scholarly journals What Is the Role of the Eurasian Forests Under a Warming Climate?

2017 ◽  
Author(s):  
Martin Heimann ◽  
Keyword(s):  
Warming Climate

scholarly journals Links between plant species’ spatial and temporal responses to a warming climate

2014 ◽  
Vol 281 (1779) ◽  
pp. 20133017 ◽  
Author(s):  
Tatsuya Amano ◽  
Robert P. Freckleton ◽  
Simon A. Queenborough ◽  
Simon W. Doxford ◽  
Richard J. Smithers ◽  
...  
Keyword(s):  
Species Distribution Models ◽  
Range Shifts ◽  
Niche Conservatism ◽  
Historical Records ◽  
Perennial Species ◽  
Distribution Models ◽  
Climatic Niche ◽  
Warming Climate ◽  
Phenological Changes

To generate realistic projections of species’ responses to climate change, we need to understand the factors that limit their ability to respond. Although climatic niche conservatism, the maintenance of a species’s climatic niche over time, is a critical assumption in niche-based species distribution models, little is known about how universal it is and how it operates. In particular, few studies have tested the role of climatic niche conservatism via phenological changes in explaining the reported wide variance in the extent of range shifts among species. Using historical records of the phenology and spatial distribution of British plants under a warming climate, we revealed that: (i) perennial species, as well as those with weaker or lagged phenological responses to temperature, experienced a greater increase in temperature during flowering (i.e. failed to maintain climatic niche via phenological changes); (ii) species that failed to maintain climatic niche via phenological changes showed greater northward range shifts; and (iii) there was a complementary relationship between the levels of climatic niche conservatism via phenological changes and range shifts. These results indicate that even species with high climatic niche conservatism might not show range shifts as instead they track warming temperatures during flowering by advancing their phenology.

Facing the future: the importance of substratum features for ecological engineering of artificial habitats in the rocky intertidal

2016 ◽  
Vol 67 (1) ◽  
pp. 131 ◽  
Author(s):  
Louise B. Firth ◽  
Freya J. White ◽  
Meredith Schofield ◽  
Mick E. Hanley ◽  
Michael T. Burrows ◽  
...  
Keyword(s):  
General Trend ◽  
Ecological Engineering ◽  
Grazing Pressure ◽  
Rocky Intertidal ◽  
Taxon Richness ◽  
Natural Habitats ◽  
Artificial Habitats ◽  
Warming Climate ◽  
North And South

Coastal defences are proliferating in response to climate change, leading to the creation of more vertical substrata. Efforts are being made to mitigate their impacts and create novel habitats to promote biodiversity. Little is known about the effect of aspect (i.e. north–south directionality) and inclination on intertidal biodiversity in artificial habitats. Artificial and natural habitats were compared to assess the role of aspect and substratum inclination in determining patterns of biodiversity at two tidal heights (high and mid). We also compared grazing activity between north- and south-facing surfaces in natural habitats to examine the potential for differential grazing pressure to affect community structure and functioning. Results were variable but some clear patterns emerged. Inclination had no effect on biodiversity or abundance. There was a general trend towards greater taxon richness and abundance on north-facing than south-facing substrata in natural and artificial habitats. On natural shores, the abundance and grazing activity of ‘southern’ limpets (i.e. Patella depressa) was greater on south-facing than north-facing substrata, with possible implications for further range-expansion. These results highlight the importance of incorporating shaded habitats in the construction of artificial habitats. These habitats may represent an important refuge from grazing pressure and thermal and desiccation stress in a warming climate.

scholarly journals Understanding Vietnamese consumers’ purchase intentionstoward green electronic productsin Hochiminh city –adapted tpb perspective

2015 ◽  
Vol 18 (4) ◽  
pp. 55-63
Author(s):  
Ngoc Bich Nguyen ◽  
Nam Van Nguyen ◽  
Bich Huy Hai Bui
Keyword(s):  
Environmental Protection ◽  
Environmental Sustainability ◽  
Environmental Issues ◽  
Purchase Intentions ◽  
Environmental Knowledge ◽  
High Rate ◽  
Role Of Government ◽  
Electronic Products ◽  
Warming Climate

Keeping the balance between high rate of economic growth and environmental sustainability is the most important task of many nations, especially developing nations including VietNam. According toGardner & Stern [1],many environmental issues such as global warming, climate change… due to pollution, loss of biodiversity are intrinsically related to human behavior. Besides the role of Government and business in environmental protection, individual purchase behaviour has a big effect on environmental protection, too. Hencethis research applies the theory of Planned Behavior to examine the factors that have impact on Vietnamese Consumers’ Purchase Intentions toward Green Electronic Products in Hochiminh City. Through directly interviewing 193 consumers in HCM city, the resultshowed that the most affected factor of Consumers’ Purchase Intentions toward Green Electronic Products is environmental knowledge(β =0,283),recognized consumer effectiveness(β =0,236), ecolabel (β =0,217), with adjusted R2is of 19,4%.

scholarly journals Broad-scale mercury bioaccumulation patterns in two freshwater sport fishes: testing the role of growth dilution in a warming climate

2018 ◽  
Author(s):  
Shyam M. Thomas ◽  
Stephanie J. Melles ◽  
Satyendra P. Bhavsar
Keyword(s):  
Northern Pike ◽  
Space Time ◽  
Spatiotemporal Variations ◽  
Latitudinal Zone ◽  
Space And Time ◽  
Spatiotemporal Trends ◽  
Warming Climate ◽  
Mercury Bioaccumulation ◽  
Broad Scale

AbstractSport fishes at the apex of aquatic food webs are indicators of mercury in the environment. However bioaccumulation of mercury in fish is a complex process that varies in space and time. Both large-scale climatic and environmental, as well as biological factors are drivers of these space-time variations. In this study, we avail a long-running monitoring program from Ontario, Canada to better understand spatiotemporal variations in fish mercury bioaccumulation. Focussing on two common large-bodied fishes (Walleye and Northern Pike), the data were first stratified by latitudinal zone (north, mid, and south) and eight temporal periods (between 1975 & 2015). A series of linear mixed-effects models (LMEMs) with latitudinal zone, time period, and their interactions as random effects were used to capture the spatial, temporal, and spatiotemporal variations in mercury bioaccumulation. The random slopes from the best-fitting LMEM were used to define bioaccumulation index and capture trends in space and time. Given the generally warming climate trend over the past 45 years, the role of growth dilution in modulating the bioaccumulation trends was also evaluated. The full model comprising of space, time and space-time interactions was the best-fit with interaction effects explaining most of the variation. Spatiotemporal trends showed overall similar patterns for both species. Growth dilution in conjunction with estimated rates of warming for different latitudinal zones failed to explain the spatiotemporal trends. Temporal trends showed contrasting bioaccumulation patterns-increasing in Northern Pike and decreasing in Walleye, suggesting temperature-driven growth dilution is more likely in latter. However, a space-for-time substitution revealed only a weak presence of growth dilution in Walleye, and it was not attributable to temperature differences. Overall, our study summarizes broad-scale variations in fish mercury and explores the role of growth dilution in shaping the observed patterns.

scholarly journals The role of internal feedbacks in shifting deep lake mixing regimes under a warming climate

2021 ◽  
Author(s):  
Jorrit P. Mesman ◽  
Julio A. A. Stelzer ◽  
Vasilis Dakos ◽  
Stéphane Goyette ◽  
Ian D. Jones ◽  
...  
Keyword(s):  
Deep Lake ◽  
Lake Mixing ◽  
Warming Climate

scholarly journals Designed Ecologies: Breaking away from islandised conservation

2021 ◽  
Author(s):  
◽  
Elvina Quartermain
Keyword(s):  
Natural Resources ◽  
National Parks ◽  
Native Species ◽  
New Era ◽  
Warming Climate ◽  
Vital Component ◽  
National Significance ◽  
And Function ◽  
Productive Landscapes

<p>This research investigates the role of designed ecologies in the management of our ecosystems and natural resources. It argues that society has adopted a ‘protectionist’ approach toward the planning of our landscapes which in turn has had a detrimental effect on the integration between conservation and occupation. The topic of diminishing landscapes has become increasingly more apparent within recent years and has had a significant contribution toward such approach. With concerns around global warming, climate change and an increase in population, methods of counteraction toward the decline of our native species has become of fundamental importance. It is evident that ecosystems and natural resources provide a vital component toward our livability and therefore planning their resilience is crucial. Various policies have been established to constrain and restrict development in order to protect these ecologies, often within areas of national significance e.g. national parks. These implications have proven to be successful in their intention however, the focus of concern lies in the lack of integral thinking on approach to these spaces. Conservation, as it stands, is weighted significantly toward the islandisation of areas with little to no interaction or benefit to those who are expected to protect them. Looking toward theories centered around productive landscapes and the balance of untouched nature verse those that are interpreted, this research seeks understanding of compromise and compliment. It aims to define a new design approach which 1) engages with traditional aims to ensure our enjoyment of these ecologies is sustained for future generations, and 2) makes more efficient use of such asset in the way these spaces are utilised on a day to day basis. Four different approach methods have been tested and are outlined as follows in an attempt to determine a framework for integration. Though the following was formulated from a design perspective, the critique should not be constricted to simply one discipline but instigate a dialogue of discussion between architects, planners, ecologists, environmentalists, politicians and so forth. These methods should be critiqued on the success of integration between conservation and occupation in order to establish a design process which enables hybridised ecologies to coexist and function simultaneously. Successful implications of such model will use landscape architecture as a means to breathe new life back into these spaces, breaking away from islandised conservation and into a new era of dual functioning resilient outcomes.</p>

scholarly journals Spring fuelling by arctic Dunlins Calidris a. alpina in the southern Baltic and the potential role of a changing climate

Ornis Svecica ◽  
2012 ◽  
Vol 22 (3–4) ◽  
pp. 80-92
Author(s):  
Johan Stedt ◽  
Åke Lindström
Keyword(s):  
Potential Role ◽  
Average Rate ◽  
Baltic Region ◽  
Spring Temperature ◽  
The North ◽  
Warming Climate ◽  
Breeding Grounds ◽  
The North Sea ◽  
The Baltic

In spring, Dunlins Calidris a. alpina put on substantial fuel stores in the North Sea region before a long flight to breed in northwest Russia. There are hitherto no well-described fuelling sites in the Baltic region. In May and early June in 2004–2010 we trapped more than 1000 Dunlins at Ottenby, south-east Sweden. Most birds carried substantial fuel loads already when first trapped (much more than in autumn) and, more importantly, 37 within-season re-traps increased in mass at an average rate of 1.2 g/d. This corresponds to a fuelling rate of about 2.6% of lean body mass per day, among the highest recorded for this species. Stopover times were short; only 3.5% of the birds were re-trapped and they stayed on average only 2.2 days. Since the late 1970s, increasing numbers of Dunlins stop over at successively earlier dates. This coincides with an increase in spring temperature of 1.1–2.0°C in 1977–2010. Possibly, a warming climate has facilitated and selected for a gradual shift of the final fuelling sites closer towards the breeding grounds.

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