scholarly journals SPECIES COMPOSITION AND HABITAT OF BUTTERFLY IN MUA XUAN AGRICULTURAL CENTER, HAU GIANG PROVINCE

2019 ◽  
Vol 1 (25) ◽  
pp. 60-67
Author(s):  
Dan Hoang Truong ◽  
Lien Thi Bich Tran ◽  
Tho Truong Bui
Keyword(s):  
Species Composition ◽  
Butterfly Species ◽  
Frequency Of Occurrence

The survey was carried out in Mua Xuan agricultural center, Hau Giang province from 9/2014 to 12/2014. The study recorded 41 butterfly species, which belong to 32 genera of 05 families. Nymphalidae was the most dominant family, followed by Pieridae, Hesperiidae and Lycaenidae whereas Papilionidae had the lowest frequency of occurrence. The findings also indicated that Melaleuca forest and roadside sight were two diverse habitats where the butterfly species were found most.

scholarly journals The habitat preferences of fishes from the Limpopo river system, Transvaal and Mocambique

Koedoe ◽  
1973 ◽  
Vol 16 (1) ◽  
Author(s):  
I.G. Gaigher
Keyword(s):  
Species Composition ◽  
Habitat Preferences ◽  
River System ◽  
Frequency Of Occurrence ◽  
Check List

The species composition of fishes in the Limpopo River system is described. The frequency of occurrence for eachhabitat type is expressed as a percentage of the habitats sampled. A check list of species is presented and the species can be grouped into five habitat preferences.

scholarly journals ФІТОПАРАЗИТИЧНІ НЕМАТОДИ ПРИРОДНИХ ЕКОСИСТЕМ ЛІВОБЕРЕЖНОГО ПОЛІССЯ (У МЕЖАХ ЧЕРНІГІВСЬКОЇ ОБЛАСТІ)

2020 ◽  
Vol 79 (1-2) ◽  
pp. 42-47
Author(s):  
V. L. Shevchenko ◽  
T. M. Zhylina
Keyword(s):  
Species Composition ◽  
Left Bank ◽  
Frequency Of Occurrence ◽  
Soil Nematodes ◽  
Natural Ecosystems ◽  
Dominant Group ◽  
Nature Park ◽  
Nematode Abundance ◽  
Longidorus Elongatus ◽  
Eleven Species

The species composition, frequency of occurrence, and the abundance of phytohelminths in communities of soil nematodes in natural ecosystems of the Left-Bank Polissia (Chernihiv region) were studied. Samples were collected throughout 2011-2016 in forest and meadow ecosystems on the territory of Chernihivskyi, Horodnianskyi, Kozeletskyi, Koropskyi, Menskyi, Ripkynskyi, Sosnytskyi, Semenivskyi, Shchorskyi and Novhorod-Siverskyi districts. Nematodes were extracted by a modified Baermann’s method from the 20-g sample. The exposition time was 48 h. Extracted nematodes were fixed in the triethanolamine–formalin (TAF, 2 % triethanolamine, 7 % formaldehyde solution, 91% water), and mounted on the temporary hydroglyceric slides. Nematode abundance was expressed as specimens per 100 g of dry soil. Seventeen species from three orders, ten families and fifteen genera were found. Eleven species (64.7 % of the species composition) belonged to the order of Tylenchida, four (23.5 %) – Triplonchida, two (11.8 %) – Dorylaimida. Eleven species (Gracilacus audriellus, Paratylenchus nanus, Tylenchorhynchus dubius, Helicotylenchus dihystera, Macroposthonia annulata, Diphtherophora communis, Trichodorus primitivus, Paratrichodorus teres, Paratrichodorus pachydermus, Longidorus elongatus, Xiphinema index) are ectoparasites, three species (Ditylenchus dipsaci, Pratylenchus pratensis, Hirschmaniella gracilis) – endoparasites, and three species (Hemicycliophora sp., Heterodera sp. 1, Heterodera sp. 2) – semiendoparasites. Phytohelminths in communities of soil nematodes in forest ecosystems ranged from 9.4 to 26.3 %. But in meadow ecosystems of the Mezin National Nature Park it was a dominant group (proportion in the community 47%). The most frequent species were G. audriellus, H. dihystera and T. dubius which occurred in 33.3 %, 33.3 % and 28.3 % of samples respectively. P. nanus, D. dipsaci, P. pratensis та D. communis – had frequency of occurrence 15 – 20%. Ten species of phytohelminths were found in 1–4 ecosystems (1.7–6.7%). G. audriellus and H. dihystera were abundant (124 and 56 specimens per 100 g of soil respectively).

scholarly journals KOMUNITAS MAKRO ALGA DI PERAIRAN PANTAI ERI TELUK AMBON

2019 ◽  
Vol 15 (1) ◽  
pp. 40-45
Author(s):  
Frijona F Lokollo
Keyword(s):  
Community Structure ◽  
Species Composition ◽  
Relative Frequency ◽  
Occurrence Frequency ◽  
Frequency Of Occurrence ◽  
Gracilaria Salicornia ◽  
Turbinaria Ornata ◽  
Belt Transect ◽  
Macro Algae

This research was conducted in Eri Beach, Ambon Bay on November 2016 to study community structure which consist of species composition, density and occurrence frequency of macro algae.  Sample of macro algae was collected by using belt transect method.  The results showed that there were 11 species of macro algae in the area which were belonged to 11 genera, 9 families, 8 orders, 3 classes and 3 divisions. Those species were Halimeda opuntia and Caulerpa serrulata (Chlorophyta), Padina minor and Turbinaria ornata (Phaeophya), Amphiroa rigida, Galaxaura rugosa, Ceratodictyon spongiosum, Gracilaria Salicornia, Laurencia papillosa, Acanthophora muscoides and Halymenia durvillaei (Rhodophyta). The highest density was represented by Amphiroa rigida (2.02 ind/m2) while the highest relative frequency of occurrence belonged to Padina minor (27%). Keywords : Community, macro algae, density, Eri, Ambon Bay   ABSTRAK Penelitian ini bertujuan untuk mengetahui struktur komunitas makro alga meliputi komposisi jenis, frekuensi kehadiran serta kepadatan di Pantai Eri. Penelitian dilakukan pada bulan November 2016. Stasiun pengamatan makro alga yaitu di perairan pantai Eri. Metode sampling menggunakan Belt Transect. Hasil penelitian ditemukan 11 spesies, 11 genus, 9 famili, 8 ordo, 3 kelas dan 3 devisi. Chlorophyta terdiri dari Halimeda opuntia dan Caulerpa serrulata. Phaeophya terdiri dari Padina minor dan Turbinaria ornata. Rhodophyta terdiri dari Amphiroa rigida, Galaxaura rugosa, Ceratodictyon spongiosum, Gracilaria Salicornia, Laurencia papillosa, Acanthophora muscoides dan Halymenia durvillaei. Kepadatan jenis tertinggi spesies A. rigida (2.02 ind/m2) dan frekuensi kehadiran relatif tertinggi spesies Padina minor (27%).

scholarly journals Entomofauna of winter wheat in the Right-bank Forest-Steppe of Ukraine

2020 ◽  
Vol 107 (3) ◽  
pp. 96-104
Author(s):  
V. Medvid ◽  
Keyword(s):  
Species Composition ◽  
Winter Wheat ◽  
Sitobion Avenae ◽  
Forest Steppe ◽  
Frequency Of Occurrence ◽  
Eurygaster Integriceps ◽  
The Right ◽  
Occurrence Of Species

Entomofauna of winter wheat in the Right-bank Forest-Steppe of Ukraine The entomofauna of winter wheat in the Right-Bank Forest-Steppe of Ukraine during the spring-summer vegetation of 2017–2019, which consisted of 46 species from 8 orders of insects, was studied. 32 species from 17 families were identified among the phytophages winter wheat. The greatest diversity of the Coleoptera was shown. The species composition of the entomocomplex of each year is analyzed, the frequency of occurrence of species is determined. It was found that during three years of research in the agrocenosis of wheat most often there were only three species: Haplothrips tritici Kurd., Sitobion avenae F. and Eurygaster integriceps Put. Keywords: entomofauna, species composition, winter wheat, phytophages, entomophages.

scholarly journals Měkkýší fauna rybníka Strašík u Libouně (střední Čechy, okres Benešov) a poznámky k fauně rybníků na Podblanicku [The Molluscan Fauna of Strašík Pond by Libouň Village (Central Bohemia, Benešov District) and Several Notes to Malacofauna of Ponds in Podblanicko Region]

2003 ◽  
Vol 2 ◽  
pp. 19-26
Author(s):  
Vladimír Vrabec
Keyword(s):  
Czech Republic ◽  
Species Composition ◽  
Lymnaea Stagnalis ◽  
Point Of View ◽  
Quantitative Composition ◽  
Frequency Of Occurrence ◽  
Bithynia Tentaculata ◽  
Radix Peregra ◽  
Molluscan Fauna ◽  
Basic Characteristics

In the pond Strašík by Libouň (Czech Republic, WGS 84: 49°37'50"N, 14°49'30"E) 14 species of water molluscs were documented by the research executed on 8 June 2001: Radix peregra, Lymnaea stagnalis, Anisus vortex, Bathyomphalus contortus, Gyraulus albus, Gyraulus crista, Hippeutis complanatus, Musculium lacustre, Pisidium casertanum, Pisidium milium, Pisidium nitidum, Pisidium obtusale, Pisidium personatum, Pisidium subtruncatum. The basic characteristics of the community were determined: quantitative composition and dominance. The index of the concentrated dominance modified according to Simpson (c = 0,33) was counted and compared with available data. The pond fauna was compared to the fauna of other examined ponds in Podblanicko. The total of 12 ponds were examined in this region or its closest surroundings so far and 21 species of water molluscs were found in them. The pond Strašík, analysed in this study, is richest in species variety, as it has 14 species, the least occupied are the ponds Splav by Bystřice (2 species) and the first pond above the pond Utopenec by Vlašim (3 species). In the case of these ponds the result is probably due to the fact that they are relatively little known. The species Anisus vortex, Lymnaea stagnalis and Gyraulus albus have the highest frequency of occurrence in the ponds examined so far in Podblanicko, the least frequent are the species Bithynia tentaculata, Acroloxus lacustris and Pisidium personatum. The similarity of the species composition of the ponds fauna was evaluated according to the Jaccard’s index. The pond most similar to the Strašík pond analyzed in this study is from the point of view of the species presence the pond Utopenec on the stream Orlina (8 and 12), which is situated nearby.

scholarly journals Desmids (Zygnematophyceae) from the littoral zone of an urban artificial lake: taxonomic aspects and geographical distribution

2018 ◽  
Vol 30 (0) ◽  
Author(s):  
Camila Akemy Nabeshima Aquino ◽  
Gabriela Medeiros ◽  
Jascieli Carla Bortolini ◽  
Cinthia Coutinho Rosa Favaretto ◽  
Douglas Ticiani ◽  
...  
Keyword(s):  
Species Composition ◽  
Geographical Distribution ◽  
Littoral Zone ◽  
New Records ◽  
Frequency Of Occurrence ◽  
Morphometric Characteristics ◽  
Ecological Studies ◽  
Artificial Lake ◽  
Qualitative Nature ◽  
Municipal Lake

Abstract Aim: The aim of this study was to assess the taxonomic aspects and geographical distribution of the periphytic desmids from two different substrates in the littoral zone of an urban artificial lake. Methods Samples of epiphytic and epilithic desmids were collected by grass and rock scraping, respectively, in two stations in the Cascavel municipal lake, Paraná, during April 2015, and March 2016 and 2017. In the laboratory, the taxa obtained from the samples were photographed and their morphometric characteristics recorded. The species composition of the desmid was characterized, and the frequency of occurrence as well as the geographic distribution of each taxon in the Paraná State were recorded. Results We identified 35 taxa, distributed in 10 genera. The most representative were Closterium Nitzsch ex Ralfs and Cosmarium Corda ex Ralfs. A high occurrence of sporadic taxa (60%) was observed and among the recorded taxa, the most frequent were Cosmarium pseudoconnatum Nordstedt var. pseudoconnatum and Desmidium grevillei (Kützing ex Ralfs) De Bary. Nine taxa were exclusive to the epilithic substrate and only Netrium digitus (Ralfs) Itzigsohn & Rothe var. digitus was exclusive to the epiphytic substrate, while the remaining 25 taxa occurred in both substrates. Seven taxa are new records for the Paraná State. Conclusion Although our results are of qualitative nature, they provide baseline data on the biogeographic distribution of taxa, which are crucial for future taxonomic and ecological studies that might contribute to the preservation of the biodiversity.

Checklist of conspicuous reef fishes of the Bahía de los Ángeles region, Baja California Norte, Mexico, with comments on abundance and ecological biogeography

Zootaxa ◽  
2011 ◽  
Vol 2922 (1) ◽  
Author(s):  
ISMAEL MASCAREÑAS-OSORIO ◽  
BRAD ERISMAN ◽  
JERRY MOXLEY ◽  
EDUARDO BALART ◽  
OCTAVIO ABURTO-OROPEZA
Keyword(s):  
Los Angeles ◽  
Species Composition ◽  
Relative Abundance ◽  
Gulf Of California ◽  
Baja California ◽  
Reef Fishes ◽  
Eastern Pacific ◽  
Frequency Of Occurrence ◽  
Tropical Eastern Pacific ◽  
Geographic Distributions

A first checklist of conspicuous reef fishes observed at 15 sites in the vicinity of Bahía de los Ángeles from 2008 to 2010 is presented. A total of 70 species representing 31 families were observed. Species composition was similar to well studied regions in the southern Gulf of California, in that most species had distributions that span the Tropical Eastern Pacific but species endemic to Mexico or the Gulf of California ranked highest in relative abundance, frequency of occurrence, and mean density. Several species with temperate geographic distributions were more abundant and frequent than on reefs in the southern Gulf. Large-bodied, predatory species such as sharks and the Gulf Grouper, Mycteroperca jordani, were rare or absent.

Frugivorous butterflies in Venezuelan forest fragments: abundance, diversity and the effects of isolation

1999 ◽  
Vol 15 (6) ◽  
pp. 703-722 ◽  
Author(s):  
Ghazala Shahabuddin ◽  
John W. Terborgh
Keyword(s):  
Species Diversity ◽  
Habitat Fragmentation ◽  
Species Composition ◽  
Dry Season ◽  
Butterfly Species ◽  
Forest Fragments ◽  
Interspecific Differences ◽  
Species Responses ◽  
Source Populations ◽  
Abundance And Diversity

Frugivorous butterflies were studied in a set of forested islands (0.1 to 1.15 ha) in a reservoir in eastern Venezuela to investigate the effects of fragmentation and the resulting isolation on their abundance, diversity and species composition. While some islands showed reduced abundance and species diversity in comparison to unfragmented (or control) sites, others did not. Isolation status affected both butterfly abundance and diversity. Islands located close to their colonizing sources (0.1–1 km) tended to support similar densities of butterflies but lower numbers of species in comparison to control sites. Far fragments (1–3 km from their colonizing sources) tended to harbour lower butterfly densities in comparison to control sites but undiminished numbers of species. Species composition varied significantly between control sites and islands and amongst control sites, near islands and far islands. Interspecific differences were observed in species' responses to fragmentation. Charaxines, medium-sized satyrines, morphines and brassolines may be vulnerable to extinction after habitat fragmentation while small-sized satyrines may be relatively resistant. Observations during the dry season indicate that butterfly species may exist as mainland-island metapopulations in Lago Guri, in which small habitat fragments require recolonization every year from source populations in large islands and mainland habitat.

Species Composition and Status of Butterflies in the Sunny and Shady Habitats of Cadaclan, San Fernando, La Union Botanical Garden of North Luzon, Philippines

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
ALMA E. NACUA ◽  
ALMA B. MOHAGAN ◽  
GRECEBIO JONATHAN D. ALEJANDRO
Keyword(s):  
Species Composition ◽  
Sampling Period ◽  
Botanical Garden ◽  
Butterfly Species ◽  
National Assessment ◽  
Standard Collection ◽  
San Fernando ◽  
Collection Practices ◽  
Rare Endemic ◽  
Species Being

A sampling of butterfly species composition and status is carried out in the sunny and shaded habitats of Cadaclan, San Fernando, La Union Botanical Gardens (LUBG) utilizing transection and standard collection practices. This study is the first comprehensive account of butterflies in the area.    Times for the collection were from 09:00 to 15:00 hours from 2012-2014 and yielded a total of 104 species during the sampling period.  Data on the species composition revealed six families out of 104 species under 66 genera and a new distribution record and several respective ecological preferences.  Percentage distribution by family indicate the following: Papilionidae, 24 (22.85%), Pieridae, 47 (47.70%), Nymphalidae, one (0.95%), Hesperiidae, 15 (14.29%), Riodinidae one (0.95%) and Lycaenidae, 16 (15.24%). Local status reveals 80 common, 23 very common, and one rare species. The National Assessment indicates 65 (62.5%) common, 2 (1.92%) rare, 1 (0.95) very rare, 12 (11.59 %) common endemic, 4 (3:85%) very rare endemic, 1 (0.95%) Luzon endemic, and 1 (0.95%) no experience and 1 (0.95%) new record Jamides cyta koenigswateri with only known distribution in Mindoro. Similarity of species composition showed Si=71% which suggests two separate and diverse habitat types. Additionally, variables such as temperature, vegetation types and elevation affect species composition and abundance. It is to be noted that collection times do not allow for crepuscular species and as such will skew the data but not significantly due to few species being categorized under this heading. Keywords - Butterfly, species composition, transect walk sampling, opportunistic sampling, Luzon, Philippines

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