Results 221 to 230 of about 233,008 (296)

Distilling food web dynamics: top–down and bottom–up drivers of extinction and trophic cascades

Oikos, EarlyView.
Quantifying population dynamics is a fundamental challenge in ecology and evolutionary biology, particularly for species that are cryptic, microscopic, or extinct. Traditional approaches rely on continuous representations of population size, but in many cases, the precise number of individuals is unknowable.
Justin D. Yeakel
wiley   +1 more source

Reduced intraspecific variation in lake trout food webs under warmer temperatures and smaller ecosystem sizes. [PDF]

Ecology
Kotsopoulos CJ, Gutgesell M, Guzzo MM, Johnston TA, Tunney TD, Bartley TJ, McMeans BC, Ridgway MS, Blanchfield PJ, Fisk AT, McCann KS.   +10 more
europepmc   +1 more source

Overexploitation can counteract top‐down control and the paradox of enrichment in simple food chains

Oikos, EarlyView.
Because of its high abundance or its high feeding intensity, a consumer can overexploit its resource by consuming it on a shorter timescale than resource regeneration. While this short‐term overexploitation is widespread in nature, its general implications for biotic control patterns and ecosystem stability are not clear.
Josquin Guerber, Nicolas Loeuille, Isabelle Gounand   +2 more
wiley   +1 more source

Environmental DNA Metabarcoding Reveals Divergent Patterns of Biodiversity, Community Assembly, and Environmental Sensitivity Across Taxa in Adjacent Rivers. [PDF]

Biology (Basel)
Wei Y, Zhang J, Wang S, Tian Z, Lin X, Yu Y, Bai Y.   +6 more
europepmc   +1 more source

Ecosystem size reverses the effect of the spatial coupling between autotrophic and heterotrophic ecosystems

Oikos, EarlyView.
The flow of non‐living resources between autotrophic and heterotrophic ecosystems can impact their ecosystem function. However, ecosystem size is similarly known to influence ecological properties and it is uncertain how the size of coupled ecosystems mediates the effect of resource flows.
Emanuele Giacomuzzo, Tianna Peller, Isabelle Gounand, Florian Altermatt   +3 more
wiley   +1 more source

Trophic niche partitioning in giant clams. [PDF]

Commun Biol
Guibert I, Conti-Jerpe IE, Pons L, Tayaban K, Sayco SL, Cabaitan P, Conaco C, Baker DM.   +7 more
europepmc   +1 more source

Frugivory‐mediated trophic cascades: how apex predators can shape the recruitment of a fleshy‐fruited tree

Oikos, EarlyView.
The recovery of large carnivores offers unique opportunities to study their cascading impacts on plant population dynamics. Medium‐sized carnivores, both prey and seed dispersers, are suppressed by apex predators, indirectly increasing seed‐eating rodent's populations and potentially altering plant establishment.
Tamara Burgos, Jose María Fedriani, Gema Escribano‐Ávila, Emilio Virgós   +3 more
wiley   +1 more source

Dynamical complexity of a three species food chain model incorporating delays and toxic habitat. [PDF]

Sci Rep
Thommandru DR, Sarkar A, Mondal B, Kundu S.   +3 more
europepmc   +1 more source

Seasonal variations in planktonic food web structure affect stability by shifting the distribution of energy fluxes

Oikos, EarlyView.
Seasonality in temperate ecosystems shapes species phenology, influencing interactions and food web structure. Variations in species richness and biomass affect trophic interaction strength, a crucial factor for community stability, which can be assessed through energy fluxes – an essential indicator of ecosystem function.
Simon Bazin, Isabelle Domaizon, Cécilia Barouillet, Victor Frossard, Arnaud Sentis   +4 more
wiley   +1 more source