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15 results for “Hengduan Mountain Region”
FIGURE 4 in Isoetes shangrilaensis, a new species of Isoetes from Hengduan mountain region of Shangri-la, Yunnan
FIGURE 4. Phylogenetic tree of the concatenated sequences of nrITS, atpB-rbcL, trnS-rps4, and trnS-trnG for Isoetes (posterior probability / bootstrap value).
FIGURE 3 in Isoetes shangrilaensis, a new species of Isoetes from Hengduan mountain region of Shangri-la, Yunnan
FIGURE 3. Spore morphology from an individual of population ZD1 of Isoetes shangrilaensis. A–D: Megaspore. A, polar view of proximal surface showing laevigate with some scurfy scales. B, equaturial view of proximal showing equatorial and radial ridges higher, wider than with I. hypsophila. C, distal surface showing surface low, sparsely tuberculate to rugulate. D, detail of the distal surface showing boldly, low-rugulate with dense coverage of small fibrils. E–F: Microspores. E, proximal surface showing coarsely low echinate to cristate surface with occasional filamentous structures. F, distal surface. Scale bars: A, C, 200μm; B, 100μm; D, 50μm; E, F, 10μm
FIGURE 2 in Isoetes shangrilaensis, a new species of Isoetes from Hengduan mountain region of Shangri-la, Yunnan
FIGURE 2. Spore morphology from an individual of population GH of Isoetes hypsophila. A–D: Megaspore. A, polar view of proximal surface showing laevigate with some scurfy scales. B, equatorial view of proximal showing equatorial and radial ridges smooth, narrow and of even height and width. C, distal view showing laevigate surface. D, details of the distal surface showing dense coverage of very small fibrils. E–F: Microspore. E, proximal view showing baculate surface densely covered by low, thick tubercules, proximal ridge rugulate with a semihemispherical swelling perpendicular to it. F, distal view showing surface bacculate to rugulate. Scale bars: A, B, C, 200μm; D, 50μm; E-F, 10μm.
FIGURE 1 in Isoetes shangrilaensis, a new species of Isoetes from Hengduan mountain region of Shangri-la, Yunnan
FIGURE 1. Box plot of megaspores and microspores sizes of two populations, ZD1 from Isoetes shangrilaensis and GH from Isoetes hypsophila.
FIGURE 5. Saussurea xiaojinensis. A. Habit. B. Capitulum. C. Achene and pappus. D. Floret. E–H in Five new species of Saussurea (Asteraceae, Cardueae) from the Hengduan Mountains region, southwestern China
FIGURE 5. Saussurea xiaojinensis. A. Habit. B. Capitulum. C. Achene and pappus. D. Floret. E–H. Phyllaries (from outer to inner series). All from Y.S. Chen & Z.H. Wang 9169 (PE). Illustration by Ms. P. Liu.
FIGURE 4. Saussurea qamdoensis. A. Habit. B. Achene. C. Inner pappus. D. Florets with pappi and achenes. E in Five new species of Saussurea (Asteraceae, Cardueae) from the Hengduan Mountains region, southwestern China
FIGURE 4. Saussurea qamdoensis. A. Habit. B. Achene. C. Inner pappus. D. Florets with pappi and achenes. E. Phyllaries (from left to right, outer to inner series). All from Kham Exped. 10-1200 (PE). Illustration by Ms. P. Liu.
FIGURE 3. Saussurea pseudorockii. A. Habit. B. Floret, with the pappus removed. C. Inner pappus. D. Outer pappus. E. Style branches. F. Leaf section. G. Floret with pappus. H in Five new species of Saussurea (Asteraceae, Cardueae) from the Hengduan Mountains region, southwestern China
FIGURE 3. Saussurea pseudorockii. A. Habit. B. Floret, with the pappus removed. C. Inner pappus. D. Outer pappus. E. Style branches. F. Leaf section. G. Floret with pappus. H. Phyllaries (from left to right, outer to inner series). I. Anther. All from Y.S. Chen 9730 (PE). Illustration by Mr. Y.X. Zhu.
FIGURE 2. Saussurea liangshanensis. A. Habit. B. Achene. C. Pappus. D. Corolla. E–J in Five new species of Saussurea (Asteraceae, Cardueae) from the Hengduan Mountains region, southwestern China
FIGURE 2. Saussurea liangshanensis. A. Habit. B. Achene. C. Pappus. D. Corolla. E–J. Phyllaries (from inner to outer series). All from Y.S. Chen 7547 (PE). Illustration by Ms. P. Liu.
FIGURE 1. Saussurea fuscipappa. A. Habit. B in Five new species of Saussurea (Asteraceae, Cardueae) from the Hengduan Mountains region, southwestern China
FIGURE 1. Saussurea fuscipappa. A. Habit. B. Phyllaries (from left to right: outer to inner series). C. Style branches. D. Floret, with pappus removed. E. Inner pappus. F. Outer pappus. G. Adaxial leaf surface. H. Abaxial leaf surface. I. floret. J. Anther. All from Y.S. Chen & Y.C. Bi 11-191 (PE). Illustration by Mr. Y.X. Zhu.
Supplementary material 1 from: Liu S, Hou M, Rao D, Ananjeva NB (2022) Three new species of Diploderma Hallowell, 1861 (Squamata, Agamidae) from the Hengduan Mountain Region, south-western China. ZooKeys 1131: 1-30. https://doi.org/10.3897/zookeys.1131.86644
Uncorrected genetic pairwise distances (p-distances) (%) between species based on the mitochondrial ND2 gene sequences
FIGURE 7 in Five new species of Saussurea (Asteraceae, Cardueae) from the Hengduan Mountains region, southwestern China
FIGURE 7. Saussurea liangshanensis (A, B) and S. qamdoensis (C, D) in the wild.
FIGURE 6 in Five new species of Saussurea (Asteraceae, Cardueae) from the Hengduan Mountains region, southwestern China
FIGURE 6. Saussurea fuscipappa (A) and S. pseudorockii (B) in the wild.
FIGURE 8. Saussurea xiaojinensis. A. Habitat. B in Five new species of Saussurea (Asteraceae, Cardueae) from the Hengduan Mountains region, southwestern China
FIGURE 8. Saussurea xiaojinensis. A. Habitat. B. Living plant.
Data from: Upward elevation and northwest range shifts for alpine Meconopsis species in the Himalaya-Hengduan Mountains region
Climate change may impact the distribution of species by shifting their ranges to higher elevations or higher latitudes. The impacts on alpine plant species may be particularly profound due to a potential lack of availability of future suitable habitat. To identify how alpine species have responded to climate change during the past century as well as to predict how they may react to possible global climate change scenarios in the future, we investigate the climatic responses of seven species of Meconopsis, a representative genus endemic in the alpine meadow and subnival region of the Himalaya–Hengduan Mountains. We analyzed past elevational shifts, as well as projected shifts in longitude, latitude, elevation, and range size using historical specimen records and species distribution modeling under optimistic (RCP 4.5) and pessimistic (RCP 8.5) scenarios across three general circulation models for 2070. Our results indicate that across all seven species, there has been an upward shift in mean elevation of 302.3 m between the pre‐1970s (1922–1969) and the post‐1970s (1970–2016). The model predictions suggest that the future suitable climate space will continue to shift upwards in elevation (as well as northwards and westwards) by 2070. While for most of the analyzed species, the area of suitable climate space is predicted to expand under the optimistic emission scenario, the area contracts, or, at best, shows little change under the pessimistic scenario. Species such as M. punicea, which already occupy high latitudes, are consistently predicted to experience a contraction of suitable climate space across all the models by 2070 and may consequently deserve particular attention by conservation strategies. Collectively, our results suggest that the alpine high‐latitude species analyzed here have already been significantly impacted by climate change and that these trends may continue over the coming decades.
Data from: Upward elevation and northwest range shifts for alpine Meconopsis species in the Himalaya-Hengduan Mountains region
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