Results 131 to 140 of about 61,462 (287)

Relative influence of inter- and intraspecific competition in an ungulate assemblage modified by introduced species. [PDF]

J Mammal, 2023
Zini V, Wäber K, Dolman PM.
europepmc   +1 more source

Linking regional and global functional trait data: insights from mammal communities in a fragmented Atlantic Forest landscape

Oikos, EarlyView.
Accurate functional trait data are essential for understanding ecosystem services and processes in fragmented landscapes. We evaluated whether the global EltonTraits 1.0 database adequately represents the functional structure of mammal communities in forest fragments and restoration sites in a highly fragmented Atlantic Forest landscape.
Maria F. R. Godoi, Fábio Z. Farneda, Alan D. Pereira, Marcos Akira‐ Umeno, Fernanda C. Marques, Marcos Robalinho Lima   +5 more
wiley   +1 more source

Functional Response and Intraspecific Competition of Three Ladybird Species Feeding on Aphids on Goji Berry Plants in Laboratory and Semi-Field Conditions. [PDF]

Insects, 2023
Wu P, He J, Dong H, Zhang R.
europepmc   +1 more source

Complex dynamics in coevolution models with ratio-dependent functional response

, 2009
We explore the complex dynamical behavior of two simple predator-prey models of biological coevolution that on the ecological level account for interspecific and intraspecific competition, as well as adaptive foraging behavior.
Bascompte, Caldarelli, Chowdhury, Chowdhury, Christensen, Crosby, di Collobiano, Drossel, Drossel, Eigen, Eigen, Filotas, Gavrilets, Gavrilets, Gavrilets, Getz, Hall, Kauffman, Kauffman, Krebs, Krebs, Kuang, Martinez, Murray, Namba, Newman, Newman, Nunes Amaral, Per Arne Rikvold, Procaccia, Qin, Quince, Quince, Resit, Rikvold, Rikvold, Rikvold, Rikvold, Rossberg, Rossberg, Sevim, Skalski, Solé, Thompson, Thompson, Verhulst, Yoshida, Yoshida, Zia   +48 more
core   +1 more source

Inequalities in intraspecific plant–lemur interactions drive seed dispersal patterns

Oikos, EarlyView.
Biotic interactions occur between individuals and accumulate to shape species‐level interaction structure across a community. Skewed interaction structures, where a few individuals are highly connected and most have few interactions, are increasingly identified at the individual‐level.
Jadelys Tonos, Hasinavalona Rakotoarisoa, Onja H. Razafindratsima   +2 more
wiley   +1 more source

Xtrawood: refining estimation of tree above ground biomass using wood specific gravity variations and tree structure [PDF]

, 2016
Background: Tree above ground biomass (AGB) is currently estimated by tree-level allometrical models that take into account, tree volume estimated from proxy variables of tree size (DBH) and species average wood specific gravity (WSG).
Barczi, Jean-François, Beauchêne, Jacques, Bossu, Julie, Griffon, Sébastien, Lehnebach, Romain, Morel, Hélène, Nicolini, Eric-André   +6 more
core  

Temporal changes in the dietary niche of sympatric seals provides insight into the role of competition in population declines

Oikos, EarlyView.
Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley, Philip S. Hammond, Paul M. Thompson, Graham J. Pierce, Lindsay J. Wilson, Ailsa J. Hall, Gordon D. Hastie, Debbie J. F. Russell   +7 more
wiley   +1 more source

The niche variation hypothesis predicts hunting returns across human cultures

Oikos, EarlyView.
The niche variation hypothesis (NVH) proposes that a broader population niche arises from greater individual specialization. Despite decades of empirical testing, research remains constrained to non‐human foragers, and the generality of NVH may extend beyond wildlife. The analysis of > 8000 hunting records from 12 human societies across four continents
Raul Costa‐Pereira
wiley   +1 more source

Effects of intraspecific competition and body mass on diet specialization in a mammalian scavenger. [PDF]

Ecol Evol, 2022
Lewis AC, Hughes C, Rogers TL.
europepmc   +1 more source

Urban‐driven homogenization of aquatic subsidy size structure cascades to riparian predator communities

Oikos, EarlyView.
The export of emergent aquatic insects is a critical energy subsidy for terrestrial food webs. While urbanization is known to alter stream communities, its effects on the size structure of these insect subsidies and the subsequent consequences for riparian predators remain poorly understood.
Charles Gagnon, Louis‐Philippe Beauchamp, Eric Harvey   +2 more
wiley   +1 more source