{"id":2689,"date":"2020-12-16T12:58:39","date_gmt":"2020-12-16T12:58:39","guid":{"rendered":"http:\/\/jenaexperiment.uni-jena.de\/?p=2689"},"modified":"2020-12-16T13:06:15","modified_gmt":"2020-12-16T13:06:15","slug":"new-publication-from-venjakob-in-journal-of-insects","status":"publish","type":"post","link":"https:\/\/the-jena-experiment.de\/index.php\/2020\/12\/16\/new-publication-from-venjakob-in-journal-of-insects\/","title":{"rendered":"New publication from Venjakob  et al. in Journal of Insects: Inter-Individual Nectar Chemistry Changes of Field Scabious, Knautia arvensis"},"content":{"rendered":"\n<p class=\"justify\">Nectar is crucial to maintain plant-pollinator mutualism. Nectar quality  (nutritional composition) can vary strongly between individuals of the  same plant species. The factors driving such inter-individual variation  have however not been investigated closer. We investigated nectar  quality of field scabious, Knautia arvensis  in different grassland plant communities varying in species composition  and richness to assess whether nectar quality can be affected by the  surrounding plant community. We analyzed (with high performance liquid  chromatography) the content of carbohydrates, overall amino acids, and  essential amino acids. <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" src=\"\/wp-content\/uploads\/image-48.png\" alt=\"\" class=\"wp-image-2690\" width=\"332\" height=\"256\" srcset=\"\/wp-content\/uploads\/image-48.png 920w, \/wp-content\/uploads\/image-48-300x232.png 300w, \/wp-content\/uploads\/image-48-768x594.png 768w\" sizes=\"(max-width: 332px) 100vw, 332px\" \/><\/figure><\/div>\n\n\n\n<p class=\"justify\">Amino acid and carbohydrate concentrations and  proportions varied among plant individuals and with the surrounding  plant community but were not related to the surrounding plant species  richness. Total and individual carbohydrate concentrations were lowest,  while proportions of the essential amino acids, valine, isoleucine,  leucine (all phagostimulatory), and lysine were highest in plant species  communities of the highest diversity. Our results show that K. arvensis  nectar chemistry varies with the composition of the surrounding plant  community, which may alter the taste and nutritional value and thus  affect the plant\u2019s visitor spectrum and visitation rate. However, the  strong inter-individual variation in nectar quality requires additional  studies (e.g., in semi-field studies) to disentangle different biotic  and abiotic factors contributing to inter-individual nectar chemistry in  a plant-community context. <\/p>\n\n\n\n<h4>Reference:<\/h4>\n\n\n\n<p>Venjakob, C., Leonhardt, S., Klein, A.-M. Inter-Individual Nectar Chemistry Changes of Field Scabious, Knautia arvensis. 2020. <em>Insects<\/em>, <em>11<\/em>(2), 75; <a href=\"https:\/\/doi.org\/10.3390\/insects11020075\">https:\/\/doi.org\/10.3390\/insects11020075<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nectar is crucial to maintain plant-pollinator mutualism. Nectar quality (nutritional composition) can vary strongly between individuals of the same plant species. The factors driving such inter-individual variation have however not&hellip;<\/p>\n","protected":false},"author":2,"featured_media":2690,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[15,13],"tags":[],"_links":{"self":[{"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/posts\/2689"}],"collection":[{"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/comments?post=2689"}],"version-history":[{"count":3,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/posts\/2689\/revisions"}],"predecessor-version":[{"id":2694,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/posts\/2689\/revisions\/2694"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/media\/2690"}],"wp:attachment":[{"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/media?parent=2689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/categories?post=2689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/tags?post=2689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}