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Comparison Of Branching Allometry Between Ginkgo Biloba And Several Native Michigan Trees, Collin Fox, Noah Holkeboer
Comparison Of Branching Allometry Between Ginkgo Biloba And Several Native Michigan Trees, Collin Fox, Noah Holkeboer
Student Scholars Day Posters
Ginkgo biloba is the only extant species of the gymnospermous order Ginkgoales. Like angiosperms, ginkgo is deciduous with broad leaves and vessel tubes. However, unlike angiosperms, ginkgo possesses a long-shoot x short-shoot branching system, the latter producing most of the leaves, and open-dichotomous leaf venation. Given that branching reflects optimization of photosynthetic capture through structural support and hydraulic efficiency, we compared the degree to which these functions were optimized for ginkgo relative to three native species. DBH, neighbor density and size were measured in field and branch dimensions were measured from photographs and analyzed per Murray’s Law for hydraulic optimization …
Thing 1 And Thing 2 Are In A New Zoo: Changes In Behavior Of Amur Tigers Following Introduction To John Ball Zoo, Caitlin Gerke, Faith Hensley
Thing 1 And Thing 2 Are In A New Zoo: Changes In Behavior Of Amur Tigers Following Introduction To John Ball Zoo, Caitlin Gerke, Faith Hensley
Student Scholars Day Posters
Animals alter their behavior in response to changes in their environment such as alterations to their enclosure, social group, or husbandry routine. In 2018, two related, young adult Amur tigers (Panthera tigris altaica) were transferred to the John Ball Zoo (JBZ). The male siblings were given access to a spacious, wooded outdoor enclosure (area = 920 m²). We used Zoomonitor in 2018 and 2019 to conduct focal-animal sampling of the two males. We recorded state behaviors in 30 sec intervals of scan sampling, and all occurrences of event behaviors, both during 30 min sampling sessions. Our study objective …