The small-scale spatial distribution of an invading moth

Nash, David R.; Agassiz, David J. L.; Godfray, H. Charles J.

doi:10.1007/bf00329080

Cited by 9 publications

(7 citation statements)

References 10 publications

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“…Pooling the results of the gradients observed in the three data sets, a spread rate (distance between sites with equal population densities in two successive generations) of a few hundred meters appears to be a realistic figure for C. ohridella in cities. These results are not contradictory to the much faster long‐distance spread observed in C. ohridella (estimated as 60 km per year; Šefrová & Laštuvka, 2001), as large‐scale invasions are generally associated with long‐distance passive transportation translating into stratified dispersal such as that observed in other biological invasions (e.g., Sharov & Liebhold, 1998; Gilbert et al., 2003), and already reported in Gracillariidae (e.g., Nash et al., 1995).…”

Section: Discussionsupporting

confidence: 70%

Spatial patterns and infestation processes in the horse chestnut leafminer Cameraria ohridella: a tale of two cities

Gilbert

Svatoš

Lehmann

et al. 2003

Entomologia Exp Applicata

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Spatial patterns of the horse chestnut leafminer Cameraria ohridella Deschka & Dimic (Lepidoptera: Gracillariidae) population density was analysed in the cities of Bern and Brussels in order to explore its spatial population dynamics. The surveys were carried out in Bern in 1998 and 2000 and in Brussels in 2001 to assess population density in relation to local characteristics. In Brussels, population density was also measured using pheromone traps distributed over the city and collected twice per moth generation. A quantitative relationship was found between local population density (measured by pheromone traps and survey observations) and the amount of leaves left on the ground the previous fall. Several other factors were related to observed infestation levels: the occurrence of the pathogen Guignardia aesculi was inversely related to infestation by C. ohridella in Bern in 1998 and 2000, the number of horse chestnut trees within 800 m distance was positively related to infestation level in Bern in 2000, and the proportion of green areas within 100 m and the number of other horse chestnut trees within 2000 m were positively related to infestation levels in the 2001 Brussels survey. The pattern of infestation levels as a function of distance to potential population reservoirs suggested that C. ohridella re-invades areas where overwintering leaves have been cleaned from refuge areas such as parks or urban forests. Our results indicate that the removal of leaves is a feasible first aid control measure to reduce moth population densities. However, leaf removal may not reduce moth densities when done improperly. In places where proper leaf removal is not feasible, other control measures are needed.

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Section: Discussionsupporting

confidence: 70%

Spatial patterns and infestation processes in the horse chestnut leafminer Cameraria ohridella: a tale of two cities

Gilbert

Svatoš

Lehmann

et al. 2003

Entomologia Exp Applicata

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“…''stratified'' dispersal) may be a common feature of invasions, and has already been described in several species of invasive insect (e.g. firethorn leaf miner, Phyllon-orycter leucographella (Zeller) (Lepidoptera: Grac-illariidae), Nash et al 1995; gypsy moth, Lymantria dispar (L.) (Lepidoptera: Lymantriidae), Sharov and Liebhold 1998; horse chestnut leaf miner, Cameraria ohridella (Deschka and Dimic) (Lepidoptera: Grac-illariidae), Gilbert et al 2004). This has important implications for control measures, which could be improved by preventing establishment of new focal populations or eliminating new ones rather than focusing on established invasion fronts (Moody and Mack 1988;Suarez et al 2001).…”

Section: Patterns Of Dispersalmentioning

confidence: 99%

Ecological genetics of invasive alien species

et al. 2011

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There is growing realisation that integrating genetics and ecology is critical in the context of biological invasions, since the two are explicitly linked. So far, the focus of ecological genetics of invasive alien species (IAS) has been on determining the sources and routes of invasions, and the genetic make-up of founding populations, which is critical for defining and testing ecological and evolutionary hypotheses. However an ecological genetics approach can be extended to investigate questions about invasion success and impacts on native, recipient species. Here, we discuss recent progress in the field, provide overviews of recent methodological advances, and highlight areas that we believe are of particular interest for future research. First, we discuss the main insights from studies that have inferred source populations and invasion routes using molecular genetic data, with particular focus on the role of genetic diversity, adaptation and admixture in invasion success. Second, we consider how genetic tools can lead to a better understanding of patterns of dispersal, which is critical to predicting the spread of invasive species, and how studying invasions can shed light on the evolution of dispersal. Finally, we explore the potential for combining molecular genetic data and ecological network modelling to investigate community interactions such as those between predator and prey, and host and parasite. We conclude that invasions are excellent model systems for understanding the role of natural selection in shaping phenotypes and that an ecological genetics approach offers great potential for addressing fundamental questions in invasion biology.

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“…(Coleopera: Scolytidae); Gilbert et al. 2003b; ] and in other Gracillariidae [ Phyllonorycter leucographella (Zeller); Nash et al. 1995; ].…”

Section: Patterns Of Dispersal At Different Spatial Scalesmentioning

confidence: 99%

Monitoring and dispersal of the invading GracillariidaeCameraria ohridella

Augustin¹,

Guichard²,

Heitland

et al. 2009

J Applied Entomology

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The horse‐chestnut leafminer Cameraria ohridella is an invasive lepidoptera (Gracillariidae) which has spread throughout Europe over the last two decades. The species can be detected easily because of its noticeable damage to horse‐chestnut trees leaves, which allows the easy collection of large‐scale monitoring data. It is therefore an interesting model species to study invasion processes, and this review summarizes recent progresses in that regard. The date reported here result from monitoring of C. ohridella population based on pheromone traps and visual observation of damage carried out in Belgium, France, Germany, Switzerland and the UK. The patterns of spread measured using these different monitoring method, and the key factors associated with short‐distance dispersal (within cities), and large‐scale dispersal (across landscapes) are presented and discussed.

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The small-scale spatial distribution of an invading moth

Cited by 9 publications

References 10 publications

Spatial patterns and infestation processes in the horse chestnut leafminer Cameraria ohridella: a tale of two cities

Spatial patterns and infestation processes in the horse chestnut leafminer Cameraria ohridella: a tale of two cities

Ecological genetics of invasive alien species

Monitoring and dispersal of the invading GracillariidaeCameraria ohridella

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