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1,756 results for “Plantago”
Plantago patagonica occurrences from the Colorado Plateau, GBIF download 02/18/2022
<p><em>Plantago patagonica</em> occurrences from the Colorado Plateau, GBIF download 02/18/2022. Downloaded with <em>gbif</em> function from <em>dismo</em> package in R.</p>
Oviposition trials of Euphydryas phaeton on Plantago lanceolata
<p>Understanding the circumstances under which insect herbivores will adopt a novel host plant is a longstanding question in basic and applied ecology. Though there has been ample study of regional differences in host preference across numerous insect herbivores, the extent to which intraspecific variation in plant species shape these patterns is relatively less well known. In parts of its range the Baltimore checkerspot<em> Euphydryas phaeton</em> uses English plantain <em>Plantago lanceolata</em>, a novel host plant, in addition to its native host, White turtlehead <em>Chelone galbra</em>. We offered female butterflies from each region the non-native host lpant sourced from both regions and compared their oviposition behavior. The non-native host was near universally rejected by butterflies in the region where only the native plant is used. In the region where both hosts are used, plants from that same region were preferred relative to plants from the other region. This suggests that regional variation in host plant use by an insect depends on intraspecific variation in both species in the interaction.</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>
Plantago virginica (Plantaginaceae) - inflorescence - whole - unspecified
Image of Plantago virginica (Plantaginaceae) - inflorescence - whole - unspecified
Plantago virginica (Plantaginaceae) - inflorescence - whole - unspecified
Image of Plantago virginica (Plantaginaceae) - inflorescence - whole - unspecified
Plantago virginica (Plantaginaceae) - fruit - juvenile
Image of Plantago virginica (Plantaginaceae) - fruit - juvenile
Plantago virginica (Plantaginaceae) - leaf - margin of upper + lower surface
Image of Plantago virginica (Plantaginaceae) - leaf - margin of upper + lower surface
Plantago virginica (Plantaginaceae) - stem - showing leaf bases
Image of Plantago virginica (Plantaginaceae) - stem - showing leaf bases
Plantago virginica (Plantaginaceae) - stem - showing leaf bases
Image of Plantago virginica (Plantaginaceae) - stem - showing leaf bases
Plantago virginica (Plantaginaceae) - whole plant - in flower - general view
Image of Plantago virginica (Plantaginaceae) - whole plant - in flower - general view
Plantago virginica (Plantaginaceae) - leaf - basal or on lower stem
Image of Plantago virginica (Plantaginaceae) - leaf - basal or on lower stem
Plantago lanceolata (Plantaginaceae) - whole plant - in flower - general view
Image of Plantago lanceolata (Plantaginaceae) - whole plant - in flower - general view
Plantago lanceolata (Plantaginaceae) - stem - showing leaf bases
Image of Plantago lanceolata (Plantaginaceae) - stem - showing leaf bases
Plantago lanceolata (Plantaginaceae) - inflorescence - whole - unspecified
Image of Plantago lanceolata (Plantaginaceae) - inflorescence - whole - unspecified
Plantago lanceolata (Plantaginaceae) - leaf - basal or on lower stem
Image of Plantago lanceolata (Plantaginaceae) - leaf - basal or on lower stem
Plantago rugelii (Plantaginaceae) - leaf - basal or on lower stem
Image of Plantago rugelii (Plantaginaceae) - leaf - basal or on lower stem
Plantago rugelii (Plantaginaceae) - whole plant - in flower - general view
Image of Plantago rugelii (Plantaginaceae) - whole plant - in flower - general view
Plantago rugelii (Plantaginaceae) - inflorescence - lateral view of flower
Image of Plantago rugelii (Plantaginaceae) - inflorescence - lateral view of flower
Plantago rugelii (Plantaginaceae) - leaf - basal or on lower stem
Image of Plantago rugelii (Plantaginaceae) - leaf - basal or on lower stem
Plantago rugelii (Plantaginaceae) - leaf - unspecified
Image of Plantago rugelii (Plantaginaceae) - leaf - unspecified
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