Tree-ring distinctness, dating potential and climatic sensitivity of laurel forest tree species in Tenerife Island

García-López, María Ángeles; Rozas, Vicente; Olano, José Miguel; Sangüesa‐Barreda, Gabriel; García‐Hidalgo, Miguel; Gómez‐González, Susana; López‐Rubio, Roberto; Fernández‐Palacios, José María; García‐González, Ignacio; García‐Cervigón, Ana I.

doi:10.1016/j.dendro.2022.126011

Cited by 5 publications

(3 citation statements)

References 77 publications

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“…Hence, this work, together with recent studies dealing with other important laurel forest trees [11,43], contributes to building baseline climate-growth relationships in an island forest under low climatic seasonality. Furthermore, future dendrochronological studies could be applied to other relevant native or introduced species (e.g., [10,11]), or to other Macaronesian islands (e.g., [13,[16][17][18][19]34]). Nonetheless, due to the high levels of within-stand variation, and to refine the climate-growth analysis, different approaches and proxies will have to be explored in the future, including early and latewood vessel area [159,160] since most native species are angiosperms.…”

Section: Discussionmentioning

confidence: 99%

“…Given the structural importance of the Lauraceae in Macaronesia [31][32][33][34], the need to enhance estimations of annual carbon sequestration, and the absence of climate-growth relationship studies for that family in the Azores, our research aimed to use dendroecological approaches to determine the basic climate-growth relationships in Laurus azorica. We compiled a large dataset of annually resolved ring width measurements derived from core samples collected from 203 trees in disjunct forest stands.…”

Section: Introductionmentioning

confidence: 99%

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Climate–Growth Relationships in Laurus azorica—A Dominant Tree in the Azorean Laurel Forest

Pavão

Jevšenak

Silva

et al. 2023

Forests

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Forests on oceanic islands, such as the Azores archipelago, enable interesting dendroclimatic research, given their pronounced climatic gradients over short geographical distances, despite the less pronounced seasonality. The Lauraceae play an essential ecological role in Macaronesian natural forests. An example is Laurus azorica (Seub.) Franco, a relevant species given its high frequency and physiognomic dominance in Azorean laurel forests. This study aims to quantify climate–growth relationships in L. azorica using a dendroecological approach. We sampled four stands at São Miguel and two stands at Terceira islands, for a total of 206 trees. Following standard dendrochronological methods and rigorous sample selection procedures, we obtained relatively low rbar values and high temporal autocorrelation. Using a stepwise Random Forest analysis followed by Generalized Linear Models calculation, we found prominent effects of present and previous year temperature, but a low precipitation signal on growth rings, with some model variation between stands. Our results agreed with previous observations for broad-leaved species with diffuse porous wood, contributing to increase the baseline dendroecological knowledge about Azorean forests. Due to the high levels of within- and between-stand variation, and to refine the climatic signal analysis, complementary approaches should be explored in the future.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Climate–Growth Relationships in Laurus azorica—A Dominant Tree in the Azorean Laurel Forest

Pavão

Jevšenak

Silva

et al. 2023

Forests

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“…Additionally, changes in the growth season's climate result in false rings, wedging rings, and intraannual density variations in wood (Rozendaal and Zuidema, 2011;Balzano et al, 2019). The results of many investigations (e.g., Haines et al, 2018;Farahat et al, 2022;Garcıá-Loṕez et al, 2022) support the difficulty of dendrochronological studies conducted in subtropical regions, where the complexity of ring boundary distinctness and treering analysis is greatly exacerbated by a combination of genetic and environmental factors, such as the diversity of habitats and local variations in climate seasonality. A significant knowledge gap on the response of North-African plants to climate change at the individual tree and population level still exists (Zuidema et al, 2013;Zhao et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Wood anatomy and dendrochronological potentiality of some woody shrubs from the southern Mediterranean coast in Egypt

Farahat

Gärtner

2023

Front. Plant Sci.

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In tropical and subtropical regions, much research is still required to explore the dendrochronological potential of their trees. This study aims to evaluate the anatomical structure and dendrochronological potential of three Mediterranean desert shrubs in Egypt (Lycium schweinfurthii var. schweinfurthii, L. europaeum, and Calligonum polygonoides subsp. comosum) supported by X-ray density. The results showed that the target species had distinct growth rings at macroscopic and microscopic levels. The vessel traits reflected the adaptability of each species with the prevailing arid climate conditions. After the exclusion of the non-correlated series, we obtained three site chronologies that cover the years 2013-2022 for L. schweinfurthii, 2012-2022 for L. europaeum, and 2011-2022 for C. comosum. The mean series intercorrelation was 0.746, 0.564, and 0.683 for L. schweinfurthii, L. europaeum, and C. comosum, respectively. The EPS (expressed population signal) values ranged from 0.72 to 0.80, while the SNR (species-to-noise ratio) ranged from 9.1 to 21.5. Compiling all series of L. schweinfurthii raised the EPS value to 0.86. The chronologies developed for the studied species were relatively short since we dealt with multi-stemmed shrubs. The average percentage difference between latewood density (LWD) and earlywood density (EWD) in C. comosum, L. europaeum, and L. schweinfurthii were 11.8% ± 5.5, 5.2%± 1.87, and 3.6% ± 1.86, respectively. X-ray densitometry helped in the precise determination of the ring borders of the studied species. The relationships between the radial growth of the studied species and the climate variables were weak to moderate but mostly not significant (i.e., r < 0.7). Generally, the radial growth of the target species had a weak to moderate positive correlation with temperature and precipitation during the wet season (winter), while negatively correlated with temperature for the rest of the year, particularly in summer. Our data agrees with earlier findings that ring formation starts at the beginning of the long vegetative stage, then the rest of the assimilated carbohydrates are directed to the flowering and fruiting at the end of the vegetative stages. For more efficient dendrochronological studies on subtropical and Mediterranean trees, we recommend carrying out xylogenesis studies, collection of phenological data, sampling 45-80 trees per species, using new techniques, and choosing homogeneous and close sites for wood sampling.

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Tree growth-climate relationship in the Azorean holly in a temperate humid forest with low thermal amplitude

et al. 2023

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Tree-ring distinctness, dating potential and climatic sensitivity of laurel forest tree species in Tenerife Island

Cited by 5 publications

References 77 publications

Climate–Growth Relationships in Laurus azorica—A Dominant Tree in the Azorean Laurel Forest

Climate–Growth Relationships in Laurus azorica—A Dominant Tree in the Azorean Laurel Forest

Wood anatomy and dendrochronological potentiality of some woody shrubs from the southern Mediterranean coast in Egypt

Tree growth-climate relationship in the Azorean holly in a temperate humid forest with low thermal amplitude

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