Annotated Checklist and Distribution of the Vascular Plants of El Hierro, Canary Islands, Spain

Stierstorfer, Christian; Gaisberg, Markus Von

doi:10.2307/20358176

Cited by 21 publications

(38 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…All introduced naturalized aliens, as well as native nonendemics, were classified according to their biogeographical origin following Hohenester and Welss (1993); Schönfelder (1997, 2002); Acebes et al (2004), and Stierstorfer and von Gaisberg (2005). We distinguished three different groups of origin: (1) subtropical and tropical species, (2) Mediterranean species; and (3) temperate species.…”

Section: Plant-species Identification and Classificationmentioning

confidence: 99%

How do alien plants distribute along roads on oceanic islands? A case study in Tenerife, Canary Islands

et al. 2008

View full text Add to dashboard Cite

Islands are paradigms of the pervasive spread of alien plants, but little work has been done assessing pattern and cause of the distribution of such plants in relation to roads on oceanic islands. We studied richness, composition, and distribution of alien plants and compared them with native species along roads on Tenerife (Canary Islands). We studied a single road transect that sampled two contrasting wind-facing aspects (leeward versus windward) and ran from coastal Euphorbia scrubland through thermophilous scrubland to Makaronesian laurel forest at the top of a mountainous massif. We evaluated the effects of elevation, aspect, distance to urban nuclei, and several road-edge features (including road-edge width and management-implying disturbance intensity), using regression models, analysis of variance, and multivariate ordination methods. Richness of both endemics and native nonendemics was explained by elevation (related to well-defined vegetation belts), steepness of the edge slope, and cover of rocky ground. Despite a short elevational gradient (0-650 m), we found clear altitudinal zonation by biogeographic origin of both nonendemic natives and aliens, and altitudinal distribution of aliens followed the same zonation as that of natives. Alien species' richness was related to management intensity determining edge disturbance, roadedge width, and distance to the nearest urban nuclei (propagule sources). Different variables explained distribution patterns of natives, endemics, and aliens along roadsides on leeward and windward aspects. Altitude and aspect also had a strong influence on the frequency of life strategies (woody species, annuals and biennial/perennial herbs) of roadside plant communities. Due to harsher environmental filters operating on the leeward aspect, alien species were distributed along the altitudinal gradient in apparent consistency with general biogeographical affinities. Tropical/subtropical taxa showed exponential decrease with increasing elevation, Mediterranean taxa showed a unimodal response (i.e., maximum richness at mid elevation, minimum at the extremes of the gradient), and temperate taxa showed linear increase with elevation. Native but nonendemic species followed analogous trends to those of aliens. This suggests climatic matching as a prerequisite for successful invasion of this topographically complex island. Other road traits, such as edge width, slope steepness, soil cover, and road-edge disturbance intensity may play a complementary role, at a more local scale, to shape the distribution of alien plants on these island roads.

show abstract

Section: Plant-species Identification and Classificationmentioning

confidence: 99%

How do alien plants distribute along roads on oceanic islands? A case study in Tenerife, Canary Islands

et al. 2008

View full text Add to dashboard Cite

show abstract

“…Recent checklists were used for classification (von Gaisberg 2005;Stierstorfer and von Gaisberg 2006;Acebes et al 2010). …”

Section: Data Collectionmentioning

confidence: 99%

Diversity and distribution of the last remnants of endemic juniper woodlands on Tenerife, Canary Islands

et al. 2012

View full text Add to dashboard Cite

Identifying ecological requirements, species diversity patterns and distribution ranges of habitats of interest is an important task when developing conservation and restoration programs. The Canarian juniper woodland formed by Juniperus turbinata ssp. canariensis is listed as a priority habitat by the European Union. Although very common in the past, this vegetation type has suffered immense destruction and degradation over the last five centuries on the Canary Islands, especially on the largest most populated island of Tenerife. We evaluated the geographical distribution range of the last remnants of Canarian juniper woodlands on Tenerife and analyzed their ecological status, floristic composition and plant species diversity. Despite the degradation of the original vegetation, we still observed outstanding species diversity. Endemic species richness and number of typical habitat species were best predicted by summer rainfall, which seems to be the limiting factor for this habitat in the lower drier regions. Human disturbance has had a negative effect on endemic species richness but a positive effect on the distribution of alien plants, highlighting the potential threat to this habitat. Ecological characterization and floristic composition were most influenced by climatic factors related to the dichotomy of a humid windward and a drier leeward slope of the island and by altitude. However, vegetation structure and human disturbance also determined species composition. Environmental requirements indicated a circuminsular potential distribution of this habitat. Given the exceptional plant diversity, the scarcity of dense stands and the low protection status, immediate protection of the remaining stands and future restoration programs should be the priority for conservation strategies of this endemic vegetation type.

show abstract

“…These permanent plots will be continuously monitored in future years. Species were classified with regard to introduction status (exotic or native) and life form type (annual, perennial herbaceous, woody), following recently published checklists for the whole archipelago [1,50] and one for the island of El Hierro [53].…”

Section: Design Of the Experimentsmentioning

confidence: 99%

Reconstitution floristique et structurale d’une forêt de lauracées après coupe rase: une chronoséquence de 60 ans à La Palma (Îles Canaries)

et al. 2007

View full text Add to dashboard Cite

-We analyzed a post-clearcut chronosequence (0.5 to 60 years after harvesting) in the laurel forest of La Palma island (Canarian Archipelago) to determine the recovery of the stands with respect to species composition, richness, life strategies and structural parameters of the canopy. Multivariate analysis showed that exotic species, as well as annual ruderal species were confined to early-successional stages, while native perennials, typical of laurel forests, dominated the late-successional stages. Total species richness decreased significantly with time after clear-cutting. The relative fast recovery of understory native species may be due to low forest floor disturbance during harvesting. Shade-intolerant pioneer, pioneer-remnant and shade-tolerant late-successional species were the main life strategies of native tree species. Most structural parameters showed a continuous and monotonic increase (basal area, biomass) or decrease (density, percentage of photosynthetic biomass) during succession. Once clear-cutting, here performed with an interval of 8 years, is abandoned, the recovery of the laurel forest seems possible due to careful logging that protects the soil and a rapid asexual regeneration of native tree species, revealing this to be a sustainable management practice.forest management / laurel forest / species composition / structure / secondary succession Résumé -Reconstitution floristique et structurale d'une forêt de lauracées après coupe rase : une chronoséquence de 60 ans à La Palma (Îles Canaries). On a analysé une chronoséquence après coupe rase (0,5 à 60 ans après récolte) dans la forêt de lauracées de l'île de Palma (Archipel des Canaries) pour déterminer la reconstitution des peuplements pour ce qui concerne la composition spécifique, la richesse et les paramètres structuraux de la canopée. Une analyse multivariable a montré que les espèces exotiques aussi bien que les espèces rudérales étaient confinées aux premiers stades de la succession, tandis que les espèces naturelles pérennes typiques de la forêt de lauracées dominaient les derniers stades de la succession. La richesse spécifique totale a diminué significativement avec le temps après la coupe rase. La reconstitution relativement rapide des espèces naturelles du sous-bois peut être due à la faible perturbation de la surface du sol forestier au moment de la coupe rase. Les pionnières intolérantes à l'ombre, les pionnières rémanentes et les tolérantes à l'ombre des stades finaux de la succession constituaient les principales stratégies des espèces naturelles d'arbres. La plus grande partie des paramètres structuraux ont montré un accroissement continu et monotone (surface terrière, biomasse) ou décroissant (densité, pourcentage de la biomasse photosynthétique) pendant la succession. Autrefois réalisée ici avec un intervalle de 8 ans la coupe rase est abandonnée, la reconstitution de la forêt de lauracées semble possible grâce à une exploitation prudente des bois protégeant le sol et une régénération asexuée des espèces naturell...

show abstract

Annotated Checklist and Distribution of the Vascular Plants of El Hierro, Canary Islands, Spain

Cited by 21 publications

References 0 publications

How do alien plants distribute along roads on oceanic islands? A case study in Tenerife, Canary Islands

How do alien plants distribute along roads on oceanic islands? A case study in Tenerife, Canary Islands

Diversity and distribution of the last remnants of endemic juniper woodlands on Tenerife, Canary Islands

Reconstitution floristique et structurale d’une forêt de lauracées après coupe rase: une chronoséquence de 60 ans à La Palma (Îles Canaries)

Contact Info

Product

Resources

About