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White Sweetclover (Melilotus albus) and Narrowleaf Hawksbeard (Crepis tectorum) Seed Germination after Passing through Moose

Published online by Cambridge University Press:  20 January 2017

Steven S. Seefeldt ,
William B. Collins ,
Joseph C. Kuhl  and
Marcus Clauss
Steven S. Seefeldt*
Affiliation:
USDA/ARS, Subarctic Agricultural Research Unit, University of Alaska Fairbanks, Fairbanks, AK 99775-7200
William B. Collins
Affiliation:
Alaska Department of Fish and Game, Division of Wildlife Conservation, Palmer, AK 99645-6736
Joseph C. Kuhl
Affiliation:
USDA/ARS, Subarctic Agricultural Research Unit, Palmer, AK 99645-6629
Marcus Clauss
Affiliation:
Clinic of Zoo Animals, Exotic Pets and Wildlife, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
*
Corresponding author's E-mail: Steven.Seefeldt@ars.usda.gov
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Abstract

White sweetclover and narrowleaf hawksbeard are nonindigenous invasive plant species in Alaska that are rapidly spreading, including into areas that are otherwise free of nonindigenous plants. There has been concern that native moose could be dispersing germinable seed from these plants after ingestion. To address this concern, a study was conducted involving tame moose at the University of Alaska Fairbanks Agriculture and Forestry Experiment Station, Matanuska Experiment Farm, Palmer, AK. Objectives were to determine if seeds from these two plant species could survive mastication and digestive passage through moose, whether this passage impacted seed germination, and whether seed passage rates were the same as similar sized Cr-mordanted fiber. In this study, narrowleaf hawksbeard seed rarely survived mastication and digestion with only five seedlings recovered from 42,000 germinable seed fed to the moose. About 16% of germinable white sweetclover seed (3,595 of 22,000) fed to the moose produced seedlings. Most of the sweetclover seedlings came from feces produced 2 and 3 d after feeding. In two moose, sweetclover seedlings were grown from fecal material that was passed 11 d after feeding, raising the possibility that seeds could be transported long distances after ingestion. Cr-mordanted fiber passage did not closely follow seedling producing seed, possibly because time in the rumen might reduce seed germination. Once roadsides in Alaska become infested with white sweetclover, moose can then serve as a transport vector of these weeds into river channels and floodplains, which are distant from roads. This information will impact white sweetclover management programs and alert land managers to the potential for other instances of wildlife-mediated seed dispersal.

Keywords

Narrowleaf hawksbeard, Crepis tectorum L.white sweetclover, Melilotus albus Desr.moose, Alces alces L.Endozoic distributionendozoochorous dispersalseed transport
Type
Research
Information
Invasive Plant Science and Management , Volume 3 , Issue 1 , May 2010 , pp. 26 - 31
Copyright
Copyright © Weed Science Society of America 

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Footnotes

Current address of third author: Plant, Soil, and Entomological Sciences, University of Idaho, Moscow, ID 83844-2339

References

Literature Cited

AKEPIC Database 2008. Alaska exotic plant information clearinghouse database inventory. University of Alaska Anchorage. http://akweeds.uaa.alaska.edu. Accessed: December 18, 2008.Google Scholar
Ballard, W. B., Whitman, J. S., and Reed, D. J. 1991. Population dynamics of moose in south-central Alaska. Wildl, Monogr 98:1–54.Google Scholar
Clergeau, P. 1992. The effect of birds on seed germination of fleshy-fruited plants in temperate farmland. Acta Oecol 13:679–686.Google Scholar
Conn, J. S., Beattie, K. L., Shephard, M. A., Carlson, M. L., Lapina, I., Heber, M., Gronquist, R., Densmore, R., and Rasy, M. 2008. Alaska Melilotus invasions: distribution, origin, and susceptibility of plant communities. Arct. Anarct. Alp. Res 40:298–308.Google Scholar
Hulten, E. 1968. Flora of Alaska and Neighboring Territories. Stanford, CA Stanford University Press. 1008.Google Scholar
Irwin, D. L. 1945. Forty-seven years of experimental work with grasses and legumes in Alaska. Univ. Alaska Agric. Exp. Stn. Bull. 12. 47.Google Scholar
Klebesadel, L. J. 1993. Effects of daily photoperiod/nyctoperiod and temperature on autumn development of crown buds and dormancy, freeze tolerance, and storage of food reserves in latitudinal ecotypes of biennial sweetclover. Univ. Alaska Fairbanks Agric. For. Exp. Stn. Bull. 95. 23.Google Scholar
Klebesadel, L. J. 1994. Responses of biennial sweetclovers of diverse latitudinal adaptation to various management procedures in Alaska. Univ. Alaska Fairbanks Agric. For. Exp. Stn. Bull. 98. 19.Google Scholar
Mandujano, S., Gallina, S., and Bullock, S. H. 1994. Frugivory and dispersal of Spondias purpurea (Anacardiaceae) in a tropical deciduous forest in Mexico. Rev. Biol. Trop 42:107–114.Google Scholar
Najda, H. G., Darwent, A. L., and Hamilton, G. 1982. The biology of Canadian weeds. 54. Crepis tectorum L. Can. J. Plant Sci 62:473–481.Google Scholar
Olson, B. E. and Wallander, R. T. 2002. Does ruminal retention time affect leafy spurge seed of varying maturity? J. Range Manag 55:65–69.Google Scholar
SAS 1988. SAS Procedures Guide. Version 6, 3rd ed. Cary, NC SAS Institute. 441.Google Scholar
Schwarm, A., Ortmann, S., Wolf, C., and Clauss, M. 2008. Excretion patterns of fluid and different sized particle passage markers in banteng (Bos javanicus) and pygmy hippopotamus (Hexaprotodon liberiensis): two functionally different foregut fermenters. Comp. Biochem. Physiol. A, Comp. Physiol 150:32–39.Google Scholar
Schwarm, A., Ortmann, S., Wolf, C., and Clauss, M. 2009. No distinct difference in the excretion of large particles of varying size in a wild ruminant, the banteng (Bos javanicus). Eur. J. Wildl. Res 55:531–533.Google Scholar
Sinclair, A. R. E. 1983. The function of distance movements in vertebrates. Pages 240–258. in Swingland, I. R. and Greenwood, P. J. The Ecology of Animal Movement. Oxfordshire, United Kingdom Clarendon Press. 301.Google Scholar
Traveset, A. 1998. Effect of seed passage through vertebrate frugivores' guts on germination: a review. Perspect. Plant Ecol. Evol. Syst 1/2:151–190.Google Scholar
Turkington, R. A., Cavers, P. B., and Rempel, E. 1978. The biology of Canadian weeds. 29. Melilotus alba Desr. and M. officinalis (L.) Lam. Can. J. Plant Sci 58:523–537.Google Scholar
Uden, P., Colucci, P., and Van Soest, P. 1980. Investigation of chromium, cerium and cobalt as markers in digesta. Rate of passage studies. J. Sci. Food Agric 31:625–632.Google Scholar
Van Ballenberghe, V. 1978. Final report on the effects of the trans-Alaskan pipeline on moose movements. Special Report. 23. Joint State/Federal Fish and Wildlife Advisory Team, Anchorage, Alaska. 41.Google Scholar
Wallander, R. T., Olson, B. E., and Lacey, J. R. 1995. Spotted knapweed seed viability after passing through sheep and mule deer. J. Range Manag 48:145–149.Google Scholar