scholarly journals Seed Sourcing Strategies Considering Climate Change Forecasts: A Practical Test in Scots Pine

Forests ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1222
Author(s):  
Eduardo Notivol ◽  
Luis Santos-del-Blanco ◽  
Regina Chambel ◽  
Jose Climent ◽  
Ricardo Alía

Research Highlights: We experimentally tested different seed sourcing strategies (local, predictive, climate-predictive, climate-adjusted, composite and admixture) under a climate change high emissions scenario using a Scots pine multi-site provenance test. Background and Objectives: There is an urgent need to conserve genetic resources and to support resilience of conifer species facing expected changes and threats. Seed sourcing strategies have been proposed to maximize the future adaptation and resilience of our forests. However, these proposals are yet to be tested, especially in long-lived organisms as forest trees, due to methodological constraints. In addition, some methods rely on the transfer of material from populations matching the future conditions of the sites. However, at the rear edge of the species, some specific problems (high fragmentation, high genetic differentiation, role of genetic drift) challenge the theoretical expectations of some of these methods. Materials and Methods: We used a Scots pine multi-site provenance test, consisting of seventeen provenances covering the distribution range of the species in Spain tested in five representative sites. We measured height, diameter and survival at 5, 10 and 15 years after planting. We simulated populations of 50 trees by bootstrapping material of the provenance test after removing the intra-site environmental effects, simulating different seed sourcing strategies. Results: We found that local and predictive methods behaved better than methods based on the selection of future climate-matching strategies (predictive-climate and climate-adjusted) and those combining several seed sources (composite and admixture seed sourcing strategies). Conclusions: Despite the theoretical expectations, for Scots pine, a forest tree species at its rear edge of its distribution, seed-sourcing methods based on climate matching or a combination of seed sources do not perform better than traditional local or predictive methods or they are not feasible because of the lack of future climate-matching populations.


2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Süleyman Gülcü ◽  
Nebi Bilir

Tree height, basal diameter, and survival were examined in thirteen-year-old provenance test established by 30 seed sources of Scots pine (Pinus sylvestrisL.) at two exotic sites of the species in Southern part of Turkey. Variations within provenance and among provenances and relations among the traits were estimated to compare Scots pine provenance and two other native species. Averages of tree height and basal diameter were 350 cm and 52.7 mm in Aydogmus site and 385 cm and 51.2 mm in Kemer site, respectively. There were large differences within and among provenances for the characters. Sites were similar (p>0.05) for the characters, while there were significant differences (p≤0.05) among provenances within site according to results of variance analysis (ANOVA). Scots pine provenances were higher and had more thickness than that of black pine (Pinus nigraArnold) and Taurus cedar (Cedrus libaniA. Rich.) which were natural species of the region. There were positive and significant (p<0.05) correlations between height and basal diameter in the species. Average survivals were 56% and 35% of the provenances in the sites. They were 71% and 11% in black pine and 53% in Taurus cedar for the sites respectively.





2010 ◽  
Vol 86 (3) ◽  
pp. 348-353 ◽  
Author(s):  
Ali A Rahi ◽  
Colin Bowling ◽  
Dale Simpson

Survival, total height and diameter at breast height (DBH) were measured in the fall of 2005 in a 48-year-old red pine (Pinus resinosa Ait.) provenance trial growing in northwestern Ontario. There was significant variation in both height and diameter among the 23 provenances. Generally, westerly provenances performed well while those from the Maritime Provinces exhibited relatively poor growth. Considering that the plantation is at the northern biological range of red pine, survival was high, averaging 96% after 48 years. Provenances with the best growth rates exceeded a volume of 420 m3 ha-1. Some provenances from Minnesota and Wisconsin as well as Fort Frances, Ontario exhibited superior growth and should be considered as seed sources for future planting programs in northwestern Ontario. Key words: red pine, provenance test, survival, diameter, height, volume, Northwestern Ontario



2007 ◽  
Vol 363 (1501) ◽  
pp. 2339-2349 ◽  
Author(s):  
Seppo Kellomäki ◽  
Heli Peltola ◽  
Tuula Nuutinen ◽  
Kari T Korhonen ◽  
Harri Strandman

This study investigated the sensitivity of managed boreal forests to climate change, with consequent needs to adapt the management to climate change. Model simulations representing the Finnish territory between 60 and 70° N showed that climate change may substantially change the dynamics of managed boreal forests in northern Europe. This is especially probable at the northern and southern edges of this forest zone. In the north, forest growth may increase, but the special features of northern forests may be diminished. In the south, climate change may create a suboptimal environment for Norway spruce. Dominance of Scots pine may increase on less fertile sites currently occupied by Norway spruce. Birches may compete with Scots pine even in these sites and the dominance of birches may increase. These changes may reduce the total forest growth locally but, over the whole of Finland, total forest growth may increase by 44%, with an increase of 82% in the potential cutting drain. The choice of appropriate species and reduced rotation length may sustain the productivity of forest land under climate change.



Eos ◽  
2022 ◽  
Vol 103 ◽  
Author(s):  
Katherine Kornei

In experiments conducted in Biosphere 2, invasive buffelgrass weathers higher temperatures and drought conditions better than its native brethren.



2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mirzeta Memišević Hodžić ◽  
Dalibor Ballian

This research aims to determine the interaction of the effects of provenance and habitat conditions on provenance tests on the growth of Scots pine on two experimental plots in Bosnia and Herzegovina. Provenance tests are located on plots with different ecological conditions and altitudes: Romanija Glasinac, 1000 m, and Gostović Zavidovići, 480 m. Both tests include 11 provenances and two clonal seed plantations with 10 families in each, and five repetitions. Tree heights and diameters at breast height were measured at the age of 21 years. Interactions were determined using multivariate analysis for measured traits. The highest average heights on the provenance test Glasinac had provenances Bugojno, Romanija Glasinac, and Šipovo (8.8 m), and on the Gostović provenance Rogatica (11.0 m). The highest average diameter at breast height on the Glasinac test had Šipovo provenance (13.9 cm) and on the Gostović test Bosanski Petrovac provenance (12.3 cm). Variance analysis showed statistically significant differences among provenances in terms of diameter at breast height and height values. Multivariate analysis showed the presence of interactions of effects of provenances and habitat conditions on provenance tests. For provenances that did not show interaction, it is recommended to use provenances that performed better in the given ecological conditions, and for those that showed interaction, it is necessary to choose those provenances which are expected to show better results in given conditions later in life. The obtained results are very important for the conservation activities of this species.



Author(s):  
Jens Kramshøj Flinker

        The purpose of this article is twofold: Existentialism as a philosophical discipline and ethical reference point seems to be a rare guest in ecocriticism. Based on an analysis of Lyra Koli's climate fiction Allting Växer (2018) this article argues that existentialism has something to offer to the ecocritical field. I make use of an econarratological approach, drawing on James Phelan's narrative ethics. Thus, I emphasize the article's second purpose, as narrative ethics is about reconstructing narratives own ethical standards rather than the reader bringing a prefabricated ethical system to the narrative. This reading practice can help to question the idea that some ethical and philosophical standards are better than others within ecocriticism—by encouraging scholars in ecocriticism to relate to what existentialism has to do with climate change in this specific case. In continuation of my analysis, I argue that Allting Växer is pointing at a positive side of existentialist concepts such as anxiety or anguish, that is, that there is a reflecting and changing potential in these moods or experiences. This existentialist framework contrasts with the interpretation of "Anthropocene disorder" (Timothy Clark) as the only outcome when confronting the complexity of the Anthropocene.



2021 ◽  
pp. 223-259
Author(s):  
Clive Gamble

What happened to the surviving time revolutionaries and their legacy? Knighthoods, high office, a peerage, and bespoke mansions all followed. France preserved Boucher de Perthes’s legacy better than England that of its time revolutionaries, whom it forgot. War, however, destroyed Abbeville in 1940 and with it Boucher de Perthes’s collections and public statue. Lubbock was the last to die in 1913, having seen the Piltdown forgery. Then follows an excursion into the development of the modern synthesis of human origins with scientific dates, a detailed deep-sea record of climate change and the ages of the sites they found on the Somme and at Hoxne. Changing views of our remote ancestors are shown in artists’ imaginings and through bestselling authors. The reticence of Prestwich and Evans to speculate was forgotten as deep history was fleshed out to resonate with the present. The chapter ends by placing the time revolution at the start of an interest in universal and deep history. The time revolutionaries changed our relationship with time and set in motion a dialogue with the past that continues to challenge and enthral.



Author(s):  
Philip Jenkins

My own interest in the topics of this book dates back a good many years. In fact, it predates the emergence of the modern field of climate history, or the identification of global warming as an incipient menace. In saying that, I am claiming no status as a prodigy, still less a prophet. Rather, in my teenage years, I read a great deal of speculative fiction, science fiction, in which themes of climate change and cataclysm have long percolated, at least since the latter years of the nineteenth century. We can debate how accurate the scientific analyses or predictions were in many of these works—in many cases, the level of accurate knowledge was minimal—but those works had the inordinate advantage of thinking through the human and cultural consequences of catastrophe, commonly speculating about religious dimensions. Obviously, some works succeeded better than others in that regard, but the essential project was critically important. If we are foretelling that the world will be assailed by lethal menaces, then we cannot fail to go on to imagine what the political or cultural consequences would or should be....



1970 ◽  
Vol 46 (4) ◽  
pp. 325-328
Author(s):  
A. H. Teich ◽  
M. J. Holst

Scots pine provenances from Russia were grown in Ontario at Longlac, Dorset and Chalk River, and in Saskatchewan at Prince Albert and Indian Head. After eight growing seasons in the field all provenances survived well. The three tallest, Orel, Woronesh and Kiev provenances, grew considerably taller than the others, and at Prince Albert, where native jack pine was also grown, the growth and survival of these provenances was also better than that of jack pine. If further studies show that this high performance persists and that stem form is commercially acceptable, seedlings from these three provenances may be useful for reforestation in those parts of Canada with a continental climate.



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