Maximum entropy modeling of geographic distributions of the flea beetle species endemic in Italy (Coleoptera: Chrysomelidae: Galerucinae: Alticini)

Urbani, Fabrizia; D’Alessandro, Paola; Frasca, Roberta; Biondi, Maurizio

doi:10.1016/j.jcz.2015.08.002

Cited by 42 publications

(27 citation statements)

References 42 publications

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“…The SDMs for the two target species and for all the different time-frames were built through the implementation of the ‘biomod2’ package 47 in R environment 39 . Species Distribution Models and cartographic tools are more and more used in recent years to interpret biogeographic processes 36 , 48 , 49 , conservation and biodiversity issues 50 – 53 , giving interesting results when combined 54 – 58 . This package permits to obtain Ensemble Models, a powerful technique which proportionally combines models obtained from different processes into one single prediction.…”

Section: Methodsmentioning

confidence: 99%

Evidences for a shared history for spectacled salamanders, haplotypes and climate

Iannella

D’Alessandro

Biondi

2018

Sci Rep

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The so-called glacial refugia, formed during the Pleistocene climatic oscillations, played a major role in shaping the distribution of European species, triggering migrations or isolating populations. Many of these events were recently investigated by genetic data, mainly for the European Last Glacial stage, in the Iberic, Italian and Greek-Balkan peninsulas. The amphibian genus Salamandrina, the most ancient living salamandrid lineage, was widespread in Europe until the climatic oscillations of Miocene probably forced it to shelter in the only suitable territory at that time, the Apennines. Nowadays this genus is endemic of peninsular Italy with two parapatric species, S. perspicillata and S. terdigitata, sharing an area of secondary contact formed after the Last Glacial Maximum. Climate is generally identified as the key factor for the interpretation of genetic data. In this research, we directly measure climate influences on the two Salamandrina known species through Ensemble Modelling techniques and post-modelling GIS analyses, integrating updated genetic data in this process. Our results confirm the hypotheses of southwards (and subsequent northwards) shifts, identify glacial refugia and corridors used for the post-glacial re-colonization. Finally, we map a contact zone deserving more sampling effort to disentangle the introgression and hybridization observed.

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Section: Methodsmentioning

confidence: 99%

Evidences for a shared history for spectacled salamanders, haplotypes and climate

Iannella

D’Alessandro

Biondi

2018

Sci Rep

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“…The set of environmental predictors used comprises: a) nineteen bioclimatic variables (BIO1-BIO19) [ 39 ] and b) elevation data (ALT), downloaded from the Worldclim database ( http://www.worldclim.com/current/ ); c) two topographic variables, namely SLOPE, representing the incline of the surface, and ASPECT, representing the “exposure”, which is the compass direction that a topographic slope faces [ 40 ]. The latter two variables are expressed in degrees and were derived from a Digital Elevation Model originating from the elevation data, using the “surface tool” in ArcGis Spatial Analyst.…”

Section: Methodsmentioning

confidence: 99%

Comparing pseudo-absences generation techniques in Boosted Regression Trees models for conservation purposes: A case study on amphibians in a protected area

et al. 2017

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Boosted Regression Trees (BRT) is one of the modelling techniques most recently applied to biodiversity conservation and it can be implemented with presence-only data through the generation of artificial absences (pseudo-absences). In this paper, three pseudo-absences generation techniques are compared, namely the generation of pseudo-absences within target-group background (TGB), testing both the weighted (WTGB) and unweighted (UTGB) scheme, and the generation at random (RDM), evaluating their performance and applicability in distribution modelling and species conservation. The choice of the target group fell on amphibians, because of their rapid decline worldwide and the frequent lack of guidelines for conservation strategies and regional-scale planning, which instead could be provided through an appropriate implementation of SDMs. Bufo bufo, Salamandrina perspicillata and Triturus carnifex were considered as target species, in order to perform our analysis with species having different ecological and distributional characteristics. The study area is the “Gran Sasso—Monti della Laga” National Park, which hosts 15 Natura 2000 sites and represents one of the most important biodiversity hotspots in Europe. Our results show that the model calibration ameliorates when using the target-group based pseudo-absences compared to the random ones, especially when applying the WTGB. Contrarily, model discrimination did not significantly vary in a consistent way among the three approaches with respect to the tree target species. Both WTGB and RDM clearly isolate the highly contributing variables, supplying many relevant indications for species conservation actions. Moreover, the assessment of pairwise variable interactions and their three-dimensional visualization further increase the amount of useful information for protected areas’ managers. Finally, we suggest the use of RDM as an admissible alternative when it is not possible to individuate a suitable set of species as a representative target-group from which the pseudo-absences can be generated.

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“…For each model based on the different GCMs used, the Area Under the Curve (AUC) of the Receiver Characteristics Operator (ROC) was used as a weight in the Multivariate Environmental Dissimilarity Index (MEDI) algorithm (Iannella et al, 2017), which proportionally combines different GCMs projections, starting with the MESS (Elith et al, 2010) maps produced by Maxent, which down-weights the extrapolations of the models. Both current and future predicted scenarios were binarized using the 10 th percentile of training presences, which is a reliable and conservative threshold when data are collected at different times by several observers (Freeman & Moisen, 2008;Rebelo & Jones, 2010;Urbani et al, 2015Urbani et al, , 2017.…”

Section: Ecological Niche Modellingmentioning

confidence: 99%

Forecasting the spread associated with climate change in Eastern Europe of the invasive Asiatic flea beetle, Luperomorpha xanthodera (Coleoptera: Chrysomelidae)

Iannella¹,

D’Alessandro²,

Biondi³

2020

Eur. J. Entomol.

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http://www.eje.cz tracted attention because of its theoretical and practical applications, especially when coupled with GIS analyses (Cerasoli et al., 2017; Iannella et al., 2018). Luperomorpha xanthodera (Fairmaire, 1888) (Coleoptera: Chrysomelidae: Galerucinae: Alticini) is an Asian polyphagous fl ea beetle, introduced into Europe in 2003 (Johnson & Booth, 2004), the adults of which feed on fl owers and larvae develop on the roots of many plants (23 genera from 19 families) (Del Bene & Conti, 2009). Numerous holes chewed by these beetles in petals and the destruction of the reproductive organs of fl owers may cause sterilization and deterioration in the aesthetic value of plants. L. xanthodera is easily and unintentionally introduced as larvae on roots of imported seedlings or as adults transported mainly as stowaways in the cargo in airplanes (Bieńkowski & Orlova-Bienkowskaja, 2018b) and then spreads like many other invasive species (Early et al., 2016). In fact, the trade in imported plants can accelerate the spread of this fl ea beetle, especially that in ornamental plants (Johnson & Booth, 2004; Beenen & Roques, 2010); currently, L. xanthodera appears to be established in many areas in its secondary range (Europe).

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Maximum entropy modeling of geographic distributions of the flea beetle species endemic in Italy (Coleoptera: Chrysomelidae: Galerucinae: Alticini)

Cited by 42 publications

References 42 publications

Evidences for a shared history for spectacled salamanders, haplotypes and climate

Evidences for a shared history for spectacled salamanders, haplotypes and climate

Comparing pseudo-absences generation techniques in Boosted Regression Trees models for conservation purposes: A case study on amphibians in a protected area

Forecasting the spread associated with climate change in Eastern Europe of the invasive Asiatic flea beetle, Luperomorpha xanthodera (Coleoptera: Chrysomelidae)

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