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Registros recuperados: 21
Primeira ... 12 ... Última
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Alien insect species in a warmer world – patterns and trends Inra
Roques, A.; Robinet, C..
Tipo: Conference Paper Palavras-chave: ESPECE EXOTIQUE INVASIVE; INVASION BIOLOGIQUE; ECOSYSTEME; SUCCES REPRODUCTEUR; COLONISATION INVASIVE ALIEN SPECIES; CLIMATE WARMING; CLIMATE CHANGE; BIOLOGICAL INVASION; BIODIVERSITY; ECOSYSTEM ; REPRODUCTIVE SUCCESS; COLONIZATION; RANGE EXPANSION.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010d40bbd23&uri=/notices/prodinra1/2010/09/
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Anthropogenic pathways in the spread of the pinewood nematode and predictions of future expansion Inra
Robinet, C.; Roques, A.; Van Opstal, N.; Baker, R.; Pan, H.; Fang, G.; Ye, J.; Zhang, Y.; Tröltzsch, K.; Sun, J..
Tipo: Meeting Paper Palavras-chave: BURSAPHELENCHUS XYLOPHILUS; ESPECE EXOTIQUE INVASIVE; MONOCHAMUS; INVASION BIOLOGIQUE; EXPANSION; DISPERSION; INSECTE VECTEUR; ACTIVITE HUMAINE; EFFET ANTHROPOGENIQUE PINEWOOD NEMATODE; INVASIVE ALIEN SPECIES; PEST INSECT; BIOLOGICAL INVASION; SPREAD; RANGE EXPANSION; DAMAGE; VECTOR INSECT; HUMAN ACTIVITY; ANTHROPOGENIC EFFECT.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010de64addc&uri=/notices/prodinra1/2010/08/
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Biological invasions: Deriving the regions at risk from partial measurements Inra
Cristofol; Roques, L..
We consider the problem of forecasting the regions at higher risk for newly introduced invasive species. Favourable and unfavourable regions may indeed not be known a priori, especially for exotic species whose hosts in native range and newly-colonised areas can be different. Assuming that the species is modelled by a logistic-like reaction-diffusion equation, we prove that the spatial arrangement of the favourable and unfavourable regions can theoretically be determined using only partial measurements of the population density: 1) a local ``spatio-temporal" measurement, during a short time period and, 2) a ``spatial" measurement in the whole region susceptible to colonisation. We then present a stochastic algorithm which is proved analytically, and then...
Tipo: Journal Article Palavras-chave:  EQUATION AUX DERIVEES PARTIELLES; BIODIVERSITE; INVASION BIOLOGIQUE REACTION-DIFFUSION; BIOLOGICAL INVASION; INVERSE PROBLEM; HABITAT CONFIGURATION; CARLEMAN ESTIMATES; SIMULATED ANNEALING; MATHEMATICAL MODEL.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200962e02da8&uri=/notices/prodinra1/2010/08/
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Differences in life history strategies between an invasive and a competing resident seed predator Inra
Boivin, T.; Rouault, G.; Chalon, A.; Candau, J.N..
Competitive interactions may arise from biological invasion if a successful invasive species requires the ecological niche of a resident one. Life-history traits that make a species a successful invader are of particular interest in elucidating both invasion success and how interspecific competition may emerge. In southeastern France, the invasion of cedar forests by the seed chalcid Megastigmus schimitscheki generated competitive relationships with the resident M. pinsapinis for the exploitation of the seed resource. Among the numerous ecological traits allowing these seed predators to exploit their niche successfully, the timing of adult emergence, initial egg load and age-specific realized fecundities of females were investigated to help understanding...
Tipo: Journal Article Palavras-chave: INVASION BIOLOGIQUE; INSECTE DEPREDATEUR DES SEMENCES INITIAL EGG LOAD; BIOLOGICAL INVASION; OVIPOSITION; SEED INSECT.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008209c0f12&uri=/notices/prodinra1/2010/11/
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Dispersal polymorphism in an invasive forest pest affects its ability to establish Inra
Robinet, C.; Liebhold, A..
Given the increasing number of biological invasions, there is a crucial need toidentify life history traits that promote invasion. Invasiveness reflects capabilities for both establishment after introduction and spread following establishment. In this paper, we explore, via simulation, the interacting effects of dispersal and Allee effects on both invasion processes. Dispersal capability is a trait that has been widely recognized to facilitate invasions. However, dispersal dilutes local population densities in isolated populations and this could strengthen Allee effects, ultimately promoting extinction of invading populations. A spatiallyexplicit, stochastic individual-based model was used to simulate dispersal, mating, and growth in isolated, newly...
Tipo: Journal Article Palavras-chave: BOMBYX DISPARATE; LYMANTRIA DISPAR; EFFET ALLEE; INVASION BIOLOGIQUE; DISPERSION; MODELE STOCHASTIQUE; CYCLE DE DEVELOPPEMENT GYPSY MOTH; PEST INSECT; BIOLOGICAL INVASION; ALLET EFFECT; DISPERSAL; MATING SUCCESS; STOCHASTIC MODEL; LIFE CYCLE; POPULATION DYNAMICS.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20097f9c7f4a&uri=/notices/prodinra1/2010/09/
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Disperse with the leaves and develop locally: a successful strategy for invasive leafminers? Inra
Gilbert, M; Castellana, F.; Svatos, A.; Augustin, S.; Grégoire, J.C.; IOCB, Institute of Organic Chemistry and Biochemistry of the ASCR, Department of Natural Products (CZE).
The very fast spread of the horse-chestnut leafminer Cameraria ohridella throughout Europe has been mainly attributed to a very high dispersal ability combined with wind or human passive transportationover long distances.However, the species effective dispersal characteristics remain to be better understood. Here we present data of experiments aiming to describe the decrease in population estimate as a function of distance to a population source. Firstly, we analysed the decrease in infestation level onhorse-chestnut trees along three transect avenues departing from population source located in green areas in Brussels. Secondly, we describe the decrease in catches of pheromone traps disposed along two transects departing from an isolated group of infested...
Tipo: Conference Paper Palavras-chave: MINEUSE DU MARRONNIER; LEPIDOPTERE; DISPERSION; DENSITE DE POPULATION; INVASION BIOLOGIQUE HORSE CHESTNUT LEAFMINER; DISPERSAL; POPULATION DENSITY; BIOLOGICAL INVASION; INSECT-PLANT RELATIONSHIP.
Ano: 2004 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20078fca80b9&uri=/notices/prodinra1/2009/03/
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Dispersion in time and space affect mating success and Allee effects in invading gypsy moth populations Inra
Robinet, C.; Lance, D.R.; Thorpe, K.W.; Onufrieva, K.S.; Tobin, P.C.; Liebhold, A.M..
1.Understanding why invading populations sometimes fail to establish is of considerable relevance to the development of strategies for managing biological invasions.2.Newly arriving populations tend to be sparse and are often influenced by Allee effects. Mating failure is a typical cause of Allee effects in low-density insect populations, and dispersion of individuals in space and time can exacerbate mate-location failure in invading populations.3. Here we evaluate the relative importance of dispersal and sexual asynchrony as contributors to Allee effects in invading populations by adopting as a case study the gypsy moth (Lymantria dispar L.), an important insect defoliator for which considerable demographic information is available.4. We used...
Tipo: Journal Article Palavras-chave: BOMBYX DISPARATE; LYMANTRIA DISPAR ; INSECTE DEFOLIATEUR; INVASION BIOLOGIQUE; DISPERSION; EFFET ALLEE; PROTANDRIE; MODELE STOCHASTIQUE; DENSITE DE LA POPULATION GYPSY MOTH ; PEST INSECT; DEFOLIATOR INSECT; ALLEE EFFECT; BIOLOGICAL INVASION; POPULATION DYNAMICS; PROTANDRY; STOCHASTIC MODEL; SPATIAL MODELISATION; POPULATION DENSITY.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009b10ebf8&uri=/notices/prodinra1/2010/07/
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Ecological effects of invasive alien insects Inra
Kenis, M.; Auger-Rozenberg, M.A.; Roques, A.; Timms, L.; Péré, C.; Cock, J.W.; Settele, J.; Augustin, S.; Lopez Vaamonde, C..
A literature survey identified 403 primary research publications that investigated the ecological effects of invasive alien insects and/or the mechanisms underlying these effects. The majority of these studies were published in the last 8 years and nearly two-thirds were carried out in North America.These publications concerned 72 invasive insect species, of which two ant species, Solenopsis invicta and Linepithema humile, accounted for 18% and 14% of the studies, respectively.Most publications investigated effects on native biodiversity at population or community level. Genetic effects and, to a lesser extent, effects on ecosystem services and processes were rarely explored. We review the effects caused by different insect invaders according to: their...
Tipo: Journal Article Palavras-chave: ESPECE EXOTIQUE INVASIVE; ESPECE AUTOCHTONE; INSECTE NUISIBLE; DEGAT; IMPACT ECOLOGIQUE; INTERACTION TROPHIQUE; HERBIVORE; PARASITE; PARASITOIDE; POLLINISATEUR PREDATOR; POLLINATOR; INVASIVE ALIEN SPECIES; NATIVE SPECIES; PEST INSECT; BIODIVERSITY; ECOLOGICAL EFFECT; ENVIRONMENTAL IMPACT; ECOLOGICAL IMPACT; BIOLOGICAL INVASION; TROPHIC INTERACTION; HOST PARASITE RELATIONSHIPS.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009df08ee39&uri=/notices/prodinra1/2011/06/
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Ecologically heterogeneous populations of the invasive ant Wasmannia auropunctata within its native and introduced ranges Inra
Orivel, J.; Grangier, J.; Foucaud, J.; Le Breton, J.; Andrès, F.X.; Jourdan, H.; Delabie, J.H.C.; Fournier, D.; Cerdan, P.; Facon, B.; Estoup, A.; Dejean, A..
The biology of most invasive species in their native geographical areas remains largely unknown. Such studies are, however, crucial in shedding light on the ecological and evolutionary processes underlying biological invasions.The present study focuses on the little fire ant 2. Wasmannia auropunctata, a species native to Central and South America that has been widely introduced and which has become invasive throughout the tropics. We characterise and compare several ecological traits of native populations in French Guiana with those in one of its introduced ranges, New Caledonia.We found ecologically heterogeneous populations of 3. W. auropunctata coexisting in the species’ native geographical area. First, we found populations restricted to naturally...
Tipo: Journal Article Palavras-chave: BIOLOGICAL INVASION; DISTURBANCE; ECOLOGICAL RAITS; NATIVE; WASMANNIA AUROPUNCTATA; AIRE DE REPARTITION NATURELLE; ESPECES INVASIVES; FOURMI DE FEU.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011edf5f41a&uri=/notices/prodinra1/2011/06/
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Genetic structure and functioning of alien ship rat populations from a Corsican micro-insular complex Inra
Abdelkrim, J.; Pascal, M.; Samadi, S..
The detrimental effects of the introduced ship rat on bird species on the Lavezzi Mediterranean archipelago has led to the decision to eradicate the rodent from the main island, Lavezzu (73 ha), as well as from several neighbouring islets. A genetic study using eight microsatellite markers has revealed some of the dynamics of this rat population. First, it has been shown that the rat population was genetically stable (no departure from Hardy-Weinberg equilibrium and no linkage disequilibrium) and as suggested by paleontological data, established for a long time. This information is encouraging in term of viability of the eradication campaign in the long term, even if rare immigration events cannot be excluded. Second, this study shows that rats are likely...
Tipo: Journal Article Palavras-chave: INVASION BIOLOGIQUE; ESPECE INVASIVE; ERADICATION; POPULATION ANIMALE; MICROSATELLITE; ILE; MILIEU INSULAIRE SHIP RAT; BIOLOGICAL INVASION; ISLANDS; GENE FLOW; MICROSATELLITES.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20093edb7feb&uri=/notices/prodinra1/2010/11/
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Homogenization and influence of fragmentation in a biological invasion model Inra
El Smaily, M.; Hamel, F.; Roques, L..
In this paper, some properties of the minimal speeds of pulsating Fisher-KPP fronts in periodic environments are established. The limit ofthe speeds at the homogenization limit is proved rigorously. Near this limit,generically, the fronts move faster when the spatial period is enlarged, but thespeeds vary only at the second order. The dependence of the speeds on habitatfragmentation is also analyzed in the case of the patch model.
Tipo: Journal Article Palavras-chave: INVASION BIOLOGIQUE; FRONT FISHER-KPP; FRAGMENTATION; FRONT PULSANT PULSATING FISHER-KPP FRONT; BIOLOGICAL INVASION; MODELISATION; FRAGMENTATION.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200977321adf&uri=/notices/prodinra1/2010/01/
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Human-mediated long-distance jumps of the pine processionary moth in Europe Inra
Robinet, C.; Imbert, C.E.; Rousselet, J.; Sauvard, D.; Garcia, J.; Goussard, F.; Roques, A..
Although climate change is currently affecting the distribution of many species, insects are particularly impacted because of their high sensitivity to temperature. The pine processionary moth, Thaumetopoea pityocampa, is a forest insect extending its distribution in response to climate warming. Some pioneer colonies were recently detected far beyond the main range, near Paris and in eastern France. This study tracked the origin and pathways of these pioneer colonies through a combined use of genetic markers, measurement of female flight capabilities, and comparative analyses of the natural enemy complexes. This study also aimed to determine the establishment capability beyond the main range, considering the survival rate during two recent cold periods....
Tipo: Journal Article Palavras-chave: THAUMETOPOEA PITYOCAMPA; LEPIDOPTERA; PROCESSIONNAIRE DU PIN; INSECTE RAVAGEUR; INVASION BIOLOGIQUE; DISPERSION; AIRE DE REPARTITION; RECHAUFFEMENT CLIMATIQUE; ACTIVITE HUMAINE; MARQUEUR GENETIQUE; VOL PINE PROCESSIONARY MOTH; PEST INSECT; CLIMATIC CHANGE; WARMING CLIMATE; BIOLOGICAL INVASION; RANGE EXPANSION; DISTRIBUTION RANGE; HUMAIN ACTIVITY; GENETIC MARKER; POPULATION DYNAMICS; POPULATION BIOLOGY; FLIGHT; FEMALE.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011220ccd2&uri=/notices/prodinra1/2011/05/
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Hymenoptera Inra
Rasplus, J.Y.; Villemant, C.; Paiva, M.R.; Delvare, G.; Roques, A..
We present the first review of Hymenoptera alien to Europe. Our study revealed that nearly 300 species of Hymenoptera belonging to 30 families have been introduced to Europe. In terms of alien species diversity within invertebrate orders, this result ranks Hymenoptera third following Coleoptera and Hemiptera. Two third of alien Hymenoptera are parasitoids or hyperparasitoids that were mostly introduced for biological control purposes. Only 35 phytophagous species, 47 predator species and 3 species of pollinators have been introduced. Six families of wasps (Aphelinidae, Encyrtidae, Eulophidae, Braconidae, Torymidae, Pteromalidae) represent together with ants (Formicidae) about 80% of the alien Hymenoptera introduced to Europe. The three most diverse...
Tipo: Book Chapter Palavras-chave: ESPECE INVASIVE; HYMENOPTERE HYMENOPTERA; ALIEN; BIOLOGICAL INVASION.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010335e87a0&uri=/notices/prodinra1/2011/01/
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Lost and lonely gypsy moths: mate location failure as a mechanism causing an Allee effect in the gypsy moth Inra
Robinet, C.; Liebhold, A.; Gray, D.; Thorpe, K. W.; Tcheslavskaia, K. S.; Lance, D. R..
Tipo: Meeting Paper Palavras-chave: INVASION BIOLOGIQUE; DISPERSION; EFFET ALLEE; DENSITE DE LA POPULATION GYPSY MOTH; PEST INSECT; BIOLOGICAL INVASION; ALLEE EFFECT; PHENOLOGY; SPATIAL MODELISATION; POPULATION DENSITY.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009db2aba2b&uri=/notices/prodinra1/2010/07/
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Mating success diminished by isolation in space and time Inra
Robinet, C.; Gray, D.; Liebhold, A..
Tipo: Meeting Paper Palavras-chave: INVASION BIOLOGIQUE; DISPERSION; EFFET ALLEE; DENSITE DE LA POPULATION GYPSY MOTH; PEST INSECT; BIOLOGICAL INVASION; ALLEE EFFECT; PHENOLOGY; SPATIAL MODELISATION; POPULATION DENSITY.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200977d7da0a&uri=/notices/prodinra1/2010/07/
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Pattern of invasion by Cameraria ohridella in France: a comparison with Germany Inra
Augustin, S.; Guichard, S.; Gilbert, M.; IOCB, Institute of Organic Chemistry and Biochemistry of the ASCR, Department of Natural Products (CZE).
Although it is likely that the horse chestnut leaf miner Cameraria ohridella (Lepidoptera: Gracillaridae)entered France in the course of 1998, its first observation was recorded near Paris in 2000. The rapid spread of the leafminer throughout Europe suggested that the country would be quickly invaded, and surveys were carried out in 2001, 2002 and 2003 to follow its nationwide spread. Surveys aiming at detecting the presence of the pest by visual observation of leaf damages were carried out in late summer/early autumn in the centre and East of the country in 2001, whereas they were extended to the West in 2002 and 2003. The pattern of spread derived from the spatial analysis of these data is compared to the pattern of spread already described for Germany...
Tipo: Conference Paper Palavras-chave: MINEUSE DU MARRONNIER; LEPIDOPTERE; DISPERSION; DENSITE DE POPULATION; INVASION BIOLOGIQUE; OBSERVATION HORSE CHESTNUT LEAFMINER; DISPERSAL; POPULATION DENSITY; BIOLOGICAL INVASION; POPULATION DYNAMICS; SPATIAL ANALYSIS.
Ano: 2004 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007c4fee13&uri=/notices/prodinra1/2009/03/
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Phenotypic variation in invasive and biocontrol populations of the harlequin ladybird, Harmonia axyridis Inra
Lombaert, E.; Malausa, T.; Devred, R.; Estoup, A..
Despite numerous releases for biological control purposes during more than 20 years in Europe, Harmonia axyridis failed to become established until the beginning of the 21st century. Its status as invasive alien species is now widely recognised. Theory suggests that invasive populations should evolve toward greater phenotypic plasticity because they encounter differing environments during the invasion process. On the contrary, populations used for biological control have been maintained under artificial rearing conditions for many generations; they are hence expected to become specialised on a narrow range of environments and show lower phenotypic plasticity. Here we compared phenotypic traits and the extent of adaptive phenotypic plasticity in two...
Tipo: Journal Article Palavras-chave: ADAPTATIVE PHENOTYPIC PLASTICITY; ALIEN SPECIES; BIOLOGICAL CONTROL; HARMONIA AXYRIDIS; BIOLOGICAL INVASION.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008bad0878a&uri=/notices/prodinra1/2010/11/
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Reasons for and effects of changes in the parasitoid complex of the horse chestnut leafminer, Cameraria ohridella (Lepidoptera, Gracillariidae) Inra
Grabenweger, G.; Augustin, S.; Avtzis, N.; Bacher, S.; Freise, J.; Girardoz, S.; Guichard, S.; Heitland, W.; Kehrli, P.; Kenis, M.; Lethmayer, C.; Stolz, M.; Tomov, R.; Volter, L..
The parasitism of the horse chestnut leafminer remains at a low level in Europe since many years. As a consequence, horse chestnuts in regions with more than 20years of C. ohridella infestation still suffer from heavy leafminer attack.However, results of our investigations show changes in the parasitoid complex over the years, reflecting three different strategies exemplified by three parasitoidspecies. (1) The abundance of the most common parasitoid, Minotetrastichus frontalis, seems to remain at the same low level, indicating that the parasitoid does not actively search for special leafminer hosts but rather encounter them by chance. The relative impact of these species decreases as other parasitoids gain importance. (2) Other species, like Pediobius...
Tipo: Conference Paper Palavras-chave: MINEUSE DU MARRONNIER D'INDE; LEPIDOPTERE; INVASION BIOLOGIQUE; ATTAQUE; DEGAT; PARASITISME; CAMERARIA OHRIDELLA; LEPIDOPTERA; GRACILLARIIDAE HORSE CHESTNUT LEAFMINER; BIOLOGICAL INVASION; DAMAGE; PEST INSECT; PARASITISM; HOST PARASITE RELATIONSHIPS  .
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200765eacbf1&uri=/notices/prodinra1/2011/05/
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The mini-Caterpillar of the horse chestnut tree – a new tree devastator in the city Inra
Augustin, S..
Tipo: Journal Article Palavras-chave: MINEUSE DU MARRONNIER D'INDE; LEPIDOPTERE; INVASION BIOLOGIQUE; INSECTE RAVAGEUR; DISPERSION; DEGAT; CAMERARIA OHRIDELLA; LEPIDOPTERA; GRACILLARIIDAE HORSE CHESTNUT LEAFMINER; PEST INSECT; BIOLOGICAL INVASION; DISPERSAL; DAMAGE; BIOLOGICAL CONTROL.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200952715061&uri=/notices/prodinra1/2009/11/
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The role of Allee effects in gypsy moth (Lymantria dispar (L.),invasions Inra
Tobin, P.C.; Robinet, C.; Johnson, D.M.; Whitmire, S.L.; Bjørnstad, O.N.; Liebhold, A.M..
Allee effects have been applied historically in efforts to understand the low-density population dynamics of rare and endangered species. Many biological invasions likewise experience the phenomenon of decreasing population growth rates at low population densities because most founding populations of introduced nonnative species occur at low densities. In range expansion of established species, the initial colonizers of habitat beyond the organism’s current range are usually at low density, and thus could be subject to Allee dynamics. There has been consistent empirical and theoretical evidence demonstrating, and in some cases quantifying, the role of Allee dynamics in the gypsy moth, Lymantria dispar (L.), invasion of North America. In this review, we...
Tipo: Journal Article Palavras-chave: BOMBYX DISPARATE; LYMANTRIA DISPAR ; INVASION BIOLOGIQUE; EFFET ALLEE; DISPERSION; EXPANSION; ESPECE NON INDIGENE GYPSY MOTH; BIOLOGICAL INVASION; ALLEE EFFECT; MATTING SUCCESS; PREDATOR; NON INDIGENOUS SPECIES; SPREAD; RANGE EXPANSION; NORD AMERICA.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009ac827619&uri=/notices/prodinra1/2010/08/
Registros recuperados: 21
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