Life Sciences Commons^™

Healthy Holidays, Winston J. Craig

Lake Union Herald

No abstract provided.

Data For Henson Et Al. 2014, Shandelle M. Henson, James L. Hayward, Gordon Atkins, Amanda Sandler, Wadenerson Saint Martin

Faculty Publications

These data are archived for the paper "Changing sea surface temperature alters timescale of reproductive synchrony in seabirds" by Henson et al., currently submitted to Nature.

Rich And Creamy Avocados, Winston J. Craig

Lake Union Herald

No abstract provided.

Sweet Results, Winston J. Craig

Lake Union Herald

No abstract provided.

Investigation Of Spatial Isotope Ratios In Soil And The Effects Of Fertilizer On Plant Isotope Ratios, Jamie Kim, H. Thomas Goodwin Ph.D.

Posters, Presentations, and Papers

A previous Honors study analyzed diet of thirteen-lined ground squirrels at the Andrews University Airpark by studying δ13C and δ15N isotope values of their fecal pellets (Chacko, 2013). Fecal samples collected within 25m of a cornfield had elevated isotope values.

High δ13C values indicate greater consumption of C4 plants, such as corn (Ehleringer et al., 1986); high δ15N values indicate increased consumption of animal matter (DeNiro and Epstein, 1981 ). However, the spatial pattern may be due to variation in the soil, reflecting long-term patterns in the vegetation.

Soil samples were taken throughout the airpark and analyzed for δ13C and …

Water/Soil Conservation In Jordan, Andrey Yun

Posters, Presentations, and Papers

Two global challenges are Sustainable Development, Climate Change and Clean Water. Jordan-Arab region could face severe water crisis by 2015. (7) The indigenous methods of harvesting and storing of rainwater in Jordan have been practiced for 4000 years. Archaeologists working in Jordan confirmed that in the past, the local population depended on cisterns, terraces and dams to obtain their annual water needs which included agricultural irrigation and domestic supply. This research provides a design of landscape exhibits with educational “storyboards” for indoor exhibit. Design of models of reservoirs and water conservation holding areas will be part of interpretive educational signage …

Field Documentation Of Summer And Fall Diet In Thirteen-Lined Ground Squirrels, Ictidomys Tridecemlineatus, Trevor Zimmerman, H. Thomas Goodwin

Posters, Presentations, and Papers

Prior work has shown a shift in stable carbon isotope values of Ictidomys tridecemlineatus incisors and fecal pellets late in the active season (Jang et al., 2012 and Chacko, 2013).

The purpose of this study was to find out if the diet of I. tridecemlineatus shifts from C3 to C4 plants during the late part of the active season through direct observation of feeding activities. Observations were made at the Andrews University Airpark in SW Michigan from July to late September, 2013.

Representative samples of plant and insect material fed on were collected and analyzed for stable carbon and nitrogen …

Healing Power Of The Mind, Winston J. Craig

Lake Union Herald

No abstract provided.

Hand Me The Hazelnuts, Winston J. Craig

Lake Union Herald

No abstract provided.

A Big Buzz, Winston J. Craig

Lake Union Herald

No abstract provided.

P-01 The Effects Of Celite Formulated Rhizobium Rubi And Tryptophan On Velvetleaf Plant Growth, Jonathon Ahn

Honors Scholars & Undergraduate Research Poster Symposium Programs

Rhizobium rubi AT3-4RS/6 and tryptophan may be useful in replacing chemical herbicides as biological control agents. Previous research has shown that Rhizobium rubi AT3-4RS/6 produces IAA-like compounds that are deleterious to weed growth. In this project R. rubi AT3/4RS/6 will be formulated in Celite, a granular, diatomaceous earth carrier. The purpose of this research is to analyze if tryptophan influences R. rubi AT3/4RS/6 populations in the velveltleaf rhizosphere, and if this colonization is associated with reduced root weight and shoot length. The experiment design consists of five soil treatments (bacteria+tryptophan+celite, tryptophan+celite, bacteria+celite, celite alone, and soil alone) with 10 velvetleaf …

P-11 Cytosolic Carboxypeptidase 5 (Ccp5) And Cilia Development In Zebrafish, Philip Giddings

Honors Scholars & Undergraduate Research Poster Symposium Programs

My research project is focused around a specific gene—cytosolic carboxypeptidase 5 (CCP5). Previous research suggests that the CCP5 gene is essential for the modification of α-tubulin which is necessary for normal growth of cilia in the olfactory pit of zebrafish. It is my goal to confirm the role of the CCP5 gene in olfactory ciliary growth using scanning electron microscopy. Using a CCP5-MO to knockdown, the gene I can compare the resulting phenotype to that of a control specimen in order to determine any visible differences with respect to cilia morphology.

P-26 Hawksbill Turtle (Eretmochelys Imbricata) Density And The Effect Of Pollution Debris On The Crawling Rates Of Hawksbill Hatchlings In Utila, Honduras, Kyungje Sung, Stephen Dunbar, H. Thomas Goodwin

Honors Scholars & Undergraduate Research Poster Symposium Programs

The hawksbill turtle (Eretmochelys imbricata) is a critically endangered species. Hence, various conservation efforts by groups such as ProTECTOR are taking place to stabilize its population. To support such efforts, my study focused on the turtle population in and around the island of Utila, Honduras. Specifically, I examined the critical migration period of hawksbill turtle hatchlings from nest to water to determine if various densities of plastic pollution had an effect on crawling times. A reduction in crawling time is critical for it could increase predation time. Furthermore, the pollution debris may deter movement, causing the hatchling to …

P-27 Factors Affecting Phonotactic Responses In Male Acheta Domesticus, Erik Thordarson

Honors Scholars & Undergraduate Research Poster Symposium Programs

This research addresses some of the possible factors that affect male Acheta domesticus phonotactic responses to calls of males of the same species. The study examines cricket age and social interaction with females as possible factors affecting this behavior. Through logistic regression analysis, the study attempts to demonstrate a link between these factors and the responsiveness of the male crickets in the study. As the crickets aged, they responded to a wider range of syllable periods, which may imply that they follow a similar pattern of decreasing selectivity in their response with age as their female counterparts. The socialization aspect …

P-28 The Prevalence Of Encysted Toxoplasma & Sarcocystis In Consumer-Grade Pork, Beef, And Mutton In Michiana, Ross Trecartin

Honors Scholars & Undergraduate Research Poster Symposium Programs

Commonly present in the muscle of animals are the tissue cysts of Toxoplasma and Sarcocystis. The aim of this study was to determine the presence and levels of Toxoplasma/Sarcocystis tissue cysts in retail pork, beef, and mutton throughout the Michiana area. A total of 36 samples, 12 from each species, were exposed to a digestive solution mimicking stomach conditions. The solution consisted of Pepsin 0.75% , NaCl 0.86%, and HCl adjusted to a pH of 1-2. The digested samples were then strained through several layers of cheesecloth, centrifuged, and examined for the presence of parasites.

P-19 Hcnabc Operon Transcription Of Pseudomonas Putida Under Varying Iron And Oxygen Concentrations And Culture Age, Christine Lee

Honors Scholars & Undergraduate Research Poster Symposium Programs

The species Pseudomonas putida produces hydrogen cyanide (HCN) through the transcription of the hcnABC operon. The purpose of this experiment is to determine how the hcnABC operon is affected by varying levels of iron and oxygen, and age of bacteria culture. To test this, P. putida is grown under five conditions: the presence of iron, the absence of iron, with aeration, without aeration, and without iron and aeration. At 8, 18, and 30 hours, the cultures are assessed for HCN production and cell density. HCN production is measured via bioluminescence; light emission occurs whenever HCN is produced because the modified …

Going Raw, Winston J. Craig

Lake Union Herald

No abstract provided.

Heart Smart, Winston J. Craig

Lake Union Herald

No abstract provided.

Natural Interventions And Hydrotherapy Workshop, Evelyn Kissinger

Andrews Agenda: Campus News

No abstract provided.

Egg Cannibalism In A Gull Colony Increases With Sea Surface Temperature, Lynelle M. Weldon, Shandelle M. Henson, James Hayward, Brianna G. Payne, Libby C. Megna, Andre E. Moncrieff

Faculty Publications

Cannibalism occurs regularly across a broad range of taxa with a variety of ecological and evolutionary consequences. Rises in sea surface temperature (SST) have been linked to increased cannibalism in some species, including polar bears (Ursus maritimus), Peruvian anchovy (Engraulis ringens), and Peruvian hake (Merluccius gayi peruanus), and might be expected in birds that depend on marine food webs for sustenance. Increased SSTs are associated with lowered ocean thermoclines and weakened upwellings. These changes, in turn, lead to decreased productivity in surface water and movement of surviving forage fish to deeper water, thereby food-stressing surface feeders such as gulls, diminishing …

The Theological And Practical Significance Of Health Reform In The Writings Of Ellen G. White, Angel Manuel Rodriguez

Journal of the Adventist Theological Society

No abstract provided.

Ecosystem Community Health Initiatives And Care Of Creation, Warren A. Shipton

Journal of the Adventist Theological Society

No abstract provided.

Feeding Interactions Between Juvenile And Adult Flightless Cormorants., James Hayward, Libby C. Megna, Brianna G. Payne

Faculty Publications

We report observations on chick feedings by adult Flightless Cormorants Phalacrocorax harrisi, indicating that, contrary to the literature, the sequence of interaction is similar to that of other Pelecaniformes.

Fighting The Flu, Winston J. Craig

Lake Union Herald

No abstract provided.

Creation And Theodicy: Protological Presuppositions In Evolutionary Theodicy, Adriani Milli Rodrigues

Journal of the Adventist Theological Society

No abstract provided.