Anuran responses to urbanization:evaluating life history traits of Rhinella arenarum in urban wetlands  

作　　者：Pollo Favio Bionda Clarisa Baraquet Mariana Otero Manuel Martino Adolfo Grenat Pablo 

机构地区：[1]Ecología,Departamento de Ciencias Naturales,Facultad de Ciencias Exactas,Físico-Químicas y Naturales,Universidad Nacional de RíoCuarto,Ruta Nacional N°36-km 601,X5804BYA,Río Cuarto,Córdoba,Argentina [2]Instituto de Ciencias de la Tierra,Biodiversidad y Ambiente(ICBIA),UNRC-CONICET,Ruta Nacional N°36-km 601,X5804BYA,Río Cuarto,Argentina

出　　处：《Current Zoology》2025年第2期233-242,共10页动物学报(英文版)

基　　金：Financial support was provided by Secretaría de Cienciay Técnica-Universidad Nacional de Río Cuarto(SECyTUNRC,Grant PPI 18/C416);Fondo para la Investigación Científca y Tecnológica(FONCyT,Grant PICT BIDPICT 0981-2018;2530-2019).

摘　　要：Wetlands are unique ecological environments capable of harboring high biodiversity.However,urbanization can degrade,eliminate,or transformthese habitats.Although amphibians utilize habitats created by humans in urban landscapes,few studies have investigated the infuence of thehabitat quality on the life history of anurans.We assessed life history traits such as snout-vent length(SVL),body condition,and reproductiveinvestment in the South American common toad Rhinella arenarum,to determine whether urbanization is harmful or benefcial to this species.We sampled wetlands with different levels of urbanization in Río Cuarto city,Córdoba,Argentina.We recorded males with lower SVL in mediumurbanized wetlands and those with the highest SVL in both low and high urbanization categories,similar to what was found for body conditionswith males with low body conditions inhabiting wetlands with a medium degree of urbanization.In females,lower SVL was recorded in mediumurbanization and highest SVL in high and low urbanization.It is observed that females recorded in highly urbanized wetlands have a very lowbody condition.The reproductive investment parameters were not signifcantly different,but we observed an association between a greaternumber of eggs and clutch size with wetlands of low urbanization.These results show a variability of responses of R.arenarum to urbanization,which could be due to phenotypic plasticity in its life history parameters,allowing it to inhabit urban areas.Continuous monitoring of the speciesin these wetlands is needed to determine if these biological responses are temporary or persistent.

关 键 词：POND reproductive investment South American common toad URBANIZATION 

分 类 号：Q958[生物学—动物学]