{"id":3490,"date":"2021-07-26T07:28:18","date_gmt":"2021-07-26T07:28:18","guid":{"rendered":"http:\/\/the-jena-experiment.de\/?p=3490"},"modified":"2021-07-26T07:28:39","modified_gmt":"2021-07-26T07:28:39","slug":"how-does-biodiversity-loss-affect-the-response-of-plant-species-to-global-change","status":"publish","type":"post","link":"https:\/\/the-jena-experiment.de\/index.php\/2021\/07\/26\/how-does-biodiversity-loss-affect-the-response-of-plant-species-to-global-change\/","title":{"rendered":"How does biodiversity loss affect the response of plant species to global change?"},"content":{"rendered":"\n<p> <strong>Principle Investigators:<\/strong> Christiane Roscher, Nico Eisenhauer, Simone Cesarz<br> <strong>PhD student<\/strong>: Peter Dietrich <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" src=\"\/wp-content\/uploads\/Peter-Dietrich-Portrait-769x1024.jpg\" alt=\"\" class=\"wp-image-2628\" width=\"112\" height=\"149\" srcset=\"\/wp-content\/uploads\/Peter-Dietrich-Portrait-769x1024.jpg 769w, \/wp-content\/uploads\/Peter-Dietrich-Portrait-225x300.jpg 225w, \/wp-content\/uploads\/Peter-Dietrich-Portrait-768x1023.jpg 768w, \/wp-content\/uploads\/Peter-Dietrich-Portrait-1154x1536.jpg 1154w, \/wp-content\/uploads\/Peter-Dietrich-Portrait.jpg 1400w\" sizes=\"(max-width: 112px) 100vw, 112px\" \/><\/figure><\/div>\n\n\n\n<p class=\"justify\">Loss of diversity can alter the selection environment that plants  experience, so that persisting species must adapt to novel biotic  interactions, especially to changes in the composition of mutualistic  and antagonistic soil biota (new positive or negative plant-soil  feedbacks). However, little is known about how fast the remaining  species adapt to the novel biotic conditions and whether such  micro-evolutionary processes affect the response of these species to  global change. To address this knowledge gap, we investigated  species-poor and species-rich plant communities and performed a common  garden and a phytometer experiment to test the following hypotheses:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" src=\"\/wp-content\/uploads\/Associated-Projects_PeterDP_Common-garden-experiment-in-Bad-Lauchst\u00e4dt.jpg\" alt=\"\" class=\"wp-image-2629\" width=\"323\" height=\"182\" srcset=\"\/wp-content\/uploads\/Associated-Projects_PeterDP_Common-garden-experiment-in-Bad-Lauchst\u00e4dt.jpg 960w, \/wp-content\/uploads\/Associated-Projects_PeterDP_Common-garden-experiment-in-Bad-Lauchst\u00e4dt-300x169.jpg 300w, \/wp-content\/uploads\/Associated-Projects_PeterDP_Common-garden-experiment-in-Bad-Lauchst\u00e4dt-768x432.jpg 768w\" sizes=\"(max-width: 323px) 100vw, 323px\" \/><\/figure><\/div>\n\n\n\n<p class=\"justify\"> (1) Species interactions with soil biota depend on their shared plant  diversity and environmental histories (1a), such that species are better  adapted to their soil environment of origin (home-soil). Species  performance is weaker if individuals are transplanted into a different  soil environment (away-soil; 1b).<br> (2) Plant individuals in their origin soil environment (home-soil) have a  higher performance than individuals transplanted into a different soil  environment (away-soil), when treated with global change drivers  (drought, increased nitrogen input).<br> To test hypothesis 1a, we took plant and soil samples to determine  species performance (plant biomass, root biomass, nitrogen  concentrations in plant and soil, etc.) and the degree of negative and  positive plant-soil feedbacks (nematodes, mycorrhizal colonization) in  the 1-, 2-, 6- and 9-species plots of the dominance experiment.  Furthermore, in 2018 we established the phytometer experiment to check  hypothesis 1b. Therefore, we collected seeds from 4 grass species  growing in the 2- and 6-species plots of the dominance experiment and  transplanted seedlings grown from these seeds either in the dominance  plot where the mother was growing (home-soil) or in plots with a  different soil environment (away-soil; after removal of the vegetation).  To test hypothesis 2, we took soil and seed samples from the same  dominance plots, which were also used for the phytometer experiment, and  established a common garden experiment manipulating the soil  environment (home or away) and the impact of drought and increased  nitrogen input in a full factorial design.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" src=\"\/wp-content\/uploads\/Associated-Projects_PeterDP_Phytometer-experiment-in-the-Dominance-plots-e1605002633118-1024x956.jpg\" alt=\"\" class=\"wp-image-2630\" width=\"251\" height=\"234\" srcset=\"\/wp-content\/uploads\/Associated-Projects_PeterDP_Phytometer-experiment-in-the-Dominance-plots-e1605002633118-1024x956.jpg 1024w, \/wp-content\/uploads\/Associated-Projects_PeterDP_Phytometer-experiment-in-the-Dominance-plots-e1605002633118-300x280.jpg 300w, \/wp-content\/uploads\/Associated-Projects_PeterDP_Phytometer-experiment-in-the-Dominance-plots-e1605002633118-768x717.jpg 768w, \/wp-content\/uploads\/Associated-Projects_PeterDP_Phytometer-experiment-in-the-Dominance-plots-e1605002633118.jpg 1152w\" sizes=\"(max-width: 251px) 100vw, 251px\" \/><\/figure><\/div>\n\n\n\n<p class=\"justify\"> We expect that species-rich communities show more positive plant-soil  feedbacks and species-poor communities more negative plant-soil  feedbacks. Furthermore, we expect that individuals in home-soil show  higher performance (biomass) and higher resistance to global change  drivers than individuals in away-soil. These results could help to prove  whether plant individuals of the same species took different  evolutionary pathways depending on the plant species diversity of  neighborhood and resulting specificity of soil biota and that  micro-evolutionary changes may impact species responses to global change  drivers, which might be important to understand the mechanisms how  ecosystems respond to the ongoing process of global change.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Principle Investigators: Christiane Roscher, Nico Eisenhauer, Simone Cesarz PhD student: Peter Dietrich Loss of diversity can alter the selection environment that plants experience, so that persisting species must adapt to&hellip;<\/p>\n","protected":false},"author":2,"featured_media":2629,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/posts\/3490"}],"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=3490"}],"version-history":[{"count":2,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/posts\/3490\/revisions"}],"predecessor-version":[{"id":3492,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/posts\/3490\/revisions\/3492"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/media\/2629"}],"wp:attachment":[{"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/media?parent=3490"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/categories?post=3490"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/tags?post=3490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}