27 documents found, page 1 of 3
Another chapter in the history of the European invasion by the Western conifer ...
Farinha, Ana Oliveira; Branco, Manuela; Courtin, Claudine; Lesieur, Vincent; Gallego, Diego; Sanchez-Garcia, Francisco Javier; Sousa, EdmundoThe Western conifer seed bug, Leptoglossus occidentalis, is native to North America and has already been considered a significant pest in several European countries since its first observation in Italy in 1999. In Spain and Portugal, it was recorded for the first time in 2003 and 2010, respectively, and its impact on Stone Pine (Pinus pinea) is of major concern. Before developing control measures for this insec...
Eradication programs against non-native pests and pathogens of woody plants in ...
Branco, Sofia; Douma, Jacob C.; Brockerhoff, Eckehard G.; Gomez-Gallego, Mireia; Marcais, Benoit; Prospero, Simone; Franco, José Carlos; Jactel, HervéWhen a non-native species succeeds in establishing in a new habitat, one of the possible responses is to attempt its eradication. In the present study, we analysed European eradication programmes against non- native pests and pathogens of woody plants (PPWP) from 1945 to date. Our main goal was to identify which factors affect the success of an eradication programme, reinforcing guidelines for future eradica- t...
Modelling the invasion dynamics of the African citrus psyllid: The role of huma...
Nunes, Pedro; Robinet, Christelle; Branco, Manuela; Franco, José CarlosThe African citrus psyllid, Trioza erytreae (Del Guercio) (Hemiptera, Triozidae), is native to tropical Africa and invasive species in North America and Europe. The main host plants are citrus, displaying a preference for lemon trees. This psyllid was recently detected in the northwest region of the Iberian Peninsula, both in Spain and Portugal. Here, we used a model combining a reaction-diffusion model to a st...
Response of the egg parasitoids of the pine processionary moth to host density ...
Essaidi, Khaled Bouzar; Branco, Manuela; Battisti, Andrea; Garcia, André; Fernandes, Maria Rosário; Chabane, Younes; Bouzemarene, MouradThaumetopoea pityocampa is the most important pine defoliator in the Mediterranean 24 basin. Despite being attacked by a number of natural enemies, populations occur 25 frequently at high density in several areas. 26 2 Egg parasitism was studied in 27 pine and cedar forests in Algeria, in relation to the host 27 density (tents per tree) and the proportion of forest cover in the landscape. 28 3 Egg parasitism va...
Modelling Monochamus galloprovincialis dispersal trajectories across a heteroge...
Nunes, Pedro; Branco, Manuela; Van Halder, Inge; Jactel, HervéContext 14 The pine wood nematode (PWN), is an invasive species which was introduced into Europe in 15 1999. It represents a major economic and ecological threat to European forests. In Europe, the 16 maritime pine is the main host and Monochamus galloprovinciallis is its only vector. 17 18 Objectives 19 Our goal was to analyze the effect of landscape heterogeneity on the vector’s dispersal. We 20 further aimed...
Phytochemical Composition of Extractives in the Inner Cork Layer of Cork Oaks w...
Simões, Rita; Branco, Manuela; Nogueira, Carla; Carvalho, Carolina; Santos-Silva, Conceição; Ferreira-Dias, S.; Miranda, Isabel; Pereira, HelenaThe beetle Coraebus undatus, during its larval stage feeds, and excavates galleries on the cork-generating layer of Quercus suber L. trees, seriously affecting the cork quality with significant economic losses for the cork industry. This work compared the composition of the extracts present in the innermost cork layers (the belly) of cork planks from Q. suber trees with low and moderate C. undatus attack in one...
Preventing invasions of Asian longhorn beetle and citrus longhorn beetle: Are w...
Branco, Sofia; Faccoli, Maximo; Brockerhoff, Eckehard G.; Roux, Géraldine; Jactel, Hervé; Desneux, Nicolas; Gachet, Emmanuel; Mouttet, RaphaelleReview; Two Asian longhorn beetles, Anoplophora glabripennis and Anoplophora chinensis are among the most serious alien invasive species attacking forest and urban trees, both in North America and Europe. Major efforts have been put into preventing further entry and establishment of the two species as well as promoting their successful eradication. Here we review these efforts, their progress and outcome, and s...
Can School Children Support Ecological Research? Lessons from the Oak Bodyguard...
Castagneyrol, Bastien; Valdés-Correcher, Elena; Bourdin, Audrey; Barbaro, Luc; Bouriaud, Olivier; Branco, Manuela; Centenaro, Giada; Csóka, GyörgyScientific knowledge in the field of ecology is increasingly enriched by data acquired by the general public participating in citizen science (CS) programs. Yet, doubts remain about the reliability of such data, in particular when acquired by schoolchildren. We built upon an ongoing CS program, Oak Bodyguards, to assess the ability of schoolchildren to accurately estimate the strength of biotic interactions in ...
Search for top‐down and bottom‐up drivers of latitudinal trends in insect herbi...
Valdés‐Correcher, Elena; Moreira, Xoaquín; Augusto, Laurent; Barbaro, Luc; Bouget, Christophe; Bouriaud, Olivier; Branco, Manuela; Centenaro, GiadaAIM: The strength of species interactions is traditionally expected to increase toward the Equator. However, recent studies have reported opposite or inconsistent latitudinal trends in the bottom-up (plant quality) and top-down (natural enemies) forces driving herbivory. In addition, these forces have rarely been studied together thus limiting previous attempts to understand the effect of large-scale climatic g...
One maternal lineage leads the expansion of Thaumastocoris peregrinus (Hemipter...
Machado, Dayanna do N.; Costa, Ervandil C.; Guedes, Jerson V.C.; Barbosa, Leonardo R.; Martinez, Gonzalo; Mayorga, Sandra I.; Ramos, Sérgio O.The bronze bug, Thaumastocoris peregrinus, an Australian native insect, has become a nearly worldwide invasive pest in the last 16 years and has been causing significant damage to eucalypts (Myrtaceae), including Eucalyptus spp. and Corymbia spp. Its rapid expansion leads to new questions about pathways and routes that T. peregrinus used to invade other continents and countries. We used mtDNA to characterize sp...