Environmental Factors Affecting the Distribution of Lichens on Granitic Monuments in the Iberian Peninsula

1999 ◽  
Vol 31 (3) ◽  
pp. 291-305 ◽  
Author(s):  
B. Prieto ◽  
T. Rivas ◽  
B. Silva
Keyword(s):  
Environmental Factors ◽  
Iberian Peninsula ◽  
Species Distribution ◽  
Structural Complexity ◽  
Environmental Parameters ◽  
Bioindicator Species ◽  
Test Species ◽  
Factors Affecting ◽  
Lasallia Pustulata ◽  
Central Portugal

AbstractThe phytosociology of lichens colonizing granitic churches and dolmens in Galicia (N.W. Spain) and Alentejo (central Portugal) was studied so as to identify (a) a group of species whose frequency on these structures would make them potentially useful as test species for the evaluation of biocides used for conservation, (b) environmental factors likely to control species distribution, and (c) species that may be useful as bioindicators of environmental factors in this kind of construction in the region studied. Chief among the factors correlating with species distribution is the class of structure (church or dolmen), which is attributed to the probable influence of this factor on environmental parameters affected by structural complexity, the presence of non-granitic materials and the influence of man in the immediate surroundings. The bioindicator species most sensitive to this complex of parameters appear to be three species found only on churches (Caloplaca citrina, Sarcogyne davits and Verrucaria macrostoma) and the most widespread of the species found only on dolmens (Lasallia pustulata). Other important factors, probably affecting the influence of class of structure, are pH and the availability of nitrogen and moisture.

Floristic study and assessment of the environmental factors governing the distribution of riparian plants in the Zat sub-Basin: Tensift Watershed, Morocco

2020 ◽  
Vol 45 (2) ◽  
pp. 7900-7915
Author(s):  
Mostakim Lahcen ◽  
Fetnassi Nidal ◽  
Ghamizi Mohamed
Keyword(s):  
Environmental Factors ◽  
Pearson Correlation ◽  
Ecological Status ◽  
Environmental Parameters ◽  
Quality Parameters ◽  
Phosphorus Concentration ◽  
Factors Affecting ◽  
Riparian Plants ◽  
Emergent Plants ◽  
Significant Difference

Measuring the phytodiversity and determining environmental factors affecting the abundance and distribution of riparian plants of Zat sub-basin in Morocco were carried out in this study. A hypothesis was tested whether there is any statistically significant difference in environmental parameters and plants communities among the Zat River and its tributaries. For this purpose, water quality parameters such as temperature, pH, salinity, electrical conductivity, Dissolved Oxygen, nitrate and phosphorus concentration, and riparian plants diversity were estimated at 17 stations along the Zat River and its tributaries during the periods (2018 and 2019). The Canonical Correspondence Analysis (CCA) and Pearson correlation were preformed to assess the relationship between environmental parameters, and the distribution and abundance of riparian plants inventoried. The presence of 113 species was recorded, distributed between 43 families and 97 genera, 9 of which were floating-leaved, 24 submerged, and 80 emergent plants. The rare and threatened species inventoried were represented by 7 taxa, whereas 6 species are reported as endemic. Raunkiaer classification showed a dominance of therophytes (38.39%) over the other groups. According to CCA, the abiotic parameters (DO, elevation, salinity and nitrate concentration) were statistically significant parameters governing the distribution and abundance of the riparian plants inventoried. The results obtained reveal the state of the riparian vegetation in the Zat subBasin, therefore we can consider them as a reliable component for the assessment of the ecological status of the aquatic environment.

Environmental Assessment in Manuscripts Library and Storages of Semi-Active Record at Sultanate of Oman

2013 ◽  
Vol 9 (3) ◽  
pp. 65-81
Author(s):  
Nahed Salem ◽  
Sabah Abdul-Wahab ◽  
Sappurd Ali
Keyword(s):  
Environmental Factors ◽  
Environmental Parameters ◽  
International Standards ◽  
Indoor Environments ◽  
Sultanate Of Oman ◽  
Document Collections ◽  
Factors Affecting ◽  
Archival Collection ◽  
Active Record

Indoor environmental factors have been associated with deterioration of vital library and archival assets. The assessment of environmental factors affecting the library and document collections due to their inappropriate levels was the main objective of current study. In order to fulfill this objective the measurements of indoor environmental parameters were taken in manuscripts library and documents storage buildings of various Ministries of Sultanate of Oman. The measured values of these parameters were compared with the permitted values defined in various international standards/guidelines. The results of the study showed that the observed levels of environmental factors inside these buildings were not within the stipulated limits. The quality of indoor air at the studied locations was not appropriate for long term protection and preservation of their precious collections. Hence some preventive measures must be taken to safeguard these documentary assets. Practical implications - The indoor environments of library and archival collection buildings are very important for the protection and preservation of documentary assets. The study provides very useful information about the harmful indoor environmental factors and their effects on vital library and archival collections. This work would definitely help the concerning authorities to take remedial measures to control the inappropriate levels of these factors.

Environmental Factors Affecting Survival and Growth of Vibrio parahaemolyticus. A Review

1975 ◽  
Vol 38 (8) ◽  
pp. 476-480 ◽  
Author(s):  
L. R. BEUCHAT
Keyword(s):  
Environmental Factors ◽  
Water Activity ◽  
Vibrio Parahaemolyticus ◽  
Environmental Parameters ◽  
Lethal Effects ◽  
Factors Affecting ◽  
Salinity Water ◽  
Survival And Growth ◽  
Effects Of Temperature

Effects of temperature, salinity, water activity, and pH on survival and growth of Vibrio parahaemolyticus are reviewed. Maximum and minimum tolerances to these environmental factors are summarized, with special emphasis on conditions which exert stress or lethal effects on the organism. Behavior of V. parahaemolyticus as influenced by the interaction of environmental parameters is discussed.

Environmental factors affecting the nursery function for fish in the main estuaries of the Gulf of Cadiz (south-west Iberian Peninsula)

2020 ◽  
Vol 737 ◽  
pp. 139614
Author(s):  
J.M. Miró ◽  
C. Megina ◽  
I. Donázar-Aramendía ◽  
M.J. Reyes-Martínez ◽  
J.E. Sánchez-Moyano ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Iberian Peninsula ◽  
Gulf Of Cadiz ◽  
Factors Affecting ◽  
South West ◽  
Gulf Of Cádiz

Geographical and environmental factors affecting the distribution of wintering black storks Ciconia nigra in the Iberian Peninsula

2014 ◽  
Vol 45 (5) ◽  
pp. 514-521 ◽  
Author(s):  
Luis Santiago Cano ◽  
Carlos Pacheco ◽  
Pablo Refoyo ◽  
José Luis Tellería
Keyword(s):  
Environmental Factors ◽  
Iberian Peninsula ◽  
Factors Affecting ◽  
Ciconia Nigra

Distribution, diversity and some ecological characteristics of benthic amphipods in the Kapidağ Peninsula (Marmara Sea, Turkey)

2015 ◽  
Vol 44 (1) ◽  
Author(s):  
Aysegul Mulayim ◽  
Saltuk Buğra Arısal ◽  
Hüsamettin Balkıs
Keyword(s):  
Environmental Factors ◽  
Dissolved Oxygen ◽  
Species Distribution ◽  
Abundant Species ◽  
Amphipod Species ◽  
Marmara Sea ◽  
Soft Bottom ◽  
Factors Affecting ◽  
Bottom Sampling ◽  
Number Of Individuals

AbstractThe aim of this study was to determine the environmental factors affecting the fauna and the distribution of benthic amphipod species occurring on the Kapıdağ Peninsula, which is located in the south of the Marmara Sea. A total of 31 amphipod species were identified during the course of this study. In both seasons, Jassa marmorata (Holmes, 1905) and Protohyale schmidtii (Heller, 1866) were the most abundant species. During the study, temperature varied between 11.0 and 17.8°C, while salinity varied between 12.5 and 18.7 PSU; values of dissolved oxygen and pH ranged from 7.2 to 11.4 mg l-1 and 7.2 to 8.5 respectively at the coastal sites where hard bottom sampling was conducted. However, with regard to other sites where soft bottom sampling was carried out, the temperature varied between 8.0 and 18.0°C, salinity between 17.7 and 29.2 PSU, while values for dissolved oxygen and pH ranged from 5.1 to 11.4 mg l-1 and 7.8 to 8.7, respectively. In addition, the study of the amphipod species distribution revealed that the number of species was higher in spring compared to autumn while the number of individuals was higher in autumn compared to spring.

Environmental factors affecting reproducibility of bioremediation field assays in Antarctica

2020 ◽  
Vol 169 ◽  
pp. 102915 ◽  
Author(s):  
L.M. Martínez Álvarez ◽  
L.A.M. Ruberto ◽  
J.M. Gurevich ◽  
W.P. Mac Cormack
Keyword(s):  
Environmental Factors ◽  
Factors Affecting
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