Analysis of the geographical distribution of Psammolestes Bergroth (Hemiptera: Heteroptera: Reduviidae: Triatominae) in South America, with new records of Psammolestes tertius Lent & Jurberg

Zootaxa ◽  
2009 ◽  
Vol 2033 (1) ◽  
pp. 41-48 ◽  
Author(s):  
RODRIGO GURGEL-GONÇALVES ◽  
REINALDA BANDEIRA SILVA
Keyword(s):  
South America ◽  
Geographical Distribution ◽  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
New Records ◽  
Climatic Factors ◽  
Niche Modeling ◽  
Niche Differences ◽  
Rule Set ◽  
Venezuelan Llanos

The genus Psammolestes is comprised of three recognized Rhodniini species: P. arthuri, P. coreodes, and P. tertius. The geographical distribution of these triatomines in South America was analyzed using ecological niche modeling. Additionally, temperature, precipitation, and altitude limits for these species were estimated. The genetic algorithm for rule-set production (GARP) was applied to predict their geographical distribution. The models used were able to predict, with high probabilities, the occurrence of P. tertius in open woodlands of South America (mainly Cerrado and Caatinga ecoregions), making it the Psammolestes species with the widest distribution. P. arthuri presented a discontinuous potential distribution covering the Venezuelan Llanos and southeastern/southwestern fringes of Amazonia. P. coreodes presented the southernmost area of distribution, occurring mainly in the Argentinean Chaco. The models also support potential areas of co-occurrence for P. tertius and P. coreodes in southwestern Brazil. Clear ecological niche differences were observed for the three species: while P. arthuri occurred in warm and humid areas, P. coreodes occupied the driest and coldest areas. P. tertius presented intermediate climatological limits and occurred in the highest altitudes. Although climatic factors may determine the triatomine distribution, biotic factors, such as the association with thornbirds (Phacellodomus), may also influence the geographical distribution of Psammolestes species. Finally, this study confirms the usefulness of ecological niche modeling as a tool for studies on biogeographical aspects of triatomines.

scholarly journals New record and update on the geographical distribution of Pintomyia monticola (Costa Lima, 1932) (Diptera: Psychodidae) in South America

Check List ◽  
2015 ◽  
Vol 11 (2) ◽  
pp. 1566 ◽  
Author(s):  
Andrey José de Andrade ◽  
Rodrigo Gurgel-Gonçalves
Keyword(s):  
South America ◽  
Geographical Distribution ◽  
New Record ◽  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
Niche Modeling ◽  
Sand Fly ◽  
Ecological Aspects ◽  
First Time

The phlebotomine sand fly Pintomyia monticola (Costa Lima, 1932) is recorded for the first time in Brasília, central-west Brazil. A review of the geographical distribution of the species in South America is presented, and its distribution is extended. The potential geographical distribution of P. monticola is predicted based on ecological niche modeling. Ecological aspects of this species are discussed.

scholarly journals Biogeografía del tomate Solanum lycopersicum var. cerasiforme (Solanaceae) en su centro de origen (sur de América) y de domesticación (México)

2019 ◽  
Vol 67 (4) ◽  
Author(s):  
Gino Delices ◽  
Raúl Otto ◽  
Rosalia Nuñez Pastrana ◽  
Pablo Andrés Meza ◽  
Ricardo Serna-Lagunez ◽  
...  
Keyword(s):  
South America ◽  
Solanum Lycopersicum ◽  
Environmental Conditions ◽  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
New Records ◽  
The State ◽  
Niche Modeling ◽  
Climatic Variables ◽  
Tomato Production

The understanding geography and ecology role in the distribution of Solanum lycopersicum var. cerasiforme is essential for knowledge of areas with potential for tomato production and conservation. In the present work, we analyzed the environmental conditions of the center of origin of the species in South America and we compared them with records in Mexico, particularly in the state of Veracruz, tomato domestication region. We used eight climatic variables predictors and the latitude and longitude data of the species collections registered in literature and database to run two models, the first one for the south of America and the second one for Mexico. We evaluated the models by using the partial ROC method; we conducted a niche similarity and equivalency test to compare both models. We carried out a fieldwork to observe new records of the species and register the environmental conditions in which they growth. The main climatic variables of temperature were the most important for the ecological niche modeling of South America and the ecological niche modeling of Mexico. The models performed very well cause the partial roc test showed significant value for both models1.86 y 1.71 (p<0.0001). Based on our fieldwork, we registered 27 new records, we can find wild tomatoes between 14 and 2 100 amsl in areas with a range of temperature average 19-24 ºC and annual average precipitation 1 166-2 260 mm. Finally, we find out that there is climatic differentiation between South America and Mexico (most areas of the state of Veracruz) for the species.

scholarly journals Potential Distribution of Chagas Disease Vectors (Hemiptera, Reduviidae, Triatominae) in Colombia, Based on Ecological Niche Modeling

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Gabriel Parra-Henao ◽  
Laura C. Suárez-Escudero ◽  
Sebastián González-Caro
Keyword(s):  
Chagas Disease ◽  
Sierra Nevada ◽  
Geographic Distribution ◽  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
Climatic Factors ◽  
Niche Modeling ◽  
Triatomine Species ◽  
Local Risk ◽  
And Control

Ecological niche modeling of Triatominae bugs allow us to establish the local risk of transmission of the parasiteTrypanosoma cruzi,which causes Chagas disease.This information could help to guide health authority recommendations on infection monitoring, prevention, and control. In this study, we estimated the geographic distribution of triatomine species in Colombia and identified the relationship between landscape structure and climatic factors influencing their occurrence. A total of 2451 records of 4 triatomine species (Panstrongylus geniculatus,Rhodnius pallescens,R. prolixus, andTriatoma maculata) were analyzed.The variables that provided more information to explain the ecologic niche of these vectors were related to precipitation, altitude, and temperature. We found that the species with the broadest potential geographic distribution wereP. geniculatus,R. pallescens, andR. prolixus. In general, the models predicted the highest occurrence probability of these vectors in the eastern slope of the Eastern Cordillera, the southern region of the Magdalena valley, and the Sierra Nevada of Santa Marta.

scholarly journals New localities and distribution models inform the conservation status of the endangered lizard Anolis guamuhaya (Squamata: Dactyloidae) in central Cuba

2020 ◽  
Vol 19 (1) ◽  
pp. 13-33
Author(s):  
Tomás M. Rodríguez-Cabrera ◽  
Javier Torres ◽  
Carlos A. Mancina ◽  
Ruben Marrero ◽  
Yasel U. Alfonso ◽  
...  
Keyword(s):  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
New Records ◽  
Global Climate ◽  
Conservation Status ◽  
Niche Modeling ◽  
Distribution Models ◽  
Area Of Occupancy ◽  
New Localities ◽  
Iucn Criteria

New localities and distribution models inform the conservation status of the endangered lizard Anolis guamuhaya (Squamata: Dactyloidae) from central Cuba. Anolis guamuhaya is known from seven localities restricted to the Guamuhaya Massif in central Cuba and is always associated with mountane ecosystems above 300 m a.s.l. Previous evaluations of the conservation status of the species based on the estimated number of mature individuals have categorized the anole as Endangered. Eight new records of A. guamuhaya are provided here. These double the number of known localities, and two represent the first records of the species in lowland areas, apart from the Guamuhaya Massif. The new records extend the elevational range of the species from 15 m to above 1000 m. We used ecological niche modeling based on all of the locality records, along with what we considered the most appropriate IUCN criteria according to the available information (Criterion B) to reevaluate the conservation status of the species. These new records of A. guamuhaya increase its area of occupancy up to a total of 60 km2 , and its extent of occurrence up to 648 km2 . Despite this increase in geographic range, the species meets the IUCN criteria in the category of Endangered. We used ecological niche modeling to predict possible trends for the species under differing scenarios of global climate change, all of which portend a drastic reduction in area climatically suitable for A. guamuhaya.

scholarly journals Occurrence of Cabassous tatouay (Cingulata, Dasypodidae) in Rio Grande do Sul and its potential distribution in southern Brazil

2015 ◽  
Vol 105 (2) ◽  
pp. 235-241 ◽  
Author(s):  
Stefan V. de Oliveira ◽  
Luiz L. C. Corrêa ◽  
Felipe B. Peters ◽  
Fábio D. Mazim ◽  
Felipe M. Garcias ◽  
...  
Keyword(s):  
South America ◽  
Rare Species ◽  
Ecological Niche ◽  
Potential Distribution ◽  
Ecological Niche Modeling ◽  
Rio Grande ◽  
Niche Modeling ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Southern South America

ABSTRACT Cabossous tatouay Desmarest, 1804 is considered a rare species in southern South America, and Rio Grande do Sul State, Brazil, records of the species are scarce and inaccurate. This study reports 40 localities for C. tatouay, and provides a map of the species' potential distribution using ecological niche modeling (ENM). The ENM indicated that in this region C. tatouay is associated with open grasslands, including the areas of "Pampas" and the open fields in the highlands of the Atlantic Forest. This study contributes to the information about the greater naked-tailed armadillo in southern Brazil, and provides data key to its future conservation.

scholarly journals Climatic limits for the present European distribution of hornbeam (Carpinus betulus), with special reference to Ukraine

2018 ◽  
Author(s):  
Volodymyr Tytar
Keyword(s):  
Special Reference ◽  
Tree Species ◽  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
Climatic Factors ◽  
Niche Modeling ◽  
Limiting Factor ◽  
Carpinus Betulus ◽  
Modeling Approach ◽  
The Common

In this study, we used a ecological niche modeling approach to detect the importance of diverse climatic parameters in controlling the distribution of forest tree species, exemplified by the common hornbeam (Carpinus betulus L.), with special reference to Ukraine from where digitized data on the species has been scarce. In Ukraine populations of this tree species are found on the edge of its home range and are exposed to extreme climate conditions. The main objectives of the present study were to model the European-wide ecological niche of the common hornbeam and investigate primary climatic factors that control the potential distribution of this tree in Ukraine. Using an ecological niche modeling approach, we consider having reliably modeled the European-wide bioclimatic niche of the common hornbeam for predicting the response of species geographical distribution to climate. Most contributing to the model was the mean monthly PET (potential evapotranspiration) of the coldest quarter, continentality and annual PET. In terms of the Most Limiting Factor, in Ukraine continentality is crucial throughout the majority of the country.

Sign in / Sign up

Export Citation Format

Share Document