niche width and environmental variables in a large near-natural catchment

Frontiers in Ecology and Evolution
Insight into the non-random distribution patterns of species in different regions is a foundational aim of research in community ecology and biogeography.
Xinxin Qi, Xinxin Qi, Guohao Liu, Guohao Liu, Chuanwu Chen, Yixia Wang, Yixia Wang, Yaochun Wang, Yaochun Wang, Zongwei Lin, Zongwei Lin, Naicheng Wu, Naicheng Wu   +12 more
doaj   +1 more source

Downstream Changes in Odonate (Insecta: Odonata) Communities along a Suburban to Urban Gradient: Untangling Natural and Anthropogenic Effects

Insects, 2021
The community structure of lotic odonates (Insecta: Odonata) changes downstream, but it is difficult to untangle natural and anthropogenic causes. We surveyed larvae and adults at 15 sites along the Reedy River in Greenville Co., SC, USA, from sites in ...
Wade B. Worthen, R. Kile Fravel, Connor P. Horne   +2 more
doaj   +1 more source

Abundant and Rare Bacterial Taxa Structuring Differently in Sediment and Water in Thermokarst Lakes in the Yellow River Source Area, Qinghai-Tibet Plateau

Frontiers in Microbiology, 2022
Thermokarst lakes are forming from permafrost thaw and are severely affected by accelerating climate change. Sediment and water in these lakes are distinct habitats but closely connected. However, our understanding of the differences and linkages between
Ze Ren, Ze Ren, Cheng Zhang, Cheng Zhang, Xia Li, Xia Li, Kang Ma, Baoshan Cui, Baoshan Cui   +8 more
doaj   +1 more source

Dietary partitioning mediates species coexistence in the high seas area of northwest Pacific

Ecography, EarlyView.
Niche partitioning, manifesting along various axes of the ecological niche, is a fundamental mechanism mediating species coexistence in a system. However, the emergence of many species in marine ecosystems would face considerable constraints in achieving coexistence through spatiotemporal differentiation mechanisms under the framework of niche ...
Na Zang, Bilin Liu, Wenjun Zheng, Yushuang Luo, André E. Punt, Xinjun Chen, Dongming Lin   +6 more
wiley   +1 more source

Nestedness and beta diversity of gastrointestinal helminth communities in common warthogs, Phacochoerus africanus (Suidae), at 2 localities in South Africa

Parasitology, 2023
Few studies have investigated the ecological interactions between wild species of Suidae and their parasites, leaving our knowledge concerning this host–parasite system fragmented.
Kerstin Junker, Ivan G. Horak, Joop Boomker, Boris R. Krasnov   +3 more
doaj   +1 more source

Latitudinal effect on the structure of snake–prey interaction networks is mediated by snake species richness

Ecography, EarlyView.
Despite the growing number of studies on trophic networks in recent decades, there are still important gaps in our understanding of how these networks are structured across broad environmental gradients. These gaps are even greater in some groups of terrestrial vertebrates, such as snakes, requiring a cohesive synthesis of their broader trophic ...
Daniela Pinto‐Coelho, Kate P. Maia, Laura R. V. Alencar, Marcio Martins, Paulo R. Guimarães   +4 more
wiley   +1 more source

Effects of spatial distance and woody plant cover on beta diversity point to dispersal limitation as a driver of community assembly during postfire succession in a Mediterranean shrubland

Ecology and Evolution, 2022
Beta diversity, and its components of turnover and nestedness, reflects the processes governing community assembly, such as dispersal limitation or biotic interactions, but it is unclear how they operate at the local scale and how their role changes ...
Iván Torres, Antonio Parra, José M. Moreno   +2 more
doaj   +1 more source