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1,473 results for “geographical distribution”
FIGURES 6 7 in Redescription, shell variability and geographic distribution of Plagiodontes dentatus (Wood, 1828) (Gastropoda: Orthalicidae: Odontostominae) from Uruguay and Argentina
FIGURES 6 7. SEM photographs of the teleoconch sculpture near the aperture lip. 6, Plagiodontes dentatus; 7, P. multiplicatus.
FIGURES 14 16 in Redescription, shell variability and geographic distribution of Plagiodontes dentatus (Wood, 1828) (Gastropoda: Orthalicidae: Odontostominae) from Uruguay and Argentina
FIGURES 14 16. SEM photographs of the apertural teeth in Plagiodontes spp. 14, P. dentatus; 15, P. multiplicatus (arrow indicates the presence of a denticle on the columellar tooth); 16, P. patagonicus.
Geographic distribution change and climatic niche change of Odonates in Great Britain
<p>Species are largely thought to maintain broadly static niches over time, an assumption underpinning much theoretical ecology including the implementation of ecological models to project species' current and future distributions. Here, we assess niche conservatism in odonates in Great Britain over the past six decades by simultaneously quantifying changes in species geographic distribution and evaluating temporal trends in species realised climatic niche.</p>
Data and R code used in: Plant geographic distribution influences chemical defenses in native and introduced Plantago lanceolata populations
<p>Plants growing outside their native range may be confronted by new regimes of herbivory, but how this affects plant chemical defense profiles has rarely been studied. Using <em>Plantago lanceolata</em> as a model species, we investigated whether introduced populations show significant differences from native populations in several growth and chemical defense traits. <em>Plantago lanceolata </em>(ribwort plantain) is an herbaceous plant species native to Europe and Western Asia that has been introduced to numerous countries worldwide. We sampled seeds from nine native and ten introduced populations that covered a broad geographic and environmental range and performed a common garden experiment in a greenhouse, in which we infested half of the plants in each population with caterpillars of the generalist herbivore <em>Spodoptera littoralis</em>. We then measured size-related and resource-allocation traits as well as the levels of constitutive and induced chemical defense compounds in roots and shoots of <em>P. lanceolata</em>. When we considered the environmental characteristics of the site of origin, our results revealed that populations from introduced ranges were characterized by an increase of chemical defense compounds without compromising plant biomass. The concentrations of iridoid glycosides and verbascoside, the major anti-herbivore defense compounds of <em>P. lanceolata</em>,<em> </em>were higher in introduced populations than in native populations. In addition, introduced populations exhibited greater rates of herbivore-induced volatile organic compound emission and diversity, and similar chemical diversity based on untargeted analyses of leaf methanol extracts. In general, the geographic origin of the populations had a significant influence on morphological and chemical plant traits, suggesting that <em>P. lanceolata</em> populations are not only adapted to different environments in their native range but also in their introduced range.</p>
Data from: Geographic distribution of terpenoid chemotypes in Tanacetum vulgare mediates tansy aphid occurrence but not abundance
<p>Intraspecific variation of specialized metabolites in plants, such as terpenoids, are used to determine chemotypes. Tansy (<em>Tanacetum vulgare</em> L.) exhibits diverse terpenoid profiles that affect insect communities. However, it is not fully known whether patterns of their chemical composition and associated insects vary beyond the community scale. Here, we investigated the geographic distribution of mono- and sesquiterpenoid chemotypes in tansy leaves and their relationships with specific insect communities across Germany. We sampled tansy leaves from ten plants with and five plants without aphids in each of 26 sites along a north-south and west-east transect in Germany. Hexane-extracted metabolites from leaf tissues were analyzed by gas chromatography-mass spectrometry (GC-MS). Plant morphological traits, aphid occurrence and abundance, and occurrence of ants were recorded locally. The effect of plant chemotype, plant morphological parameters, and abiotic site parameters such as soil types, temperature and precipitation on insect occurrences were analyzed. Plants clustered into four monoterpenoid and four sesquiterpenoid chemotype classes. Monoterpene classes differed in their latitudinal distribution, whereas sesquiterpenes were more evenly distributed across the transect. Aphid and ant occurrence was influenced by monoterpenoids. Plants of monoterpenoid class 1 were colonized by aphids and ants significantly more often than expected by chance, whereas in other classes there were no significant differences. Aphid abundance was affected by soil type, and average annual temperature positively correlated with the occurrence of ants. We found significant geographic patterns in the distribution of tansy chemodiversity and show that monoterpenoids affect aphid and ant occurrence, while the soil type can influence aphid abundance. We show that geographic variation in plant chemistry influences insect community assembly on tansy plants.</p>
Fig. 1 in Constant fluctuating asymmetry but not directional asymmetry along the geographic distribution of Drosophila antonietae (Diptera, Drosophilidae)
Fig. 1. Locations of the sampled populations of Drosophila antonietae. Serrana (21◦ 14Ɩ S, 47◦ 34Ɩ W), Itirapina (22◦16Ɩ S, 47◦48Ɩ W), Guarapuava (25◦17Ɩ S, 51◦53Ɩ W), Cantagalo (25◦25Ɩ S, 52◦04Ɩ W), Santiago (29◦ 23Ɩ S, 54◦44Ɩ W).
F I G U R E 6 in Current and future potential geographical distribution of Bactericera cockerelli: an invasive pest of increasing global importance
F I G U R E 6 Predicted future climatic suitability for tomato potato psyllid (TPP; Bactericera cockerelli) in (a) its native range in North America, and (b) its invasive regions in Australia under a future climate change scenario predicted to the year 2090 in CLIMEX using the general circular model (GCM) CSIRO Mark 3.0, run with the A1B emissions scenario the known global distributions denoted by green colour dots.
F I G U R E 5 in Current and future potential geographical distribution of Bactericera cockerelli: an invasive pest of increasing global importance
F I G U R E 5 Predicted global climatic suitability for tomato potato psyllid (TPP; Bactericera cockerelli) under a future climate change scenario predicted to the year 2090 in CLIMEX using the general circular model (GCM) CSIRO Mark 3.0, run with the A1B emissions scenario.
F I G U R E 2 in Current and future potential geographical distribution of Bactericera cockerelli: an invasive pest of increasing global importance
F I G U R E 2 Predicted global climatic suitability for tomato potato psyllid (TPP; Bactericera cockerelli) under current climatic conditions in its native region in North America. The known global distributions are denoted by green colour dots.
F I G U R E 4 in Current and future potential geographical distribution of Bactericera cockerelli: an invasive pest of increasing global importance
F I G U R E 4 Predicted climatic suitability for tomato potato psyllid (TPP; Bactericera cockerelli) under current climatic conditions in New Zealand under current climatic conditions. The known global distributions are denoted by green colour dots.
F I G U R E 1 in Current and future potential geographical distribution of Bactericera cockerelli: an invasive pest of increasing global importance
F I G U R E 1 Predicted global climatic suitability (ecoclimatic index) for tomato potato psyllid (TPP; Bactericera cockerelli under current climatic conditions using the adjusted parameters given in Table 1 under (a) natural rainfall and (b) as composite of natural rainfall and irrigation based on areas identified by Siebert et al. (2013). The known global distributions are denoted by green colour dots.
F I G U R E 3 in Current and future potential geographical distribution of Bactericera cockerelli: an invasive pest of increasing global importance
F I G U R E 3 Predicted climatic suitability for tomato potato psyllid (TPP; Bactericera cockerelli) under current climatic conditions in Australia current climatic conditions. The known global distributions are denoted by green colour dots.
F I G U R E 7 in Current and future potential geographical distribution of Bactericera cockerelli: an invasive pest of increasing global importance
F I G U R E 7 Predicted future climatic suitability for tomato potato psyllid (TPP; Bactericera cockerelli) in New Zealand under a future climate change scenario predicted to the year 2090 in CLIMEX using the general circular model (GCM) CSIRO Mark 3.0, run with the A1B emissions scenario. The known global distributions denoted by green colour dots.
Fig. 4 in Anteaters on the edge: giant and lesser anteaters (Myrmecophaga tridactyla and Tamandua tetradactyla) at their geographic distributional limits in Paraguay
Fig. 4. Capture success (%) of lesser anteater (Tamandua tetradactyla Linnaeus, 1758) and giant anteater (Myrmecophaga tridactyla Linnaeus, 1758) in the Humid Chaco Ecoregion in Paraguay using trap-cameras from November 2016 to March 2018 by forest types: W-RF, Riparian forests associated to wetlands; MXF, Mesoxerophytic semi-deciduous forests dominated by Schinopsis balansae; FSF, Floodable sub-humid forest islets.
Figs 2, 3 in Anteaters on the edge: giant and lesser anteaters (Myrmecophaga tridactyla and Tamandua tetradactyla) at their geographic distributional limits in Paraguay
Figs 2, 3. Photos taken by trap cameras in the Humid Chaco Ecoregion in Paraguay: 2) Giant anteater (Myrmecophaga tridactyla Linnaeus, 1758) on March 20th, 2017; 3) Lesser anteater (Tamandua tetradactyla Linnaeus, 1758) on November 28th, 2017.
Fig. 1 in Anteaters on the edge: giant and lesser anteaters (Myrmecophaga tridactyla and Tamandua tetradactyla) at their geographic distributional limits in Paraguay
Fig. 1. Location of the study area in the Humid Chaco Ecoregion in Paraguay (left) and camera-trap ubications from November 2016 to March 2018. The numbers of the amplified area (right) indicate the date and season in which the trap cameras were placed in the different forests types (see Tab. I).
Fig. 5 in Anteaters on the edge: giant and lesser anteaters (Myrmecophaga tridactyla and Tamandua tetradactyla) at their geographic distributional limits in Paraguay
Fig. 5. Records (%) by hour of the day of giant anteater (Myrmecophaga tridactyla Linnaeus, 1758) and lesser anteater (Tamandua tetradactyla Linnaeus, 1758) in the Humid Chaco Ecoregion in Paraguay using trap-cameras from November 2016 to March 2018.
Fig. 2 in On The Geographic Distribution Of Nemognatha Plaumanni Borchmann, 1942 (Coleoptera: Meloidae): New Records From Venezuela, With A 4500 Km Range Extension
Fig. 2. Latero-dorsalvieWofaspecimenof Nemognathaplaumanni BorcHmann, 1942, from tHeCordilleradelaCostaintHeStateofAragua (Venezuela), locatedabout 4500 kmnortH
Fig. 5 in The Alternative Distribution Of Related Earthworms Aporrectodea Caliginosa And A. Trapezoides (Oligochaeta, Lumbricidae) In Ukraine As A Case Of Geographical Parthenogenesis
Fig. 5. Changes in the proportion of A. trapezoides in A. caliginosa s. l. sample sets depending on geographical longitude.
Fig. 3. A. caliginosa–A in The Alternative Distribution Of Related Earthworms Aporrectodea Caliginosa And A. Trapezoides (Oligochaeta, Lumbricidae) In Ukraine As A Case Of Geographical Parthenogenesis
Fig. 3. A. caliginosa–A. trapezoides specimens ratio in A. caliginosa s. l. sample sets. Black filling — A. caliginosa, cross-hatching — A. trapezoids.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.