Competition modulates the response of growth to climate in pure and mixed Abies pinsapo subsp. Maroccana forests in northern Morocco

Navarro-Cerrillo, R.M.; Manzanedo, Rubén D.; Rodriguez-Vallejo, Carlos; Gazol, Antonio; Palacios-Rodríguez, Guillermo; Camarero, J. Julio

doi:10.1016/j.foreco.2019.117847

Cited by 34 publications

(26 citation statements)

References 79 publications

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“…distant by only 35 kms from east to west). Investigating a larger area of Montpellier Maple in Algeria could reveal additional morphotypes and trends of variation since Nikzat-Siahkolaee et al, (2021), for example, found a relationship between geographical gradients and the three leaf morphotypes recognized in A. cappadociccum of Iran.…”

Section: Discussionmentioning

confidence: 99%

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Leaf heteroblasty and morphotypes of Acer monspessulanum (Djurdjura, Algeria) as revealed by traditional and geometric morphometrics

Chikhaoui¹,

Said²,

Schirone³

et al. 2022

Studia UBB Biologia

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The genus Acer which is largely distributed in the Northern hemisphere is represented in Algeria by four species of which Acer monspessulanum is the most common. These four species and their putative hybrids are coexisting in many parts of their Algerian distribution range but their leaf morphology has not been the subject of quantitative analyses despite the interest of such kind of data in taxon delineation particularly in the case of interspecific hybridization. The present work is the first step towards a quantitative analysis of leaf morphology in Acer species in Algeria. We presently relied on traditional and geometric morphometrics methods in the study of Acer monspessulanum subsp. monspessulanum leaf morphology in two sites of the Djurdjura Mountain with consideration of tree and within-shoot effects. The results showed congruence between the two methods which both highlighted the presence of a marked heteroblasty. Basal leaves are twice as large as apical ones for all measured leaf features. The petiole is longer than the blade in basal leaves and inversely in apical ones. The median leaves have intermediate values. The results revealed also the coexistence of two contrasted leaf morphotypes on distinct trees of both sites.

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Section: Discussionmentioning

confidence: 99%

“…granatense (Boiss.) Font Quer & Rothm (Fennane et al, 2014), mainly as understory species of Pinapo fir, Atlas cedar and oak forests (Benabid, 2000;Navarro-Cerrillo et al, 2013;Navarro-Cerrillo et al, 2020). While in Tunisia, only A. monspessulanum L. subsp.…”

Section: Introductionmentioning

confidence: 99%

Leaf heteroblasty and morphotypes of Acer monspessulanum (Djurdjura, Algeria) as revealed by traditional and geometric morphometrics

Chikhaoui¹,

Said²,

Schirone³

et al. 2022

Studia UBB Biologia

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“…Understanding the temporal-spatial variability of tree radial growth and ecological response is the basis for assessing forest vulnerability in sight of climate change (Venegas-González et al, 2018;Wang et al, 2019Wang et al, , 2020. Because of their single species and structure, plantation forests are expected to be more vulnerable to climate change than natural forests (Navarro-Cerrillo et al, 2019;Santini et al, 2020;Camarero et al, 2021). The Loess Plateau has experienced long-term climate changes and human activities, resulting in the destruction of natural forests, and severe soil erosion (Feng et al, 2016;Li et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

The Characteristics of Radial Growth and Ecological Response of Caragana korshinskii Kom. Under Different Precipitation Gradient in the Western Loess Plateau, China

et al. 2022

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Understanding the temporal-spatial variability of tree radial growth and ecological response is the basis for assessing forest vulnerability in sight of climate change. We studied stands of the shrub Caragana korshinskii Kom. at four sampling sites (natural forest CL and plantation forests XZJ, CK and TPX) that spanned the different precipitation gradient (180–415 mm) across China’s western Loess Plateau, and demonstrated its radial growth dynamics and ecological response. We found that the growth of natural C. korshinskii in arid regions have adapted and cope with regional environmental changes and radial growth was less affected by drought stress. However, the growth of planted C. korshinskii was significantly affected by drought stress in arid and semi-arid regions, especially during the growing season (from June to September). Variations in radial growth rates and growth indicators such as shrub height, canopy area are consistent with the climate-growth relationship. With increase of precipitation, the limiting of drought on the growth of planted C. korshinskii gradually decreased and the amount of radial growth variation explained by drought decreased from 53.8 to 34.2% and 22.3% from 270 to 399 and 415 mm of precipitation, respectively. The age-related radial growth trend shows that radial growth increased until 4 years of age, then decreased rapidly until 12–14 years of age, and then eventually tend to stabilized. In the context of climate warming and humidification, increased precipitation and regular branch coppicing management at around 12 years old will help to mitigate the limitation of drought on the growth of C. korshinskii. Moreover, the initial planting density should be tailored to local precipitation conditions (below 5,000 shrubs per hectare). The above results have important practical significance for the maintenance of the stability and sustainable management of plantation forests in the western Loess Plateau.

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“…The objective of this study is to identify the interspecific interaction through a niche overlap analysis [29,30]. Pinus nigra Arnold was selected among the mountain conifers distributed in the Western Mediterranean due to its ecological affinity with C. atlantica [31][32][33][34]. Likewise, the distribution of both species in the Iberian Peninsula was explored and the location of the possible common area was identified, both currently and in two moments in the past, Last Glacial Maximum (LGM; 21 ka) and Holocene Climate Optimum (HCO; 6 ka).…”

Section: Introductionmentioning

confidence: 99%

Biological Interaction as a Possible Ultimate Driver in the Local Extinction of Cedrus atlantica in the Iberian Peninsula

et al. 2022

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The presence of Cedrus atlantica on the European continent, including, especially, the determination of the time of its disappearance from the Iberian Peninsula, is one of the most controversial issues in recent decades regarding the successive extinction of conifers in the Western Mediterranean. This work propounds the possibility that C. atlantica and Pinus nigra could have co-habited in the past, mutually excluding each other in the areas with suitable conditions for both species, where, ultimately, the one that was the most competitive would have remained. The niche overlap in the two-dimensional ecological space was analyzed. In addition, the potential distribution of both species in the Western Mediterranean today and two past periods (Last Glacial Maximum and Mid-Holocene) was modeled to identify their common geographic area of distribution. The species showed very well differentiated niches and a distribution of their habitats virtually segregated by continents since the Mid-Holocene (P. nigra in Europe and C. atlantica in Africa), which responds to differences in climatic affinities. However, the contact of the bordering areas of their distributions in the Baetic mountain range suggests that C. atlantica could have maintained its presence in the Iberian Peninsula until recent times. P. nigra would have displace it in later stages due to its greater prevalence on the continent, so it would have had greater opportunities to occupy the available space.

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Competition modulates the response of growth to climate in pure and mixed Abies pinsapo subsp. Maroccana forests in northern Morocco

Cited by 34 publications

References 79 publications

Leaf heteroblasty and morphotypes of Acer monspessulanum (Djurdjura, Algeria) as revealed by traditional and geometric morphometrics

Leaf heteroblasty and morphotypes of Acer monspessulanum (Djurdjura, Algeria) as revealed by traditional and geometric morphometrics

The Characteristics of Radial Growth and Ecological Response of Caragana korshinskii Kom. Under Different Precipitation Gradient in the Western Loess Plateau, China

Biological Interaction as a Possible Ultimate Driver in the Local Extinction of Cedrus atlantica in the Iberian Peninsula

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