Towards a modular theory of trophic interactions

Functional Ecology, Journal Year: 2021, Volume and Issue: 37(1), P. 26 - 43

Published: Oct. 22, 2021

Abstract Species traits and environmental conditions determine the occurrence strength of trophic interactions. If we understand relationship between these factors interactions, can make more accurate predictions build better trophic‐interaction models. We compare by considering their effect on different parts (steps) a interaction, such as steps search pursuit . By linking to relevant steps, use relationships Currently, this is done ad hoc, defining based species interest. This makes it difficult across gain an overarching understanding how environment drive present comprehensive approach for explicit choice interaction or conditions, which readily integrated into existing The core framework that modular; eight occur in all interactions them modular, general dynamic model. When applying framework, one explicitly selects only most uses those specific To our modular revisit expand functional numerical response functions, dividing steps: (1) search, (2) prey detection, (3) attack decision, (4) pursuit, (5) subjugation, (6) ingestion, (7) digestion (8) nutrient allocation. Together form dynamical model where be parameterized multiple factors. then concretize outlining community modelled selecting key modules parameterizing exemplify terrestrial arthropods using empirical data body size temperature responses. With at dynamics, allows quantification comparisons importance traits, abiotic ecosystems types, provides powerful tool trait‐based prediction food‐web structure dynamics. A free Plain Language Summary found within Supporting Information article.

Language: Английский

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Functional response of Harmonia axyridis preying on Acyrthosiphon pisum nymphs: the effect of temperature

Scientific Reports, Journal Year: 2021, Volume and Issue: 11(1)

Published: June 30, 2021

Abstract In the current study, we investigated functional response of Harmonia axyridis adults and larvae foraging on Acyrthosiphon pisum nymphs at temperatures between 15 35 °C. Logistic regression Roger’s random predator models were employed to determine type parameters response. exhibited Type II responses A. , warming increased both predation activity host aphid control mortality. Female 4th instar H. consumed most aphids. For fourth female adults, successful attack rates 0.23 ± 0.014 h −1 0.25 0.015 ; handling times 0.13 0.005 0.16 0.004 h; estimated maximum 181.28 14.54 153.85 4.06, respectively. These findings accentuate high performance role temperature in their efficiency. Further, discussed such temperature-driven shifts prey mortality concerning prey-predator interactions towards biological control.

Language: Английский

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The time of day matters when it comes to yellowjackets’ attacks on honey bees and lavender essential oil can deter wasps from hives

Apidologie, Journal Year: 2025, Volume and Issue: 56(2)

Published: March 24, 2025

Language: Английский

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Effect of temperature on functional response of Blattisocius mali (Acari: Blattisociidae) preying on the acarid mite Tyrophagus putrescentiae

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: May 2, 2025

Abstract Climate warming significantly impacts soil temperature and moisture , leading to changes in the activity of mites foraging behaviour edaphic predatory mites. The current research aimed investigate effect on functional response mite Blattisocius mali Oudemans preying either eggs or males mould Tyrophagus putrescentiae Schrank. To analyze type generalized equation Real was used while parameters were determined using Roger Hassell Cabello et al. models. Female adult B. displayed Type III II responses when respectively across all tested temperatures ranging between 10 °C 35 . handling time shorter at higher 25 °C, 30 males. In contrast potential for prey mortality attack rate ratio indicating efficiency temperatures. strongly impacted predators’ as accelerated predator action under increased consumption. However did not change with warmer but varied changing stages from egg male.

Language: Английский

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Dynamical behaviors of a generalist predator–prey system with Allee and wind effects in deterministic or stochastic environment

Chaos Solitons & Fractals, Journal Year: 2025, Volume and Issue: 192, P. 116041 - 116041

Published: Feb. 4, 2025

Language: Английский

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Mismatches in thermal performance between ectothermic predators and prey alter interaction strength and top-down control

Oecologia, Journal Year: 2023, Volume and Issue: 201(4), P. 1005 - 1015

Published: April 1, 2023

Language: Английский

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Warmer and more seasonal climates reduce the effect of top‐down population control: An example with aphids and ladybirds

Functional Ecology, Journal Year: 2023, Volume and Issue: 37(6), P. 1604 - 1619

Published: March 28, 2023

Abstract Thermal performance within predator–prey systems may have profound effects on species interactions under climate change. However, how the thermal response of predators and prey to change affects their is still understudied. To examine responses a system change, we constructed biologically detailed stage‐structured population dynamic model using aphids (prey) ladybirds (predator) as system. We explore system's dynamics across entire feasible parameter space annual mean temperature seasonality. Within this space, all qualitatively possible scenarios mismatches gain insight into these affect interacting species' climatic find that, generally, warmer less seasonal climates are most favourable conditions for both species. Our results also indicate that predation always has stronger effect aphid abundance than in tropical subtropical regions mismatch scenarios. Furthermore, predation's (biotic) will generally decrease relative (abiotic) when future become more seasonal. research highlights increasing seasonality consistent with having proportionally larger impact pairs different performances predation. Read free Plain Language Summary article Journal blog.

Language: Английский

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The effect of temperature and behaviour on the interaction between two dragonfly larvae species within the native and expanded range

Ecological Entomology, Journal Year: 2022, Volume and Issue: 47(3), P. 460 - 474

Published: Feb. 3, 2022

Abstract Studies on interaction between species are needed to observe and predict the effects of climate change distributions. Here we studied intra‐ interspecific competition behaviour in larvae a native northward expanding dragonfly species, Sympetrum vulgatum fonscolombii , respectively. We estimated growth, mortality, (prey capture success, activity, boldness) at 20°C 23°C. The S. had higher growth rate survival compared with competition. In intraspecific conditions, there was no significant difference mortality growth. Temperature effect but showed both 23°C under conditions. There correlation suggesting that cannibalism intraguild predation caused differences treatments experiments. any behaviours. were very few correlations behaviours life‐history traits also Repeatability over ontogeny low. results present study suggest range has potential outcompete this advantage does not seem be driven by temperature explored study.

Language: Английский

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Warming and top‐down control of stage‐structured prey: Linking theory to patterns in natural systems

Ecology, Journal Year: 2023, Volume and Issue: 105(1)

Published: Nov. 29, 2023

Abstract Warming has broad and often nonlinear impacts on organismal physiology traits, allowing it to impact species interactions like predation through a variety of pathways that may be difficult predict. Predictions are commonly based short‐term experiments models, these studies yield conflicting results depending the environmental context, spatiotemporal scale, predator prey considered. Thus, accuracy predicted changes in interaction strength, their importance broader ecosystems they take place in, remain unclear. Here, we attempted link one such set predictions generated using theory, modeling, controlled patterns natural abundance across thermal gradient. To do so, first how warming would stage‐structured predator–prey riverine rock pools between Pantala spp. dragonfly nymph predators Aedes atropalpus mosquito larval prey. We then described temperature variation hundreds ( n = 775) leveraged this gradient look for evidence or against our model's predictions. Our suggested should weaken control by accelerating development shrinking window time during which aquatic nymphs could consume them. This was consistent with data collected pool ecosystems, where negative effects were weaker warmer pools. findings provide additional substantiate model‐derived while emphasizing assessing similar gradients whenever possible.

Language: Английский

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Metabolic plasticity drives mismatches in physiological traits between prey and predator

Communications Biology, Journal Year: 2024, Volume and Issue: 7(1)

Published: May 28, 2024

Abstract Metabolic rate, the rate of energy use, underpins key ecological traits organisms, from development and locomotion to interaction rates between individuals. In a warming world, temperature-dependence metabolic is anticipated shift predator-prey dynamics. Yet, there little real-world evidence on effects trophic interactions. We measured respiration aquatic larvae three insect species populations experiencing natural temperature gradient in large-scale mesocosm experiment. Using mechanistic model we predicted these taxa’s rates. found that species-specific differences plasticity lead mismatches their relative velocities, resulting altered This study underscores role at level modifying interactions proposes modelling approach allows an efficient, high-throughput estimation climate change threats across pairs.

Language: Английский

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