Individual-Based Models for Incorporating Landscape Processes in the Conservation and Management of Aquatic Systems

Seaborn, Travis; Day, Casey C.; Galla, Stephanie J.; Höök, Tomas O.; Jossie, Elizabeth; Landguth, Erin L.; Liu, Rongsong; Simmons, Ryan K.

doi:10.1007/s40823-023-00089-8

Curr Landscape Ecol Rep

2023

DOI: 10.1007/s40823-023-00089-8

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Individual-Based Models for Incorporating Landscape Processes in the Conservation and Management of Aquatic Systems

Travis Seaborn

Casey C. Day

Stephanie J. Galla

et al.

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2024

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Cited by 2 publications

References 127 publications

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Disentangling effects of dispersal, environment and anthropogenic barriers on functional connectivity in aquatic systems

Day,

Alò,

Simmons

et al. 2024

Molecular Ecology

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Disentangling the roles of structural landscape factors and animal movement behaviour can present challenges for practitioners managing landscapes to maintain functional connectivity and achieve conservation goals. We used a landscape genetics approach to combine robust demographic, behavioural and genetic datasets with spatially explicit simulations to evaluate the effects of anthropogenic barriers (dams, culverts) and natural landscape resistance (gradient, elevation) affecting dispersal behaviour, genetic connectivity and genetic structure in a resident population of Westslope Cutthroat Trout (Oncorhynchus clarkii lewisi). Analyses based on 10 years of sampling effort revealed a pattern of restricted dispersal, and population genetics identified discrete population clusters between distal tributaries and the mainstem stream and no structure within the mainstem stream. Demogenetic simulations demonstrated that, for this population, the effects of existing anthropogenic barriers on population structure are redundant with effects of restricted dispersal associated with the underlying environmental resistance. Our approach provides an example of how extensive field sampling combined with landscape genetics can be incorporated into spatially explicit simulation modelling to explore how, together, movement ecology and landscape resistance can be used to inform decisions around restoration and connectivity.

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Disentangling effects of dispersal, environment and anthropogenic barriers on functional connectivity in aquatic systems

Day,

Alò,

Simmons

et al. 2024

Molecular Ecology

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Landscape determinants of aquatic estuarine habitat use by juvenile Chinook salmon

Beamer,

Greene,

Chamberlin

et al. 2024

Can. J. Fish. Aquat. Sci.

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Habitat restoration planning and design can be informed by information on spatial patterns in habitat use, which can be obtained from temporally and spatially extensive monitoring efforts. Using records from long-term monitoring in four tidal deltas, we modelled how landscape features (channel types, wetland vegetation types, and a channel network connectivity index) influenced juvenile natural-origin (NOr) and hatchery-origin (HOr) Chinook salmon presence/absence and density when present. Models detected strong effects of landscape characteristics on either presence/absence or density, although the directionality and relative importance of these features differed between NOr and HOr fish. In addition, while interannual differences were stronger for NOr juveniles, seasonal pattern was much stronger for HOr fish and was in fact the strongest predictor of density. For both types of fish, interactions of landscape features existed with seasonal pattern, indicating that habitat use changed dynamically from the beginning to the end of the rearing period. These findings help provide general principles for prioritizing location and designing of habitat restoration projects.

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Individual-Based Models for Incorporating Landscape Processes in the Conservation and Management of Aquatic Systems

Cited by 2 publications

References 127 publications

Disentangling effects of dispersal, environment and anthropogenic barriers on functional connectivity in aquatic systems

Disentangling effects of dispersal, environment and anthropogenic barriers on functional connectivity in aquatic systems

Landscape determinants of aquatic estuarine habitat use by juvenile Chinook salmon

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