scholarly journals Susceptibility of European freshwater fish to climate change: species profiling based on life-history and environmental characteristics

2018 ◽  
Author(s):  
Ivan Jarić ◽  
Robert J. Lennox ◽  
Gregor Kalinkat ◽  
Gorčin Cvijanović ◽  
Johannes Radinger

AbstractClimate change is expected to strongly affect freshwater fish communities. Combined with other anthropogenic impacts, the impacts will alter species distributions and contribute to population declines and local extinctions. To provide timely management and conservation of fishes, it is relevant to identify species that will be most impacted by climate change and those that will be resilient. Species traits are considered a promising source of information on characteristics that influence resilience to various environmental conditions and impacts. We collated life history traits and climatic niches of 443 European freshwater fish species and compared those identified as susceptible to climate change to those that are considered to be resilient. Significant differences were observed between the two groups in their distribution, life-history and climatic niches, with climate-change susceptible species being distributed more southwardly within Europe, and being characterized by higher threat levels, lower commercial relevance, lower vulnerability to fishing, smaller body size and warmer thermal envelopes. We establish a list of species revealed to be of highest priority for further research and monitoring regarding climate change susceptibility within Europe. The presented approach represents a promising tool, to quickly assess large groups of species regarding their susceptibility to climate change and other threats, and to identify research and management priorities.


2018 ◽  
Vol 25 (2) ◽  
pp. 448-458 ◽  
Author(s):  
Ivan Jarić ◽  
Robert J. Lennox ◽  
Gregor Kalinkat ◽  
Gorčin Cvijanović ◽  
Johannes Radinger


2017 ◽  
Vol 45 (2) ◽  
pp. 147-154 ◽  
Author(s):  
EVAN J. PICKETT ◽  
MELANIE CHAN ◽  
WENDA CHENG ◽  
JOHN ALLCOCK ◽  
SIMBA CHAN ◽  
...  

SUMMARYThe East Asian–Australasian flyway contains some of the most threatened habitats in the world, with at least 155 waterbird species reliant on the tidal habitats it comprises. The black-faced spoonbill (Platalea minor) is an iconic endangered species distributed across the coast of East Asia. Its population suffered a severe decline into the 1990s, but extensive monitoring and conservation interventions have aided a substantial recovery of the species. We used a population viability analysis based on data collected over the past two decades in conjunction with species distribution models to project spatially explicit models of population change for the next 35 years. Over nearly all scenarios of habitat loss and climate change, the global spoonbill population was projected to increase in the short-term due to low population numbers likely well below current population carrying capacities. However, climate change and habitat loss together threaten the recovery of the spoonbill population such that, by 2050, population declines are apparent as a consequence of these cumulative impacts. These threats are also cryptic and represent a challenge to the conservation of species recovering from anthropogenic impacts; observed population increases can hide large reductions in habitat suitability that threaten the long-term viability of species.



2006 ◽  
Vol 273 (1603) ◽  
pp. 2809-2813 ◽  
Author(s):  
Thomas A Waite ◽  
Dan Strickland

Population declines along the lower-latitude edge of a species' range may be diagnostic of climate change. We report evidence that climate change has contributed to deteriorating reproductive success in a rapidly declining population of the grey jay ( Perisoreus canadensis ) at the southern edge of its range. This non-migratory bird of boreal and subalpine forest lives on permanent territories, where it hoards enormous amounts of food for winter and then breeds very early, under still-wintry conditions. We hypothesized that warmer autumns have increased the perishability of hoards and compromised subsequent breeding attempts. Our analysis confirmed that warm autumns, especially when followed by cold late winters, have led to delayed breeding and reduced reproductive success. Our findings uniquely show that weather months before the breeding season impact the timing and success of breeding. Warm autumns apparently represent hostile conditions for this species, because it relies on cold storage. Our study population may be especially vulnerable, because it is situated at the southern edge of the range, where the potential for hoard rot is most pronounced. This population's demise may signal a climate-driven range contraction through local extinctions along the trailing edge.



Author(s):  
Ivan Jaric ◽  
Robert Lennox ◽  
Gregor Kalinkat ◽  
Gorcin Cvijanovic ◽  
Johannes Radinger


2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Daniel E Winkler ◽  
Michelle Yu-Chan Lin ◽  
José Delgadillo ◽  
Kenneth J Chapin ◽  
Travis E Huxman

We studied how a rare, endemic alpine cushion plant responds to the interactive effects of warming and drought. Overall, we found that both drought and warming negatively influenced the species growth but that existing levels of phenotypic variation may be enough to at least temporarily buffer populations.



2021 ◽  
Vol 97 (1) ◽  
pp. 201-218
Author(s):  
Ousseyni Kalilou

Abstract Environmental stress contributes to food insecurity, poverty, forced migration and violent conflict in the Sahel, with climate change aggravating the situation. The production of gum arabic from the acacia tree increasingly aligns with the community stakeholders’ efforts to promote climate change mitigation, adaptation and resilience. Based on expert interviews and field observations in Niger, and a reading of relevant documents, I found that gum arabic production is valuable for conflict mitigation because it helps tackle the root causes of violent conflicts. The acacia gum tree is a natural soil fixer and multinational companies have coveted the resin from the tree, which is a rising commodity and a promising source of revenue for the local inhabitants. As different communities work together and cooperate with outside actors (government agencies, international partners, NGOs and businesses), the opportunities to build social cohesion around the tree increase. By facilitating ecological improvement, social inclusion and poverty alleviation, the promotion of gum arabic production, despite other issues such as bad natural resource governance, is a critical environmental peacebuilding strategy. Hence, suitable funding of massive afforestation with the acacia tree fits with community-based natural climate solutions to global humanitarian issues by protecting and restoring the local environment.



2010 ◽  
Vol 59 (5) ◽  
pp. 504-517 ◽  
Author(s):  
Jonathan M. Waters ◽  
Diane L. Rowe ◽  
Christopher P. Burridge ◽  
Graham P. Wallis


2021 ◽  
Author(s):  
Jarod P. Lyon ◽  
Tomas Bird ◽  
Zeb Tonkin ◽  
Scott Raymond ◽  
Joanne Sharley ◽  
...  
Keyword(s):  


2014 ◽  
Vol 60 (2) ◽  
pp. 221-232 ◽  
Author(s):  
Leonard Sandin ◽  
Astrid Schmidt-Kloiber ◽  
Jens-Christian Svenning ◽  
Erik Jeppesen ◽  
Nikolai Friberg

Abstract Freshwater habitats and organisms are among the most threatened on Earth, and freshwater ecosystems have been subject to large biodiversity losses. We developed a Climate Change Sensitivity (CCS) indicator based on trait information for a selection of stream- and lake-dwelling Ephemeroptera, Plecoptera and Trichoptera taxa. We calculated the CCS scores based on ten species traits identified as sensitive to global climate change. We then assessed climate change sensitivity between the six main ecoregions of Sweden as well as the three Swedish regions based on Illies. This was done using biological data from 1, 382 stream and lake sites where we compared large-scale (ecoregional) patterns in climate change sensitivity with potential future exposure of these ecosystems to increased temperatures using ensemble-modelled future changes in air temperature. Current (1961~1990) measured temperature and ensemble-modelled future (2100) temperature showed an increase from the northernmost towards the southern ecoregions, whereas the predicted temperature change increased from south to north. The CCS indicator scores were highest in the two northernmost boreal ecoregions where we also can expect the largest global climate change-induced increase in temperature, indicating an unfortunate congruence of exposure and sensitivity to climate change. These results are of vital importance when planning and implementing management and conservation strategies in freshwater ecosystems, e.g., to mitigate increased temperatures using riparian buffer strips. We conclude that traits information on taxa specialization, e.g., in terms of feeding specialism or taxa having a preference for high altitudes as well as sensitivity to changes in temperature are important when assessing the risk from future global climate change to freshwater ecosystems.



2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dennis Rödder ◽  
Thomas Schmitt ◽  
Patrick Gros ◽  
Werner Ulrich ◽  
Jan Christian Habel

AbstractClimate change impacts biodiversity and is driving range shifts of species and populations across the globe. To understand the effects of climate warming on biota, long-term observations of the occurrence of species and detailed knowledge on their ecology and life-history is crucial. Mountain species particularly suffer under climate warming and often respond to environmental changes by altitudinal range shifts. We assessed long-term distribution trends of mountain butterflies across the eastern Alps and calculated species’ specific annual range shifts based on field observations and species distribution models, counterbalancing the potential drawbacks of both approaches. We also compiled details on the ecology, behaviour and life-history, and the climate niche of each species assessed. We found that the highest altitudinal maxima were observed recently in the majority of cases, while the lowest altitudes of observations were recorded before 1980. Mobile and generalist species with a broad ecological amplitude tended to move uphill more than specialist and sedentary species. As main drivers we identified climatic conditions and topographic variables, such as insolation and solar irradiation. This study provides important evidence for responses of high mountain taxa to rapid climate change. Our study underlines the advantage of combining historical surveys and museum collection data with cutting-edge analyses.



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