College of Humanities and Sciences
نویسندگان
چکیده
AVIAN SEED DISPERSAL ON VIRGINIA BARRIER ISLANDS: POTENTIAL INFLUENCE ON VEGETATION COMMUNITY STRUCTURE AND PATCH DYNAMICS. By Sheri A. Shiflett, Master of Science A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Biology at Virginia Commonwealth University. Virginia Commonwealth University, 2008 Thesis Director, Dr. Donald R. Young, Department of Biology Quantifying seed arrival as an ecological flux provides an understanding of patch dynamics and variations in community structure across the landscape. Because microsites favorable for germination are continually being created and destroyed in coastal ecosystems, successful species disperse seeds to multiple patches to increase probability of survival and growth. This study was conducted on three Virginia barrier islands: Metompkin, Hog, and Smith, which represent a range of size, topographic complexity and species richness. Artificial perches, with an attached fecal seed trap, were installed along transects positioned on each of the three islands. Deposited seeds were collected four times throughout the year. Seed dispersal varied seasonally with most dispersal occurring ix during the spring versus the summer. Seed deposition was greatest on Hog Island and least on Metompkin Island. Spatial variation in island topography, vegetation structure, and island position were important for seed dispersal.
منابع مشابه
A Comparative Study of Test Anxiety Between Students of Biological Sciences and Humanities at University College of Rub-bi Rashid
The aim of this study was to see if there was any significant difference between undergraduate students of biological sciences and humanities in their test anxiety scores at University College of Rub-bi Rashid, Tabriz, Iran. This analytical-descriptive study was conducted on a sample of 188 students composed of 94 students of humanities and 94 students of biological sciences. The cases were sel...
متن کاملXVIII , 2014 INQUIRY New York University College of Arts and Science Student Research Abstracts in Humanities , Social Sciences , and Natural Sciences
متن کامل
INQUIRY New York University College of Arts and Science Student Research Abstracts in Humanities , Social Sciences , and Natural Sciences
متن کامل
Medical humanities in Nepal--snakes and ladders.
In the last decade there has been a quantitative growth in medical schools in Nepal, a developing country in South Asia. Medical Humanities (MH) uses disciplines traditionally termed as the humanities in the pursuit of medical educational goals. The subject is slowly developing in Nepal. Sessions have been conducted at Manipal College of Medical Sciences, Pokhara and KIST Medical College, Lalit...
متن کاملMathematical Biology at an Undergraduate Liberal Arts College
Harvey Mudd College is an undergraduate liberal arts college that emphasizes science, engineering, and mathematics. The college enrollment is just under 800 students, and we have 82 full-time tenure-track faculty. Harvey Mudd is located in Claremont, CA, 30 miles east of Los Angeles. Harvey Mudd is a member of the Claremont Colleges, which include five undergraduate and two graduate institution...
متن کاملComparative Study of Chemical Composition and Antioxidant Activity of Essential Oil Extracted from Acorus calamus L. Leaves
Background & Aim: Acorus calamus L. is a native herb in India. The herb belongs to family Acoraceae. It is perennial and grows in marshy land with scented rhizomes and tapered reed like leaves with 80-100 cm in height. The leaves generally arise from the rhizomes. It is also known as sweet flag in English and vernacularly as Bach. The present investigation reveals the ...
متن کامل