Species abundance and the distribution of specialization in host-parasite interaction networks

被引:188
作者
Vázquez, DP
Poulin, R
Krasnov, BR
Shenbrot, GI
机构
[1] Univ Calif Santa Barbara, Natl Ctr Ecol Anal & Synth, Santa Barbara, CA 93101 USA
[2] Ctr Ecol Fonctionnelle & Evolut, UMR 5175, F-34293 Montpellier, France
[3] Univ Otago, Dept Zool, Dunedin, New Zealand
[4] Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Mitrani Dept Desert Ecol, IL-80600 Mizpe Ramon, Israel
[5] Ben Gurion Univ Negev, Ramon Sci Ctr, IL-80600 Mizpe Ramon, Israel
关键词
abundance; asymmetric specialization; host-parasite interactions; network structure; null models;
D O I
10.1111/j.1365-2656.2005.00992.x
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
1. Recent studies have evaluated the distribution of specialization in species interaction networks. Species abundance patterns have been hypothesized to determine observed topological patterns. We evaluate this hypothesis in the context of host-parasite interaction networks. 2. We used two independent series of data sets, one consisting of data for seven sites describing interactions between freshwater fish and their metazoan parasites and another consisting of data for 25 localities describing interactions between fleas and their mammalian hosts. We evaluated the influence of species abundance patterns on the distribution of specialization in these host-parasite interaction networks with the aid of null models. 3. In parallel with recent studies of plant-animal mutualistic networks, our analyses suggest that host-parasite interactions in these systems are highly asymmetric: specialist parasites tend to interact with hosts with high parasite richness, whereas hosts with low parasite richness tend to interact mainly with generalist parasites. 4. The observed distribution of specialization was predicted by a null model that assumed that species-specific probabilities of being assigned a link during the randomization process were roughly proportional to their relative abundance. Thus, abundant hosts tend to harbour richer parasite faunas, with a high proportion of rare specialists.
引用
收藏
页码:946 / 955
页数:10
相关论文
共 65 条
[1]  
ALANIA II, 1964, P ARMENIAN ANTIPLAGU, V3, P407
[2]  
Allred D. M., 1968, Great Basin Naturalist, V28, P73
[3]  
[Anonymous], SMALL MAMMALS NO FAR
[4]  
[Anonymous], 1994, The coevolutionary process
[6]   PARASITES OF FISHES OF AISHIHIK AND STEVENS LAKES, YUKON-TERRITORY, AND POTENTIAL CONSEQUENCES OF THEIR INTERLAKE TRANSFER THROUGH A PROPOSED WATER DIVERSION FOR HYDRO-ELECTRICAL PURPOSES [J].
ARTHUR, JR ;
MARGOLIS, L ;
ARAI, HP .
JOURNAL OF THE FISHERIES RESEARCH BOARD OF CANADA, 1976, 33 (11) :2489-2499
[7]   THE MEASURE OF ORDER AND DISORDER IN THE DISTRIBUTION OF SPECIES IN FRAGMENTED HABITAT [J].
ATMAR, W ;
PATTERSON, BD .
OECOLOGIA, 1993, 96 (03) :373-382
[8]  
BANGHAM R. V., 1955, AMER MIDLAND NAT, V53, P184, DOI 10.2307/2422308
[9]   The nested assembly of plant-animal mutualistic networks [J].
Bascompte, J ;
Jordano, P ;
Melián, CJ ;
Olesen, JM .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2003, 100 (16) :9383-9387
[10]   ON THE RELATIONSHIP BETWEEN ABUNDANCE AND DISTRIBUTION OF SPECIES [J].
BROWN, JH .
AMERICAN NATURALIST, 1984, 124 (02) :255-279