Sex in the kitchen: non-additive effects of competition for food and reproductive interference on coexistence outcomes between sibling species DOI Creative Commons
Miguel A. Cruz, Óscar Godoy, Inês Fragata

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Nov. 13, 2023

Abstract Competition for food and reproductive interference (negative interspecific sexual interactions) have been identified as major drivers of species exclusion. Still, how these biotic interactions jointly determine competitive dominance remains largely unknown. We tackle this by coupling population models laboratory experiments with two spider mite sibling species. Using specifically designed to measure the single combined effects competition interference, we first show that strength symmetry between changes in presence competition. Next, incorporating each type interaction alone or their when lead markedly different predictions, from exclusion one other, less abundant Moreover, accounting observed reduction threshold frequency determining dominant competitor, favouring superior competitor food. Finally, model predictions short-term dynamics were corroborated an independent cage experiment. Altogether, our results suggest trophic can modulate interactions, significantly impacting outcomes. Hence, joint consideration is critical accurately predict understand coexistence.

Language: Английский

Reproductive Interference Alters Species Coexistence in Nematodes due to Asymmetric Sperm‐Induced Harm DOI Creative Commons
Rebecca Schalkowski, Katja R. Kasimatis, Megan A. Greischar

et al.

Ecology Letters, Journal Year: 2025, Volume and Issue: 28(1)

Published: Jan. 1, 2025

ABSTRACT Species coexistence is shaped by a range of biotic and abiotic factors. Beyond predation, parasitism competition, one species may interfere with another's reproduction to induce sexual exclusion from habitat. Here, we test for reproductive interference inter‐species mating between sympatric nematodes Caenorhabditis macrosperma C. nouraguensis . Higher intrinsic population growth arises greater output both sexes, predicting it be superior in resource competition Mate discrimination incomplete, however, errors reducing lifespan fitness female only. These asymmetric costs arise within hours, due ectopic migration 's giant sperm cells. We modelled the dynamic impacts interference, then confirmed rapid mixed‐species communities multi‐generation experiments. findings demonstrate profound ecological implications demographic parameters through cell‐mediated mechanism harm.

Language: Английский

Citations

1
Hybridization and the Coexistence of Species DOI
Darren E. Irwin, Dolph Schluter

The American Naturalist, Journal Year: 2022, Volume and Issue: 200(3), P. E93 - E109

Published: April 11, 2022

It is thought that two species can coexist if they use different resources present in the environment, yet this assumes are completely reproductively isolated. We simulate coexistence outcomes for sympatric ecologically differentiated but have incomplete reproductive isolation. The consequences of interbreeding crucially depend on hybrid fitness. When fitness high, just a small rate hybridization lead to collapse into one. Low cause population declines, making extinction one or both likely. High intrinsic growth rates result higher when populations below carrying capacity, reducing probability and increasing stable at moderate levels assortative mating Very strong induce low via disadvantage rare genotypes, stabilize high mating. Given these results evidence it may take many millions years divergence before related become sympatric, we postulate closely more often limited by insufficient than ecological differentiation.

Language: Английский

Citations

34
The ecological importance of hybridization DOI Creative Commons
Daniele Porretta, Daniele Canestrelli

Trends in Ecology & Evolution, Journal Year: 2023, Volume and Issue: 38(11), P. 1097 - 1108

Published: Aug. 22, 2023

Hybridization as an evolutionary process has been studied in depth over the past few decades. Research focused on its role shaping reproductive barriers, adaptive value, and genomic consequences. In contrast, our knowledge of ecological dimensions hybridization is still infancy, despite being inherently interaction. Using examples from various organisms, we show that can affect be affected by non-reproductive interactions, including predation, competition, parasitism, mutualism, commensalism, organism–environment with significant implications for community structure ecosystem functioning. However, since these have mostly revealed studies designed to decipher other processes, argue much eco-evolutionary importance yet discovered.

Language: Английский

Citations

19
The effect of a psychological scare on the dynamics of the tumor-immune interaction with optimal control strategy DOI Creative Commons

Rafel Ibrahim Salih,

Shireen Jawad, Kaushik Dehingia

et al.

An International Journal of Optimization and Control Theories & Applications (IJOCTA), Journal Year: 2024, Volume and Issue: 14(3), P. 276 - 293

Published: July 24, 2024

Contracting cancer typically induces a state of terror among the individuals who are affected. Exploring how chemotherapy and anxiety work together to affect speed at which cells multiply immune system’s response model is necessary come up with ways stop spread cancer. This paper proposes mathematical investigate impact psychological scare on interaction immunity. The proposed accurately described. focus model’s dynamic analysis identify potential equilibrium locations. According analysis, it possible establish three positions. stability reveals that all points consistently exhibit under defined conditions. bifurcations occurring sites derived. Specifically, we obtained transcritical, pitchfork, saddle-node bifurcation. Numerical simulations employed validate theoretical study ascertain minimum therapy dosage for eradicating in presence distress, thereby mitigating harm patients. Fear could be significant contributor tumors weakness functionality.

Language: Английский

Citations

6
Competition Theory in Ecology DOI
Peter A. Abrams

Oxford University Press eBooks, Journal Year: 2022, Volume and Issue: unknown

Published: Sept. 22, 2022

Abstract This book explores how mathematical models can illuminate the interaction known as interspecific competition. Competition occurs whenever two or more species share at least some of same limiting resources. It is likely to affect all species, well many higher-level aspects community and ecosystem dynamics. Interspecific competition shares features density dependence (intraspecific competition) evolution (competition between genotypes). In spite this, a robust theoretical framework for understanding its outcomes potential effects on ecological communities lacking. Despite prominence in literature, theory seems have lost direction recent decades, with synthetic papers promoting outdated ideas, failing use resource-based models, having little utility applied fields such conservation environmental management. The examines that began be developed half century ago extended change abundances competing species. Current needs incorporate findings regarding consumer–resource interactions context larger food webs containing behaviourally evolutionarily adapting components. Overly simple methods analysis led past contributing less than it should practical applications. also discusses related intraspecific apparent competition, evolutionary this important process.

Language: Английский

Citations

28
How can interspecific pollen transfer affect the coevolution and coexistence of two closely related plant species? DOI Creative Commons
Keiichi Morita, Akira Sasaki, Ryosuke Iritani

et al.

Oikos, Journal Year: 2025, Volume and Issue: unknown

Published: April 11, 2025

Interspecific pollen transfer (IPT), the movement between plant species via shared pollinators, reduces reproductive success of pollen‐recipient plants due to hybridization with heterospecific grains. As a result, IPT hinders coexistence sympatric, co‐flowering by reducing their success. likely exerts selective pressure on systems, particularly sex allocation (resource investment versus ovules). However, influence evolutionary dynamics and associated ecological processes remains poorly understood. Here, we explore how female costs incurred affect co‐evolution two species. To address this, construct mathematical model capturing interactions through resource competition, reduced fertilization caused IPT. Our analysis focuses scenario where an invasive female‐biased enters habitat occupied resident evolutionarily stable, equal (Fisherian allocation). Using adaptive theory, demonstrated that, irrespective strength, natural selection drives both toward allocation, consistent Fisherian theory. We present key predictions eco‐evolutionary outcomes. First, when impacts are comparable for species, resulting lead stable coexistence. In contrast, if from is disproportionately stronger than species' shift extinction. Since local mate competition in small populations can favour our results suggest that experiencing may drive findings underscore intricate role IPT‐driven evolution shaping closely related

Language: Английский

Citations

0
Comparison of the reproductive cycles of two cryptic soles in the Adriatic Sea DOI Creative Commons

Laura Sabatini,

Fortunata Donato,

Mario La Mesa

et al.

Animal Reproduction Science, Journal Year: 2025, Volume and Issue: 275, P. 107817 - 107817

Published: March 4, 2025

Language: Английский

Citations

0
Developing heterospecific sterile insect technique for pest control: insights from the spotted wing fly Drosophila suzukii DOI Creative Commons
Flavia Cerasti, Massimo Cristofaro, Valentina Mastrantonio

et al.

Pest Management Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 7, 2025

Abstract BACKGROUND Reproductive interference (i.e. sexual interaction between males of one species and females another that reduce the fitness or both interacting individuals) is an important significantly affecting population dynamics persistence. However, its exploitation in pest control remains overlooked. Here, we investigated possible integration reproductive into sterile insect technique (SIT) to develop a heterospecific SIT (h‐SIT). Under this approach, contrary classic SIT, from closely related, nonpest are released compete with for mates. To end, focused on invasive Drosophila suzukii used D. melanogaster as species. First, effect irradiation sterility longevity. Then, tested mating performance irradiated their ability fitness. RESULTS We found by microcosm experiments that: (i) induced high levels male without reducing longevity; (ii) court much do, they couple, mate inseminate females; (iii) offspring under two different ratios. CONCLUSION Our results provide first foundations development h‐SIT against , approach which can be other groups © 2025 The Author(s). Pest Management Science published John Wiley & Sons Ltd behalf Society Chemical Industry.

Language: Английский

Citations

0
Sexual conflict in resident species can facilitate establishment of a maladapted invader DOI
Miguel Gómez‐Llano, Masato Yamamichi, Adam M. Siepielski

et al.

The American Naturalist, Journal Year: 2025, Volume and Issue: unknown

Published: May 8, 2025

Language: Английский

Citations

0
Bird Communities in a Changing World: The Role of Interspecific Competition DOI Creative Commons
Alban Guillaumet, Ivory Russell

Diversity, Journal Year: 2022, Volume and Issue: 14(10), P. 857 - 857

Published: Oct. 11, 2022

Significant changes in the environment have potential to affect bird species abundance and distribution, both directly, through a modification of landscape, habitats, climate, indirectly, biotic interactions such as competitive interactions. Predicting mitigating consequences global change thus requires not only sound understanding role played by current ecosystems, but also recognition study complex intricate effects that result from perturbation these ecosystems. In this review, we emphasize interspecific competition communities focusing on three main predictions derived theoretical empirical considerations. We provide numerous examples population decline displacement appeared be, at least part, driven competition, were amplified environmental associated with human activities. Beyond shift relative abundance, show may negative impact richness, ecosystem services, endangered species. Despite findings, argue that, general, remains poorly understood due methodological issues complexity natural communities. is further complicated uncertainty regarding future conditions speed efficacy plastic evolutionary responses fast-changing environments. Possible directions research are highlighted.

Language: Английский

Citations

15