scholarly journals Diversity and abundance of termites along altitudinal gradient and slopes in Mount Slamet, Central Java, Indonesia

2018 ◽  
Vol 19 (5) ◽  
pp. 1649-1658 ◽  
Author(s):  
HERY RATIKNYO ◽  
INTAN AHMAD ◽  
BAMBANG HERU BUDIYANTO

Pratiknyo H, Ahmad I, Bambang Heru Budianto BH. 2018. Diversity and abundance of termites along altitudinal gradient andslopes in Mount Slamet, Central Java, Indonesia. Biodiversitas 19: 1649-1658. A study on diversity and abundance of termites along analtitudinal gradient and the different slope was done in plantation forest of Mount Slamet. This research aimed to define the speciescomposition along the altitudinal gradient and slope and to define the environmental factors affecting it. The sampling of termites wascarried out following standardized belt transects (100 m x 2 m) laid vertically on the altitude of 700 up to 1300 m asl on four slopes.Each 100 m length of the belt transects was divided into 20 sections (5 m x 2 m), and termites were taken in each section from the trees,branches, barks and the ground. Data of termites composition were analyzed for diversity index (Shanon-Wiener, H') and dominationindex (Simson, D); the correlation among environmental factors with the family were analyzed by multivariate correlation, and then aCanonical Correspondence Analysis (CCA) was used to define the most associated environmental factor to the diversity and abundanceof termites. A total of 7349 individuals belonging to 11 species in nine genera, five subfamilies, and two families were recorded. Fourwood feeder species were Schedorinotermes javanicus, Macrotermes gilvus, Odontotermes javanicus and Microtermes insperatus, whilehumus feeder was Capritermes samarangi, Procapritermes stiger, Nasutitermes matangensis, N. matangensiformis, Bulbitermes spp.,and the soil feeders were PeriCapritermes javanicus and P. dolichocephalus. Based on the Shanon-Wiener index, the Western Slopewas the highest in diversity with five main environmental factors (altitudes, maximal rainfall, N content, manure application and lightintensity) the most influencing while the CCA ordination showed that the canopy closure and light intensity were the most associatedfactor to the diversity and abundance of termites. In conclusion, the slopes

2011 ◽  
Vol 63 (2) ◽  
pp. 469-476 ◽  
Author(s):  
Qiao-Ming Zhang ◽  
De-Xiang Wang ◽  
Anton Fischer

The field approach underlying a vegetation study influences the results of biodiversity assessments. In our paper we compared two main field survey approaches for forest vegetation recording, the Chinese and the European (?phytosociological?) one, for their differences and efficiency when applied to the plant communities of temperate forests. The Chinese approach uses a design with different plot sizes for recording the tree, shrub and herb layer species, respectively, while the European one uses the same plot size for recording all layers and species. The two approaches result in significant differences in species richness (Simpson?s diversity index and the Shannon-Wiener index), while there is no difference in the evenness index. The European approach has the ability to survey the number of different species more precisely than the Chinese one. For detecting the general patterns of diversity, however, the two approaches have the same ability, demonstrated here for the altitudinal gradient.


2020 ◽  
Vol 21 (4) ◽  
Author(s):  
Hery Pratiknyo ◽  
ENDANG ARIYANI SETYOWATI

Abstract. Pratiknyo H, Setyowati EA. 2020. Short Communication: The diversity of termites along the altitudinal gradient in a Karst Area of Southern Gombong, Central Java, Indonesia. Biodiversitas 21: 1730-1734. A karst area of Southern Gombong at altitudes of 0-500 m has a porous substrate whose soil content decreases as the altitude gets higher toward the top of the hill. This area is characterized by poor soil nutrient, but it has high CaCO3 and pH, which is not a favorable habitat for many species of termites which depend on soil substrate, as source of nutrient for community development, especially soil-feeding termites, as habitat for fungi as secondary daily diet, and as a stabilizer of the nest humidity. The aims of this research were to determine the diversity of termites along the altitudinal gradient in this karst area, and to determine the correlation between altitude and the termite diversity. The area was divided into 5 segments based on the altitudes, i.e., 0-100 m, 100-200 m, 200-300 m, 300-400 m, and 400-500 m. In each segment, a transect belt, 100 m long and 2 m wide, was made. Each transect was divided into 20 sections. Termites were sampled from living trees, branches, bark, litter and soil for 30 minutes per person in each section. The data were analyzed to determine the Shannon-Wienner diversity index (H¢), Shannon-Evenness index (E), and Simpson's Dominance index, and to find the correlation between the species diversity and altitude. The results showed that the termite diversity in the study site was low. Only four termite species were found with the indexes of diversity (H’), evenness (E), and dominance (D) of 1.01, 0.73 and 0.44 respectively. There was no linear correlation between termite diversity and altitude; the highest diversity was found in the middle altitudes, following the mid-domain effect model.


2019 ◽  
Vol 71 (1) ◽  
pp. 86-99
Author(s):  
Lamthai Asanok ◽  
Torlarp Kamyo ◽  
Dokrak Marod

Abstract This study investigated the environmental factors affecting functional traits, which have been shown to be important for species assembly in diverse forest stands on limestone hills in northern Thailand. We established 54 plots of 400 m2 in three forest sites (lower, middle, and upper) established along an altitudinal gradient on a limestone hill. The functional traits were assessed and then linked to environmental factors governing forest composition. Results indicated that elevation, rocky outcroppings, and sunlight were important factors affecting functional trait diversity at the study site. Areas with high values of these three factors exhibited increased community-level leaf size, specific leaf area, and leaf thickness, all of which are associated with light-demanding species. However, in areas with low values of these three factors, we observed increased community-level wood density and maximum plant height, which are characteristic of shade-tolerant species. Elevation also positively affected functional dispersion and functional richness values, indicating a wide functional trait space in higher elevation areas, but lower areas exhibited a narrower functional trait space. We suggest that combining a trait-based approach with environmental factors can reveal patterns of species composition in limestone forests.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Amzad Basha Kolar ◽  
Palanivel. S, ◽  
M. Sheik Noor Mohamed ◽  
S. Sheik Mohamed ◽  
M. Shareef Khan ◽  
...  

Biodiversity plays a significant role in maintaining the ecosystem for their sustainable utilization. A preliminary survey was conducted to document the diversity and economic importance of the angiosperms around the Medavakkam Lake, Chengalpattu district, Tamil Nadu. The study area act as a seed bank for native species and provide suitable conditions to endemic and certain endangered species. Diversity indices of the study area was found significant, in which the species abundance, richness and evenness were found. A total of 71 species belonging to 36 families of angiosperms were documented. Among which the Dicotyledons plants were 87.32% and monocotyledon plants were 12.67% of total flora reported. The study area was dominated by the family fabaceae (14.1%) with ten species. Habit wise classification of plants reveal that trees are predominant with 32%, followed by hers (25%), Shrubs (21%), Climbers (13%), undershrubs (6%) and grasses (3%). The Simpson Diversity Index, Shannon Wiener Index and evenness index of the study area is 0.777, 1.5634 and 0.8725 respectively. These plants was found with enormous benefits to the mankind such as medicinal, edible, timber, ornamental, oil and other sources. This investigation divulges that the Medavakkam Lake has substantial angiosperm diversity served as major source for native plants having greater economic importance.


DEPIK ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 9-21
Author(s):  
Ragil Nur Cahyono ◽  
Agung Budiharjo ◽  
Sugiyarto Sugiyarto

The objective of the present study was to determine the diversity fishes in Colo Dam  ecosystem and grouping its based on morphological characteristics. Sampling was conducted in September to October 2017 at Sukoharjo Colo Dam Central Java used the  purposive random sampling method. Identification of fish species based Kottelat (1993). The diversity of fish was calculated using Shannon Wiener's diversity index. The relationship between abiotic factors and the diversity of fish was analyzed by regression test. Grouped fish with the Ntsys cluster method (2.02i). The results showed that the diversity of Colo Dam fish at station III was higher (1.16) than at stations I, II, and IV (0.84, 0.82, and 1.15), the abiotic factors affecting the diversity of fish species, and fish species that have large morphological equations have a high coefficient of similarity value in dendogram analysis.Penelitian ini bertujuan untuk menganalisis keanekaragaman dan pengelompokan  ikan pada di Bendungan Colo. Pengambilan sampel dilakukan pada bulan September-Oktober 2017 di Bendungan Colo Sukoharjo menggunakan metode Purposive sampling. Identifikasi spesies ikan berdasarkan Kottelat (1993). Keanekaragaman ikan dihitung menggunakan indeks keragaman Shannon Wiener. Hubungan antar faktor abiotik dengan keanekaragaman ikan dianalisis dengan uji regresi. Pengelompokan ikan dengan metode cluster Ntsys (2.02i). Hasil penelitian menunjukkan bahwa keragaman ikan Bendungan Colo di stasiun III lebih tinggi (1,16) dari pada stasiun I, II, dan IV (0,84; 0,82; dan 1,15), faktor abiotik mempengaruhi keanekeragaman jenis ikan, dan jenis-jenis ikan yang memiliki persamaan morfologi yang besar memiliki nilai koefisien kemiripan yang tinggi dalam analisis dendogram.


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

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