• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 187
  • 17
  • 14
  • 8
  • 8
  • 8
  • 8
  • 8
  • 8
  • 2
  • 2
  • 2
  • 2
  • 2
  • 1
  • Tagged with
  • 252
  • 252
  • 58
  • 45
  • 33
  • 32
  • 20
  • 20
  • 17
  • 17
  • 17
  • 17
  • 16
  • 16
  • 15
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

The role of anthocyanin as an attractant in Sarracenia leucophylla Raf.

Rodenas, Yann J. 05 May 2012 (has links)
Anthocyanin pigment and physical pitcher characteristics were directly proportional to captured prey mass by Sarracenia leucophylla Raf. Few experiments have been conducted to test the role of anthocyanin on insect capture in Sarracenia. Though the role of predation by Sarracenia on insects has long been known, the factors responsible for attraction of prey have yet to be fully evaluated. I sampled S. leucophylla leaves from both red and anthocyanin-free (green) subjects, including measuring pitcher height, mouth width and weighing dried prey mass. There were no significant differences in dried prey mass between red and green phenotypes. Prey mass was positively correlated to pitcher height as well as mouth width. Differences in nectary counts and pitcher temperature were also not statistically significant between red and green groups. This study did not find support for anthocyanin as a prey attractant, and nectar may play a more important role in prey attraction. / Department of Biology
22

Mass-dependent behaviour and the starvation-predation risk trade-off in passerine birds

MacLeod, Ross January 2003 (has links)
No description available.
23

Influences of pea morphology and interacting factors on pea aphids (Acyrthosiphon pisum)

Buchman, Natalie L. January 2008 (has links)
Thesis (M.S.)--Ohio University, August, 2008. / Title from PDF t.p. Includes bibliographical references.
24

Foraging flexibility in the frog-eating bat, Trachops cirrhosus

Page, Rachel Ann, January 1900 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2008. / Vita. Includes bibliographical references.
25

The role of non-consumptive effects in the net effect of an invasive predator in the Laurentian Great Lakes

Pangle, Kevin L. January 2008 (has links)
Thesis (Ph. D.)--Michigan State University. Fisheries and Wildlife, Ecology, Evolutionary Biology, and Behavior, 2008. / Title from PDF t.p. (viewed on July 2, 2009) Includes bibliographical references (p. 143-159). Also issued in print.
26

Risk effects in Elk (Cervus elaphus) behavioral and nutritional responses to wolves and environmental conditions /

Christianson, David Alan. January 2008 (has links) (PDF)
Thesis (PhD)--Montana State University--Bozeman, 2008. / Typescript. Chairperson, Graduate Committee: Scott Creel. Includes bibliographical references (leaves 152-166).
27

Applying predator-prey theory to evaluate large mammal dynamics wolf predation in a newly-established multiple-prey system /

Becker, Matthew Smith. January 2008 (has links) (PDF)
Thesis (PhD)--Montana State University--Bozeman, 2008. / Typescript. Chairperson, Graduate Committee: Robert A. Garrott. Includes bibliographical references.
28

Does nest size constrain clutch size? a tropical-temperate test /

Biancucci, Atilio Luis. January 2009 (has links) (PDF)
Thesis (M.S.) -- University of Montana, 2009. / Title from author supplied metadata. Description based on contents viewed on July 17, 2009. Includes bibliographical references.
29

Mechanisms driving increased prey consumption with increasing predator diversity

Snyder, Gretchen Beth. January 2009 (has links) (PDF)
Thesis (Ph. D.)--Washington State University, August 2009. / Title from PDF title page (viewed on July 31, 2009). "Department of Entomology." Includes bibliographical references.
30

Landscape scale and within-field influences on predator abundance and biocontrol services in soybean fields

Gardiner, Mary Margaret. January 2008 (has links)
Thesis (Ph. D.)--Michigan State University. Dept. of Entomology, 2008. / Title from PDF t.p. (viewed on Aug. 19, 2009) Includes bibliographical references (p. 233-248). Also issued in print.

Page generated in 0.0988 seconds