Interactive effects of obligate scavengers and scavenger community richness on lagomorph carcass consumption patterns

被引：31

作者：

Sebastian-Gonzalez, Esther ^{[1
,2
]}

Antonio Sanchez-Zapata, Jose ^{[1
]}

Antonio Donazar, Jose ^{[2
]}

Selva, Nuria ^{[3
]}

Cortes-Avizanda, Ainara ^{[2
]}

Hiraldo, Fernando ^{[2
]}

Blazquez, Miguel ^{[1
]}

Botella, Francisco ^{[1
]}

Moleon, Marcos ^{[1
,4
]}

机构：

[1] Univ Miguel Hernandez, Dept Biol Aplicada, Alicante, Spain

[2] CSIC, Estn Biol Donana, Dept Biol Conservac, E-41080 Seville, Spain

[3] Polish Acad Sci, Inst Nat Conservat, Krakow, Poland

[4] Univ Witwatersrand, Sch Anim Plant & Environm Sci, Ctr African Ecol, Johannesburg, South Africa

来源：

IBIS | 2013年 / 155卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

carrion; community structure; consumption time; detection time; Lepus spp; nestedness; Oryctolagus cuniculus; small carcass; vulture; NESTEDNESS; BIODIVERSITY; DIVERSITY; GUILD; MODEL;

D O I：

10.1111/ibi.12079

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Carrion consumption patterns in vertebrate scavenger communities may be influenced by several interacting factors. We assessed the effects of the number of scavenger species and the presence of obligate scavengers (vultures) on carcass detection and consumption times, and the structure (nestedness) of the scavenger assemblage by exploring consumption patterns of lagomorph carcasses provided experimentally. Carcass detection and consumption times were strongly inversely related to vulture presence, whereas scavenger richness had a low contribution, except when interacting with vulture presence. However, none of the scavenger communities presented a nested pattern, perhaps because of the small size of lagomorphs, which prevents large numbers of scavengers and interspecific interactions occurring at one carcass. Our results suggest that scavenger species richness, especially the presence of vultures, increases scavenging efficiency.

引用

页码：881 / 885

页数：5

共 21 条

[1] A consistent metric for nestedness analysis in ecological systems: reconciling concept and measurement [J].

Almeida-Neto, Mario ;

Guimaraes, Paulo ;

Guimaraes, Paulo R., Jr. ;

Loyola, Rafael D. ;

Ulrich, Werner .

OIKOS, 2008, 117 (08) :1227-1239

[2] Spatio-temporal segregation of facultative avian scavengers at ungulate carcasses [J].

Blazquez, Miguel ;

Sanchez-Zapata, Jose A. ;

Botella, Francisco ;

Carrete, Martina ;

Eguia, Sergio .

ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY, 2009, 35 (05) :645-650

[3] Geographic variation in patterns of nestedness among local stream fish assemblages in Virginia [J].

Cook, RR ;

Angermeier, PL ;

Finn, DS ;

Poff, NL ;

Krueger, KL .

OECOLOGIA, 2004, 140 (04) :639-649

[4] Resource unpredictability promotes species diversity and coexistence in an avian scavenger guild: a field experiment [J].

Cortes-Avizanda, A. ;

Jovani, R. ;

Carrete, M. ;

Donazar, J. A. .

ECOLOGY, 2012, 93 (12) :2570-2579

[5] Hierarchical, multi-scale decomposition of species-environment relationships [J].

Cushman, SA ;

McGarigal, K .

LANDSCAPE ECOLOGY, 2002, 17 (07) :637-646

[6] Scavenging by vertebrates: behavioral, ecological, and evolutionary perspectives on an important energy transfer pathway in terrestrial ecosystems [J].

DeVault, TL ;

Rhodes, OE ;

Shivik, JA .

OIKOS, 2003, 102 (02) :225-234

[7]

Gotelli NJ, 2002, ECOLOGY, V83, P2091, DOI 10.1890/0012-9658(2002)083[2091:SCOAMA]2.0.CO

[8]

[9] Predator diversity and ecosystem functioning: Density modifies the effect of resource partitioning [J].

Griffin, John N. ;

De la Haye, Kate L. ;

Hawkins, Stephen J. ;

Thompson, Richard C. ;

Jenkins, Stuart R. .

ECOLOGY, 2008, 89 (02) :298-305

[10] Biodiversity and ecosystem multifunctionality [J].

Hector, Andy ;

Bagchi, Robert .

NATURE, 2007, 448 (7150) :188-U6

← 1 2 3 →