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22 results for “Australian acacias”
Figure 3 in Phylogenetic measures of biodiversity and neo- and paleo-endemism in Australian Acacia
Figure 3 | CANAPE, a two-step procedure described in text. (a) Map of centres of endemism discovered. White cells contain no records; beige cells are not significant. The red values indicate grid cells that contain significantly lower RPE than expected given random sampling of the same number of species from a null tree, termed 'centres of neo-endemism'. The blue values indicate grid cells that contain significantly higher RPE than expected, termed 'centres of paleo-endemism'. The purple values indicate grid cells that are a mix of neo-endemism and paleo-endemism; the most highly significant of which (darker purple) are termed 'centres of superendemism'. (b) Bivariate plot showing the relationship between the numerator (y axis) and denominator (x axis) of RPE, applied following the two-step CANAPE procedure described in text, for comparison with a. The grey points in the background are results of the randomization, the beige points are actual values for grid cells that are not significant, the red points are actual values for grid cells that are interpreted as significantly dominated by neo-endemism, the blue points are actual values for grid cells that are interpreted as significantly dominated by paleo-endemism, and the purple points are actual values for grid cells significant for both the y-axis and x-axis variables separately, the most highly significant of which (darker purple) are termed 'centres of super-endemicity'.
Figure 2 in Phylogenetic measures of biodiversity and neo- and paleo-endemism in Australian Acacia
Figure 2 | Maps showing significance levels resulting from of a randomization test in Australian Acacia. White cells contain no records; beige cells are not significant. (a) PD: the red values indicate grid cells that contain significantly less PD than expected; the blue values indicate grid cells that contain significantly more PD than expected. (b) RPD: the red values indicate grid cells that contain significantly less RPD than expected; the species present in that cell are significantly more closely related than expected. The blue values indicate grid cells that contain significantly more RPD than expected; the species present in that cell are significantly more distantly related than expected. (c) Phylogenetic endemism (PE). The red values indicate grid cells that contain significantly less PE than expected; the blue values indicate grid cells that contain significantly more PE than expected. (d) Relative phylogenetic endemism (RPE). The red values indicate grid cells that contain significantly lower RPE than expected; the blue values indicate grid cells that contain significantly higher RPE than expected.
Chapter 29. Supplementary material. Remote sensing of invasive Australian Acacia species: State of the art and future perspectives
<p>This is online supplementary material for the Chapter "Remote sensing of invasive Australian Acacia species: State of the art and future perspectives" authored by A Große-Stoltenberg, I Lizarazo, G Brundu, VP Gonçalves, LP Osco, C Masemola, J Müllerová, C Werner, I Kotze, and J Oldeland, corresponding to Chapter 29 In: "Wattles: Australian Acacia species around the world". Eds: D.M. Richardson, J.J. Le Roux, and E. Marchante (CABI, UK, 2023).”</p>
FIGURES 1–5 in Host-shifts at family level in the Australian Acacia-thrips lineage (Thysanoptera Phlaeothripinae) with two new species
FIGURES 1–5. Brakothrips eucalypti sp. n. (1) head, pronotum and fore legs (arrow to po seta); (2) head; (3) antenna; (4) meso and metanotum, pelta and tergite II; (5) tergites V–VI.
Data from: A biogeographical regionalisation of Australian Acacia species
Aim: To develop a biogeographical regionalization of Australian Acacia species and to investigate their environmental correlates. Location: Australia. Methods: We used a previously published framework for delineating biogeographical regions. We calculated species turnover patterns of 1020 Australian Acacia species with distributions estimated from 171,758 georeferenced herbarium records aggregated to 100 km × 100 km cells (868 across Australia). An agglomerative cluster analysis using a matrix of pairwise Simpson's beta (βsim) dissimilarity values was applied. Eleven environmental variables at the same resolution as the aggregated herbarium records were used to explore the correlates of the βsim patterns using a non-metric multidimensional scaling (NMDS) analysis. We also used an ANOVA to test the significance of the environmental changes between each pair of biogeographical regions. Results: Five major Acacia biogeographical regions were proposed. These bioregions were broadly similar to the biomes of Australia. A new subdivision of the Eremaean biome was proposed for Acacia. The most influential environmental variables for the individual bioregions were: (1) temperature seasonality and topographic flatness for the south-western temperate bioregion; (2) precipitation during the coldest quarter of the year for the south-eastern temperate bioregion; (3) annual precipitation, annual mean temperature and precipitation seasonality for the monsoonal bioregion; and (4) percentage of sand in the top 30 cm of the soil, rock grain size, annual mean radiation and annual mean temperature for the Eremaean south and north regions. The NMDS analysis provided support for the observed biogeographical patterns. The statistical test showed a highly significant difference between the environments of the proposed bioregions. Climatic variables were consistent predictors across regions, whereas the influence of soils and topographic features varied among bioregions. Main conclusions: The major Acacia biogeographical regions correspond well to historical bioregionalizations, suggesting that the environmental drivers of diversification in Acacia are broadly similar to those that act on the flora as a whole. Climate seasonality combined with annual values and non-climatic factors provide support for the proposed biogeographical regionalization for Acacia.
Supplementary material 4 from: Magona N, Richardson DM, Le Roux JJ, Kritzinger-Klopper S, Wilson JRU (2018) Even well-studied groups of alien species might be poorly inventoried: Australian Acacia species in South Africa as a case study. NeoBiota 39: 1-29. https://doi.org/10.3897/neobiota.39.23135
Details of the forestry trial at Damara Farm, South Africa, that included many species of wattles not previously recorded from South Africa :
Supplementary material 3 from: Magona N, Richardson DM, Le Roux JJ, Kritzinger-Klopper S, Wilson JRU (2018) Even well-studied groups of alien species might be poorly inventoried: Australian Acacia species in South Africa as a case study. NeoBiota 39: 1-29. https://doi.org/10.3897/neobiota.39.23135
Records of naturalised populations of wattles as per the Southern African Plant Invaders Atlas (date accessed: January 2017) :
Supplementary material 1 from: Magona N, Richardson DM, Le Roux JJ, Kritzinger-Klopper S, Wilson JRU (2018) Even well-studied groups of alien species might be poorly inventoried: Australian Acacia species in South Africa as a case study. NeoBiota 39: 1-29. https://doi.org/10.3897/neobiota.39.23135
Molecular and morphological assessments for the identity of Australian Acacia species collected in South Africa: a) from naturalised populations not previously assessed; and b) from Damara Farm near Malmesbury in South Africa :
Supplementary material 2 from: Magona N, Richardson DM, Le Roux JJ, Kritzinger-Klopper S, Wilson JRU (2018) Even well-studied groups of alien species might be poorly inventoried: Australian Acacia species in South Africa as a case study. NeoBiota 39: 1-29. https://doi.org/10.3897/neobiota.39.23135
South African herbarium accession numbers for specimens that were not available online at http://newposa.sanbi.org as of 1 March 2018 :
FIGURES 16–23 in A new Australian species of invasive psyllid, Acizzia convector Burckhardt & Taylor, sp. nov. (Psylloidea: Psyllidae) associated with Acacia auriculiformis and A. mangium (Fabaceae)
FIGURES 16–23. Acizzia convector Burckhardt & Taylor, sp. nov., terminalia; 16, male terminalia, in profile; 17, posterior lobe of male proctiger; 18, paramere, inner face in profile; 19, distal portion of aedeagus, in profile; 20, female terminalia, in profile; 21, detail of circumanal ring; 22, hooked seta; 23, valvulae dorsalis and ventralis.
FIGURES 1–4. 1–3 in A new Australian species of invasive psyllid, Acizzia convector Burckhardt & Taylor, sp. nov. (Psylloidea: Psyllidae) associated with Acacia auriculiformis and A. mangium (Fabaceae)
FIGURES 1–4. 1–3, Acizzia convector Burckhardt & Taylor, sp. nov. (photographs by Lyle Buss, University of Florida); 1, male; 2, female; 3, immature.—4, Monoculture of Acacia auriculiformis trees 6 m high in Florida. This field was bare ground three years prior to taking this photograph (photograph by Scott D. Krueger, Florida Department of Agriculture and Consumer Services, Division of Plant Industry).
FIGURES 5–15 in A new Australian species of invasive psyllid, Acizzia convector Burckhardt & Taylor, sp. nov. (Psylloidea: Psyllidae) associated with Acacia auriculiformis and A. mangium (Fabaceae)
FIGURES 5–15. Acizzia convector Burckhardt & Taylor, sp. nov., adults; 5–8, habitus; 5, 6, lateral view; 7, 8, dorsal view; 5, 7, 12, 14, male; 6, 8, 13, female; 9, head, dorsal view; 10, vertex, right half; 11, metatibia, base with genual spine; 12–14, fore wing; 12, 13, wing pattern; 14 surface spinules; 15, details of surface spinules in apical third of cell r2.
Data from: A biogeographical regionalisation of Australian Acacia species
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Data from: Varying levels of clonality and ploidy create barriers to gene flow and challenges for conservation of an Australian arid-zone ecosystem engineer, Acacia loderi
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Data from: Importance of soil legacy effects and successful mutualistic interactions during Australian acacia invasions in nutrient poor environments
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Data from: Evidence for enemy release and increased seed production and size for two invasive Australian acacias
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Figure 4 in Phylogenetic measures of biodiversity and neo- and paleo-endemism in Australian Acacia
Figure 4 | Map (a) and cluster analysis (b) showing phylogenetic similarity relationships among centres of endemism for Australian Acacia. The cluster analysis used PD-dissimilarity and a phylo-jaccard metric with link-average linkage. Areas that cluster closely, indicating that they share many branches of their phylogenetic subtrees, are shown in the same colour and lettered for reference in the text. The number given by each letter is the proportion of grid cells in that cluster that are at least partly covered by currently protected areas; Eand F, the most poorly protected, are marked with an asterisk. The arrows on the map point to the grid cells in clusters Eand F that lie completely outside of protected areas and are thus of highest conservation concern.
Figure 1 in Phylogenetic measures of biodiversity and neo- and paleo-endemism in Australian Acacia
Figure 1 | Maps showing basic biodiversity patterns in Australian Acacia. (a) SR; (b) WE; (c) PD; and (d) PE.
Western Australian distribution of Acacia saligna
<p><span>Comments were presented on an article published in October 2020 in <i>Ecology and Evolution </i>("Predictive ability of a process-based versus a correlative species distribution model") by Higgins et al. This analyzed natural distributions of Australian eucalypt and acacia species and assessed the adventive range of selected species outside Australia.</span></p> <p><span>Unfortunately, inappropriate variables were used with the example MaxEnt species distribution model of <i>Acacia saligna</i> when applied outside Australia, so that large climatically suitable areas in the Mediterranean area of the Northern Hemisphere were not identified.</span></p> <p><span>To illustrate the problem, data from the natural distribution of <i>A. saligna</i> in Western Australia were accessed using the spatial portal of the Atlas of Living Australia (ALA, spatial.ala.org.au). The MaxEnt analysis method available in the ALA was used to show that large areas of the Mediterranean Basin are climatically suitable for <i>A. saligna</i>.</span></p>
Western Australian distribution of Acacia saligna
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