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1

Ecological niche modeling of invasive plant species according to invasion status and management needs: the case of Chromolaena odorata (Asteraceae) in South Africa

100%
Suarez-Mota M. E., Ortiz E., Villasenor J. L., Espinosa-Garcia F. J.
Polish Journal of Ecology
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2016
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tom 64
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nr 3
The management of invasive plant species (IPS) requires knowledge of areas susceptible to invasion and the origin of the invasive biotypes. Ecological niche models (ENMs) are useful for these purposes, but modeling results depend on the data sources. We propose a synthetic approach to determine the selection of data source areas considering the invasion status of an IPS and management objectives to deal with the IPS. We assessed the importance of data source for ENMs and their projections to invasive areas using Chromolaena odorata, a Neotropical weed, in South Africa where this IPS is invading. We used MaxEnt to perform ENMs using different datasets from C. odorata's native range and from South Africa. We employed reciprocal ENM projections to find the probable native region of the plants invading South Africa. ENMs varied depending on the native area selected as the hypothetical invasion source. The modeling approach using worldwide data was most appropriate for prevention purposes, whereas the modelling approach using data from the Americas was most suitable for estimating invasion-susceptible areas in South Africa. The South African ENM was useful for reciprocal modelling but not for prediction of areas susceptible to invasion. ENM projections from the Americas to South Africa and vice-versa identified two native areas as possible invasion sources (northern Mexico and southern tropical South America). Their concordance with the South African ENM can be useful to search for natural enemies of C. odorata's and to reinforce the identification of invasion-susceptible areas in South Africa. We suggest that the various ENM obtained with the synthetic approach in modeling with different data sources for C. odorata cover the scenarios that depend on management purpose and invasion status for this weed.
2

Predicted distributions, niche comparisons, and conservation status of the spotted linsang (Prionodon pardicolor) and banded linsang (Prionodon linsang)

100%
Jennings A. P., Veron G.
Acta Theriologica
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2015
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tom 60
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nr 2
Knowledge of a species’ distribution and habitat preferences is of paramount importance when assessing its conservation status. We used accurately recorded occurrence records and ecological niche modeling to predict the distribution of two poorly known small carnivore species that occur in Asia, the spotted linsang (Prionodon pardicolor) and banded linsang (Prionodon linsang), and analyzed their niche overlaps for habitat and elevation. We then assessed the loss of their suitable habitat and estimated the proportion of predicted presence under protected areas. We identified and assessed possible anthropogenic threats, and used our modeling predictions to recommend surveying priorities. Our study confirmed that these two linsangs are geographically separated, with no known overlap of their distributions. Our results indicated that the habitat and elevation niches of these two linsangs are similar: they both occur primarily in evergreen forest and can be found at all elevations up to around 3,000 m. Although these two linsangs might be allopatric due to intense interspecific competition between them, other explanations could explain their distribution patterns, such as biogeographical and ecological barriers. Our findings suggest that these two linsangs might be threatened by the loss, degradation, and fragmentation of tropical evergreen forests. Urgent field studies are thus needed to learn more about their habitat requirements and the impact of anthropogenic threats, including tropical forest disturbance and hunting.
3

Catalogue, geographic distribution and ecological niche models of the melanocratoid Platynotina (Coleoptera: Tenebrionidae: Pedinini)

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Kaminski M. J., Ras M.
Annales Zoologici
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2012
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tom 62
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nr 2
The catalogue of all known species of the melanocratoid lineage of the subtribe Platynotina Koch, 1953 is presented. Eight genera containing 30 species are listed. The data of primary and secondary types is provided. Distribution of the species is listed and illustrated on 9 maps. New distributional data is published for: Melanocratus fairmairei Iwan, 1996, M. validipes Fairmaire, 1895, Sebastianus madagascariensis Iwan, 1999, S. magnus Iwan, 1996, S. ovoideus (Fairmaire, 1902), S. projectus Iwan, 1996, Styphacus girardi Iwan, 2004 and S. phreneticus Iwan, 1996. The relationship between species richness and Malagasy ecoregions is analysed and discussed. MaxEnt software was used to model the hypothetical range of chosen species and indicate the most important abiotic factors responsible for observed distribution. Results of MaxEnt analysis suggest that the precipitation has the major limiting impact from all of analysed factors.
4

Taxonomy, distribution and ecological niche models of the Afrotropical platynotoid Platynotina (Tenebrionidae: Pedinini)

80%
Kaminski M. J., Iwan D.
Annales Zoologici
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2013
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tom 63
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nr 4
The catalogue of all known species of the Afrotropical platynotoid lineage of the subtribe Platynotina Mulsant et Rey, 1853 is presented. Twenty one genera containing 127 species (132 subspecies) are listed. The data of primary and secondary types is provided. Based on the article 45.6.4. of the International Code of Zoological Nomenclature Opatrinus edentatus Koch, 1956 and O. pinheyi Koch, 1956 are consider as unavailable names. Distribution of the species is listed and illustrated on 152 maps. The relationship between species richness and Afrotropical ecoregions is analyzed and discussed. MaxEnt software was used to model the hypothetical range of chosen species.
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