Primary Indicators of Degrading Ecosystem and Restoration Process

Published: Jan. 1, 2025

Language: Английский

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Riparian Landscape Change: A Spatial Approach for Quantifying Change and Development of a River Network Restoration Model

Environmental Management, Journal Year: 2024, Volume and Issue: 74(5), P. 853 - 869

Published: Aug. 20, 2024

Natural river landscapes can be biodiversity hotspots but are one of the most human altered ecosystems with habitats significantly damaged around world, and a third fish populations threatened extinction. While riparian have been negatively by anthropogenic activities, effective planning restoration strategies reverse negative impacts improving habitat quality. However, restoring rivers requires appropriate data on current health while also considering priorities for different stakeholders. To address this, Geographic Information System (GIS) was used to create new transferable priority model based section Linth in Switzerland as case study. The is founded connectivity, condition, national species hotspots. Landscape change zone analyzed using aerial imagery landscape metrics. Almost quarter within study area were considered high or very priority, many aquatic set benefit from restoration. From 1946 2019, became highly fragmented due significant growth impervious surfaces concomitant loss agricultural land. GIS provides tool which environmental agencies manage natural features over large scales, targeting conservation areas greatest need.

Language: Английский

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Which Natural Wetland Characteristics Could be Used in Creating Temporary Wetlands?

Wetlands, Journal Year: 2024, Volume and Issue: 44(7)

Published: Sept. 17, 2024

Abstract Temporary wetlands have mostly been disregarded in freshwater habitat regulation (with noticeable exceptions such as turloughs) leading to their global degradation despite high value terms of diverse ecosystem services. Wetland creation may be used mitigate this loss. In review, we compiled information on the ecological features temporary based 45 scientific publications. We identified seven types natural emulated wetland construction and restoration Northern Hemisphere, with hydroperiod lengths ranging from less than one month ephemeral ponds multi-year floods. highlight biodiversity associated various hydroperiods, show that different organisms use types. give examples how has for enhancement list characteristics created wetlands. Colonization newly by aquatic macroinvertebrates amphibians was rapid, but species compositions differed reference sites. Finally, provide management recommendations creating support biodiversity. importance management, banks gradual slopes, enhancing macrophyte vegetation fish absence promote Monitoring ongoing practices are discussed tools ensuring targets long term. For example, performing partial or full drawdowns at hydroperiods discussed. On landscape level, recommend planning a network well-connected heterogeneous enhance colonization dispersal, thereby

Language: Английский

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Taxon-specific effects of seasonal variation and water connectivity on the diversity of phytoplankton, zooplankton and benthic organisms in urban wetland

Journal of Freshwater Ecology, Journal Year: 2023, Volume and Issue: 38(1)

Published: July 27, 2023

Climate change and human activities have altered the water environment affected community structure of aquatic organisms. Few studies focused on specific responses multiple organisms, their interactions, to environmental factors, particularly in urban wetland ecosystems. To address this gap, study aimed investigate effects seasonal variation connectivity properties organisms Xixi Zhejiang Province, China. The results demonstrated that showed significant differences with changes season connectivity, species richness, Shannon-Wiener index, Simpson diversity Pielou evenness varied seasonally riverways ponds. Meanwhile, response various factors was inconsistent. Dissolved oxygen suspended solids greatly influenced phytoplankton, while temperature principal factor affecting zooplankton benthic partial least squares path model revealed had a direct positive effect phytoplankton community, it distinct negative community. Environmental through trade-off way: directly further influencing significantly way. This highlights understanding patterns underlying mechanisms freshwater biodiversity, interaction

Language: Английский

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Sustaining high-value salmonid populations in regulated rivers: Insights from individual-based modelling of brown trout and Atlantic salmon

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 51, P. e02887 - e02887

Published: March 5, 2024

To combat climate change, societal pressure to develop fossil-free hydroelectricity is growing. There a great need, however, for environmental assessment tools that can predict the effects of streamflow regulation on biodiversity in hydropower-regulated rivers. Ecological modelling lets practitioners: 1) set broad bounds population-level responses key species and 2) identify knowledge gaps prioritize research needs. Individual-based models (IBMs) are powerful assessing relative benefits alternative management actions, therefore help more sustainable hydropower solutions. We applied inSALMO 7.3-SD IBM populations brown trout (Salmo trutta) Atlantic salmon (S. salar) lower Gullspång River, Sweden. simulated various minimum hydropeaking flow releases (from 9 21 m3/s) outmigration production. found number age-1 outmigrants both decreased with increasing release scenarios. The age-2 did not change considerably release, but sharply at highest flow. most were produced by scenarios 15 18 m3/s. model predicts, therefore, varying species- life stage-specific regulation. Moreover, increased caused juveniles stay river longer outmigrate larger size, which exposes them predation could increase post-outmigration survival. By providing insights into mechanisms driving population dynamics, IBMs promote sustainability high-conservation-value fish species.

Language: Английский

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Anthropogenic induced drivers of fish assemblages in small water bodies and conservation implications

Ecohydrology & Hydrobiology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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Water Reserves For The Environment: A Strategic And Temporal Analysis (2012-2022) For The Implementation Of Environmental Flows In Mexico

Published: Jan. 5, 2024

In Mexico, the evaluations of environmental flows are regulated by Mexican Norm NMX-AA-159-SCFI-2012 and they warrant establishment water reserves for environment. Yet, pressure use limits said reserves. This research aimed to evaluate changes through time variables that serve as a basis implementation strategy government. A geographical information system was built with updated variables, desired conservation status analyzed, potential were estimated based on reference values all basins nationwide. The results examined according their historical, current, contribution natural protected areas connectivity. outcomes point towards an administrative positive despite growing use, change rate higher than one creation new areas. Currently, low high value have contribute 86–88% goal set present administration without affecting availability. Finally, reserving in priority would guarantee legal protection flow regime 48–50% hydrographic network status, 45–49% wetlands international importance, other 85–89% global ecoregions represented Mexico.

Language: Английский

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Long-term riparian forest loss around streams, lakes, and wetlands in ecologically diverse managed and unmanaged landscapes

Forest Ecology and Management, Journal Year: 2024, Volume and Issue: 562, P. 121931 - 121931

Published: April 26, 2024

Riparian forests are at risk from the cumulative effects of human and natural disturbance. We assessed magnitude rate forest loss adjacent to freshwater features in province British Columbia, Canada, 2000 2021. used Global Forest Change data quantify percent tree cover lost annually across six ecologically topographically diverse ecosections containing 361,370 streams, lakes, wetlands. stratified aquatic into large small size classes within outside parks. hypothesized that would be greater parks as a consequence human-caused Also, we rates around generally receive less protection Loss riparian was consistently (median losses 3.20% versus 1.29%), streams = 3.31%) wetlands regardless 3.10%). Rates were nonlinear, increasing substantially 2013. Though annual small, 2021 substantial. anticipate continued climate changes disturbances intensify. recommend further investigation implications these observed trends for ecosystem values found or managed unmanaged landscapes.

Language: Английский

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Biodiversity of Cladocera and Water Quality for Euphrates River in the Eastern of Al- Qadisiyah Governorate, Iraq

Egyptian Journal of Aquatic Biology and Fisheries, Journal Year: 2024, Volume and Issue: 28(1), P. 1 - 17

Published: Jan. 1, 2024

Language: Английский

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Habitat Restoration Strategies for Arctic Marine Environments

Published: Jan. 1, 2024

Language: Английский

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