{"676593":{"#nid":"676593","#data":{"uid":"35599","author":"sperrin6","created_gmt":"2025-03-19 13:56:54","changed_gmt":"2025-03-19 13:56:54","title":"A long-term field study of Californian stick insects (Timema cristinae) reveals how competing selection pressures shape their evolution. (Illustration: Mark Belan\/ArtSciStudios)","body":[{"value":"\u003Cp\u003E\u003Ca href=\u0022https:\/\/doi.org\/10.1126\/science.aap9125\u0022\u003EA long-term field study of Californian stick insects (\u003Cem\u003ETimema cristinae\u003C\/em\u003E)\u003C\/a\u003E reveals how competing selection pressures shape their evolution. While brown-colored stick insects experience lower predation rates from Californian scrub jays (\u003Cem\u003EAphelocoma californica\u003C\/em\u003E) than their green counterparts during hot, dry years when bright green leaves are scarce, they face higher mortality due to reduced heat tolerance. This trade-off demonstrates how climate and predation simultaneously drive evolutionary adaptation in natural populations, and this case study has been used to develop statistical models that predict future evolutionary outcomes. (Illustration: Mark Belan\/ArtSciStudios)\u003C\/p\u003E","format":"limited_html"}],"image":{"alt":"A long-term field study of Californian stick insects (Timema cristinae) reveals how competing selection pressures shape their evolution. (Illustration: Mark Belan\/ArtSciStudios)","view":{"#theme":"field","#title":"Image","#label_display":"hidden","#view_mode":"image_740","#language":"en","#field_name":"field_image","#field_type":"image","#field_translatable":false,"#entity_type":"media","#bundle":"image","#object":{},"#items":{},"#formatter":"image","#is_multiple":false,"#third_party_settings":[],"0":{"#theme":"image_formatter","#item":{},"#item_attributes":[],"#image_style":"large","#url":null,"#cache":{"tags":["config:image.style.large","file:260399"],"contexts":[],"max-age":-1}},"#cache":{"contexts":[],"tags":[],"max-age":-1},"#weight":0},"file":{"fid":"260399","name":"StroudRatcliff_Fig2.jpg","path":"\/sites\/default\/files\/2025\/03\/19\/StroudRatcliff_Fig2.jpg","fullpath":"\/var\/www\/html\/files\/public\/2025\/03\/19\/StroudRatcliff_Fig2.jpg","mime":"image\/jpeg","size":611105}},"groups":[{"id":"1278","name":"College of Sciences"}],"keywords":[]}}}