Effect of habitat type on algal species diversity and distribution at high altitudes

2020 ◽  
Author(s):  
Nurhayat Dalkıran ◽  
Okan Külköylüoğlu ◽  
Şükran Dere ◽  
Didem Karacaoğlu ◽  
Enis Akay ◽  
...  
Keyword(s):  
Species Diversity ◽  
Algal Species ◽  
Habitat Type ◽  
High Altitudes

Avifaunal Diversity of Khata Corridor Forest

2009 ◽  
pp. 48-56 ◽  
Author(s):  
Umesh Kumar Chaudhari ◽  
Gandhiv Kafle ◽  
Hem Sagar Baral
Keyword(s):  
Species Diversity ◽  
Threatened Species ◽  
Mixed Forest ◽  
Habitat Type ◽  
Distribution Map ◽  
Species Discovery ◽  
Area Distribution ◽  
High Species Diversity ◽  
List Method ◽  
Index Of Diversity

The study was made to assess the species diversity of avians, habitat type, their presence/absence in the different habitats and to produce a distribution map of globally threatened species in Khata Corridor forest of Bardia district. Species discovery curve and richness curve was produced through McKinnon list method in which each list contains 15-species. Habitat type was distinguished by modified DAFOR scale. Riverine sissoo-khair forest, Moist-mixed forest, and Riverine grassland were found to be prominent habitat type in the intensive study area. Distribution map of threatened species was assembled through Arc View 3.2a. Shannon's Index of Diversity (H = 3.114) and species evenness (0.629) indicates the high species diversity of avians in Khata corridor forest. Further study is essential to incorporate remaining part of the forest and to survey winter birds. Key words: Avifauna, corridor, species diversity, habitatDOI: 10.3126/jowe.v2i1.1857 Journal of Wetlands Ecology, (2009) vol. 2, pp 48-56

Algal species diversity of arid region lakes in Kazakhstan and Israel

2009 ◽  
Vol 10 (1) ◽  
pp. 7-16 ◽  
Author(s):  
S. Barinova ◽  
T. Bragina ◽  
E. Nevo
Keyword(s):  
Species Diversity ◽  
Arid Region ◽  
Algal Species

The algal microflora of a string mire in relation to the chemical composition of water

1973 ◽  
Vol 51 (4) ◽  
pp. 743-749 ◽  
Author(s):  
T. Flensburg ◽  
J. H. Sparling
Keyword(s):  
Chemical Composition ◽  
Species Diversity ◽  
Water Flow ◽  
Algal Species ◽  
Chemical Composition Of Water ◽  
Bog Lakes ◽  
Flow Through

Twenty-one samples were examined for algal species diversity. Samples contained between one and 35 species with a mean of 10.6 species per sample. The greatest diversity of species occurred in samples collected from large flarks or bog lakes. Hummock communities, especially those with abundant Sphagnum rubellum contained fewest algae. All samples showed a predominance of Desmidiales.General ionic levels in the string mire were low; however, species of the genera Euastrum, Micrasterias, and Staurastrum occurred frequently in the sites richer in nutrients. More species were found in wetter than in drier sites.The presence of species characteristic of more base-rich conditions may be related to the rate of water flow through the mire.

Intertidal algal species diversity and the effect of pollution

1972 ◽  
Vol 23 (2) ◽  
pp. 73 ◽  
Author(s):  
MA Borowitzka
Keyword(s):  
Species Diversity ◽  
Species Composition ◽  
New South ◽  
New South Wales ◽  
Algal Species ◽  
Maximum Value ◽  
South Wales

The species diversity of the larger intertidal algae was determined at three sites along the coastline of Sydney, New South Wales. The changes in species diversity and species composition were correlated with height from mean of low water (MLW), distance from the edge of the rock platform at MLW, and distance from a sewer outfall (i.e. the degree of pollution). The total number of algal species was reduced in the vicinity of the outfall. This reduction was most evident in the Phaeophyceae and the Rhodophyceae. The maximum value of algal species diversity was also reduced at higher levels above MLW, away from the edge of the platform and near the outfalls.

Checklist of the marine flora of Nha Trang Bay (Vietnam, South China Sea) and decadal changes in the species diversity composition between 1953 and 2010

2015 ◽  
Vol 58 (5) ◽  
Author(s):  
Eduard A. Titlyanov ◽  
Tamara V. Titlyanova ◽  
Oksana S. Belous
Keyword(s):  
Species Diversity ◽  
Algal Species ◽  
Floristic Composition ◽  
Polluted Water ◽  
Number Of Species ◽  
Green Algal ◽  
Inorganic Substances ◽  
Nha Trang Bay ◽  
History Of ◽  
Green Algal Species

AbstractThe first complete checklist of the intertidal and subtidal marine algae (Rhodophyta, Chlorophyta and Ochrophyta) of Nha Trang Bay (Vietnam) is presented. A brief history of the species records in the bay between 1953 and 2010 is documented. A total of 481 macroalgal taxa and their forms have been found, including 275 red (57%), 121 green (25%) and 85 brown (18%) algal taxa. The data, analyzed in terms of time period, revealed shifts in the number of species in most of the taxonomic families. However, the most interesting differences between the time periods occurred in the overall algal species diversity and in the floristic ratios (red: brown: green algae). The collections sampled in 1953–1968 and those in 1982–1987 did not change significantly in either species diversity or floristic composition, but a comparison of the collections from 1953 to 1987 and from 2002 to 2010 revealed substantial differences. In 2002–2010, the absolute and relative numbers of green algal species increased while those of red and brown algal species decreased. Our background data indicate that this change is likely due to increasing seawater pollution caused by dissolved organic and inorganic substances. The increase in the number of green algal species is due primarily to the greater number of species in the Caulerpaceae, Ulvaceae and Cladophoraceae, all families that thrive in polluted water.

scholarly journals Impacts of Bush Encroachment on Wildlife Species Diversity, Composition, and Habitat Preference in Ol Pejeta Conservancy, Laikipia, Kenya

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Cyrus M. Kavwele ◽  
Johnstone K. Kimanzi ◽  
Mwangi J. Kinyanjui
Keyword(s):  
Species Diversity ◽  
Habitat Preference ◽  
Habitat Degradation ◽  
Habitat Type ◽  
Ground Surface ◽  
Infrared Camera ◽  
Woody Species ◽  
Hierarchical Cluster ◽  
Camera Traps ◽  
Wildlife Species

Savannah ecosystems are currently facing a biome shift that changes grasslands to woody dominated landscapes, attributable to habitat degradation. In Ol Pejeta Conservancy (OPC), Euclea divinorum, an unpalatable and invasive woody species, is expanding to former savannah ecosystems with potential effects on herbivores key resources, wildlife species diversity, composition, and habitat use. We investigated wildlife species diversity, composition, and habitat preference or avoidance by wildlife in the conservancy. Infrared camera traps were deployed at the centroids of 2 km by 2 km, 50 cm above ground surface for 14 days and nights with 9 camera traps in each habitat type. Shannon wiener index revealed that wildlife species diversity was highest in E. divinorum dominated habitats and lowest in open grassland. Hierarchical Cluster Analysis revealed level of similarity in wildlife species composition between E. divinorum and mixed bushland. Jacobs index revealed that E. divinorum and mixed bushland were avoided by all guilds; however E. divinorum was significantly avoided while A. drepanolobium and open grassland were both preferred by all guilds. However, A. drepanolobium dominated habitats were significantly preferred compared to open grasslands. The findings are useful in management of sustainable ecosystems.

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