Geographic Patterns of Distribution and Ecological Niche of the Snake-necked Turtle Genus

Overview

Journal PeerJ

Specialties Biology
Environmental Health
General Medicine

Date 2024 Apr 1

PMID 38560463

Authors

Marcia M P Muller

Diego J Santana

Henrique C Costa

Karoline Ceron

Affiliations

Soon will be listed here.

Abstract

Biotic and abiotic factors play a crucial role in determining the distribution of species. These factors dictate the conditions that must be met for a species to thrive in a particular area. Sister species that present some degree of niche overlap can shed light on how they are distributed and coexist in their environment. This study aims to investigate the geographical distribution and ecological niche of the sister species of snake-necked turtles and . By analyzing their niche overlap, we aim to obtain a better understanding of how these two species coexist and which variables are determining their occurences. We applied species distribution modeling and compared the niches using the niche equivalence and similarity tests. Our findings show that the distribution of is most influenced by temperature seasonality and isothermality, while is most affected by the temperature seasonality, precipitation of warmest quarter and mean diurnal range. In addition, our results suggest that the niche expressed by retained ecological characteristics that can accurately predict the distribution, but the inverse is not true. In this sense, differences are not solely due to the geographic availability of environmental conditions but can reflect niche restrictions, such as competition.

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