Výsledky vyhledávání - "Roser Casas‐Mulet"

Akademický článek

Determining Riverine Surface Roughness at Fluvial Mesohabitat Level and Its Influence on UAV-Based Thermal Imaging Accuracy

Autor: Johannes Kuhn, Joachim Pander, Luis Habersetzer, Roser Casas-Mulet, Juergen Geist

Publikováno v: Remote Sensing, Vol 16, Iss 10, p 1674 (2024)

Water surface roughness (SR) is a highly relevant parameter governing data reliability in remote sensing applications, yet lacking appropriate methodology in riverine habitats. In order to assess thermal accuracy linked to SR of thermal imaging deriv

Externí odkaz: https://doaj.org/article/c1a79a354d1249a799773c13702834c8

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Akademický článek

Contribution of a groundwater-influenced hinterland drainage system to the restoration of salmonid spawning grounds at the upper river Danube

Autor: Joachim Pander, Roser Casas-Mulet, Juergen Geist

Publikováno v: Frontiers in Environmental Science, Vol 11 (2023)

Groundwater-influenced ditches, so called hinterland drainage systems (HDS), accompany many heavily modified water bodies (HMWBs). Herein, we evaluate the usefulness of including HDS as functional habitats in river restoration approaches by assessing

Externí odkaz: https://doaj.org/article/64bd04fe97b7495aa86eda238f914acd

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Akademický článek

Effects of Stream Thermal Variability on Macroinvertebrate Community: Emphasis on Native Versus Non-Native Gammarid Species

Autor: Joachim Pander, Luis Habersetzer, Roser Casas-Mulet, Juergen Geist

Publikováno v: Frontiers in Environmental Science, Vol 10 (2022)

An increase in river water temperatures is being detected worldwide, with some predictions of an up to 4°C rise by 2050. Such stream temperature increase is likely to affect aquatic communities, with predicted declines and range shifts of cold steno

Externí odkaz: https://doaj.org/article/3f7a0b90b99449cd822bfd3699b31aba

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Akademický článek

Challenges to Implementing Environmental-DNA Monitoring in Namibia

Autor: Iain Perry, Ifan B. Jâms, Roser Casas-Mulet, Josefina Hamutoko, Angela Marchbank, Selma Lendelvo, Erold Naomab, Benjamin Mapani, Simon Creer, Heike Wanke, Isabelle Durance, Peter Kille

Publikováno v: Frontiers in Environmental Science, Vol 9 (2022)

By identifying fragments of DNA in the environment, eDNA approaches present a promising tool for monitoring biodiversity in a cost-effective way. This is particularly pertinent for countries where traditional morphological monitoring has been sparse.

Externí odkaz: https://doaj.org/article/d7d0fe8427514a679a7fe63beb236a86

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Akademický článek

Negative effects of parasite exposure and variable thermal stress on brown trout (Salmo trutta) under future climatic and hydropower production scenarios

Autor: Roser Casas-Mulet, Emily Matthews, Juergen Geist, Isabelle Durance, Jo Cable

Publikováno v: Climate Change Ecology, Vol 2, Iss , Pp 100039- (2021)

Future water temperature changes may have a profound impact on fish-parasite interactions. However, while the effect of temperature on fish, and particularly salmonids, is well-understood, its combined effects with parasitic exposure are not. Here, w

Externí odkaz: https://doaj.org/article/8925489857914f7c9f5322ce72def8d4

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Akademický článek

Unmanned Aerial Vehicle (UAV)-Based Thermal Infra-Red (TIR) and Optical Imagery Reveals Multi-Spatial Scale Controls of Cold-Water Areas Over a Groundwater-Dominated Riverscape

Autor: Roser Casas-Mulet, Joachim Pander, Dongryeol Ryu, Michael J. Stewardson, Juergen Geist

Publikováno v: Frontiers in Environmental Science, Vol 8 (2020)

The forecast of warmer weather, and reduced precipitation and streamflow under climate change makes freshwater biota particularly vulnerable to being exposed to temperature extremes. Given the importance of temperature to regulate vital physiological

Externí odkaz: https://doaj.org/article/f87fd31b8dbb4acd9e0dd7b917977a6c

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Akademický článek

Assessing Stream Thermal Heterogeneity and Cold-Water Patches from UAV-Based Imagery: A Matter of Classification Methods and Metrics

Autor: Johannes Kuhn, Roser Casas-Mulet, Joachim Pander, Juergen Geist

Publikováno v: Remote Sensing, Vol 13, Iss 7, p 1379 (2021)

Understanding stream thermal heterogeneity patterns is crucial to assess and manage river resilience in light of climate change. The dual acquisition of high-resolution thermal infrared (TIR) and red–green–blue-band (RGB) imagery from unmanned ae

Externí odkaz: https://doaj.org/article/681f3836a06947d59d87073ca0c5f344

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