Amphibian richness along modified riparian areas of central Mexico:conservation priorities  

作　　者：Marco Tulio Oropeza‑Sánchez Ireri Suazo‑Ortuño Julieta Benítez‑Malvido Erandi Monroy‑Hernández Roberto Munguía‑Steyer 

机构地区：[1]Instituto de Investigaciones en Ecosistemas y Sustentabilidad(IIES),Universidad Nacional Autónoma de México,Antigua Carretera a Pátzcuaro 8701,CP 58190 Morelia,Michoacán,Mexico [2]Instituto de Investigaciones Sobre los Recursos Naturales(INIRENA),Universidad Michoacana de San Nicolás de Hidalgo,Av.San Juanito Itzícuaro S/N,CP 58330 Morelia,Michoacán,Mexico [3]Facultad de Estudios Superiores Iztacala(FES‑Iztacala),Universidad Nacional Autónoma de México,Av.de los Barrios No.1,CP 54090 Tlalnepantla de Baz,Estado de México,Mexico.

出　　处：《Ecological Processes》2022年第1期902-915,共14页生态过程（英文）

基　　金：This research was funded by the Comisión Nacional de Ciencia y Tecnología(CONACYT,number 259173)and Rufford Small Grant(27008-1);This study was part of the project“Efecto de la calidad del agua sobre parámetros poblacion-ales,fisiológicos y morfológicos de la salamandra de montaña(Ambystoma ordinarium)”Secretaría de Educación Pública/Consejo Nacional de Ciencia y Tecnología Ciencia Básica 2015-259173;MTOS obtained a scholarship from CONACyT(623120),Mexico.

摘　　要：Background:Land‑use change frequently affects faunistic populations and communities.To achieve successful conservation strategies,we need suitable information about species distribution and the causes of extinction risk.Many amphibian species depend on riparian vegetation to complete their life cycles.About 41%of amphibian species are globally threatened,and accurate estimations of population size,species richness and the identification of critical habitats are urgently needed worldwide.To evaluate the magnitude of changes in species richness and demography,estimations that include detection probability are necessary.In this study,we employed multi‑species occupancy models to estimate detection probability and the effect of land cover type(i.e.,cropland,artificial pasture,secondary and mature forest)in a 500‑m radius on the occupancy probability and richness of diurnal amphibians in 60 riparian zones in the state of Michoacán in central Mexico.Furthermore,we evaluated the potential of the endemic salamander Ambystoma ordinarium as a flagship species for the conservation of other native amphibian species.Results:We registered a total of 20 amphibian species in the diurnal assemblage,of which 10 species are considered at risk of extinction.We found that cropland was the most important land‑use type for explaining amphibian distribu‑tion in riparian zones,with negative effects on most amphibian species.We found no differences in species richness between zones with and without A.ordinarium.In riparian zones occupied by A.ordinarium,however,we found a higher number of species at risk of extinction.Conclusions:Our findings showed negative effects of croplands on the distribution of most amphibian species.The riparian zones are important for the maintenance of native diurnal amphibian communities and A.ordinarium can act as a flagship species for the conservation of threatened amphibian species.

关 键 词：Flagship species Habitat quality Occupancy models SALAMANDERS Threatened species 

分 类 号：Q95[生物学—动物学]