Document type
Journal articles
Document subtype
Full paper
Title
Freshwater large branchiopods in Portugal: an update of their distribution
Participants in the publication
Margarida Machado (Author)
centro de ciências do mar do algarve
Luís Cancela da Fonseca (Author)
CTA - Centro de Ciências e Tecnologias da Água, Universidade do Algarve
MARE
Margarida Cristo (Author)
FACULDADE DE CIÊNCIAS E TECNOLOGIA DA UNIVERSIDADE DO ALGARVE
centro de ciências do mar do algarve
Summary
This study is based largely on 20 years of field and laboratory work, with surveys conducted by the authors and some other researchers. During this period several studies dealing with freshwater large branchiopods (FLB) were carried out, resulting in scientific publications and project reports. The distribution of FLB in Portugal was presented in 2 international scientific meetings, but apart from a first paper by Vianna-Fernandes in 1951 and an update done by ourselves in 1999 concerning the southwest Portugal, no other information has been published. Therefore, this work intends to bring up to date the known distribution of this faunal group in freshwater temporary systems. This is pertinent because of the recent revision of the taxon Triops cancriformis on the basis of genetic analyses. The Portuguese populations were assigned either to the Portuguese endemism T. vicentinus, or to T. baeticus, the more widely spread Iberian species, both belonging to the T. mauritanicus complex. Furthermore, a new species, Tanymastigites lusitanica was found and described in Portugal. More recently, a male free (or, at least, a strongly female-biased) metapopulation of T. cancriformis was discovered in a rice field in the central region of Portugal. Here we present an updated status of FLB species of Portuguese temporary lentic systems and their distribution, plotted on a UTM (10 × 10 km) grid. A total of 505 sites (temporary ponds or assemblages of closely located, not individual temporary pools) have been surveyed (455 by us). In 241 of these (47.7%) at least one species of FLB was found on at least one occasion. Of the 505 sites, only 87 are located north of the Tagus River and of these, at least one species was found in only 17 (19.5%). South of the Tagus River (Alentejo and Algarve), 53.6% of the sites were inhabited by at least one species. This list comprises 7 anostracans, 2 spinicaudatans and 4 notostracans, including 3 species endemic to the Iberian Peninsula and another 3 to Portugal.\n
Date of Publication
2017-06
Where published
Limnetica
Publication Identifiers
ISSN - 0213-8409
Address
Madrid, Spain
Publisher
Asociacio?n Ibe?rica de Limnologi?a
Number of pages
18
Starting page
567
Last page
584
Document Identifiers
DOI -
https://doi.org/10.23818/limn.36.22
URL -
http://www.limnetica.net/es/freshwater-large-branchiopods-portugal-update-their-distribution
Keywords
Temporary ponds
Anostracans
Notostracans
Spinicaudatans
Endemic species
Conservation status