156 research outputs found
Landscape composition and configuration affect the abundance of the olive moth (Prays oleae, Bernard) in olive groves
Landscape and crop management are important concepts for conservation biological control as they can influence
the abundance of natural enemies. In this work we accomplished a multi-scale study focused on the effect of
landscape structure and crop management on the olive moth, Prays oleae (Bernard), an important pest of the
olive tree (Olea europaea L.). The olive moth was collected in different olive groves managed under organic
farming and integrated production and surrounded by different landscape structures. Generalized additive mixed
models were used to analyze the response of the pest to (i) landscape composition and configuration indices, (ii)
the management system and (iii) pesticides applications at different scales. Results indicated that the landscape
composition, through the effect of the Simpson’s diversity index, negatively influenced P. oleae abundance and
that the effect was evident at larger scales. Also, the landscape configuration negatively affected P. oleae at larger
scales. However, neither the crop management system nor the pesticide applications affected P. oleae abundance.
This study emphasizes that the preservation or implementation of diverse and complex landscapes can contribute
to maintain lower population levels of P. oleae when compared with homogenous landscape areas.The authors are grateful to the Portuguese Foundation of Science
and Technology (FCT, Portugal) for financial support through the
projects EXCL/AGR-PRO/0591/2012 “Olive crop protection in sustainable
production under global climatic changes: linking ecological
infrastructures to ecosystem functions” and PTDC/ASP-PLA/30003/
2017 – “OLIVESIM - Managing ecosystem services in olive groves using
advanced landscape agent-based models” and CIMO (UIDB/00690/
2020). María Villa also thanks to Portuguese Foundation of Science and
Technology for the Postdoctoral fellowship SFRH/BPD/119487/2016.
The authors would like to thank to the farmers for allowing the access
to their olive groves.info:eu-repo/semantics/publishedVersio
Developing a subpopulation-based model for the olive fruit fly Bactrocera oleae (Diptera: Tephritidae): conceptual model out-line
Bactrocera oleae Rossi (olive fruit fly) is a dipteran of the family Tephritidae, considered the
key pest of olives in Mediterranean countries, where it causes losses of great economic impact. Nat ural pest control is an important alternative or complement to the use of plant protection products
against B. oleae. This is an ecosystem service that can be enhanced if we are able to predict its behav ior, which can be done through computer models simulating interactions between animals, agricul tural management and climate. In this paper we present the conceptual model of a spatially explicit
subpopulation-based model being developed for B. oleae in olive groves. In this modelling tech nique, the simulated dynamic landscape is segmented into non-overlapping cells, where the sub populations of B. oleae are represented as separate but interacting entities. Our model is based on
the Animal Landscape Man Simulation System (ALMaSS), which comprises a highly detailed and
realistic landscape representation, incorporating data on different aspects of farm management,
crop development, and climate, and where simulated entities operate. We present the general out line of B. oleae’s life cycle, as well as succinct information on how these organisms interact with their
environment. This is a step for the development of the final model and its implementation in AL MaSS.info:eu-repo/semantics/publishedVersio
Developing an Agent-Based Model for Haplodrassus rufipes (Araneae: Gnaphosidae), a Generalist Predator Species of Olive Tree Pests: Conceptual Model Outline
Olive growing has been facing major sustainability challenges due to intensification,
resulting in an increased use of pesticides and fertilizers and, consequently, in the depletion of
natural resources and loss of biodiversity and landscape values. This has created an urgent need to
develop models for managing complex agroecosystems that integrate factors affecting food quality,
sustainability and biodiversity, providing a supporting technique to understand the consequences
of agricultural management for ecosystem services. We are developing an advanced agent-based
simulation (ABS) applied to olive groves to model the effects of farming practices on the abundance
of olive pest predators. ABS is a modeling technique where agents represent animals (predator
arthropods, in our case) acting in their environment. Our model is based on an ABS system developed
by Aarhus University, the ALMaSS, which comprises highly detailed farm management and spatial
structures to construct dynamic landscapes where agents operate. In this work, we present the
conceptual model for one of the selected species, Haplodrassus rufipes (Araneae: Gnaphosidae.info:eu-repo/semantics/publishedVersio
International, multidisciplinary Delphi consensus recommendations on non-pharmacological interventions for fibromyalgia
Funding Information: The Republic of Turkey Ministry of National Education for the PhD studentship. Publisher Copyright: © 2022 The Author(s)Objectives: To develop evidence-based expert recommendations for non-pharmacological treatments for pain, fatigue, sleep problems, and depression in fibromyalgia. Methods: An international, multidisciplinary Delphi exercise was conducted. Authors of EULAR and the Canadian Fibromyalgia Guidelines Group, members of the American Pain Society and clinicians with expertise in fibromyalgia were invited. Participants were asked to select non-pharmacological interventions that could be offered for specific fibromyalgia symptoms and to classify them as either core or adjunctive treatments. An evidence summary was provided to aid the decision making. Items receiving >70% votes were accepted, those receiving <30% votes were rejected and those obtaining 30-70% votes were recirculated for up to two additional rounds. Results: Seventeen experts participated (Europe (n = 10), North America (n = 6), and Israel (n = 1)) in the Delphi exercise and completed all three rounds. Aerobic exercise, education, sleep hygiene and cognitive behavioural therapy were recommended as core treatments for all symptoms. Mind-body exercises were recommended as core interventions for pain, fatigue and sleep problems. Mindfulness was voted core treatment for depression, and adjunctive treatment for other symptoms. Other interventions, namely music, relaxation, hot bath, and local heat were voted as adjunctive treatments, varying between symptoms. Conclusions: This study provided evidence-based expert consensus recommendations on non-pharmacological treatments for fibromyalgia that may be used to individualise treatments in clinical practice targeting the diverse symptoms associated with fibromyalgia.publishersversionepub_ahead_of_prin
Distribuição volumétrica e espectro de gotas de bicos hidráulicos de jato plano de faixa expandida XR11003
Building a system of computational models to simulate natural pest control
A limitação natural de pragas é um serviço de ecossistema que deve ser promovido nos
sistemas agrícolas, já que pode ser usada como alternativa, ou complementarmente, à aplicação
de pesticidas. Consiste no consumo das pragas pelos seus inimigos naturais e pode ser
promovida através do estabelecimento de componentes paisagísticas que forneçam, a estes
inimigos das pragas, alimento alternativo e refúgio, para além da aplicação de práticas agrícolas
sustentáveis. No entanto, o delineamento de uma estratégia eficaz de limitação natural de
pragas está dependente da caracterização detalhada dos comportamentos dos animais que
fazem parte dessa cadeia trófica, nomeadamente, das pragas e dos seus predadores, o que pode
ser feito através de simulações computacionais. Neste contexto, e no âmbito do projeto
OLIVESIM, estamos a construir um sistema de modelos para simular a biologia e o
comportamento de duas espécies de artrópodes (1) a mosca-da-azeitona, Bactrocera oleae
(Rossi), praga chave da oliveira, e (2) a aranha de solo, Haplodrassus rufipes (Lucas), um dos
potenciais predadores da praga, e as suas interações com a paisagem selecionada para realizar
este estudo, localizada na região de Trás-os-Montes (Mirandela, Portugal) e caracterizada
fundamentalmente por olival tradicional. Para isso, está a ser utilizado o sistema ALMaSS
(Animal, Landscape and Man Simulation System), que recebe inputs diários de variáveis
climáticas e também de ações de gestão agrícola, e que é calibrado com dados sobre abundância
quantitativa e qualitativa de animais. Neste simpósio focamo-nos nestes dois modelos,
mostrando também o estado atual deste trabalho.Natural pest control is an ecosystem service that should be promoted in agricultural
systems, as it can be used as an alternative or complementary to pesticide application. It consists
in increasing the populations of natural pest enemies by establishing landscape components
that provide them with alternative food and refuge, and by applying sustainable agricultural
practices. However, the design of an effective strategy for natural pest control depends on the
detailed characterization of the behaviour of animals that are part of this trophic chain, namely
pests and their predators, which can be done through computational simulations. In this
context, and in the scope of project OLIVESIM, we are building a system of models to simulate
the biology and behaviours of two species (1) the olive fly, Bactrocera oleae (Rossi), key pest of
the olive tree, and (2) a ground spider, Haplodrassus rufipes (Lucas), one of the potential
predators of the pest, and their interactions with the landscape selected to carry out this study,
located in the region of Trás-os-Montes (Mirandela, Portugal) and characterized primarily by
traditional olive groves. For this, the ALMaSS (Animal, Landscape and Man Simulation System)
system is being used, which receives daily inputs of climatic variables and agricultural
management actions, and which is calibrated with data on quantitative and qualitative
abundance of animals. In this symposium, we focus on the models for these two animal species,
showing the current state of this work.info:eu-repo/semantics/publishedVersio
Meloidogyne and Pratylenchus species in sugarcane fields in the state of Alagoas, Brazil
Hypothetical model ignores many important pathophysiologic mechanisms in fibromyalgia
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