Les ripisylves du nord de l’Algérie : essai de synthèse synsystématique à l’échelle de la Méditerranée occidentale

Bensettiti, Farid; Lacoste, Alain

doi:10.3406/ecmed.1999.1869

Cited by 9 publications

(18 citation statements)

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“…europaea subsp europaea) grows mostly on well‐draining soils and in bioclimatic conditions ranging from semiarid to subhumid. In semiarid areas, wild olive trees can also grow beside ephemeral streams called Oued in the Maghreb and Barrancos in the Iberian Peninsula (Bensettiti and Lacoste 1999), as seen in Northern Africa and Southern Spain. Their analysis (Fig.…”

Section: The Survival Of the Olive Tree During The Last Glacial Maximmentioning

confidence: 99%

A Hydraulic Conductivity Model Points to Post-Neogene Survival of the Mediterranean Olive

Terral

Badal

Heinz

et al. 2004

Ecology

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Research on the subfossil record and paleoecology of Olea europaea suggests a new interpretation of its history and ecology with reference to the Mediterranean climate since the Neogene. New results are based on the wood anatomy of ancient and extant Olea and a model estimating hydraulic conductance established for wild forms belonging to Olea europaea subsp. europaea. These suggest that during glacial periods wild olive populations survived in protected microenvironments, particularly riparian habitats. Thereafter, the postglacial expansion of olive associated with climatic warming took place from these refuge areas. This new evidence suggests that the continued existence of Olea in Mediterranean areas since the Neogene was made possible either by preferential survival of Olea lineages adaptable to the Holocene climate or from enhanced adaptation to extreme environmental variation, a trait possibly originating from Tertiary predecessors and maintained in postglacial olive populations.

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Section: The Survival Of the Olive Tree During The Last Glacial Maximmentioning

confidence: 99%

A Hydraulic Conductivity Model Points to Post-Neogene Survival of the Mediterranean Olive

Terral

Badal

Heinz

et al. 2004

Ecology

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“…Moreover, in terms of genera our results also differ from those reported by the same study, in which Asteraceae (11 genera), Poaceae (10 genera), Rosaceae (9 genera), Lamiaceae (8 genera), Apiaceae (5 genera) and Liliaceae (5 genera) were reported to be the best-represented families, and Carex (9 species), Rubus (6), Cardamine (5), Ranunculus (5), Veronica (5), Polystichum (4), Dryopteris (3), Equisetum (3), Geranium (3), Poa (3), and Solanum 3were listed as the most speciose genera in alder forests. In turn, Bensettiti (1995) stated that the high abundance of Poaceae and Cyperaceae in alder forests reflects the degradation of some parts of these habitats into marshy prairies.…”

Section: Discussionmentioning

confidence: 99%

“…In Algeria, few studies have been conducted on alder forests. This is regrettable, as these forests constitute the largest ones in North Africa (Belouahem et al 2011, Bensettiti & Lacoste 1999, Géhu et al 1994, and few measures have been taken to protect these ecosystems. In fact, only two sites benefit from indirect conservation measures, based on freshwater bird richness (alder forests of Tonga, and those of Ain Khiar, were classified as RAMSAR sites in 1983 and 2002, respectively).…”

Section: Methodsmentioning

confidence: 99%

Vegetation heterogeneity of black alder forests in and around El-Kala Biosphere Reserve, northeastern Algeria

et al. 2019

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Background: Despite its ecological importance, the study of Algerian alder forests has been largely neglected, even though they represent the largest ones of their kind in North Africa. Moreover, few measures have been taken towards the protection of these ecosystems.Questions: How many species are present in the Algerian alder forests? What is the effect of soil properties on species richness and diversity of inventoried plants? Is its spatial patterns a result of soil variables variation?Studied species: Polypodiopsida, Gymnospermae, and Angiospermae.Study site and dates: El-Kala Biosphere Reserve (KBR), El-Tarf province, northeastern Algeria, from January 2016 to February 2017.Methods: Twenty-eight localities were sampled using the relevé method. Soil samples were taken from three points at each site. The relationship between species richness and soil factors was statistically evaluated using multiple linear regression and multivariate statistical analysis.Results: The inventory showed a total of 352 species that belong to 236 genera and 89 families. According to NMDS results, black alder forests were classified into two groups (marshy and the hilly, and the fluvial forests), in relation to plant species richness. No linear relationships between species richness and soil parameters were observed, except for OM (P = 0.013).Conclusion: The present study allowed us to perform an inventory of plant species present in alder forests and to understand its distribution among different habitat types, as well as those factors that affect its zonation. For this ecosystem, our study revealed that vegetation diversity is related to the variation of soil variables.

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“…baetica . Both alder forests grow under similar climatic conditions: warm and rainy Mediterranean areas with strong summer drought (Bensettiti & Lacoste ; Belouahem‐Abed et al. ).…”

Section: Discussionmentioning

confidence: 99%

“…baetica. Both alder forests grow under similar climatic conditions: warm and rainy Mediterranean areas with strong summer drought (Bensettiti & Lacoste 1999;Belouahem-Abed et al 2011). A comprehensive study of these southern Iberian and north African alder forests might lead to their separation in another suballiance Rhododendro-Alnenion Rivas Goday & Rivas-Mart ınez in Rivas-Mart ınez 1965.…”

Section: Suballiance Levelmentioning

confidence: 99%

Floodplain forests of the Iberian Peninsula: Vegetation classification and climatic features

Biurrun

Campos

García‐Mijangos

et al. 2016

Applied Vegetation Science

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Aims To produce a formalized classification of floodplain forests in the Iberian Peninsula and to assess their main bioclimatic gradients. Location Iberian Peninsula. Methods A data set with more than 3000 vegetation plots of floodplain forests was compiled from vegetation‐plot databases, while climatic data were derived from a digital climatic atlas. After filtering of plots according to their area and geographic stratification, 1892 plots were used to build a typology from association to order level using multivariate classification methods (Fuzzy C‐means, agglomerative hierarchical clustering). The phi fidelity index was used to determine the diagnostic species of the syntaxa in the proposed classification. Main climatic gradients were explored using non‐metric multidimensional gradient analysis, and ANOVA was carried out in order to define the bioclimatic features of Iberian floodplain forests. Results A total of 41 floodplain forest associations were distinguished for the Iberian Peninsula, grouped in nine suballiances, four alliances and two orders. Mediterraneity (summer aridity) was the main climatic driver, as it separates the temperate floodplain forests of the order Alno‐Fraxinetalia from the Mediterranean forests of the Populetalia albae. Continentality and precipitation were mainly relevant at alliance level, as they separated both the temperate alliances Alnion and Hyperico‐Alnion, the latter more oceanic, and the Mediterranean alliances Populion and Osmundo‐Alnion, the latter from more rainy areas. Temperature was an important driver at association level, as the associations included in the same suballiance or alliance differed regarding their thermicity index. Conclusions Our study develops the first formalized classification of Iberian floodplain forests and provides their bioclimatic diagnosis. One new alliance, Hyperico‐Alnion, is proposed for floodplain forests of the Cantabrian watershed. Mediterraneity, continentality and precipitation drive floodplain forest diversity at broad scale, while temperature is the main bioclimatic driver at fine scale. The proposed classification provides the scientific basis for the conservation of this habitat type, with high conservation priority, in southern Europe.

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Les ripisylves du nord de l’Algérie : essai de synthèse synsystématique à l’échelle de la Méditerranée occidentale

Cited by 9 publications

References 0 publications

A Hydraulic Conductivity Model Points to Post-Neogene Survival of the Mediterranean Olive

A Hydraulic Conductivity Model Points to Post-Neogene Survival of the Mediterranean Olive

Vegetation heterogeneity of black alder forests in and around El-Kala Biosphere Reserve, northeastern Algeria

Floodplain forests of the Iberian Peninsula: Vegetation classification and climatic features

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