干旱区生态环境知识资源中心(Arid): Comparing individual raptor species and coarse taxonomic groups as biodiversity surrogates in desert ecosystems

Arid

DOI	10.1007/s10531-019-01721-y
	Comparing individual raptor species and coarse taxonomic groups as biodiversity surrogates in desert ecosystems
	Rodriguez-Estrella, Ricardo 1,4; Estrada, Christian G.1; Ticul Alvarez-Castaneda, Sergio 2; Ferrer-Sanchez, Yarelys 3
通讯作者	Rodriguez-Estrella, Ricardo
来源期刊	BIODIVERSITY AND CONSERVATION
ISSN	0960-3115
EISSN	1572-9710
出版年	2019
卷号	28 期号:5 页码:1225-1244
英文摘要	Prioritizing biodiversity conservation strategies is urgently needed. Surrogate species have been used for that purpose as a means to lower costs/effort to assess representation of other species important for conservation planning. Such strategy should include multiple species and habitats within a given landscape or geographic area. The use of surrogates provides an appealing shortcut to monitoring biodiversity as it enables an efficient use of limited resources. As a group, raptors feed on a very wide range of prey sizes and, therefore, on a high diversity of prey species, which should improve their surrogacy complementarity. The aim of this paper is to identify a suitable approach that can be used as an efficient surrogate of regional diversity in desert ecosystems. First, through assemblageconcordance analysis we tested two alternative approaches either using: (a) a single raptor species or (b) the entire group of raptor species as surrogates of biodiversity. Second, through correlation analysis we also tested whether the species richness of single target groups (raptors, other birds, reptiles, mammals and plants), or of two-group combinations, was correlated with the pooled species richness of the remaining groups, and then determine each of the taxonomic groups as surrogates of the entire biodiversity at the regional scale. Four single raptor species showed significant concordance with the entire bird community but, overall, most comparisons between single raptor species and other taxonomic groups failed to show any consistent correlation. A remarkable finding from the single species approach was that the strongest significant positive association was that found between caracara C. cheriway and bird species richness. This raptor is a habitat and diet generalist, thus contradicting the hypothesis that specialist species make the best bioindicators. Raptor species were significantly associated with non-raptor birds, vegetation and rodents, but not with the mammal or reptile communities. Plant species richness showed a statistically significant concordance with most of the other groups except for reptiles. Reptiles were the group that showed less concordance with the others. Between-groups comparisons showed that the species richness was strongly correlated between birds and plants, followed by between raptors and birds; correlations between birds and mammals, reptiles and mammals and raptors and plants were weak albeit statistically significant. Species richness of some individual groups, namely other birds, plants and mammals, were significantly correlated with their corresponding remaining richness values. The pooled species richness of two-group combinations were strongly correlated for raptors and other birds, raptors and plants, other birds and mammals, and reptiles and plants, and their corresponding remaining richness. We propose an approach using the combined species richness of two taxonomic groups given the high, statistically significant correlation with their corresponding remaining richness in the Baja California peninsula and possibly in other desert ecosystems too.
英文关键词	Biodiversity surrogates Raptors Taxonomic groups Assemblage concordance Species richness correlations Desert ecosystem
类型	Article
语种	英语
国家	Mexico ; Ecuador ; USA
收录类别	SCI-E
WOS记录号	WOS:000460094500012
WOS关键词	TOP PREDATORS ; SPATIAL AUTOCORRELATION ; CORRELATION-COEFFICIENT ; SITE SELECTION ; WOODY PLANT ; INDICATORS ; RICHNESS ; CONSERVATION ; ASSEMBLAGES ; CONCORDANCE
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214594
作者单位	1.Inst Politecn Nacl, Lab Spatial Ecol & Conservat, Ctr Invest Biol Noroeste, 195 Playa Palo de Santa Rita Sur, La Paz 23096, Baja Calif Sur, Mexico; 2.Ctr Invest Biol Noroeste, La Paz, Baja Calif Sur, Mexico; 3.Univ Tecn Estatal Quevedo, Ave Quito Km 1 1-2 Via Santo Domingo de los Tsach, Quevedo, Los Rios, Ecuador; 4.Univ Arizona, Sch Nat Resources & Environm, Tucson, AZ 85721 USA
推荐引用方式 GB/T 7714	Rodriguez-Estrella, Ricardo,Estrada, Christian G.,Ticul Alvarez-Castaneda, Sergio,et al. Comparing individual raptor species and coarse taxonomic groups as biodiversity surrogates in desert ecosystems[J]. University of Arizona,2019,28(5):1225-1244.
APA	Rodriguez-Estrella, Ricardo,Estrada, Christian G.,Ticul Alvarez-Castaneda, Sergio,&Ferrer-Sanchez, Yarelys.(2019).Comparing individual raptor species and coarse taxonomic groups as biodiversity surrogates in desert ecosystems.BIODIVERSITY AND CONSERVATION,28(5),1225-1244.
MLA	Rodriguez-Estrella, Ricardo,et al."Comparing individual raptor species and coarse taxonomic groups as biodiversity surrogates in desert ecosystems".BIODIVERSITY AND CONSERVATION 28.5(2019):1225-1244.