scholarly journals Implementing new northernmost records to modelling the distribution of Hypsiboas caingua (Anura: Hylidae) in South America

2014 ◽  
Vol 74 (4) ◽  
pp. 854-860 ◽  
Author(s):  
M Delatorre ◽  
TS Vasconcelos ◽  
NL Cunha ◽  
FI Martins ◽  
FH Oda ◽  
...  
Keyword(s):  
South America ◽  
Geographic Distribution ◽  
Scientific Literature ◽  
Climatic Data ◽  
Distribution Models ◽  
Distribution Modelling ◽  
Field Surveys ◽  
Linear Distance ◽  
New Localities ◽  
Evolutionary Aspects

New northwestern records of the striped treefrog Hypsiboas caingua (Carrizo, 1991 “1990”) are presented for Brazil, extending its known geographic distribution approximately 115 km northward (linear distance) of the previous northernmost record of the species. In all new localities, individuals of H. caingua were only found in calling activity under temperatures below 18°C. The species appears to be associated with Atlantic Forest, although it had already been recorded in Cerrado. Although the scientific literature data suggests that H. caingua presents discontinuous geographical distribution, three methods of distribution modelling based on climatic data show that the species' distribution is continuous. The gap in the distribution may be related to the lack of field surveys in the regions that connect these populations, especially in colder periods. Nevertheless, factors other than climate might also be responsible for the current distribution of H. caingua, since the species was absent in well-surveyed sites situated between the areas of modeled distribution. Therefore, further studies on natural history, populations' genetic structure, and geographic distribution models implementing factors other than climate will be important to elucidate some ecological and evolutionary aspects of the distribution of H. caingua in South America.

scholarly journals New locality records of Rhagomys longilingua Luna & Patterson, 2003 (Rodentia: Cricetidae) in Peru

Check List ◽  
2017 ◽  
Vol 13 (3) ◽  
pp. 2136 ◽  
Author(s):  
César E. Medina ◽  
Darwin R. Díaz ◽  
Kateryn Pino ◽  
Alexander Pari ◽  
Horacio Zeballos
Keyword(s):  
South America ◽  
Geographic Distribution ◽  
National Park ◽  
Potential Distribution ◽  
Distribution Range ◽  
Type Locality ◽  
Eastern Slope ◽  
Distribution Models ◽  
The Andes ◽  
Manu National Park

Rhagomys longilingua is one of the rarest sigmodontine rodents of South America, currently known from only 2 localities (4 individuals) in Peru and Bolivia. Here we report 3 additional localities in Peru, one of which extends the geographic distribution range of this species 613 km northeast from the type locality (Suecia, Manu National Park, Cusco department). Potential distribution models showed the presence of R. longilingua from Bolivia until Colombia along the eastern slope of the Andes.

scholarly journals Challenges and perspectives for species distribution modelling in the neotropics

2011 ◽  
Vol 8 (3) ◽  
pp. 324-326 ◽  
Author(s):  
Luciana H. Y. Kamino ◽  
João Renato Stehmann ◽  
Silvana Amaral ◽  
Paulo De Marco ◽  
Thiago F. Rangel ◽  
...  
Keyword(s):  
Species Distribution ◽  
State Of The Art ◽  
Good Practice ◽  
Species Distribution Modelling ◽  
Distribution Models ◽  
Related Field ◽  
Distribution Modelling ◽  
Field Surveys ◽  
Belo Horizonte ◽  
Species Occurrences

The workshop ‘ Species distribution models: applications, challenges and perspectives ’ held at Belo Horizonte (Brazil), 29–30 August 2011, aimed to review the state-of-the-art in species distribution modelling (SDM) in the neotropical realm. It brought together researchers in ecology, evolution, biogeography and conservation, with different backgrounds and research interests. The application of SDM in the megadiverse neotropics—where data on species occurrences are scarce—presents several challenges, involving acknowledging the limitations imposed by data quality, including surveys as an integral part of SDM studies, and designing the analyses in accordance with the question investigated. Specific solutions were discussed, and a code of good practice in SDM studies and related field surveys was drafted.

scholarly journals New distribution records of the critically endangered frog Telmatobufo bullocki Schmidt, 1952 (Anura: Calyptocephalellidae) in southern Chile

Check List ◽  
2014 ◽  
Vol 10 (2) ◽  
pp. 428
Author(s):  
Felipe E. Rabanal ◽  
Virginia Moreno-Puig
Keyword(s):  
Geographic Distribution ◽  
Threatened Species ◽  
Critically Endangered ◽  
Mountain Range ◽  
Southern Chile ◽  
Field Surveys ◽  
Private Forestry ◽  
New Localities ◽  
Central South ◽  
New Distribution

In an effort to assess the current geographic distribution of the critically endangered frog Telmatobufo bullocki Schmidt, 1952, we conducted several field surveys in the Nahuelbuta mountain range in central-south Chile. We surveyed historic localities cited in the literature, and potential new localities in private forestry areas. Telmatobufo bullocki was found in six localities: four historic and two new. The discovery of new populations and the confirmation of the persistence of the species in at least four historic localities open new perspectives for the conservation of this threatened species.

scholarly journals First record of Tigrisoma fasciatum (Such, 1825) (Aves: Ardeidae) in the State of Amapá, Brazil and updated species distribution in Central and South America

2013 ◽  
Vol 13 (4) ◽  
pp. 385-390
Author(s):  
Lia Nahomi Kajiki ◽  
Cintia Massumi Togura ◽  
Fernanda Michalski
Keyword(s):  
South America ◽  
Species Distribution ◽  
Scientific Literature ◽  
Large Range ◽  
Brazilian Amazon ◽  
First Record ◽  
National Forest ◽  
Field Surveys ◽  
Online Databases ◽  
Distribution And Ecology

The Fasciated Tiger-heron (Tigrisoma fasciatum) is considered endangered in Brazil and Argentina. Although this species has a large range in Central and South America, its records are scattered and scarce. We used a combination of searches in the scientific literature and new field records to provide an updated distributional range of this species. Searches for records and photos of T. fasciatum were conducted using online databases. We also conducted field surveys along the margins of the Araguari and Falsino rivers, in the National Forest of Amapá, a sustainable protected area in the eastern Brazilian Amazon. Our literature review provided a total of 25 new distributional records of T. fasciatum. During our river based surveys we recorded one individual of T. fasciatum, which represents an extension of 499 km from the nearest previously documented occurrence. We present these findings in an up to date distributional map of T. fasciatum and highlight the need of further studies in order to better understand the species distribution and ecology.

scholarly journals Dissecting maize diversity in lowland South America: genetic structure and geographic distribution models

2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Mariana Bracco ◽  
Jimena Cascales ◽  
Julián Cámara Hernández ◽  
Lidia Poggio ◽  
Alexandra M. Gottlieb ◽  
...  
Keyword(s):  
Genetic Structure ◽  
South America ◽  
Geographic Distribution ◽  
Distribution Models ◽  
Maize Diversity

Host range and geographic distribution of pangola stunt virus and its planthopper vectors in Australia

1991 ◽  
Vol 42 (5) ◽  
pp. 819 ◽  
Author(s):  
DS Teakle ◽  
S Hicks ◽  
M Karan ◽  
JB Hacker ◽  
RS Greber ◽  
...  
Keyword(s):  
Host Range ◽  
Geographic Distribution ◽  
Field Surveys ◽  
Natural Hosts ◽  
Digitaria Eriantha

Natural hosts of pangola stunt virus (PaSV) in eastern Austalia were found to be Digitaria eriantha ssp. pentzii (pangola grass), D. ciliaris (summer grass) and D. milanjiana. Transmission tests using the planthopper vector, Sogatella kolophon, showed that D. polevansii, D. eriantha ssp. eriantha, D. swazilandensis and the Australian native, D. divaricatissima were also susceptible, whereas D. didactyla was not infected. In tests of 22 species in 15 other genera, only Urochloa panicoides (annual urochloa grass) was infected. In field surveys, PaSV was commonly found in pangola grass in near-coastal districts from Grafton, N.S.W. to Walkamin, N. Qld and was detected up to 100 km inland at Toowoomba. The virus was not detected in either pangola grass or D. eriantha ssp. eriantha in subhumid areas west of Toowoomba or at Gayndah. Sogatella kolophon was collected from Bamaga, N. Qld to Murwillumbah, N.S.W. It was commonly associated with both PaSV-infected and PaSV-free digitgrass pastures. It is concluded that PaSV poses a threat to many digitgrasses in near-coastal districts of Qld and subtropical N.S.W., but so far is unknown in inland Australia.

scholarly journals Using species distribution modelling to determine opportunities for trophic rewilding under future scenarios of climate change

2018 ◽  
Vol 373 (1761) ◽  
pp. 20170446 ◽  
Author(s):  
Scott Jarvie ◽  
Jens-Christian Svenning
Keyword(s):  
Climate Change ◽  
Species Distribution ◽  
Species Distribution Modelling ◽  
Climatic Conditions ◽  
First Century ◽  
Distribution Models ◽  
Distribution Modelling ◽  
Major Barrier ◽  
Methodological Choices ◽  
Biodiversity And Ecosystem Function

Trophic rewilding, the (re)introduction of species to promote self-regulating biodiverse ecosystems, is a future-oriented approach to ecological restoration. In the twenty-first century and beyond, human-mediated climate change looms as a major threat to global biodiversity and ecosystem function. A critical aspect in planning trophic rewilding projects is the selection of suitable sites that match the needs of the focal species under both current and future climates. Species distribution models (SDMs) are currently the main tools to derive spatially explicit predictions of environmental suitability for species, but the extent of their adoption for trophic rewilding projects has been limited. Here, we provide an overview of applications of SDMs to trophic rewilding projects, outline methodological choices and issues, and provide a synthesis and outlook. We then predict the potential distribution of 17 large-bodied taxa proposed as trophic rewilding candidates and which represent different continents and habitats. We identified widespread climatic suitability for these species in the discussed (re)introduction regions under current climates. Climatic conditions generally remain suitable in the future, although some species will experience reduced suitability in parts of these regions. We conclude that climate change is not a major barrier to trophic rewilding as currently discussed in the literature.This article is part of the theme issue ‘Trophic rewilding: consequences for ecosystems under global change’.

scholarly journals New records of Ganoderma multiplicatum (Mont.) Pat. (Polyporales, Basidiomycota) from Colombia and its geographic distribution in South America

Check List ◽  
2016 ◽  
Vol 12 (4) ◽  
pp. 1948 ◽  
Author(s):  
Ana Cristina Bolaños ◽  
Vera Lúcia Ramos Bononi ◽  
Adriana De Mello Gugliotta
Keyword(s):  
South America ◽  
Geographic Distribution ◽  
New Records ◽  
Neotropical Region ◽  
Distribution Map ◽  
Tropical Regions ◽  
First Time

Ganoderma is a cosmopolitan genus of fungi with species distributed in temperate and tropical regions. Species of Ganoderma in living Leguminosae were observed in Park de la Salud in Pance, Cali, Colombia and we record G. multiplicatum for the first time from Colombia. A distribution map of this genus in the Neotropical region is presented. 

scholarly journals The ghost of climatic change in the geographic distribution of Tillandsia aeranthos (Bromeliaceae)

Rodriguésia ◽  
2020 ◽  
Vol 71 ◽  
Author(s):  
Elián Leandro Guerrero
Keyword(s):  
South America ◽  
Climatic Change ◽  
Geographic Distribution ◽  
Buenos Aires ◽  
New Records ◽  
Southern Limit ◽  
New Findings ◽  
Southward Shift ◽  
Possible Cause ◽  
Color Variants

Abstract The geographic distribution of Tillandsia aeranthos is updated with new records. Its southern limit is extended 200 kilometers in a zone previously studied by many botanists and naturalists, but also in poorly explored areas. For this reason, the possibility that the change in distribution is recent is postulated and discussed. The coincidence of this change with the southward shift in the isohyets and the decrease of winter frost frequency are highlighted as a possible cause of the advance to the south. In addition, two petal color variants of this species are first mentioned for Argentina. The new findings display that it is necessary to further explore some dry forests of eastern Buenos Aires and study the possible consequences of the climatic change in the biota of South America.

scholarly journals Evaluating ecological uniqueness over broad spatial extents using species distribution modelling

2021 ◽  
Author(s):  
Gabriel Dansereau ◽  
Pierre Legendre ◽  
Timothée Poisot
Keyword(s):  
North America ◽  
Species Distribution ◽  
Rare Species ◽  
Beta Diversity ◽  
Species Distribution Modelling ◽  
Distribution Models ◽  
Science Data ◽  
Distribution Modelling ◽  
Ecological Uniqueness ◽  
The Relationship

Aim: Local contributions to beta diversity (LCBD) can be used to identify sites with high ecological uniqueness and exceptional species composition within a region of interest. Yet, these indices are typically used on local or regional scales with relatively few sites, as they require information on complete community compositions difficult to acquire on larger scales. Here, we investigate how LCBD indices can be used to predict ecological uniqueness over broad spatial extents using species distribution modelling and citizen science data. Location: North America. Time period: 2000s. Major taxa studied: Parulidae. Methods: We used Bayesian additive regression trees (BARTs) to predict warbler species distributions in North America based on observations recorded in the eBird database. We then calculated LCBD indices for observed and predicted data and examined the site-wise difference using direct comparison, a spatial autocorrelation test, and generalized linear regression. We also investigated the relationship between LCBD values and species richness in different regions and at various spatial extents and the effect of the proportion of rare species on the relationship. Results: Our results showed that the relationship between richness and LCBD values varies according to the region and the spatial extent at which it is applied. It is also affected by the proportion of rare species in the community. Species distribution models provided highly correlated estimates with observed data, although spatially autocorrelated. Main conclusions: Sites identified as unique over broad spatial extents may vary according to the regional richness, total extent size, and the proportion of rare species. Species distribution modelling can be used to predict ecological uniqueness over broad spatial extents, which could help identify beta diversity hotspots and important targets for conservation purposes in unsampled locations.

Sign in / Sign up

Export Citation Format

Share Document