7 documents found, page 1 of 1

The iterative process of plant species inventorying for obtaining reliable biod...

We require representative data of species occurrence to explain plant diversity patterns, but most of the available information is incomplete and biased. To improve our knowledge, we suggest that species inventorying should be an iterative process encompassing the following: (1) the detection of taxonomic and geographical gaps; (2) the planning of a survey design to reduce such gaps; and (3) the evaluation of f...

Azorean Bryophytes : a preliminary review of rarity patterns

Os briófitos podem ser tão raros e estar tão ameaçados como os demais organismos do planeta, apesar de o seu pequeno tamanho, cores discretas e difícil identificação no campo poderem mascarar o seu verdadeiro estatuto de conservação. De facto, é reconhecido que cerca de um quarto de todos os briófitos da Europa estão efectiva ou potencialmente ameaçados. O primeiro “Livro Vermelho dos Briófitos da Europa” foi p...

Locais do inóspito : perspectivas de alunos dos Açores sobre grutas

Using taxonomically unbiased criteria to prioritize resource allocation for oce...

Oceanic islands have been the grand stage of documented extinctions. In view of limited resources, efficient prioritization is crucial to avoid the extinction of taxa. This work lists the top 100 management priority species for the European archipelagos of the Macaronesian region (Azores, Madeira and the Canary Islands), taking into account both their protection priority and their management feasibility. Bryoph...

Would species richness estimators change the observed species area relationship?

We evaluate whether the description of the species area relationship (SAR) can be improved by using richness estimates instead of observed richness values. To do this, we use three independent datasets gathered with standardized survey methods from the native laurisilva forest of the Azorean archipelago, encompassing different distributional extent and biological groups: soil epigean arthropods at eight forest ...

A perspectiva arquipelágica: Açores

"[…]. Dada a inexistência de um catálogo nacional ou regional de espécies ameaçadas, e considerando que muitas das espécies endémicas dos Açores, raras e sujeitas a várias ameaças, não se encontram abrangidas por directivas e convenções internacionais, nem foram alvo de avaliação por nenhum tipo de critérios (IUCN ou outros), houve necessidade de uma definição de prioridades em termos de acções de conservação b...

Age and growth, reproduction and diet of the red blenny Parablennius ruber (Ble...

Basic biological information for a sublittoral population of the red blenny Parablennius ruber is presented based on a two-year study involving 2350 specimens. The length-weight relationship was given by TW = 0.011 x TL2.963 (where TW = total weight, in g; TL = total length, in cm). Age at length data was inferred by modal analysis of the monthly length-frequency distributions. The parameters of the fitted von ...