scholarly journals Macrofungi of Mata da Margaraça (Portugal), a relic from the Tertiary Age

2019 ◽  
Vol 7 ◽  
Author(s):  
Bruno Natário ◽  
Rogério Louro ◽  
Celeste Santos-Silva

Mata Nacional da Margaraça represents a rare example where the Atlantic climate influences the perpetuity of a small enclave of a previously widespread laurel forest. The higher relative humidity values (> 80%), which are almost constant all year long and the mild temperatures, rarely exceeding 30°C, even in the dry season (June to September), create an insular-like effect. The biological communities of Margaraça exhibit a transitory character. The forest is dominated by Quercus robur and Castanea sativa, yet Quercus suber, although less frequent, can also be found. The laurel species, such as Viburnum tinus, Ilex aquifolium, Laurus nobilis and the Portuguese endemic Prunus lusitanica ssp. lusitanica, relics from the ancient Portuguese Tertiary, comprise the understorey. The present work represents, to the best of our knowledge, the first regional macrofungal species list of the Mata da Margaraça published to date. The recent fires that occurred in the area have provided the opportunity to study the post-fire communities. The surveys were carried out in 2004 and later in 2018-2019. A total of 271 species were registered as belonging to Basidiomycota (≈ 80%) and Ascomycota (≈ 20%). The most represented Basidiomycota families were Russulaceae, Mycenaceae and Agaricaceae and the most represented Ascomycota families were Pyronemataceae and Pezizaceae. The new records to Portugal add up to a total of 88 species and another 116 species are new records to the province of Beira Litoral. Post-fire fungi account for 17 of the total of 271 species registered in these studies and most of these species are new to Portugal.

Zootaxa ◽  
2004 ◽  
Vol 541 (1) ◽  
pp. 1 ◽  
Author(s):  
ODALISCA BREEDY ◽  
HECTOR M. GUZMAN

Four new shallow water species of the genus Pacifigorgia were found in recent surveys along the Pacific coast of Panama. One of the species was only found in dense patches at two shallow seamount-like localities inside the Coiba National Park, Gulf of Chiriqu . Two other species were patchily distributed at several localities in the Gulf of Chiriqu . A fourth species was widely distributed around the gulfs of Chiriqu and Panama encompassing a broad range of habitats and depths. The new species are described and illustrated in detail with scanning electron micrographs (SEM) of the sclerites, and colour photographs of the colony forms. The suspected occurrence of a particular Pacifigorgia species for this region is confirmed and two other new records are added to the species list. With the new four species, a total of 15 are established for Panama, making 31 species for the eastern Pacific to date.


Check List ◽  
2014 ◽  
Vol 10 (2) ◽  
pp. 299 ◽  
Author(s):  
Lenize Batista Calvão ◽  
Paulo De Marco Júnior ◽  
Joana Darc Batista

Odonates are found in all freshwater environments, and are specially species rich in tropical freshwater ecosystems. Currently about 800 odonate species are known to Brazil, but only 29% of the Brazil territory have been surveyed for this group. Here we provide a species list with information on distribution and new records for Odonata in nine streams in Nova Xavantina, Mato Grosso, Central Brazil. We used the scan procedure with a fixed area for three days in each stream between 10:00 and 14:00h. We collected 1038 dragonfly specimens belonging to 67 species, which represents 8% of the known Brazil odonate fauna. Additionally, five new records for the study area are presented.


Author(s):  
D. W. Minter

Abstract A description is provided for Balsamia platyspora. Some information is given on its habitat (e.g. woodland and forest soils), traditional uses and conservation status, along with details of its transmission (spore dispersal), geographical distribution (North America: USA (Oregon) and Europe: Denmark, Estonia, France, Germany, Great Britain, Hungary, Norway, Poland, Russia (Moscow oblast), Romania and Sweden) and hosts (Abutilon sp., Acer platanoides, Corylus avellana, Fagus sylvatica, Fagus sp., Hedera helix, Ilex aquifolium, Larix sp., Laurus sp., Quercus robur, Pinus ponderosa, Pseudotsuga menziesii, Tilia sp. and Ulmus glabra).


Talanta ◽  
1995 ◽  
Vol 42 (12) ◽  
pp. 1919-1923 ◽  
Author(s):  
F. Rey ◽  
M. Pérez-Asenjo ◽  
A.A.S.C. Machado ◽  
P. Facal ◽  
M.A. Ferreira ◽  
...  

2020 ◽  
Vol 12 (24) ◽  
pp. 4013
Author(s):  
Ram Sharan Devkota ◽  
Richard Field ◽  
Samuel Hoffmann ◽  
Anna Walentowitz ◽  
Félix Manuel Medina ◽  
...  

Biological invasions are a major global threat to biodiversity and often affect ecosystem services negatively. They are particularly problematic on oceanic islands where there are many narrow-ranged endemic species, and the biota may be very susceptible to invasion. Quantifying and mapping invasion processes are important steps for management and control but are challenging with the limited resources typically available and particularly difficult to implement on oceanic islands with very steep terrain. Remote sensing may provide an excellent solution in circumstances where the invading species can be reliably detected from imagery. We here develop a method to map the distribution of the alien chestnut (Castanea sativa Mill.) on the island of La Palma (Canary Islands, Spain), using freely available satellite images. On La Palma, the chestnut invasion threatens the iconic laurel forest, which has survived since the Tertiary period in the favourable climatic conditions of mountainous islands in the trade wind zone. We detect chestnut presence by taking advantage of the distinctive phenology of this alien tree, which retains its deciduousness while the native vegetation is evergreen. Using both Landsat 8 and Sentinel-2 (parallel analyses), we obtained images in two seasons (chestnuts leafless and in-leaf, respectively) and performed image regression to detect pixels changing from leafless to in-leaf chestnuts. We then applied supervised classification using Random Forest to map the present-day occurrence of the chestnut. Finally, we performed species distribution modelling to map the habitat suitability for chestnut on La Palma, to estimate which areas are prone to further invasion. Our results indicate that chestnuts occupy 1.2% of the total area of natural ecosystems on La Palma, with a further 12–17% representing suitable habitat that is not yet occupied. This enables targeted control measures with potential to successfully manage the invasion, given the relatively long generation time of the chestnut. Our method also enables research on the spread of the species since the earliest Landsat images.


2020 ◽  
Vol 41 (3) ◽  
pp. 241-253
Author(s):  
Ali Nafiz Ekiz ◽  
Elisabeth Geiser ◽  
Ali Gök ◽  
Özgür Durmuş Kaya
Keyword(s):  

Zootaxa ◽  
2014 ◽  
Vol 3795 (2) ◽  
pp. 101 ◽  
Author(s):  
MIRZA P. ORTEGA-OLIVARES ◽  
LUIS GARCÍA-PRIETO ◽  
MARTÍN GARCÍA-VARELA
Keyword(s):  

2004 ◽  
Vol 118 (4) ◽  
pp. 530 ◽  
Author(s):  
Greg R. Pohl ◽  
David W. Langor ◽  
Jean-François Landry ◽  
John R. Spence

Lepidoptera were collected, primarily via UV light trap, for three seasons in the boreal mixedwood forest near Lac La Biche, Alberta. A total of 11,111 specimens were collected, representing 41 families and 438 species. A species list with flight times is presented. The total Lepidoptera community was estimated to be 546 ± 23.34 species. Abundance and species richness peaked in late July. Thirty-five species constitute new records for Alberta, while one species, Acanthopteroctetes bimaculata, is a new record for Canada, and the first record of the family Acanthopteroctetidae in Canada.


1983 ◽  
Vol 61 (4) ◽  
pp. 822-831 ◽  
Author(s):  
Kathryn A. Coates

Four species of the enchytraeid oligochaete genus Marionina from intertidal habitats are added to the British Columbia species list: Marionina klaskisharum sp. nov., M. nevisensis (Righi and Kanner, 1979), M. southerni Cernosvitov, 1937, and M. glandulifera (Jansson, 1960). Marionina nevisensis is asetate; M. klaskisharum has setal bundles ventrally in II to V, each represented by a single seta; M. glandulifera has only ventral, bisetate setal bundles; and M. southerni has lateral and ventral bisetate bundles in all segments except laterally in II. Marionina nevisensis is elevated from a subspecies of M. achaeta Lasserre, 1964 because of structural differences of their spermathecae and seminal vesicles. The ranges of M. charlottensis Coates, 1980 and M. nevisensis Coates, 1980 are extended, respectively, south to northern California and to include the entire British Columbia coastline.


2021 ◽  
Vol 8 ◽  
Author(s):  
Rachel E. Boschen-Rose ◽  
Ana Colaço

Highly specialised biota occurring at hydrothermally active vents on the northern Mid-Atlantic Ridge (nMAR: from south of Iceland to the Equator) have been the subject of numerous research projects over the 36-year period since these habitats were first discovered in the region. When hydrothermal activity ceases, biota endemic to hydrothermally active habitats are lost, and a new biota colonise these sites. Little is known about the biota colonising hydrothermally inactive sulphide habitats on the nMAR, although these sites may be the target of deep-sea mining within the next decade. In this review, we seek to clarify the current knowledge of biological communities colonising hydrothermally active habitats and inactive sulphide habitats on the nMAR. To achieve this, we (1) used a systematic review process to update the species list of benthic invertebrates associated with hydrothermally active habitats, (2) conducted a regional biogeographic analysis of hydrothermally active vent fields on the nMAR, (3) undertook a comprehensive literature review to provide a descriptive account of biological communities, and (4) identified key knowledge gaps in the current understanding of nMAR hydrothermally active and inactive ecosystems. Our updated species list increases the number of benthic invertebrates recorded from hydrothermally active habitats on the nMAR to 158 taxa. Our regional biogeographic analysis separates nMAR hydrothermal vent fields into distinct clusters based on depth/latitude and chimney composition. Vent fields close to the Azores (Menez Gwen, Lucky Strike, Rainbow) formed a separate cluster from those at greater depths south of the Azores (Broken Spur, TAG, Snake Pit, Logatchev, and Ashadze-1). Moytirra, located north of the Azores, clustered separately, as did Lost City with its unique carbonate chimneys. We present detailed information on the biological communities at hydrothermally active and inactive habitats in this region, and discuss the information available on the diversity, ecosystem function, trophic relationships, connectivity, temporal variability, and resilience and recovery of these communities. Many knowledge gaps still exist, with detailed information needed on all aspects of the biological communities at hydrothermally active habitats and inactive sulphide habitats on the nMAR to understand and predict impacts from natural and human-induced disturbances in the region.


Sign in / Sign up

Export Citation Format

Share Document