scholarly journals What and where? Identifying high-risk aquatic invasive species and hotspots of suitable habitat in the Arctic

2018 ◽  
Author(s):  
Jesica Goldsmit ◽  
Chris Mckindsey ◽  
Philippe Archambault ◽  
Kimberly Howland
Keyword(s):  
Invasive Species ◽  
Global Warming ◽  
High Risk ◽  
Aquatic Invasive Species ◽  
The Arctic ◽  
Suitable Habitat ◽  
Resource Exploitation ◽  
Future Global Warming ◽  
Scale Modelling ◽  
Taxonomic Groups

The risk of aquatic invasive species (AIS) introductions in the Arctic is expected to increase with ongoing trends of greater shipping activity, resource exploitation, and climate warming in the region. We identified a suite of AIS (benthos, zooplankton and macroalgae) with the greatest likelihood of introduction and impact in the Canadian Arctic using the Canadian Marine Invasive Screening Tool. The top sixteen riskiest species (mainly benthic) were then modelled to predict the potential spatial distributions (habitat modelling using Maximum Entropy) at an Arctic scale. Modelling was conducted under present environmental conditions and under two future global warming scenarios (2050 and 2100). Results show that hotspots or regions where suitable habitat is more densely accumulated for modelled AIS are in the Hudson Complex, Chukchi / Eastern Bering Sea, and Barents / White Sea. Most taxonomic groups showed a trend for a positive poleward shift in the future, increasing from the present time to the end of the century. This approach will aid in the identification of present and future high-risk areas for AIS in response to global warming.

scholarly journals What and where? Identifying high-risk aquatic invasive species and hotspots of suitable habitat in the Arctic

2018 ◽  
Author(s):  
Jesica Goldsmit ◽  
Chris Mckindsey ◽  
Philippe Archambault ◽  
Kimberly Howland
Keyword(s):  
Invasive Species ◽  
Global Warming ◽  
High Risk ◽  
Aquatic Invasive Species ◽  
The Arctic ◽  
Suitable Habitat ◽  
Resource Exploitation ◽  
Future Global Warming ◽  
Scale Modelling ◽  
Taxonomic Groups

The risk of aquatic invasive species (AIS) introductions in the Arctic is expected to increase with ongoing trends of greater shipping activity, resource exploitation, and climate warming in the region. We identified a suite of AIS (benthos, zooplankton and macroalgae) with the greatest likelihood of introduction and impact in the Canadian Arctic using the Canadian Marine Invasive Screening Tool. The top sixteen riskiest species (mainly benthic) were then modelled to predict the potential spatial distributions (habitat modelling using Maximum Entropy) at an Arctic scale. Modelling was conducted under present environmental conditions and under two future global warming scenarios (2050 and 2100). Results show that hotspots or regions where suitable habitat is more densely accumulated for modelled AIS are in the Hudson Complex, Chukchi / Eastern Bering Sea, and Barents / White Sea. Most taxonomic groups showed a trend for a positive poleward shift in the future, increasing from the present time to the end of the century. This approach will aid in the identification of present and future high-risk areas for AIS in response to global warming.

A management framework for preventing the secondary spread of aquatic invasive species

2008 ◽  
Vol 65 (7) ◽  
pp. 1512-1522 ◽  
Author(s):  
M. Jake Vander Zanden ◽  
Julian D. Olden
Keyword(s):  
Invasive Species ◽  
Great Lakes ◽  
Biological Invasions ◽  
Dreissena Polymorpha ◽  
Aquatic Invasive Species ◽  
Suitable Habitat ◽  
Bythotrephes Longimanus ◽  
Isolated Populations ◽  
Rainbow Smelt ◽  
Secondary Spread

Biological invasions continue to accelerate, and there is a need for closer integration between invasive species research and on-the-ground management. In many regions, aquatic invasive species have established isolated populations, but have not yet spread to many sites that provide suitable habitat. In the Laurentian Great Lakes region, several Great Lakes invaders such as zebra mussel ( Dreissena polymorpha ), rainbow smelt ( Osmerus mordax ), and spiny water flea ( Bythotrephes longimanus ) are currently undergoing secondary spread to the smaller inland lakes and streams. This paper describes recent advances in forecasting the secondary spread of aquatic invasive species and presents a framework for assessing vulnerability of inland waters based on explicit assessment of three distinct aspects of biological invasions: colonization, site suitability, and adverse impact. In many cases, only a fraction of lakes on the landscape are vulnerable to specific invasive species, highlighting the potential application of this type of research for improving invasive species management. Effective application to on-the-ground resource management will require that research aimed at assessing site vulnerability be translated into management tools.

scholarly journals Long-Term Monitoring Reveals Differential Responses of Mussel and Host Fish Communities in a Biodiversity Hotspot

Diversity ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 122
Author(s):  
Irene Sanchez Gonzalez ◽  
Garrett W. Hopper ◽  
Jamie Bucholz ◽  
Carla L. Atkinson
Keyword(s):  
Invasive Species ◽  
Life History ◽  
Biodiversity Hotspot ◽  
Biodiversity Hotspots ◽  
Host Fish ◽  
Long Term Monitoring ◽  
Differential Responses ◽  
Taxonomic Groups ◽  
Term Monitoring

Biodiversity hotspots can serve as protected areas that aid in species conservation. Long-term monitoring of multiple taxonomic groups within biodiversity hotspots can offer insight into factors influencing their dynamics. Mussels (Bivalvia: Unionidae) and fish are highly diverse and imperiled groups of organisms with contrasting life histories that should influence their response to ecological factors associated with local and global change. Here we use historical and contemporary fish and mussel survey data to assess fish and mussel community changes over a 33 year period (1986–2019) and relationships between mussel abundance and their host fish abundance in Bogue Chitto Creek, a tributary of the Alabama River and a biodiversity hotspot. Mussel abundance declined by ~80% and community composition shifted, with eight species previously recorded not found in 2019, and a single individual of the endangered Pleurobema decisum. Fish abundances increased and life history strategies in the community appeared stable and there was no apparent relationship between mussel declines and abundance of host fish. Temporal variation in the proportion of life history traits composing mussel assemblages was also indicative of the disturbances specifically affecting the mussel community. However, changes and declines in mussel assemblages in Bogue Chitto Creek cannot be firmly attributed to any specific factor or events because of gaps in historical environmental and biological data. We believe that mobility differences contributed to differential responses of fish and mussel communities to stressors including habitat degradation, recent droughts and invasive species. Overall, our work indicates that monitoring biodiversity hotspots using hydrological measurements, standardized survey methods and monitoring invasive species abundance would better identify the effects of multiple and interactive stressors that impact disparate taxonomic groups in freshwater ecosystems.

scholarly journals Influence of Northern Hemispheric Winter Warming on the Pacific Storm Track

2021 ◽  
Author(s):  
Hyung-Ju Park ◽  
Kwang-Yul Kim
Keyword(s):  
Heat Flux ◽  
Global Warming ◽  
Energy Conversion ◽  
Storm Track ◽  
The Arctic ◽  
Late Winter ◽  
Turbulent Heat ◽  
Early Winter ◽  
Eddy Heat Flux ◽  
Northern Hemispheric

AbstractEffect of global warming on the sub-seasonal variability of the Northern Hemispheric winter (NDJFM) Pacific storm-track (PST) activity has been investigated. Previous studies showed that the winter-averaged PST has shifted northward and intensified, which was explained in terms of energy exchange with the mean field. Effect of global warming exhibits spatio-temporal heterogeneity with predominance over the Arctic region and in the winter season. Therefore, seasonal averaging may hide important features on sub-seasonal scales. In this study, distinct sub-seasonal response in storm track activities to winter Northern Hemispheric warming is analyzed applying cyclostationary empirical orthogonal function analysis to ERA5 data. The key findings are as follows. Change in the PST is not uniform throughout the winter; the PST shifts northward in early winter (NDJ) and intensifies in late winter (FM). In early winter, the combined effect of weakened baroclinic process to the south of the climatological PST and weakened barotropic damping to the north is responsible for the northward shift. In late winter, both processes contribute to the amplification of the PST. Further, change in baroclinic energy conversion is quantitatively dominated by eddy heat flux, whereas axial tilting of eddies is primarily responsible for change in barotropic energy conversion. A close relationship between anomalous eddy heat flux and anomalous boundary heating, which is largely determined by surface turbulent heat flux, is also demonstrated.

scholarly journals Aquatic invasive species distribution within Wallace region: a preliminary review

2020 ◽  
Vol 564 ◽  
pp. 012038
Author(s):  
D Yanuarita ◽  
D F Inaku ◽  
N Nurdin ◽  
S W Rahim ◽  
H Kudsiah ◽  
...  
Keyword(s):  
Invasive Species ◽  
Species Distribution ◽  
Aquatic Invasive Species ◽  
Preliminary Review

The simulated response of dimethylsulfide production in the Arctic Ocean to global warming

Tellus B ◽  
2005 ◽  
Vol 57 (5) ◽  
pp. 391-403 ◽  
Author(s):  
Albert J. Gabric ◽  
Bo Qu ◽  
Patricia Matrai ◽  
Anthony C. Hirst
Keyword(s):  
Global Warming ◽  
Arctic Ocean ◽  
The Arctic ◽  
The Arctic Ocean

Aquatic Invasive Species Transport via Trailered Boats: What is Being Moved, Who is Moving it, and What Can Be Done

Fisheries ◽  
2010 ◽  
Vol 35 (3) ◽  
pp. 121-132 ◽  
Author(s):  
John D. Rothlisberger ◽  
W. Lindsay Chadderton ◽  
Joanna McNulty ◽  
David M. Lodge
Keyword(s):  
Invasive Species ◽  
Aquatic Invasive Species ◽  
Species Transport ◽  
Being Moved
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