干旱区生态环境知识资源中心(Arid): Factors determining the spatial and temporal variation in the abundance of Pithecopus nordestinus tadpoles (Anura: Phyllomedusidae ) in a semi-arid Brazilian environment

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	Factors determining the spatial and temporal variation in the abundance of Pithecopus nordestinus tadpoles (Anura: Phyllomedusidae ) in a semi-arid Brazilian environment
	Santos Caldas, Francis Luiz 1; da Silva, Bruno Duarte 2; De-Carvalho, Crizanto Brito 2; Santana, Daniel Oliveira 3; Almeida Gomes, Fabiola Fonseca 2; de Queiroga Cavalcanti, Lucas Barbosa 3; dos Santos, Rafael Alves 2; Faria, Renato Gomes 1,2
通讯作者	Santos Caldas, Francis Luiz
来源期刊	SALAMANDRA
ISSN	0036-3375
出版年	2019
卷号	55 期号:4 页码:253-263
英文摘要	Microhabitat choice by tadpoles is related to several physical or biological characteristics, and variations in these factors have a direct influence on their distribution and abundance at different scales (e.g. time, space). Our work sought to investigate how Pithecopus nordestinus tadpoles use water bodies at a Caatinga site and quantify how biotic and abiotic variables affects the occurrence of this tadpole species. We developed the study in the Protected Area Monumento Natural Grota do Angico/Sergipe, from December 2009 to November zoio and collected samples (408 plots) using a throw trap. In addition to the tadpoles collected in the plots, we quantified five variables (competitors, percentage of emergent and aquatic vegetation, predators and depth) and acquired variation of some data throughout the year (size, maximum depth and hydroperiod) for each water bodies. Tadpoles were found in lentic water bodies that fit their habits and that were also suitable for mating by their adult relates. Most of the studied environments maintained water throughout the period of the study, with P. nordestinus tadpoles being present from April to October, with abundance peak both in July and May. The absence of P. nordestinus tadpoles from February to March may allow the establishment of other species during this period, minimizing the competition between them. The larvae of P. nordestinus showed an aggregate distribution (I-d > 1) in most of the water bodies throughout the year, which may reduce the predation. This could explain the positive relation that was found between the tadpole abundance and the predator's presence. The aggregations were not intensified by the reduction of water bodies as the drought progressed. Among the ecological variables, the presence of competitors (other tadpoles) and the percentage of emergent and aquatic vegetation did not favor tadpole abundance. Interspecific competition can drastically reduce the amount of resources and damage metamorphosis in periods when there is still water regularity in the environments. Branching and abundant vegetation can damage the habit of P. nordestinus tadpoles, which are nektonic suspension-raspers, requiring that this portion of the space is unoccupied.
英文关键词	Amphibia anurans larvae aggregations spatial resources temporal resources Caatinga predation competition throw trap
类型	Article
语种	英语
国家	Brazil
收录类别	SCI-E
WOS记录号	WOS:000494282700004
WOS关键词	DEVELOPMENTAL PLASTICITY ; MICROHABITAT SELECTION ; AGGREGATION BEHAVIOR ; REPRODUCTIVE MODES ; SPECIES RICHNESS ; BUFO-TERRESTRIS ; MIRANDA-RIBEIRO ; ATLANTIC FOREST ; PREDATION RISK ; POND
WOS类目	Marine & Freshwater Biology ; Zoology
WOS研究方向	Marine & Freshwater Biology ; Zoology
EI主题词	2019-10-30
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310383
作者单位	1.Univ Fed Sergipe, Dept Biol, Lab Repteis & Anfibios, BR-49100000 Sao Cristovao, SE, Brazil; 2.Univ Fed Sergipe, Grad Program Ecol & Conservat, BR-49100000 Sao Cristovao, SE, Brazil; 3.Univ Fed Paraiba, Grad Program Biol Sci Zool, BR-58051900 Joao Pessoa, Paraiba, Brazil
推荐引用方式 GB/T 7714	Santos Caldas, Francis Luiz,da Silva, Bruno Duarte,De-Carvalho, Crizanto Brito,et al. Factors determining the spatial and temporal variation in the abundance of Pithecopus nordestinus tadpoles (Anura: Phyllomedusidae ) in a semi-arid Brazilian environment[J],2019,55(4):253-263.
APA	Santos Caldas, Francis Luiz.,da Silva, Bruno Duarte.,De-Carvalho, Crizanto Brito.,Santana, Daniel Oliveira.,Almeida Gomes, Fabiola Fonseca.,...&Faria, Renato Gomes.(2019).Factors determining the spatial and temporal variation in the abundance of Pithecopus nordestinus tadpoles (Anura: Phyllomedusidae ) in a semi-arid Brazilian environment.SALAMANDRA,55(4),253-263.
MLA	Santos Caldas, Francis Luiz,et al."Factors determining the spatial and temporal variation in the abundance of Pithecopus nordestinus tadpoles (Anura: Phyllomedusidae ) in a semi-arid Brazilian environment".SALAMANDRA 55.4(2019):253-263.