A cohort-based modelling approach for managing olive moth Prays oleae (Bernard, 1788) populations in olive orchards

Gonzalez, Darinka; Cabral, João Alexandre; Torres, Laura; Santos, Mário

doi:10.1016/j.ecolmodel.2014.10.012

Cited by 11 publications

(7 citation statements)

References 26 publications

(61 reference statements)

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“…They were placed in the field for 15 days, overlapping with the periods of bat monitoring. Sampling was performed in mid-spring, early-summer and early-autumn, thereby coinciding with the peaks of abundance of this species (Gonzalez et al, 2015). At the end of each season, the number of captured P. oleae was counted and the total number of specimens per trap was used as a surrogate for site-specific abundance.…”

Section: Pest Monitoringmentioning

confidence: 99%

“…The olive fruit moth, Prays oleae Bernard 1788 (Lepidoptera: Praydidae), is one of the most harmful olive pests worldwide. P. oleae is a monophagous species with three annual generations, each of which is synchronized with the seasonal growth of specific plant structures, namely leaves, flowers and fruits (Gonzalez et al, 2015). It has recently been recorded in the diets of insectivorous bats (Vanessa Mata, Personal Communication), though their role as biocontrol agents against this specific crop pest is still far from understood.…”

Section: Introductionmentioning

confidence: 99%

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Structural simplification compromises the potential of common insectivorous bats to provide biocontrol services against the major olive pest Prays oleae

Costa

Silva

Jiménez‐Navarro

et al. 2020

Agriculture, Ecosystems & Environment

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Crop production intensification often leads to the structural simplification of production systems. This structural simplification is expected to have strong impacts on biodiversity and the provisioning of ecosystem services, but information about this topic is scarce. For instance, no information exists for Mediterranean olive (Olea europaea) groves, despite olive farming representing a significant share of the agricultural sector in some European countries. We investigated the impact of in-farm and landscape-level structural simplification on the potential of three common insectivorous bats (i.e., Pipistrellus kuhlii, P. pygmaeus and P. pipistrellus) to provide biocontrol services against one of the most harmful olive pests worldwide, the olive fruit moth Prays oleae. Bats and insect surveys were both carried out in olive groves representing increasing levels of structural simplification and during three sampling seasons (spring, summer and autumn). At grove-level, structural simplification was considered as resulting from reduced planting pattern variability (i.e., tree and row spacing) and tree features (diameter at breast height, height of the trunk and canopy area), while at landscape level was considered as resulting from reduced land-cover types. We found that the Kuhl's pipistrelle was the most frequently recorded species in all types of olive groves and seasons. Moreover, the activity levels of pipistrelle bats as a whole significantly decreased with the structural simplification of olive groves. The abundance of P. oleae was highest at intermediate levels of structural simplification, irrespective of the season. Forest cover in the surrounding landscape had a significant positive influence on the activity levels of P. kuhlii, and a significant and negative influence on the abundance of P. oleae. Our study demonstrates that structural simplification differentially influences the activity patterns of both insectivorous bats and insect pests within olive groves. Moreover, it suggests that structural simplification may strongly compromise biocontrol services provided by bats on the major olive pest P. oleae.

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Section: Pest Monitoringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Structural simplification compromises the potential of common insectivorous bats to provide biocontrol services against the major olive pest Prays oleae

Costa

Silva

Jiménez‐Navarro

et al. 2020

Agriculture, Ecosystems & Environment

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“…Natural regeneration is a dynamic process where new individuals are recruited into the mature population, compensating the losses due to mortality, induced by several biotic and abiotic factors (Harper, 1977;Holmgren et al, 1997;Pulido and Díaz, 2005;Fei and Steiner, 2008). Therefore, we developed a System Dynamics Modelling approach composed by four sub-models concerning the cork oak population dynamics based on cork oak age stratification (classes) (González et al, 2015), represented by the sum of different life stage cohorts (seedlings, saplings, immature trees and adult trees), and one additional sub-model to estimate the economic balances associated (Fig. 1).…”

Section: Dynamic Model Conceptualizationmentioning

confidence: 99%

Long-term sustainability of cork oak agro-forests in the Iberian Peninsula: A model-based approach aimed at supporting the best management options for the montado conservation

Arosa

Bastos

Cabral

et al. 2017

Ecological Modelling

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a b s t r a c tThe future of the montado, a human shaped agro-forestry ecosystem of South Western Europe, is questioned due to the observed lack of cork oak health and low natural regeneration. We developed a System Dynamics Modelling approach to predict the long-term sustainability of this agro-forest, by recreating cork-oak population dynamics, management practices and the main environmental and biological constrains associated with this ecosystem. Our results indicate that the leading limitations to cork oak regeneration in montado ecosystems result from the intensity and interaction of land management practices, namely livestock and the use of heavy machinery. The main conclusions indicate that limiting the quantity of livestock up to 0.40 LU.ha −1 , and considering soil ploughing with a minimum periodicity of 5 years, are crucial to maintaining sustainable cork oak populations. This study represents a first step to support strategic options for cork oak montado management by providing projections of long-term population trends under realistic social-ecological change scenarios.

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“…Day was selected as the appropriate time unit for simulating stochastic events (e.g. anthropogenic disturbance) and environmental, biological and ecological processes affecting individuals’ survival (Gonzalez et al ., 2015). Considering the multitude and variability of processes (biological, ecological and environmental) involved, one hundred independent simulations were ran by scenario, for a period of 10 years, to gauge possible effects of management actions in the population trends (White, 2019).…”

Section: Methodsmentioning

confidence: 99%

What to expect from alternative management strategies to conserve seabirds? Hints from a dynamic modelling framework applied to an endangered population

Cruz

Bastos

Silva³

et al. 2021

Animal Conservation

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The worldwide decline of seabird populations due to the combined effects of global and regional changes is creating immense challenges for managers and conservationists. Predicting population responses to proposed management strategies could provide the most effective tools to prevent, halt and reverse ongoing declines. System dynamic modelling frameworks are considered particularly relevant to interrelate biological, ecological and environmental characteristics and to predict population trends. A system dynamics model was designed, compiling diverse information concerning a relict population of the European Shag located in western Iberia, to outline the most effective management options for its conservation. The simulations demonstrate that mortality caused by invasive animals and bycatch mortality were the main reasons for the current population decline. Without management interventions, a decrease of 8% was projected for the next decade, which could be mitigated by specific conservation actions. The results show the usefulness of dynamic modelling frameworks to understand local cause-effect relationships and species responses to ecosystem management under changing environmental conditions. We highlight that the framework proposed, after specific parameterization, could be easily adaptable to other species within similar socioecological systems.

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A cohort-based modelling approach for managing olive moth Prays oleae (Bernard, 1788) populations in olive orchards

Cited by 11 publications

References 26 publications

Structural simplification compromises the potential of common insectivorous bats to provide biocontrol services against the major olive pest Prays oleae

Structural simplification compromises the potential of common insectivorous bats to provide biocontrol services against the major olive pest Prays oleae

Long-term sustainability of cork oak agro-forests in the Iberian Peninsula: A model-based approach aimed at supporting the best management options for the montado conservation

What to expect from alternative management strategies to conserve seabirds? Hints from a dynamic modelling framework applied to an endangered population

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