Hydrologic connections and overland dispersal in an exotic freshwater crustacean

被引：26

作者：

Shurin J.B. ^{[1
]}

Havel J.E. ^{[2
]}

机构：

[1] Natl. Ctr. for Ecol. Anal./Synthesis, Santa Barbara, CA 93101

[2] Biology Department, Southwest Missouri State University, Springfield

来源：

Biological Invasions | 2002年 / 4卷 / 4期

基金：

美国国家科学基金会;

关键词：

Connectivity; Daphnia lumholtzi; Hydrology; Range expansion; Reservoirs; Species invasions;

D O I：

10.1023/A:1023692730400

中图分类号：

学科分类号：

摘要：

Organisms living in lakes face the problem of dispersing through an uninhabitable matrix in order to reach suitable habitat. One possible mechanism for moving between lakes is by surface water connections. We used a seven-year data set to investigate the spread of the exotic cladoceran Daphnia lumholtzi among Missouri reservoirs with respect to stream connections. Reservoirs that were downstream of known populations of D. lumholtzi were more likely to become invaded than those that were not. However, invasion likelihood was only weakly related to the presence of upstream source populations, and reservoirs without potential upstream sources were colonized at a rate of 7.3% per year. The difference in invasion rate between lakes with and without upstream sources varied among years, and was significant in only two of the six years of study. In addition, the higher invasion rate of downstream lakes could be explained by their greater surface area. These patterns suggest that surface water connections may form one means of dispersal for D. lumholtzi, although overland movement is also important. The ability to utilize several modes of dispersal may explain the rapid expansion of this species' range since its arrival in North America.

引用

页码：431 / 439

页数：8

共 39 条

[1]

ArcView GIS, V. 3.2, (1999)

[2]

Boileau M.G., Hebert P.D.N., Genetic consequences of passive dispersal in pond-dwelling copepods, Evolution, 45, pp. 721-733, (1991)

[3]

Boileau M.G., Hebert P.D.N., Schwartz S.S., Non-equilibrium gene frequency divergence: Persistent founder effects in natural populations, Journal of Evolutionary Biology, 5, pp. 25-39, (1992)

[4]

Brendonck L., Riddoch B.J., Wind-borne short-range egg dispersal in anostracans (Crustacea: Branchiopoda), Biological Journal of the Linnean Society, 67, pp. 87-95, (1999)

[5]

Buchan L.A.J., Padilla D.K., Estimating the probability of long-distance overland dispersal of invading aquatic species, Ecological Applications, 9, pp. 254-265, (1999)

[6]

Caceres C.E., Interspecific variation in the abundance, production, and emergence of Daphnia diapausing eggs, Ecology, 79, pp. 1699-1710, (1998)

[7]

Carlton J.T., Geller J.B., Ecological Roulette - The global transport of nonindiginous marine organisms, Science, 261, pp. 78-82, (1993)

[8]

Cohen G.M., Shurin J.B., Scale-dependence and mechanisms of dispersal in freshwater zooplankton, Oikos

[9]

Cornell H.V., Lawton J.H., Species interactions, local and regional processes, and limits to the richness of ecological communities: A theoretical perspective, Journal of Animal Ecology, 61, pp. 1-12, (1992)

[10]

De Meester L., Local genetic differentiation and adaptation in freshwater zooplankton populations: Patterns and processes, Ecoscience, 3, pp. 385-399, (1996)

← 1 2 3 4 →