Compensatory dynamics in zooplankton community responses to acidification: Measurement and mechanisms

被引:31
作者
Fischer, JM
Frost, TM
Ives, AR
机构
[1] Univ Wisconsin, Ctr Limnol, Madison, WI 53706 USA
[2] Univ Wisconsin, Dept Zool, Madison, WI 53706 USA
关键词
acidification; community ecology; compensatory dynamics; functional compensation; functional redundancy; zooplankton;
D O I
10.2307/3061012
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Previous studies indicate substantial variation in ecological responses to perturbation. In some cases, ecosystems are resilient to perturbation due to compensatory dynamics in which losses of sensitive species are offset by population increases of species that perform similar ecological functions. Here, we report a detailed evaluation of compensatory dynamics in zooplankton community responses to the experimental acidification of Little Rock Lake, Wisconsin, USA. We used a variance ratio to quantify compensatory dynamics in functional groups of zooplankton containing Species that use similar resources and are vulnerable to the same predators. We also used first-order autoregressive models to explore mechanisms driving the dynamics of each functional group, Our results indicate that responses of functional groups to acidification can be highly variable. Herbivorous copepods and medium-sized herbivorous cladocerans exhibited significant compensatory dynamics in response to acidification, whereas other functional groups, exhibited independent or synchronous dynamics. First-order autoregressive models indicated that groups exhibiting compensatory dynamics contained both acid-tolerant and acid-sensitive species that competed. In contrast, groups that contained only acid-sensitive or acid-tolerant species exhibited more independent or synchronous dynamics. Overall, our study highlights the combined roles of sensitivity to environmental perturbation and species interactions in determining the extent of compensatory dynamics in zooplankton functional group responses to acidification.
引用
收藏
页码:1060 / 1072
页数:13
相关论文
共 67 条
[1]   OMNIVORY IN CYCLOPOID COPEPODS - COMPARISONS OF ALGAE AND INVERTEBRATES AS FOOD FOR 3, DIFFERENTLY SIZED SPECIES [J].
ADRIAN, R ;
FROST, TM .
JOURNAL OF PLANKTON RESEARCH, 1993, 15 (06) :643-658
[2]   COMPARATIVE FEEDING ECOLOGY OF TROPOCYCLOPS-PRASINUS-MEXICANUS (COPEPODA, CYCLOPOIDA) [J].
ADRIAN, R ;
FROST, TM .
JOURNAL OF PLANKTON RESEARCH, 1992, 14 (10) :1369-1382
[3]   NEW LOOK AT STATISTICAL-MODEL IDENTIFICATION [J].
AKAIKE, H .
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 1974, AC19 (06) :716-723
[4]  
Akaike H., 1973, 2 INT S INFORM THEOR, P267, DOI [DOI 10.1007/978-1-4612-1694-0_15, 10.1007/978-1-4612-1694-0_15]
[5]   COMPETITION AND RELATIVE ABUNDANCES OF 2 CLADOCERANS [J].
ALLAN, JD .
ECOLOGY, 1973, 54 (03) :484-498
[6]  
Box GEP., 1978, Statistics for experimenters
[7]   EXPERIMENTAL ACIDIFICATION OF LITTLE-ROCK LAKE, WISCONSIN - CHEMICAL AND BIOLOGICAL CHANGES OVER THE PH RANGE 6.1 TO 4.7 [J].
BREZONIK, PL ;
EATON, JG ;
FROST, TM ;
GARRISON, PJ ;
KRATZ, TK ;
MACH, CE ;
MCCORMICK, JH ;
PERRY, JA ;
ROSE, WA ;
SAMPSON, CJ ;
SHELLEY, BCL ;
SWENSON, WA ;
WEBSTER, KE .
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES, 1993, 50 (05) :1101-1121
[8]   PREDATION BODY SIZE AND COMPOSITION OF PLANKTON [J].
BROOKS, JL ;
DODSON, SI .
SCIENCE, 1965, 150 (3692) :28-&
[9]   LABORATORY ACIDIFICATION OF A CRUSTACEAN ZOOPLANKTON ASSEMBLAGE FROM A ROCKY-MOUNTAIN SUBALPINE LAKE (USA) [J].
BRUNS, DA ;
WIERSMA, GB .
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 1988, 7 (10) :807-814
[10]   Chlorophyll variability, nutrient input, and grazing: Evidence from whole-lake experiments [J].
Carpenter, SR ;
Kitchell, JF ;
Cottingham, KL ;
Schindler, DE ;
Christensen, DL ;
Post, DM ;
Voichick, N .
ECOLOGY, 1996, 77 (03) :725-735