Dietary overlap among ruminants, geese, and lemmings of Wrangel Island in summer

被引：5
作者：
Sheremetyev, I. S. [1 ]
Rozenfeld, S. B. [2 ]
Gruzdev, A. P. [3 ]
机构：
[1] Russian Acad Sci, Fed Sci Ctr East Asia Terr Biodivers, Far East Branch, Vladivostok 690022, Russia
[2] Russian Acad Sci, Severtsov Inst Ecol & Evolut, Moscow 119071, Russia
[3] Wrangel Isl State Nat Reserve, Pevek 689400, Chukchi Autonom, Russia
来源：
RUSSIAN JOURNAL OF ECOLOGY | 2017年 / 48卷 / 06期
关键词：
the Arctic; geese; lemmings; muskox; Late Quaternary extinctions; reindeer; REINDEER RANGIFER-TARANDUS; OX OVIBOS-MOSCHATUS; SNOW GOOSE; EXTINCTION; ABUNDANCE; ECOLOGY; MAMMALS; ANSER; SIZE;
D O I：
10.1134/S1067413617060091
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
Trends in the dynamics of herbivore community related to trophic competition in summer have been analyzed on Wrangel Island. The results show that the trophic spectra overlap considerably, resources are partitioned on the principle "weak competitors after strong competitors," and community dynamics in the absence of extermination depend on specific competitive advantages related to the width of food spectrum. We conclude that the dynamics of this insular community prior to the establishment of nature reserve on the island have been determined by human activities, as well as the structure of arctic herbivore communities in general.
引用
收藏
页码：532 / 538
页数：7
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