The limits to biogeographical distributions:: insights from the northward range extension of the marine snail, Kelletia kelletii (Forbes, 1852)

被引:148
作者
Zacherl, D
Gaines, SD
Lonhart, SI
机构
[1] Univ Calif Los Angeles, Dept Organism Biol Ecol & Evolut, Los Angeles, CA 90095 USA
[2] Univ Calif Santa Barbara, Dept Ecol Evolut & Marine Biol, Santa Barbara, CA 93106 USA
[3] Univ Calif Santa Cruz, Inst Marine Sci, Santa Cruz, CA 95064 USA
关键词
California; North America; dispersal; global warming; Kelletia; range expansion;
D O I
10.1046/j.1365-2699.2003.00899.x
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Aim The development of accurate models predicting species range shifts in response to climate change requires studies on the population biology of species whose distributional limits are in the process of shifting. We examine the population biology of an example system using the recent northward range expansion of the marine neogastropod Kelletia kelletii (Forbes, 1852). Location This is a marine coastal shelf neogastropod species whose range extends from Isla Asuncion (Baja California, Mexico) to Monterey (CA, USA). Research sites spanned the extent of the range. Methods We examine abundance distributions and size frequency distributions of K. kelletii for evidence of factors determining historic and contemporary distributional patterns. Population studies were supplemented by historic and contemporary hydrographic data, including seawater temperature data from California Cooperative Oceanic Fisheries Investigations (CalCOFI ) and National Data Buoy Center (NDBC), and seawater circulation data. Results The structure of recently established populations varied dramatically from that of historic populations. Markedly low densities and irregular size frequency distributions characterized recently established populations and suggested only occasionally successful recruitment. The point of transition between historic and recently established populations also corresponded to the location of a gradient in seawater temperature and the confluence of two major oceanic currents. The accumulated data suggest that temperature and/or barriers to dispersal could have set both contemporary patterns in population structure as well as the former northern range limit. Main conclusion Early life stages play a critical role in determining distributional patterns of K. kelletii . Dispersal barriers and temperature limitation are two plausible mechanisms that could determine both contemporary and historic distributional patterns. Future studies on this species should attempt to tease apart the relative importance of these factors in maintaining the populations at the northern edge of the range.
引用
收藏
页码:913 / 924
页数:12
相关论文
共 60 条
  • [1] ARNOLD R, 1903, PALEONTOLOGY STRATIG
  • [2] Auad G, 1998, J PHYS OCEANOGR, V28, P85, DOI 10.1175/1520-0485(1998)028<0085:WICABT>2.0.CO
  • [3] 2
  • [4] CLIMATE-RELATED, LONG-TERM FAUNAL CHANGES IN A CALIFORNIA ROCKY INTERTIDAL COMMUNITY
    BARRY, JP
    BAXTER, CH
    SAGARIN, RD
    GILMAN, SE
    [J]. SCIENCE, 1995, 267 (5198) : 672 - 675
  • [5] Brown J.H., 1998, Biogeography
  • [6] The geographic range: Size, shape, boundaries, and internal structure
    Brown, JH
    Stevens, GC
    Kaufman, DM
    [J]. ANNUAL REVIEW OF ECOLOGY AND SYSTEMATICS, 1996, 27 : 597 - 623
  • [7] BROWN JH, 1995, MACROECOLOGY
  • [8] Carlton J. T., 2000, INVASIVE SPECIES CHA
  • [9] EPIDEMIC MODELS USED TO EXPLAIN BIOGEOGRAPHICAL DISTRIBUTION-LIMITS
    CARTER, RN
    PRINCE, SD
    [J]. NATURE, 1981, 293 (5834) : 644 - 645
  • [10] THE EDGE OF THE RANGE
    CAUGHLEY, G
    GRICE, D
    BARKER, R
    BROWN, B
    [J]. JOURNAL OF ANIMAL ECOLOGY, 1988, 57 (03) : 771 - 785