scholarly journals Dichrocephala integrifolia (Astereae, Asteraceae), a new exotic genus and species for Mexico and second record for the New World

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Oscar Hinojosa-Espinosa ◽  
Daniel Potter ◽  
Mario Ishiki ◽  
Enrique Ortiz ◽  
José Luis Villaseñor
Keyword(s):  
Central America ◽  
Ecological Niche ◽  
New World ◽  
Ecological Niche Model ◽  
Morphological Description ◽  
Niche Modelling ◽  
Southern Mexico ◽  
Niche Model ◽  
High Dispersal ◽  
The Caribbean

Background: Dichrocephala is an Old-World genus of the tribe Astereae within the family Asteraceae. One species, D. integrifolia, has been recently reported as introduced in the New World from a pair of collections from Guatemala. During field work in the state of Chiapas in southern Mexico, the species was found and collected. This is the first record of both the genus and species in Mexico and the second record for these taxa in the Americas. Question: Can D. integrifolia occur in more areas in the New World besides those known from Guatemala and Chiapas? Studied species: Dichrocephala integrifolia Study site and dates: Mexico, Central America, and the Caribbean. Methods: An ecological niche model was made and it was projected into the New World. Results: The ecological niche model predicts the records of D. integrifolia in the New World in addition to other ecologically suitable areas, mostly in pine-oak forests in Mexico and Central America and zones with humid mountain and pine forest in the Caribbean. Moreover, a morphological description and illustrations of the species are provided to help with its identification. Conclusions: It is desirable to avoid the further spreading of D. integrifolia in the New World. Although this species is not considered as invasive, it seems to have a high dispersal potential and the ecological niche modelling indicates larger regions in the Americas that might be affected.

scholarly journals New records of Pygmy Round-eared Bat, Lophostoma brasiliense Peters, 1867 (Chiroptera, Phyllostomidae), and updated distribution in Colombia

Check List ◽  
2020 ◽  
Vol 16 (2) ◽  
pp. 277-285
Author(s):  
Diego A. Esquivel ◽  
Angie P. Penagos ◽  
Sebastián García-R. ◽  
David Bennett
Keyword(s):  
Ecological Niche ◽  
New Records ◽  
Conservation Status ◽  
Wide Distribution ◽  
Neotropical Region ◽  
Ecological Niche Modelling ◽  
Niche Modelling ◽  
Southern Mexico ◽  
New Localities ◽  
The Caribbean

Lophostoma brasiliense Peters, 1867 has a wide distribution in the Neotropical region, with records extending from southern Mexico to central Paraguay and Brazil. In Colombia the distribution of this species seems to be discontinuous, due to a scarcity of records, which also makes it difficult to know about its threats and conservation status. Here, we report three new localities from Amazonia, Andean and Orinoquia regions. We updated the distribution and performed ecological niche modelling that suggest a wider presence of this species on the Caribbean and the Orinoquia region. Finally, we added some ecological notes about this species.

scholarly journals First record of the invasive bee Anthidium manicatum (Hymenoptera: Megachilidae) in Chile

2015 ◽  
pp. 1-5 ◽  
Author(s):  
Jose Miguel Montalva ◽  
Mauro Ríos ◽  
Felipe Vivallo
Keyword(s):  
South America ◽  
New Record ◽  
Ecological Niche ◽  
First Record ◽  
Ecological Niche Model ◽  
Metropolitan Region ◽  
Niche Model ◽  
Invasive Range ◽  
First Time ◽  
Anthidium Manicatum

The Palearctic wool carder bee Anthidium manicatum (Linnaeus) is recorded for the first time in Chile based on eight specimens collected on Lavandula sp. (Lamiaceae) in San Bernardo, Metropolitan Region.  This new record expands the invasive range of this species in South America, confirming previous predictions based on an ecological niche model.

From Niches to Distributions

2011 ◽  
Author(s):  
A. Townsend Peterson ◽  
Jorge Soberón ◽  
Richard G. Pearson ◽  
Robert P. Anderson ◽  
Enrique Martínez-Meyer ◽  
...  
Keyword(s):  
Ecological Niche ◽  
Ecological Niche Model ◽  
Niche Model

This chapter explores the conceptual bases for the discrepancy between species’ potential geographic distributional areas and their occupied distributional areas, focusing on the case of conditions when the Eltonian Noise Hypothesis is true as well as the necessary modifications when it is not. It first considers the meaning of the potential distributional area and the reasons why an ecological niche model may not estimate it correctly. It then explains why a species may not be at equilibrium with its potential distributional area, but rather inhabits only some subset of areas suitable for it. It also discusses nonequilibrium distributions that may arise in terms of the BAM diagram before concluding with an analysis of procedures for further processing of a niche model, which expresses potential geographic distributional area, to yield an estimate of occupied distributional area.

scholarly journals Do Ecological Niche Model Predictions Reflect the Adaptive Landscape of Species?: A Test Using Myristica malabarica Lam., an Endemic Tree in the Western Ghats, India

PLoS ONE ◽  
2013 ◽  
Vol 8 (11) ◽  
pp. e82066 ◽  
Author(s):  
Shivaprakash K. Nagaraju ◽  
Ravikanth Gudasalamani ◽  
Narayani Barve ◽  
Jaboury Ghazoul ◽  
Ganeshaiah Kotiganahalli Narayanagowda ◽  
...  
Keyword(s):  
Western Ghats ◽  
Ecological Niche ◽  
Ecological Niche Model ◽  
Adaptive Landscape ◽  
Niche Model ◽  
Model Predictions ◽  
The Western Ghats

An assessment of the impact of climate change on the distribution of the grey-shanked douc Pygathrix cinerea using an ecological niche model

Primates ◽  
2019 ◽  
Vol 61 (2) ◽  
pp. 267-275
Author(s):  
Thinh T. Vu ◽  
Dung V. Tran ◽  
Hoa T. P. Tran ◽  
Manh D. Nguyen ◽  
Tuan A. Do ◽  
...  
Keyword(s):  
Climate Change ◽  
Ecological Niche ◽  
Ecological Niche Model ◽  
Niche Model ◽  
Impact Of Climate Change ◽  
The Impact ◽  
Pygathrix Cinerea

Spatial Risk Distribution of Dengue Based on the Ecological Niche Model of Aedes aegypti (Diptera: Culicidae) in the Central Mexican Highlands

2019 ◽  
Vol 57 (3) ◽  
pp. 728-737
Author(s):  
Raymundo Ordoñez-Sierra ◽  
Carlos Alberto Mastachi-Loza ◽  
Carlos Díaz-Delgado ◽  
Angela P Cuervo-Robayo ◽  
Carlos Roberto Fonseca Ortiz ◽  
...  
Keyword(s):  
Ecological Niche ◽  
Potential Distribution ◽  
Vegetation Index ◽  
Ecological Niche Model ◽  
Distribution Model ◽  
Large Area ◽  
Niche Model ◽  
Spatial Risk ◽  
Precipitation Seasonality ◽  
Risk Distribution

Abstract Dengue is the most important viral disease transmitted by mosquitoes, predominantly Aedes (Stegomyia) aegypti (L.) (Diptera:Culicidae). Forty percent of the world’s population is at risk of contracting the disease, and a large area of Mexico presents suitable environmental conditions for the life cycle of Ae. aegypti. In particular, the Central Mexican Highlands have a high population density, increasing the risk of transmission and propagation of dengue. In the present study, the potential distribution of Ae. aegypti was modeled under an ecological niche approach using the maximum entropy technique with the aim of determining the spatial risk distribution of dengue. The final model of five variables (minimum temperature of the coldest month |Bio6|, precipitation of the wettest month |Bio13|, precipitation seasonality |Bio15|, the normalized difference vegetation index (NDVI), and relative humidity) contributed to more than 90% of the model’s performance. The results of the potential distribution model were then compared with the number of dengue cases per locality during the 2009–2015 period considering four suitability of presence categories. Category 4 corresponded with the highest suitability of presence (0.747 to 1) and the greatest risk of dengue (odds ratio [OR] = 103.27; P < 0.001). In conclusion, the present ecological niche model represents an important tool for the monitoring of dengue and the identification of high-risk areas.

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