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41 results for “host plants range”
FIGURE 58. Orobanche kurdica. A. Plant. B. Flower, side view. C. Flower, front view. D. Calyx. E. Bract. F. Leaf. G. Open corolla and androecium. H. Gynoecium. I. Stigma. J in Holoparasitic Orobanchaceae (Cistanche, Diphelypaea, Orobanche, Phelipanche) in Armenia: distribution, habitats, host range and taxonomic problems
FIGURE 58. Orobanche kurdica. A. Plant. B. Flower, side view. C. Flower, front view. D. Calyx. E. Bract. F. Leaf. G. Open corolla and androecium. H. Gynoecium. I. Stigma. J. Anther. Illustration by Jolanta Urbanik.
FIGURE 53. Orobanche laxissima. A. Plant. B. Flower, side view. C. Flower, front view. D. Leaf. E. Bract. F. Calyx. G. Open corolla and androecium. H. Anther. I. Gynoecium. J in Holoparasitic Orobanchaceae (Cistanche, Diphelypaea, Orobanche, Phelipanche) in Armenia: distribution, habitats, host range and taxonomic problems
FIGURE 53. Orobanche laxissima. A. Plant. B. Flower, side view. C. Flower, front view. D. Leaf. E. Bract. F. Calyx. G. Open corolla and androecium. H. Anther. I. Gynoecium. J. Stigma. Illustration by Jolanta Urbanik.
FIGURE 48. Orobanche grossheimii. A. Plant. B. Flower, side view. C. Flower, front view. D. Calyx. E. Bract. F. Leaf. G. Open corolla and androecium. H. Gynoecium. I. Stigma. J in Holoparasitic Orobanchaceae (Cistanche, Diphelypaea, Orobanche, Phelipanche) in Armenia: distribution, habitats, host range and taxonomic problems
FIGURE 48. Orobanche grossheimii. A. Plant. B. Flower, side view. C. Flower, front view. D. Calyx. E. Bract. F. Leaf. G. Open corolla and androecium. H. Gynoecium. I. Stigma. J. Anther. Illustration by Jolanta Urbanik.
FIGURE 40. Orobanche schelkovnikovii. A. Plant. B. Flower, side view. C. Flower, front view. D. Calyx. E. Bract. F. Leaf. G. Open corolla and androecium. H. Gynoecium. I. Stigma. J in Holoparasitic Orobanchaceae (Cistanche, Diphelypaea, Orobanche, Phelipanche) in Armenia: distribution, habitats, host range and taxonomic problems
FIGURE 40. Orobanche schelkovnikovii. A. Plant. B. Flower, side view. C. Flower, front view. D. Calyx. E. Bract. F. Leaf. G. Open corolla and androecium. H. Gynoecium. I. Stigma. J. Anther. Illustration by Jolanta Urbanik.
Data from: The wheat curl mite Aceria tosichella (Acari: Eriophyoidea) is a complex of cryptic lineages with divergent host ranges: evidence from molecular and plant bioassay data
Aceria tosichella (the wheat curl mite, WCM) is a global pest of wheat and other cereals, causing losses by direct damage, as well as the transmission of plant viruses. The mite is considered to have an unusually wide host range for an eriophyoid species. The present study tested the commonly held assumption that WCM is a single, highly polyphagous species by assessing the host range of genetically distinct lineages of WCM occurring in Poland on different host plants. Genotyping was performed by analyzing nucleotide sequence data from fragments of the mitochondrial cytochrome c oxidase subunit I (COI) and the nuclear D2 region of 28S rDNA. Mean between-lineage distance estimated using COI data was found to be one order of magnitude greater than the within-clade lineage and, in some cases, comparable to distances between WCM lineages and a congeneric outgroup species. Host acceptance was tested by quantifying population growth for different WCM mitochondrial (mt)DNA lineages when transferred from source host plants to test plants. These experiments revealed significant differences in host colonization ability between mtDNA lineages, ranging from highly polyphagous to more host-specific. The present study reveals that WCM is composed of several discrete genetic lineages with divergent host-acceptance and specificity traits. Genetic variation for host acceptance within A. tosichella s.l. may act as a reproductive barrier between these lineages, most of which had narrow host ranges. Two lineages appear to have high pest potential on cereals, whereas several others appear to specialize on wild grass species. We conclude that WCM is not a homogeneous species comprising polyphagous panmictic populations rather it is a complex of genetically distinct lineages with variable host ranges and therefore variable pest potential.
Figure 5 in The host-plant range of twig-girdling beetles (Coleoptera: Cerambycidae: Lamiinae: Onciderini) of the Atlantic rainforest in southeastern Brazil
Figure 5. (A) Distribution of frequencies (%) of host-plant species girdled by Psyllotoxus griseocinctus from 2002 to 2006 in Serra do Japi. Asterisks indicate significant differences of the frequencies between girdled and available plant species (Bonferroni 95% confidence interval). (B) The preference for host plants was evaluated using the Manly's index. Values to the right of the dotted line indicate a preference for host plants; values to the left of the line indicate a preference for the alternate host.
Figure 2 in The host-plant range of twig-girdling beetles (Coleoptera: Cerambycidae: Lamiinae: Onciderini) of the Atlantic rainforest in southeastern Brazil
Figure 2. Host specificity of Onciderini beetles based on the percentage of girdled plant species from all taxa. (n = 35 native plant species). Different letters above bars indicate significant differences (Tukey-type multiple comparison test for the analysis of proportions, p <0.05)
Figure 1 in The host-plant range of twig-girdling beetles (Coleoptera: Cerambycidae: Lamiinae: Onciderini) of the Atlantic rainforest in southeastern Brazil
Figure 1. Distribution of frequencies (%) of native host-plant families used by Onciderini beetles from 2002 to 2006 along trails in Serra do Japi (see text for statistics).
Figure 3 in The host-plant range of twig-girdling beetles (Coleoptera: Cerambycidae: Lamiinae: Onciderini) of the Atlantic rainforest in southeastern Brazil
Figure 3. Percentage of host-plant families girdled by Onciderini beetles according to their degree of feeding specialization (n = 1436) (see text for statistics).
Figure 4 in The host-plant range of twig-girdling beetles (Coleoptera: Cerambycidae: Lamiinae: Onciderini) of the Atlantic rainforest in southeastern Brazil
Figure 4. Distribution of frequencies of both host-plant families (A) and species (C) girdled by Oncideres dejeani from 2002 to 2006 in Serra do Japi. Asterisks indicate significant differences of the frequencies between girdled and available plant species (Bonferroni 95% confidence interval). The preference for host-plant families (B) and species (D) was evaluated using the Manly's index. Values to the right of the dotted line indicate a preference for host plants; values to the left indicate a preference for an alternative host.
Figure 6 in The host-plant range of twig-girdling beetles (Coleoptera: Cerambycidae: Lamiinae: Onciderini) of the Atlantic rainforest in southeastern Brazil
Figure 6. (A) Distribution of frequencies (%) of host-plant species girdled by Oncideres saga from 2002 to 2006 in Serra do Japi. Asterisks indicate significant differences of the frequencies between girdled and available plant species (Bonferroni 95% confidence interval). (B) The preference for host plants was evaluated using the Manly's index. Values to the right of the dotted line indicate a preference for host plants; values to the left of the line indicate a preference for the alternate host.
Host plant adaptation during recent global range expansion in the monarch butterfly
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Data from: Shifts in diversification rates and host jump frequencies shaped the diversity of host range among Sclerotiniaceae fungal plant pathogens
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Data from: Implications of a temperature increase for host plant range: predictions for a butterfly
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Data from: Range-wide ecological niche comparisons of parasite, hosts and dispersers in a vector-borne plant parasite system
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Data from: The wheat curl mite Aceria tosichella (Acari: Eriophyoidea) is a complex of cryptic lineages with divergent host ranges: evidence from molecular and plant bioassay data
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Reduced host-plant specialization is associated with the rapid range expansion of a Mediterranean butterfly
<p><span><span><span><span><span><span><span><span><span><span><span><b>Aim: </b>Species ranges are highly dynamic, shifting in space and time as a result of complex ecological and evolutionary processes. Disentangling the relative contribution of both processes is challenging but of primary importance for forecasting species distributions under climate change. Here, we use the spectacular range expansion (ca. 1,000 km poleward shift within 10 years) of the butterfly <i>Pieris mannii </i>to unravel the factors underlying range dynamics, specifically the role of (i) niche evolution (changes in host-plant preference and acceptance) and (ii) ecological processes (climate change). </span></span></span></span></span></span></span></span></span></span></span></p> <p><span><span><span><span><span><span><span><span><span><span><span><b>Location: </b>Provence-Alpes-Côte d'Azur, France; North Rhine-Westphalia, Rhineland-Palatinate and Hesse, Germany.</span></span></span></span></span></span></span></span></span></span></span></p> <p><span><span><span><span><span><span><span><span><span><span><span><b>Taxon: </b>Insect and angiosperms. </span></span></span></span></span></span></span></span></span></span></span></p> <p><span><span><span><span><span><span><span><span><span><span><span><b>Methods: </b>We employed a combination of (i) common garden experiments, based on replicated populations from the species' historical and newly established range and host plant species representative for each distribution range, co-occurrence analyses and (ii) grid-based correlative species distribution modeling (SDM) using Maxent. </span></span></span></span></span></span></span></span></span></span></span></p> <p><span><span><span><span><span><span><span><span><span><span><span><b>Results:</b> We observed changes in oviposition preference, with females from the newly established populations showing reduced host-plant specialization and also an overall increased fecundity. These changes in behavior and life history may have enabled using a broader range of habitats and thus facilitated the recent range expansion. In contrast, our results indicate that the range expansion is unlikely to be directly caused by anthropogenic climate change, as the range was not constrained by climate in the first place.</span></span></span></span></span></span></span></span></span></span></span></p> <p><span><span><span><span><span><span><span><span><span><span><span><b>Main conclusions: </b>We conclude that evolution of a broader dietary niche rather than climate change is associated with the rapid range expansion and discuss potential indirect consequences of climate change as trigger for the genetic differences found. Our study thus illustrates the importance of species interactions in shaping species distributions and range shifts, and draws attention to indirect effects of climate change. Embracing this complexity is likely key to a better understanding of range dynamics. </span></span></span></span></span></span></span></span></span></span></span></p>
Data from: Spatial patterns of pathogenic and mutualistic fungi across the elevational range of a host plant
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Reduced host-plant specialization is associated with the rapid range expansion of a Mediterranean butterfly
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Data from: Pleistocene sea level fluctuation and host plant habitat requirement influenced the historical phylogeography of the invasive species Amphiareus obscuriceps (Hemiptera: Anthocoridae) in its native range
Background: On account of repeated exposure and submergence of the East China Sea (ECS) land bridge, sea level fluctuation played an important role in shaping the population structure of many temperate species across the ECS during the glacial period. The flower bug Amphiareus obscuriceps (Poppius, 1909) (Hemiptera: Anthocoridae) is an invasive species native to the Sino-Japanese Region (SJR) of East Asia. We tested the hypothesis of the ECS land bridge acting as a dispersal corridor or filter for A. obscuriceps during the glacial period. Specifically, we tested whether and the extent to which dispersal ability and host plant habitat requirement influenced the genetic structure of A. obscuriceps during the exposure of the ECS land bridge. Results: Phylogenetic and network analyses indicated that A. obscuriceps is composed of two major lineages, i.e., China and Japan. Divergence time on both sides of the ECS was estimated to be approximately 1.07 (0.79-1.32) Ma, which was about the same period that the sea level increased. No significant Isolation by Distance (IBD) relationship was found between Фst and Euclidean distances in the Mantel tests, which is consistent with the hypothesis that this species has a good dispersal ability. Our Last Glacial Maximum (LGM) niche modeling of plants that constitute preferred habitats for A. obscuriceps exhibited a similar habitat gap on the exposed ECS continental shelf between China and Japan, but showed a continuous distribution across the Taiwan Strait. Conclusion: Our results suggest that ecological properties (habitat requirement and dispersal ability), together with sea level fluctuation during the Pleistocene across the ECS, have shaped the genetic structure and demographic history of A. obscuriceps in its native area. The host plant habitat requirement could also be a key to the colonization of the A. obscuriceps species during the exposure of the ECS land bridge. Our findings will shed light on the potential role of habitat requirement in the process of biological invasion in future studies.
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Allen Brain Atlas
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International Brain Laboratory public data
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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.