CONNECTION! Cellular respiration is the topic of Chapter 9 in your BIOL 120 lecture. Please review your textbook as needed for this lab.
The freshwater crayfishes (Order Decapoda) are one of the better known crustacean groups in Kentucky. Worldwide, freshwater crayfishes are represented by over 640 species (Crandall and Buhay 2008) with the southeastern United States being one of the epicenters of diversity. Three hundred sixty species are represented in the United States (Taylor et al. 2007) with 54 species in Kentucky. Modification of habitats, sedimentation, and dams are serious threats to freshwater crayfishesas is the introduction and establishment of nonnative crayfishes. Several studies have shown the displacement of native species by more aggressive or opportunistic non-native species (Capelli 1982; Taylor and Redmer 1996; Hill and Lodge 1999). Many introductions are suspected to be from fisherman dumping their purchased live crayfish into the stream at the end of the day. Nationally, about 48% of crayfish species are of conservation concern (ranging from Vulnerable to Endangered); over a third (37%) of the Kentucky fauna falls into this category (KSNPC, 2010). Cave species are particularly at-risk from upland activities that pollute groundwater flowing into cave systems; this includes issues with chemical spills, agricultural runoff, salt from roads, and siltation from poor land use. Best Management Practices are needed to guard against perturbations to groundwater.
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After reading this exerpt from the Kentucky Wildlife Action Plan (WAP), use the resources below to get to know our test organism for Lab 7.
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You will create the matching environment in your beaker labeled "experimental" Examples will include a room temperature vs. a cold environment OR no glucose vs. glucose added.
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Procedure
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I still don't understand how this works!
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Procedure
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We are conducting experiments to identify factors that affect the physiological process of cellular respiration in crayfish. Similarly, Dr. Noah Ashley's lab works to identify physiological, immunological, and behavioral responses to various factors, like sickness and sleep loss, in mice and birds. Specifically, they are investigating the costs and benefits of the sickness response in vertebrates, the inflammatory response in sleep-deprived mice, sleep loss in migratory birds, and the sleep-wake cycle in arctic songbirds. Dr. Ashley's lab is extremely productive! His research proposals have been funded by the NSF and the NIH. Learn more here (Lab Web Page). You just might recognize one of his current graduate students! |