{ "nid": "47", "details": "\x3cspan class=\"title\"\x3eEcoBeaker: Barnacles and Tides\x3c/span\x3e\x3cbr/\x3e\n\x3cspan class=\"description\"\x3eThis is a recreation of the classic experiments of Connell on why the barnacles \x3ci\x3eChthamalus\x3c/i\x3e and \x3ci\x3eBalanus\x3c/i\x3e have distinct distributions in the rocky intertidal zone of Scotland. Students first observe the distributions, then try to tease apart the causes through a series of removal and transplant experiments. In the more advanced section of the lab, students can add a predatory snail, creating a new distribution. This is a popular lab, especially for asking students to design and carry out experiments.\r\n\x3c/span\x3e\x3cbr/\x3e\n\x3cbr/\x3e\n\x3cstrong\x3eLevel\x3c/strong\x3e: Intro or advanced\x3cbr/\x3e\n\x3cstrong\x3eKey Concepts\x3c/strong\x3e: Abiotic and Biotic Factors; Competition; Niches\x3cbr/\x3e\n\x3cstrong\x3eCourses\x3c/strong\x3e: Aquatic Ecology; Community Ecology; Ecology; Intro Bio: Eco/Evo/Genetics; Marine Biology\x3cbr/\x3e\n          \x3cbr/\x3e\x3ca href=\"/search_result_details/brief/47\" class=\"node_brief\"\x3eRead less\x3c/a\x3e        \x3cbr/\x3e\x3ca href=\"/cart/add/47?dest=search_result_details%2F47\x26amp;dest_query=\"\x3e + Add to course collection\x3c/a\x3e  \x3c/span\x3e \x3c!-- description --\x3e\n" }