Abstract
Humans are an important intertidal predator in central Chile. Following a five-year study we report on the effects of the exclusion of humans from the rocky intertidal at Las Cruces, central Chile. The middle intertidal of harvested and non-harvested areas diverged in species diversity and composition during the experiment. In harvested areas the middle intertidal rocky shore was dominated throughout the study by a monoculture of mussels, Perumytilus purpuratus. When humans were excluded, the middle intertidal community switched to one dominated by barnacles (predominantly Jehlius cirratus and Chthamalus scabrosus); this community has persisted for at least three years, despite the presence of forces e.g. mussel larvae, that have the potential to alter the community structure. Such changes were mediated by the muricid gastropod Concholepas concholepas, a key-stone predator. As a consequence of the above changes, the species diversity, H', (primary space occupiers) in the non-harvested area increased from H'=0 at the beginning of the study in 1983 (when the middle intertidal community was dominated by mussels), to values ca H'=2 toward the middle of the study in 1984 (which coincided with the maximum predatory impact of C. concholepas) and subsequently decreasing to ca H'=0.5 at the end of the study in 1987 (when the middle intertida community was dominated by barnacles).
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Literature cited
Anonymous (1985). El terremoto del 3 de Marzo de 1985 y los desplazamientos de la corteza terrestre. Terra Australis 19: 1–6
Bayne, B. L. (1965) Growth and the delay of metamorphosis of the larvae of Mytilus edulis (L.) Ophelia 2: 1–47
Bender, E. A., Case, T. J., Gilpin, M. E. (1984) Perturbation experiments in community ecology: theory and practice. Ecology 65: 1–13
Boesch, D. F. (1974). Diversity, stability and response to human disturbance in estuarine ecosystems. In: Structure, functioning and management of ecosystems. Proc. 1 st int. Congr. Ecol. Wageningen, p. 109–114
Branch G. M. (1975) Notes on the ecology of Patella concolor and Cellana capensis and the effect of human consumption on limpet populations. Zool. Afr. 10: 75–85
Branch, G. M. (1984) Competition between marine organisms: Ecological and evolutionary implications. Oceanogr. mar. biol. A. Rev. 22: 429–593
Castilla, J. C. (1981). Perspectivas de investigación en estructura y dinámica de comunidades intermareales rocosas de Chile Central. II Depredadores de alto nivel trófico. Medio Ambiente 5: 190–215
Castilla, J. C. (1986). Sigue existiendo la necesidad de establecer parques y reservas maritimas en Chile? Am. y Des., Vol II (2): 53–63
Castilla, J. C. (1988). Earthquake-caused coastal uplift and its effects on rocky intertidal kelp communities. Science, N.Y. 242: 440–443
Castilla, J. C., Bustamante, R. H. (1989). Human exclusion from rocky intertital of Las Cruces, central Chile: effects on Durvillaea antarctica (Phaeophyta, Durvilleales). Mar. Ecol. Prog. Ser. 50:203–214
Castilla, J. C., Durán L. R. (1985). Human exclusion from the rocky intertidal zone of central Chile: the effects on C. concholepas (Mollusca: Gastropoda: Muricidae). Oikos 45: 391–399
Catterall, C. P., Poinier I. R. (1987). The potential impact of human gathering on shellfish populations, with reference to some NE Australia intertidal flats. Oikos 50: 114–122
Connell, J. H., Sousa, W. P. (1983). On the evidence needed to judge ecological stability or persistence. Am. Nat. 121: 789–824
Durán, L. R., Castilla, J. C., Oliva, d. (1987) Intensity of human predation on rocky shores at Las Cruces, Central Chile. Envir. Conserv. 14: 143–149
Fairweather, P. G. (1988). Correlations of predatory whelks with intertidal prey at several scales of space and time. Mar. Ecol. Prog. Ser. 45: 237–243
Hawkins, S. J. (1981). The influence of season and barnacles on the algal colonization of Patella vulgata exclusion areas. J. mar. biol. Ass. U.K. 61: 1–15
Hockey, P. A. R., Bosman, A. L. (1986). Man as an intertidal predator in Transkei: disturbance, community convergence, and management of a natural food resource. Oikos 46: 3–14
Jara, H. F., Moreno, C. (1984). Herbivory and structure in a midlittoral rocky community: a case in Southern Chile. Ecology 65: 28–38
Jernakoff, P. (1985a). Temporal and small scale spatial variability of algal abundance on an intertidal rocky shore. Botanica Mar. 28: 145–154
Jernakoff, P. (1985b). Interactions between the limpet Patelloida latistrigata and algae on an intertidal rock platform. Mar. Ecol. Prog. Ser. 23: 71–78
Lewontin, R. C. (1989). The meaning of stability. In: Diversity and stability in ecological systems. Brookhaven Symp. Biol. N 22: 13–24
McGrath, D., King, P. A., Gosling, E. M. (1988). Evidence for the direct settlement of Mytilus edulis larvae on adult mussel beds. Mar. Ecol. Prog. Ser 47: 103–106
Moreno, C. A. (1986). Un resumen de las consecuencia ecológicas de la exclusión del hombre en la zona intermareal de Mehuin-Chile Estud. Oceanol. 5: 59–66
Moreno, C. A., Lunecke, K. M., Lepez, M. I. (1986). The response of an intertidal C. concholepas (Gastropoda) population to protection from Man in southern Chile and the effects on benthic sessile assemblages. Oikos 46: 359–364
Moreno, C. A., Sutherland, J. P., Jara, F. H. (1984). Man as a predator in the intertidal zone of southern Chile. Oikos 42: 155–160
Navarrete, S. A., Castilla, J. C. (1988). Facilitación entre competidores: efectos del tamaño de parche sobre la monopolización del sustrato primario en el intermareal rocoso. VII Jornadas de Ciencias del Mar, Talcahuano, Chile p. 47
Oliva, D., Castilla, J. C. (1986). The effect of human exclusion on the population structure of key-hole limpets F. crassa and F. limbata on the coast of Central Chile. Pubbl. Staz. zool. Napoli (I. Mar. Ecol.) 7: 201–217
Ortega, S. (1987). The effect of human predation on the size distribution of Siphonaria gigas (Mollusca, Pulmonata) on the Pacific coast of Costa Rica. Veliger 29 (3): 251–255
Paine, R. T. (1966). Food web complexity and species diversity. Am. Nat. 100: 65–76
Paine, R. T. (1971). A short term experimental investigation of resource partitioning in New Zealand rocky intertidal habitat. Ecology 52: 1096–1106
Paine, R. T. (1974). Intertidal community structure: Experimental studies on the relationship between a dominant competitor and its principal predator. Oecologia (Berl.) 15: 93–126
Paine, R. T. (1977). Controlled manipulations in the marine intertidal zone, and their contributions to ecological theory. In: Goulden, C. E. (ed.) The changing scenes in natural sciences 1776–1976. Academy Natural Sciences, Philadelphia (Spec. Publ.) 12: 245–270
Paine, R. T. (1980). Food webs: linkages, interaction strength and community infrastructure. J. Anim. Ecol. 49: 667–685
Paine, R. T. (1981). Barnacle ecology: is competition important? The forgotten roles of disturbance and predation. Paleobiology 7: 553–560
Paine, R. T., Castilla, J. C., Cancino, J. (1985). Perturbation and recovery patterns of starfish-dominated intertidal assemblages in Chile, New Zealand, and Washington State. Am. Nat. 125: 679–691
Peet, R. (1974). The measurement of species diversity. A. Rev. Ecol. Syst. 5: 285–307
Schoener, T. W. (1983). Field experiments on interspecific competition. Am. Nat. 122: 240–285
Seed, R. (1976). Ecology. In: Bayne, B. L. (ed.) Marine mussels: their ecology and physiology. Cambridge University Press, Cambridge
Siegfried, W. R., Hockey, P. A. R., Crowe, A. A. (1985). Exploitation and conservation of brown mussel stock by coastal people of Transker. Envir. Conserv. 12: 303–307
Slobodkin, L. B. (1961). Growth and regulation of animal populations. Holt, Rinehart & Winston, New York
Sokal, R. R., Rohlf, F. J. (1981). Biometry. Freeman Press, San Francisco
Southwood, T. R. E. (1978). Ecological Methods. Chapman and Hall, London
Suchanek, T. (1978). The ecology of Mytilus edulis L., in exposed rocky intertidal communities. J. exp. mar. Biol. Ecol. 31: 105–120
Sutherland, J. P. (1981). The fouling community at Beaufort, North Carolina: a study in stability. Am. Nat. 118: 499–519
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Communicated by O. Kinne, Oldendorf/Luhe
Please address all correspondence to J. C. Castilla, Department of Zoology, University of Washington, Seattle, Washington 98195, USA, until March 1990
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Durán, L.R., Castilla, J.C. Variation and persistence of the middle rocky intertidal community of central Chile, with and without human harvesting. Mar. Biol. 103, 555–562 (1989). https://doi.org/10.1007/BF00399588
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DOI: https://doi.org/10.1007/BF00399588