scholarly journals On the absence of the Green-tailed Trainbearer Lesbia nuna (Trochilidae) from Venezuela: an analysis based on environmental niche modelling

2017 ◽  
Vol 5 ◽  
pp. e22092 ◽  
Author(s):  
Paolo Ramoni Perazzi ◽  
Karl Schuchmann ◽  
Magdiel Ablan Bortone ◽  
Alejandra Soto Werschitz
Keyword(s):  
Environmental Niche ◽  
Niche Modelling

scholarly journals Climate variability impacts on diversification processes in a biodiversity hotspot: a phylogeography of ancient pseudoscorpions in south-western Australia

2019 ◽  
Vol 186 (4) ◽  
pp. 934-949 ◽  
Author(s):  
Danilo Harms ◽  
J Dale Roberts ◽  
Mark S Harvey
Keyword(s):  
Phylogenetic Analyses ◽  
Distribution Patterns ◽  
Biodiversity Hotspot ◽  
Molecular Dating ◽  
Environmental Niche ◽  
Ecological Niche Models ◽  
The South ◽  
Niche Modelling ◽  
South West ◽  
Western Division

Abstract The south-western division of Australia is the only biodiversity hotspot in Australia and is well-known for extreme levels of local endemism. Climate change has been identified as a key threat for flora and fauna, but very few data are presently available to evaluate its impact on invertebrate fauna. Here, we derive a molecular phylogeography for pseudoscorpions of the genus Pseudotyrannochthonius that in the south-west are restricted to regions with the highest rainfall. A dated molecular phylogeny derived from six gene fragments is used for biogeographic reconstruction analyses, spatial mapping, environmental niche-modelling, and to infer putative species. Phylogenetic analyses uncover nine clades with mostly allopatric distributions and often small linear ranges between 0.5 and 130 km. Molecular dating suggests that the origins of contemporary diversity fall into a period of warm/humid Palaeogene climates, but splits in the phylogeny coincide with major environmental shifts, such as significant global cooling during the Middle Miocene. By testing several models of historical biogeography available for the south-west, we determine that Pseudotyrannochthonius is an ancient relict lineage that principally follows a model of allopatric speciation in mesic zone refugia, although there are derivations from this model in that some species are older and distribution patterns more complex than expected. Ecological niche models indicate that drier and warmer future climates will lead to range contraction towards refugia of highest rainfall, probably mimicking past variations that have generated high diversity in these areas. Their conservation management will be crucial for preserving the unique biodiversity heritage of the south-west.

scholarly journals Understanding biogeographical patterns in the western Balkan Peninsula using environmental niche modelling and geostatistics in polymorphic Edraianthus tenuifolius

AoB Plants ◽  
2018 ◽  
Author(s):  
Peter Glasnović ◽  
Martina Temunović ◽  
Dmitar Lakušić ◽  
Tamara Rakić ◽  
Valentina Brečko Grubar ◽  
...  
Keyword(s):  
Balkan Peninsula ◽  
Environmental Niche ◽  
Niche Modelling

Niche conservatism predominates in adaptive radiation: comparing the diversification of Hawaiian arthropods using ecological niche modelling

2019 ◽  
Vol 127 (2) ◽  
pp. 479-492 ◽  
Author(s):  
Anna E Hiller ◽  
Michelle S Koo ◽  
Kari R Goodman ◽  
Kerry L Shaw ◽  
Patrick M O’Grady ◽  
...  
Keyword(s):  
Adaptive Radiation ◽  
Phylogenetic Signal ◽  
Niche Overlap ◽  
Oceanic Islands ◽  
Niche Conservatism ◽  
Environmental Niche ◽  
Niche Modelling ◽  
Closely Related Species ◽  
Species Comparisons

Abstract The role of the environmental niche in fostering ecological divergence during adaptive radiation remains enigmatic. In this study, we examine the interplay between environmental niche divergence and conservatism in the context of adaptive radiation on oceanic islands, by characterizing the niche breadth of four Hawaiian arthropod radiations: Tetragnatha spiders (Tetragnathidae Latreille, 1804), Laupala crickets (Gryllidae Otte, 1994), a clade of Drosophila flies (Drosophilidae Fallén, 1823) and Nesosydne planthoppers (Delphacidae Kirkaldy, 1907). We assembled occurrence datasets for the four lineages, modelled their distributions and quantified niche overlap. All four groups occupy the islands in distinct ways, highlighting the contrasting axes of diversification for different lineages. Laupala and Nesosydne have opposite environmental niche extents (broad and narrow, respectively), whereas Tetragnatha and Drosophila share relatively intermediate tolerances. Temperature constrains the distributions of all four radiations. Tests of phylogenetic signal suggest that, for Tetragnatha and Drosophila, closely related species exhibit similar environmental niches; thus, diversification is associated with niche conservatism. Sister species comparisons also show that populations often retain similar environmental tolerances, although exceptions do occur. Results imply that diversification does not occur through ecological speciation; instead, adaptive radiation occurs largely within a single environment.

scholarly journals Using environmental niche modelling to investigate abiotic predictors of crocodilian attacks on people

Oryx ◽  
2020 ◽  
Vol 54 (5) ◽  
pp. 639-647
Author(s):  
George Powell ◽  
Thomas M. M. Versluys ◽  
Jessica J. Williams ◽  
Sonia Tiedt ◽  
Simon Pooley
Keyword(s):  
Human Life ◽  
Seasonal Pattern ◽  
Alligator Mississippiensis ◽  
Effect Of Temperature ◽  
Environmental Niche ◽  
Niche Modelling ◽  
Human Safety ◽  
Hunting Behaviour ◽  
The Tropics ◽  
The Relationship

AbstractCrocodilians are distributed widely through the tropics and subtropics, and several species pose a substantial threat to human life. This has important implications for human safety and crocodilian conservation. Understanding the drivers of crocodilian attacks on people could help minimize future attacks and inform conflict management. Crocodilian attacks follow a seasonal pattern in many regions, but there has been limited analysis of the relationship between attack occurrence and fine-scale contemporaneous environmental conditions. We use methods from environmental niche modelling to explore the relationships between attacks on people and abiotic predictors at a daily temporal resolution for the Nile crocodile Crocodylus niloticus in South Africa and Eswatini (formerly Swaziland), and the American alligator Alligator mississippiensis in Florida, USA. Our results indicate that ambient daily temperature is the most important abiotic temporal predictor of attack occurrence for both species, with attack likelihood increasing markedly when mean daily temperatures exceed 18 °C and peaking at 28 °C. It is likely that this relationship is explained partially by human propensity to spend time in and around water in warmer weather but also by the effect of temperature on crocodilian hunting behaviour and physiology, especially the ability to digest food. We discuss the potential of our findings to contribute to the management of crocodilians, with benefits for both human safety and conservation, and the application of environmental niche modelling for understanding human–wildlife conflicts involving both ectotherms and endotherms.

scholarly journals Environmental Niche Modelling of Phlebotomine Sand Flies and Cutaneous Leishmaniasis Identifies Lutzomyia intermedia as the Main Vector Species in Southeastern Brazil

PLoS ONE ◽  
2016 ◽  
Vol 11 (10) ◽  
pp. e0164580 ◽  
Author(s):  
Viviane Coutinho Meneguzzi ◽  
Claudiney Biral dos Santos ◽  
Gustavo Rocha Leite ◽  
Blima Fux ◽  
Aloísio Falqueto
Keyword(s):  
Cutaneous Leishmaniasis ◽  
Southeastern Brazil ◽  
Sand Flies ◽  
Environmental Niche ◽  
Vector Species ◽  
Niche Modelling ◽  
Phlebotomine Sand Flies

Environmental niche modelling fails to predict Last Glacial Maximum refugia: niche shifts, microrefugia or incorrect palaeoclimate estimates?

2014 ◽  
Vol 23 (11) ◽  
pp. 1186-1197 ◽  
Author(s):  
James R. P. Worth ◽  
Grant J. Williamson ◽  
Shota Sakaguchi ◽  
Paul G. Nevill ◽  
Greg J. Jordan
Keyword(s):  
Last Glacial Maximum ◽  
Glacial Maximum ◽  
Environmental Niche ◽  
Niche Modelling ◽  
Last Glacial ◽  
Niche Shifts

scholarly journals Environmental Niche Modelling with Desktop GARP for Wild Origanum vulgare L . (Lamiaceae) in Armenia

2015 ◽  
Vol 3 ◽  
pp. 7
Author(s):  
Armine Abrahamyan ◽  
Arvids Barsevskis
Keyword(s):  
Climate Change ◽  
Global Climate ◽  
Environmental Niche ◽  
Origanum Vulgare ◽  
Niche Modelling ◽  
Realized Niche ◽  
Actual Distribution ◽  
Central Regions ◽  
The Republic ◽  
Occurrence Records

Predicting species’ distributions has became one of the significant components of conservation biology in recent years. During the study, GARP (genetic algorithm) has been identified the key modelling technique for determining Origanum vulgare L. (Oregano, Lamiaceae) environmental niche in the Republic of Armenia. For over three consecutive years, from 2010-2013 it has been created relevant environmental layers through ESRI ArcGIS programs to be used with the plant actual distribution (occurrence records) as input data of GARP. In the result of the study, it has been produced the fundamental and realized niche and predictive habitat distribution of O. vulgare L. with Bitmap under the global climate change. Produced Bitmap illustrates that Oregano distributions would decrease mostly in the central regions due to environmental deterioration and climate change. This research could provide significant data for future conservation planning of wild Oregano in the Republic of Armenia.

scholarly journals Environmental niche modelling as tool for pest risk assessment

2021 ◽  
Vol 104 (1) ◽  
pp. 40-52
Author(s):  
A. N. Afonin* ◽  
Yu. Yu. Kulakova ◽  
Yu. A. Fedorova
Keyword(s):  
Risk Assessment ◽  
Russian Federation ◽  
Ecological Niche Modeling ◽  
Environmental Niche ◽  
Niche Modelling ◽  
Ecological Requirements ◽  
Pest Risk Assessment ◽  
Quarantine Species ◽  
The Russian Federation ◽  
Pest Risk

The article reviews the concept and technology of pest risk assessment for the spread of quarantine species based on ecological and geographical analysis and ecological niche modeling. Using a quarantine species Ipomoea hederacea (L.) Jacq. as an example, we calculated the ecological requirements of the species. The main ecological factors limiting the spread of I. hederacea were determined and the ecological amplitudes of the species in relation to each factor limiting its distribution were quantitatively estimated. We identified ecologically suitable habitats and compiled a map of the ecological-geographical niche of the species using specially created environmental maps based on the obtained data of the ecological limits of the species. Using the map of the ecological-geographical niche, the I. hederacea distribution risk in the regions of the Russian Federation was estimated. Similar maps can be used for basis of quantitative as well as targeted risk assessment of penetration and establishment of harmful organisms. Obtained information will be useful to compile lists of quarantine species, estimate the potential areas of geographic distribution of pests into Russian Federation, and make decisions for introduction of effective phytosanitary measures to prevent the penetration of these invasive organisms. It can also be used as the basis for organizing and conducting phytosanitary monitoring in the Russian Federation.

scholarly journals Adapting to extremes: reconstructing niche evolution in Australian Acacia over time and space

2021 ◽  
Author(s):  
Xia Hua ◽  
Marcel Cardillo ◽  
Lindell Bromham
Keyword(s):  
Phylogenetic Reconstruction ◽  
Environmental Niche ◽  
Niche Evolution ◽  
Spatial And Temporal Patterns ◽  
Niche Modelling ◽  
Statistical Framework ◽  
Phylogenetic Studies ◽  
History Of ◽  
Key Aspects ◽  
Underlying Processes

Macroevolutionary analysis is increasingly being used to study biodiversity responses to climate change, for example by using phylogenetic node ages to infer periods of diversification, or phylogenetic reconstruction of traits to infer adaptation to particular stresses. Here we apply a new macroevolutionary method to investigate the responses of a diverse plant genus, Acacia, to increasing aridity and salinity in Australia from the Miocene to the present. The Niche Evolution Model (NEMo) combines environmental niche modelling with phylogenetic comparative methods in a single statistical framework, to estimate current environmental tolerances, reconstruct the history of niche evolution and infer rates of change in key aspects of environmental tolerance. Using a large database of Acacia occurrence records and presence-absence survey sites, we find that both spatial and temporal patterns in niche evolution of Acacia are consistent with the aridification history of Australia and suggest high niche lability along both axes, which has allowed Acacia to quickly exploit new niches created during the aridification of the continent, and resulting in their current dominance of many habitats across Australia. This study demonstrates that phylogenetic studies of niche evolution can move beyond application of simple trait-based models, allowing the underlying processes of speciation, adaptation and dispersal to be explicitly modelled in a macroecological and macroevolutionary context.

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