Results 41 to 50 of about 12,989 (207)

Multidimensional nestedness patterns and underlying processes of bird assemblages in the Zhoushan Archipelago, China

Avian Research
Nestedness is one of the important patterns in island biogeography, community ecology and conservation biology. However, most previous nestedness studies focus on the taxonomic dimension while neglecting the functional and phylogenetic processes in ...
Yunhao Xu, Huiwen Zhu, Xingmin Chen, Jiang Wang, Yanping Wang   +4 more
doaj   +1 more source

Ecological analysis of world trade

, 2012
Ecological systems have a high level of complexity combined with stability and rich biodiversity. Recently, the analysis of their properties and evolution has been pushed forward on a basis of concept of mutualistic networks that provides a detailed ...
Bascompte, Bastolla, Burgos, Burgos, Burgos, Caldarelli, Central Intelligence Agency, D.L. Shepelyansky, Dorogovtsev, Ermann, Haldane, L. Ermann, May, May, May, Memmott, Olesen, Ott, Rezende, Rodríguez-Gironés, Saaverda, Vázquez   +21 more
core   +3 more sources

Temporal origin of nestedness in interaction networks

PNAS Nexus, 2023
AbstractNestedness is a common property of communication, finance, trade, and ecological networks. In networks with high levels of nestedness, the link positions of low-degree nodes (those with few links) form nested subsets of the link positions of high-degree nodes (those with many links), leading to matrix representations with characteristic upper ...
Phillip P A Staniczenko, Debabrata Panja
openaire   +5 more sources

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

Detecting early signs of the 2007-2008 crisis in the world trade [PDF]

, 2016
Since 2007, several contributions have tried to identify early-warning signals of the financial crisis. However, the vast majority of analyses has focused on financial systems and little theoretical work has been done on the economic counterpart.
Di Clemente, Riccardo, Gabrielli, Andrea, Saracco, Fabio, Squartini, Tiziano   +3 more
core   +2 more sources

On the Relatedness and Nestedness of Constraints [PDF]

Sports Medicine - Open, 2019
The purpose of this opinion paper is providing a platform for explaining and discussing the relatedness and nestedness of constraints on the basis of four claims: (a) task constraints are distributed between the person and the environment and hence are relational variables, (b) being relational, task constraints are also emergent properties of the ...
Natàlia Balagué, Rafel Pol, Carlota Torrents, Angel Ric, Robert Hristovski   +4 more
openaire   +4 more sources

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

A generalized framework for analyzing taxonomic, phylogenetic, and functional community structure based on presence-absence data [PDF]

, 2018
Community structure as summarized by presence–absence data is often evaluated via diversity measures by incorporating taxonomic, phylogenetic and functional information on the constituting species.
Pavoine, Sandrine, Podani, János, Ricotta, Carlo   +2 more
core   +3 more sources

Nestedness of Ectoparasite-Vertebrate Host Networks

PLoS ONE, 2009
Determining the structure of ectoparasite-host networks will enable disease ecologists to better understand and predict the spread of vector-borne diseases. If these networks have consistent properties, then studying the structure of well-understood networks could lead to extrapolation of these properties to others, including those that support ...
Sean P Graham, Hassan K Hassan, Nathan D Burkett-Cadena, Craig Guyer, Thomas R Unnasch   +4 more
openaire   +4 more sources