Understanding the Effects of Climate Change on the Distributional Range of Plateau Fish: A Case Study of Species Endemic to the Hexi River System in the Qinghai–Tibetan Plateau DOI Creative Commons
Zhaosong Chen,

Liuyang Chen,

Ziwang Wang

et al.

Diversity, Journal Year: 2022, Volume and Issue: 14(10), P. 877 - 877

Published: Oct. 18, 2022

Prediction of species’ potentially suitable distribution areas and their range shifts under future climate change has long been the focus macroecology biogeography. Gymnocypris chilianensis Schizothoracinae Triplophysa hsutschouensis are isolated to Shiyang, Heihe, Shule Rivers Hexi River system, listed from east west, along northeastern part Qinghai–Tibetan Plateau (QTP). This spatial provides a valuable set conditions for investigating patterns habitat suitability potential impacts accelerated plateau on endemic fish species. Here, we employed maximum entropy (MaxEnt) model first evaluate habitats two species identify primary impact factors current based occurrence records environmental variables; then, predicted changes in centers representative concentration pathways (RCPs), 2.6 8.5, (2050 2070). The results showed that annual precipitation altitude were most important predicting G. T. hsutschouensis. experienced sequential westward decrease Shiyang towards Heihe conditions. Under changes, geographical concentrated eastward River, area ancestral origins. Suitable shifted higher areas. Additionally, greater reduction shift compared These findings provide empirical evidence QTP severe consequences populations with restricted habitats. study demonstrates different have similarities differences responses change. Our also highlight effects must be incorporated into integrated conservation plans its adjacent

Language: Английский

Historical and dispersal processes drive community assembly of multiple aquatic taxa in glacierized catchments in the Qinghai-Tibet plateau DOI
Zhengfei Li, Huan Zhu, Jorge García–Girón

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 251, P. 118746 - 118746

Published: March 19, 2024

Language: Английский

Citations

8
Dispersal Limitation Dominates Riverine Fish Communities in the Areas of the Water Diversion Project in the Western Sichuan Plateau, China DOI Creative Commons
Tao Chang, Zheng Gong,

Kunyu Shang

et al.

Animals, Journal Year: 2025, Volume and Issue: 15(5), P. 730 - 730

Published: March 4, 2025

The riverine fish species are highly vulnerable and responsive to large-scale water diversion projects. These adverse impacts more pronounced in the plateau river ecosystems, which may change environmental conditions of habitats community structure. We investigated effects various factors on diversity seven rivers Western Sichuan Plateau, is planned area China's South-to-North Water Diversion Project. Twenty-two species, including eight exotic were collected during September 2023 (Autumn) May 2024 (Spring). communities exhibited no significant difference between seasons but had prominent variations among different rivers. heterogeneity was significantly positively correlated with geographical distance sampling sites (based a projected coordinate system). Furthermore, canonical correspondence analysis (CCA) illustrated that altitude contributed distribution than other physicochemical factors, such as channel width, conductivity, temperature. Rivers at low altitudes likely be invasion fish. Our results demonstrated dispersal limitation by altitudinal gradient primary regulatory spatial differentiation study area, reflected high dependence local habitats. As project implemented, attention expected paid protecting regime shifts communities. Additionally, risk assessment biological under inter-basin transfers human activities should carried out soon possible.

Language: Английский

Citations

0
Diversity and Some Biological Aspects of Fishes From a River in the National Park of Ethiopia DOI Creative Commons
Assefa Tessema Tecklie,

Wondoson Mekonen Workneh

Journal of Applied Ichthyology, Journal Year: 2025, Volume and Issue: 2025(1)

Published: Jan. 1, 2025

The Denkoro River is the largest river in Borena Sayint National Park (BSNP) of Ethiopia. Many studies have been conducted on terrestrial biodiversity park. However, there are no baseline data fish Therefore, this study aimed to assess diversity, determine biology dominant fishes, and compile data. Fish specimens were collected using gillnets (4, 6, 8, 10, 12 cm stretched mesh sizes), monofilaments (5, 15, 20 mm size), hook lines. samples wet (September) dry (December) seasons, 2022. A total 398 from three sites both seasons. Five species, Labeobarbus intermedius, Garra dembecha, Clarias gariepinus, beso , Oreochromis niloticus identified river. diversities (H′) species Wachau, Buke, Kernemariam season 1.45, 0.95, 0.64, respectively. During season, diversity was lower than that with Shannon indices 1.33, 1.18, 0.93 at sites, L. intermedius most abundant 42.9% catch. length–weight relationships followed a curvilinear pattern, described by equations TW = 0.005TL 3.12 0.01TL 2.94 In all females more numerous males statistically significant (Chi‐square, p < 0.05). For sustainable conservation development, further research fishing activities, feeding habits, needed. Important management measures such as regulated habitat restoration, spawning ground protection should be performed area.

Language: Английский

Citations

0
Multiple facets of diversity reveal different patterns and processes in aquatic arthropod communities across the world's most extreme high‐altitude treasure DOI
Junqian Zhang, Zhengfei Li, Jorge García–Girón

et al.

Insect Conservation and Diversity, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 14, 2024

Abstract Revealing the mechanisms underlying community organization has long been a central interest for ecologists and biogeographers. Recent findings have suggested that different dimensions of biodiversity may be shaped by contrasting ecological processes, offering complementary insights about assembly. However, studies integrating multiple diversity facets across Qinghai‐Tibetan Plateau (QTP) remain insufficient. We combined analytical frameworks to unravel patterns (taxonomic, functional phylogenetic) correlates (local environment, land use dispersal pathways) aquatic arthropod in lotic (stream) lentic (wetland) ecosystems QTP. observed strong phylogenetic signals most traits, pointing influence evolutionary processes on these faunas. Null models indicated structure streams wetlands was mostly result random draws from regional species pool. The prevalence stochasticity likely associated with interplay paleogeographical history, extremely harsh environmental conditions at high elevations subsequent impoverishment some also exhibited overdispersion clustering, emphasizing potential importance competitive exclusion habitat filtering, respectively. Variation partitioning further revealed both filtering limitation accounted spatial variation measures, local environment overriding effects space catchment use. Overall, this study improves our understanding environmentally extreme alpine catchments, broad implications conservation management one world’s important high‐altitude treasures.

Language: Английский

Citations

0
Understanding the Effects of Climate Change on the Distributional Range of Plateau Fish: A Case Study of Species Endemic to the Hexi River System in the Qinghai–Tibetan Plateau DOI Creative Commons
Zhaosong Chen,

Liuyang Chen,

Ziwang Wang

et al.

Diversity, Journal Year: 2022, Volume and Issue: 14(10), P. 877 - 877

Published: Oct. 18, 2022

Prediction of species’ potentially suitable distribution areas and their range shifts under future climate change has long been the focus macroecology biogeography. Gymnocypris chilianensis Schizothoracinae Triplophysa hsutschouensis are isolated to Shiyang, Heihe, Shule Rivers Hexi River system, listed from east west, along northeastern part Qinghai–Tibetan Plateau (QTP). This spatial provides a valuable set conditions for investigating patterns habitat suitability potential impacts accelerated plateau on endemic fish species. Here, we employed maximum entropy (MaxEnt) model first evaluate habitats two species identify primary impact factors current based occurrence records environmental variables; then, predicted changes in centers representative concentration pathways (RCPs), 2.6 8.5, (2050 2070). The results showed that annual precipitation altitude were most important predicting G. T. hsutschouensis. experienced sequential westward decrease Shiyang towards Heihe conditions. Under changes, geographical concentrated eastward River, area ancestral origins. Suitable shifted higher areas. Additionally, greater reduction shift compared These findings provide empirical evidence QTP severe consequences populations with restricted habitats. study demonstrates different have similarities differences responses change. Our also highlight effects must be incorporated into integrated conservation plans its adjacent

Language: Английский

Citations

2