Results 11 to 20 of about 988,686 (289)

Apparent Competition

open access: yesAnnual Review of Ecology, Evolution, and Systematics, 2017
Most species have one or more natural enemies, e.g., predators, parasites, pathogens, and herbivores, among others. These species in turn typically attack multiple victim species. This leads to the possibility of indirect interactions among those victims, both positive and negative.
Douglas W. Morris   +2 more
exaly   +5 more sources

Apparent competition structures ecological assemblages

open access: yesNature, 1997
Competition is a major force in structuring ecological communities1. It acts directly2 or indirectly, in which case it may be mediated by shared natural enemies and is known as ‘apparent competition’3,4,5,6. The effects of apparent competition on species coexistence are well known theoretically7,8 but have not previously been demonstrated empirically ...
Bonsall, M, Hassell, M
openaire   +4 more sources

APPARENT COMPETITION OR APPARENT MUTUALISM? SHARED PREDATION WHEN POPULATIONS CYCLE

open access: yesEcology, 1998
We use simple mathematical models to explore the indirect interactions between two prey species that share a predator when all three species undergo population cycles. The results are compared to analogous findings for systems that reach a stable equilibrium point.
Abrams, Peter A.   +2 more
openaire   +4 more sources

Spatiotemporal predictions of the alternative prey hypothesis: Predator habitat use during decreasing prey abundance

open access: yesEcosphere, 2023
The alternative prey hypothesis supposes that predators supported by a primary prey species will shift to consume alternative prey during a decrease in primary prey abundance.
Mitchell J. Brunet   +8 more
doaj   +1 more source

Management‐mediated predation rate in the caribou–moose–wolf system: spatial configuration of logging activities matters

open access: yesEcosphere, 2021
Landscape complexity can determine the population dynamics of interacting predators and prey. Yet, management plans are commonly developed from aspatial predictive models.
Virginie Vanlandeghem   +4 more
doaj   +1 more source

Predator discrimination of prey promotes the predator-mediated coexistence of prey species

open access: yesRoyal Society Open Science, 2022
The predator discrimination of prey can affect predation intensity and the prey density dependence of predators, which has the potential to alter the coexistence of prey species.
Gen Iwashita   +2 more
doaj   +1 more source

Indirect interactions between a native and a supposedly non-native wasp species (Hymenoptera: Vespidae: Eumeninae: Anterhynchium)

open access: yesEuropean Journal of Entomology, 2022
Non-native species pose a threat to native organisms. When non-native and native species are closely related, the former can often competitively exclude the latter. Many studies have focused on competitive exclusion of native insect species by non-native
Misaki TSUJII   +3 more
doaj   +1 more source

Sperm‐dependent asexual species and their role in ecology and evolution

open access: yesEcology and Evolution, 2023
Sexual reproduction is the primary mode of reproduction in eukaryotes, but some organisms have evolved deviations from classical sex and switched to asexuality.
Karel Janko   +3 more
doaj   +1 more source

Global change risks a threatened species due to alteration of predator–prey dynamics

open access: yesEcosphere, 2023
Although global change can reshape ecosystems by triggering cascading effects on food webs, indirect interactions remain largely overlooked. Climate‐ and land‐use‐induced changes in landscape cause shifts in vegetation composition, which affect entire ...
Guillemette Labadie   +5 more
doaj   +1 more source

Apparent Competition in Two-Sided Platforms [PDF]

open access: yesSSRN Electronic Journal, 2017
We study a platform’s design of membership and transaction fees when sellers compete and buyers cannot observe the prices and features of goods without incurring search costs. The platform alleviates sellers’ competition by charging them transaction fees that increase with sales revenue, and extracts surplus via membership fees.
Guven, Gokhan   +2 more
openaire   +2 more sources

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