气候变化领域集成服务门户(CCPortal): Seasonal effects on the potential spatial distribution of Amazonian migratory catfishes

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DOI	10.1007/s11160-024-09862-2
	Seasonal effects on the potential spatial distribution of Amazonian migratory catfishes
	Alvarez, Facundo; Freitas, Tiago Magalhaes da Silva; Begot, Tiago Octavio; Prudente, Bruno da Silveira; Loyola-Bartra, Omar; Paiva Silva, Daniel
发表日期	2024
ISSN	0960-3166
EISSN	1573-5184
英文摘要	The Amazon basin, spanning approximately 540,000 km2, exhibits distinct fluviometric surfaces that differentiate between the dry and rainy seasons. This seasonality, along with hydrological connectivity and the creation of new habitats during the rainy season, significantly promotes the migration, reproduction, and feeding of potamodromous fishes. To estimate the realized niches of species, species distribution models (SDMs) employ the extrapolation of environmental predictors and species occurrence data. Our objective was to compare the spatial distribution of migratory fish species in the Amazon basin using SDMs based on variables characterizing the dry season, rainy season, and a combination of both. All evaluated treatments demonstrated high performance and exhibited different distribution ranges in the applied SDMs, particularly when combining environmental variables with occurrence data during the rainy season. These findings support the hypothesis that spatial distribution is influenced by seasonality. The increased fluviometric surface and enhanced connectivity of the rainy season favor both longitudinal and lateral migrations of Amazonian migratory catfishes. Moreover, the spatial distribution reveals four critical spatial overlap (CSO) regions with higher population densities regardless of the season. These CSOs primarily coincide with the Amazon alluvial plain, which exhibits the highest rates of endemism, species richness, and abundance of organisms. Considering the discontinuous and heterogeneous nature of fluviometry when performing niche modeling processes is pivotal, although SDMs applied in the Amazon generally ignore such regional seasonality.
英文关键词	Dry; Rainy; Fish ecology; Migration; Species distribution models
语种	英语
WOS研究方向	Fisheries ; Marine & Freshwater Biology
WOS类目	Fisheries ; Marine & Freshwater Biology
WOS记录号	WOS:001215583800002
来源期刊	REVIEWS IN FISH BIOLOGY AND FISHERIES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296568
作者单位	Universidade Federal do Maranhao; Universidade Federal do Para; Universidade Federal do Para; Universidade Federal Rural da Amazonia (UFRA); Universidade Federal de Mato Grosso; Instituto Federal Goiano
推荐引用方式 GB/T 7714	Alvarez, Facundo,Freitas, Tiago Magalhaes da Silva,Begot, Tiago Octavio,et al. Seasonal effects on the potential spatial distribution of Amazonian migratory catfishes[J],2024.
APA	Alvarez, Facundo,Freitas, Tiago Magalhaes da Silva,Begot, Tiago Octavio,Prudente, Bruno da Silveira,Loyola-Bartra, Omar,&Paiva Silva, Daniel.(2024).Seasonal effects on the potential spatial distribution of Amazonian migratory catfishes.REVIEWS IN FISH BIOLOGY AND FISHERIES.
MLA	Alvarez, Facundo,et al."Seasonal effects on the potential spatial distribution of Amazonian migratory catfishes".REVIEWS IN FISH BIOLOGY AND FISHERIES (2024).