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Carlos Neto

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Papers by Carlos Neto

O processo de reclamação dos sapais da Ria de Alvor (Portimão)

ABSTRACT

Ecology and phytosociology of endangered psammophytic species of the Omphalodes genus in western Europe

Http Dx Doi Org 10 1080 12538078 2014 981290, Jan 26, 2015

Omphalodes kuzinskyanae Willk. is an endangered annual plant of the family Boraginaceae, endemic ... more Omphalodes kuzinskyanae Willk. is an endangered annual plant of the family Boraginaceae, endemic to a narrow coastal area in the Lisbon region (Portugal). Omphalodes littoralis Lehm. occurs in northwest Spain (subsp. gallaecica) and northwest France (subsp. littoralis). Three approaches were used to assess the ecological requirements of O. kuzinskyanae: (1) physical and chemical characterization of their habitat soil; (2) phytosociological analysis; (3) comparison of several life history parameters under different light conditions. Germination experiments were conducted to evaluate seed dormancy. The results show that O. kuzinskyanae occurs in thin sandy soil with a substantial amount of organic matter and clay, mostly over limestone pavements. Phytosociological analysis shows that O. kuzinskyanae occurs both in sciophytic and heliophytic communities. Life history comparisons demonstrated that this plant has a strong preference for sciophytic conditions: under strong shade, plants have a higher survival rate, attain a greater height and width, and produce approximately nine times more seeds than in sunny conditions. In contrast with O. kuzinskyanae, published data on O. littoralis indicate that this species occurs in heliophytic conditions. This group of Omphalodes is possibly limited both in geographical distribution and habitat by its vulnerability to hydric stress. Scenarios are discussed that can explain the extensive gap separating the present ranges of the two species and their ecological differences. We propose two new syntaxa: Linario arenariae-Omphalodetum littoralis, Geranio purpurei-Galietum minutuli omphalodetosum kuzinskyanae.

Notas do Herbário Florestal do INIAV (LISFA): Fasc.XXXVI. Síntese do conhecimento taxonómico do género Salix L. em Portugal Continental

Nota: A nomenclatura, sinonímia e informação adicional relativa aos táxones e nototáxones citados... more

The Adiantetea class on the cliffs of SW Portugal and of the Azores

Phytocoenologia, May 31, 2007

Diversidade floristica das formações de Quercus suber em Portugal

Resumo: Foram analisados 130 inventários efectuados em sobreirais de Poterio agrimonioidis-Querco... more Resumo: Foram analisados 130 inventários efectuados em sobreirais de Poterio agrimonioidis-Querco suberis S., Asparago aphylli-Querco suberis S., Oleo sylvestris-Querco suberis S. e Teucrio baetici-Querco suberis S. Com o objectivo de estabelecer a relação entre estes bosques e o seu grau de conservação e diversidade, foi efectuada uma análise canónica de correspondências (CCA) e foram efectuados os cálculos relativos à diversidade florística (recorrendo ao índice de Shannon) e à diversidade em espécies com interesse para conservação. Efectuou-se ainda uma análise de regressão múltipla em que a riqueza em espécies endémicas ou com estatuto de protecção foi considerada a variável dependente. Individualizaram-se algumas espécies indicadoras dos bosques analisados: Stauracanthus genistoides, Thymus capitellatus, Lavandula lusitanica e Quercus lusitanica associadas aos bosques de Oleo sylvestris-Quercetum suberis; Cistus populifolius, Erica australis e Cytisus grandiflorus associadas aos bosques de Poterio agrimonioidis-Quercetum suberis. No total, registam-se 17 taxa com estatuto vulnerável, 10 taxa em perigo de extinção, 15 taxa incluídos no Anexo II da Directiva 92/43/CE, um dos quais prioritário, 4 taxa do Anexo IV e 4 do Anexo V da mesma Directiva. Destacam-se, ainda, 26 endemismos lusitanos, 4 dos quais em perigo de extinção e 8 com estatuto vulnerável. Da CCA verificou-se que grande parte dos táxones com interesse para conservação estão concentrados nas áreas onde a vegetação potencial diz respeito a sobreirais de Oleo-Querco suberis S., cuja riqueza florística e fitocenótica já foi descrita por ) e NETO (1999. Isto acontece apesar do uso florestal destes espaços e de estarem localizados no Superdistrito Sadense onde predominam os solos aluvionares ou derivados das areias podzolizadas. Quanto à diversidade específica, os valores mais elevados obtiveram-se nos inventários das séries Asparago-Querco suberis S. e Poterio-Querco suberis S.

Phylogenenetic approach of the section Bulbocodii D.C. of Narcissus based on cpDNA. A case of taxonomic inflation?

Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology, 2015

In this paper, we analyzed the phylogeny of the section Bulbocodii (genus Narcissus; Amarillydace... more In this paper, we analyzed the phylogeny of the section Bulbocodii (genus Narcissus; Amarillydaceae) using the matK and trnL-F fragments of cpDNA in order to review the validity of the recognized taxa. Our results indicate that Narcissus obesus should be considered a valid species, and that N. blancoi is a distinct taxon. In addition, seven previously recognized species, N. juressianus, N. subnivalis, N. graellsii, N. conspicuus, N. citrinus, N. nivalis, and N. quintanilhae, should be assigned to an infraspecific rank under N. bulbocodium, as they are not valid species. In addition, we analyzed the distribution of the three morphological characters widely used in the systematics of this section and found that their variation does not agree with the phylogenetic results, rendering these characters limited taxonomical utility. This result suggests that the section Bulbocodii shows high morphological lability, which can explain the proliferation of nominal species.

XXVIII: Allium ericetorumThore eGentiana pneumonanthe L. no Superdistrito Sadense, nova área de distribuição em Portugal continental

Silva Lusitana, Dec 1, 2001

OAllium ericetorum é um endemismo europeu que, em Portugal, apresenta uma área de distribuição cl... more

New Genetic Data on Genista Anglica L. Versus Genista Ancistrocarpa Spach in the Iberian Peninsula and Morocco. Phylogeographic Clues

1 -De Hoge Veluwe (Netherlands); 2 -East Sussex (Uni. King.); 3 -Noord-Brabant (Netherlands); 4 -... more 1 -De Hoge Veluwe (Netherlands); 2 -East Sussex (Uni. King.); 3 -Noord-Brabant (Netherlands); 4 -Pas-de Calais (France); 5 -Eifel (Germany); 6 -Normandie (France); 7 -Champagne (France); 8 -Los Ancares (Spain); 9 -Serra de Morais (Portugal); 10 -Sierra Cebollera (Spain); 11 -Sierra de Urbasa (Spain); 12 -Serra da Estrela (Portugal); 13 -Serra de Gredos (Spain); 14 -Eastern Pyrenees (Spain); 15 -Albarracin (Spain); 16 -Puebla Don Rodrigo (Spain); 17 -Sierra Madrona (Spain) Genista anglica subsp. ancistrocarpa 1 -Larache (Morocco); 2 -Bouchachen (Marocco); 3 -Doñana (Spain); 4 -Sado (Portugal); 5 -Montemuro (Portugal); 6 -Chaves (Portugal) Figure 2. Bayesian phylogram based concatenated sequences of ITS 1, 5.8S, ITS2 and ETS. Bayesian posterior probabilities, bootstrap values for maximum parsimony are separated by dashes, at left and right, respectively. The tip of each branch shows plants with the same haplotypes ITS 1, 5.8S, ITS2 and ETS.

Cartografía fitossociológica da vegetaçào do estuário do sado e costa da galé (Portugal)

Vegetacion Y Cambios Climaticos 2001 Isbn 84 8240 493 8 Pags 435 448, 2001

Bioindicators of erosive dynamics in beach and dune systems in the portuguese mainland coast

Pedological constraints controlling the occurrence of mire plant bioindicators from north Atlantic formerly frozen soils to present-day Mediterranean sandy wet habitats

ABSTRACT Unlocking the palaeoenvironmental context, in which present peaty sols in former cold re... more ABSTRACT Unlocking the palaeoenvironmental context, in which present peaty sols in former cold regions of Western Europe, may contribute to the understanding of the actual distribution of three acid-soil vascular plants. Likewise can the role played by similar soil and water conditions (due to other context) be the key to explain their expansion further South. The present work aims to compare the origins and traits of such similar ecotons and to verify how these vascular plants can be use as bioindicators for the presence of peaty soils, picking the proper variables and their geographical variation fits in the Ecological amplitude of the species. The soil and the water are the two compartmeents in which some of the variables might control the present-day distributions of the three taxa. The reactions of a certain number of soil samples carefully taken at shallow depths in the profiles of peaty soils of mires or peat-reach habitats, which cover more than fifty tiny to moderate sampled areas of western Europe (Atlantic Façade and the Iberian Península) and Northwestern Morocco, are being determined in the laboratory of the Geology Department of the University of Lisbon, where some characteristic mire-akin plant taxa have their southernmost range, somewhat in disharmony with meso-to thermomediterranean climates (Rivas Martínez, Global Bioclimatics). Two samples (A and B) were collected per site, the A corresponding to the presence of one of the three bioindicators, the B dug where the species ceases to be present. The present soil processes in the northern part of this sampling is in many cases related to a cold region, glaciated or under periglacial conditions during LGM, but the sedimentary and hydrologic analogies further south might help to explain how euro-siberian species can migrate that long and withstand present-day warmer and drier climates. The pH values of samples were plotted against the depth, and curves, correlations and other possible relationships will be sought, focusing on the obtained acidity in a depth of from zero to one foot, at which these plants normally install their root systems. The organic content, the percentages of clay, lime and sands the, total iron (Fe), and the anions, calcium, sodium are techniques to be employed.

New genetic data on Genista anglica L. versus Genista ancistrocarpa Spach (Fabaceae, Fabales) in the Iberian Peninsula and Morocco. Phylogeographic clues

Acta Botanica Malacitana, 2014

1 -De Hoge Veluwe (Netherlands); 2 -East Sussex (Uni. King.); 3 -Noord-Brabant (Netherlands); 4 -... more 1 -De Hoge Veluwe (Netherlands); 2 -East Sussex (Uni. King.); 3 -Noord-Brabant (Netherlands); 4 -Pas-de Calais (France); 5 -Eifel (Germany); 6 -Normandie (France); 7 -Champagne (France); 8 -Los Ancares (Spain); 9 -Serra de Morais (Portugal); 10 -Sierra Cebollera (Spain); 11 -Sierra de Urbasa (Spain); 12 -Serra da Estrela (Portugal); 13 -Serra de Gredos (Spain); 14 -Eastern Pyrenees (Spain); 15 -Albarracin (Spain); 16 -Puebla Don Rodrigo (Spain); 17 -Sierra Madrona (Spain) Genista anglica subsp. ancistrocarpa 1 -Larache (Morocco); 2 -Bouchachen (Marocco); 3 -Doñana (Spain); 4 -Sado (Portugal); 5 -Montemuro (Portugal); 6 -Chaves (Portugal) Figure 2. Bayesian phylogram based concatenated sequences of ITS 1, 5.8S, ITS2 and ETS. Bayesian posterior probabilities, bootstrap values for maximum parsimony are separated by dashes, at left and right, respectively. The tip of each branch shows plants with the same haplotypes ITS 1, 5.8S, ITS2 and ETS.

Novas ocorrências de Spahgnum auriculatum no sul de Portugal.: significado paleobiogeográfico

Acta Botanica Malacitana, 2009

Nouveautés Syntaxonomiques Concernant les Marais Salés du Portugal

Annual dune plant communities in the Southwest coast of Europe

Http Dx Doi Org 10 1080 11263504 2011 602729, Aug 22, 2011

The meaning of mainland Portugal beaches and dunes' psammophilic plant communities: a contribution to tourism management and nature conservation

Journal of Coastal Conservation, Jan 18, 2013

Due to their position of interface between the sea and land, the flora and vegetation of coastal ... more Due to their position of interface between the sea and land, the flora and vegetation of coastal beaches and dunes, occupy ecologically extreme, sensitive, unique and valuable habitats. The occurrence of a large number of endemic taxa and specific plant associations endowed with key ecological services and adapted to a stressful and harsh environmental gradient, gives them a high interest for nature conservation and an important role in sustainable territorial planning. However, such ecosystems are vulnerable to the disruption caused by several anthropogenic sources. Among other global threat factors, the inevitable sea rise caused by climate change and, at a local scale, the non-negligible implications of trampling caused by disorderly coastal touristic exploitation, growing construction pressure in the littoral, and a seasonal population boom in late spring and in summer, plus all derivate forms of pollution, are threat factors to their integrity. Therefore, a correct planning of the touristic economic activities requires the understanding of the vegetation composition and spatial distribution patterns, intrinsically determined by their biogeographic context in the Euro-Siberian or Mediterranean Regions. This comprehensive work, based on a broad phytogeographic study, brings together disperse information on plant communities of the Portuguese sandy coasts (beaches and dunes), by analysing floristic compositions, chorology and ecological characteristics, and matching them with the "Nature 2000" network habitats. Resilience and vulnerability are also studied. In a nature conservation perspective, a positive balance (and a sustainable co-existence) between the preservation of natural values and human development in the Portuguese coast, will benefit with the integration of this knowledge in coastal planning and management activities.

Ecossistemas Ribeirinhos dos Ambientes de Canyoning em Portugal

No perfil longitudinal do curso de água principal, uma bacia hidrográfica apresenta normalmente 3... more No perfil longitudinal do curso de água principal, uma bacia hidrográfica apresenta normalmente 3 sectores distintos ao nível da hidrogeomorfologia. O sector montante, onde domina a erosão, e que corresponde à área das cabeceiras, é aquele que oferece os melhores cenários para a prática do canyoning. O sector médio também poderá oferecer boas condições, mas a jusante, nas terras baixas, estas já serão mais raras.

An overview of the Pegano harmalae-Salsoletea vermiculatae Br.-Bl. & O. Bolós 1958 vegetation class in continental Portugal

Biogeografia de Portugal Continental

Sintaxonomia das comunidades das turfeiras do superdistrito Sadense