Diversity and abundance of terrestrial Gastropods on the slopes of Mount Arjuna-Welirang, East Java, Indonesia

Abstract. Nurhayati PA, Affandi M, Nurinsiyah AS. 2021. Diversity and abundance of terrestrial Gastropods on the slopes of Mount Arjuna-Welirang, East Java, Indonesia. Biodiversitas 22: 4193-4202. Before this study, the latest list of land snail species from Mt. Arjuna-Welirang was published in 1952. The current study aims to update the list of terrestrial Gastropods in the area, focusing on Sumber Brantas Arboretum and Raden Soerjo Forest Park Conservation Area (Tahura), East Java, Indonesia. Live snails and dead shells were collected from 24 10 × 10 m2 sampling plots to determine species richness, composition, and abundance. Sampling was carried out by combining visual observation (direct collection) and sorting-sieving soil-leaf litter samples. Total 646 specimens belonging to eight families and 13 species were collected, all new records to the area. Thus, the number of species known from Mt. Arjuna-Welirang was increased to 16 species from nine families. The diversity index of the Mt. Arjuna-Welirang slope was 1.1, and the dominance index was 0.54. The Tahura had a higher diversity index than the Arboretum, at 2.0 and 0.38, respectively, but the dominance index for Tahura was lower (0.18 and 0.85, respectively). This was due to the dominance of Bradybaena similaris, an invasive species in the latter area. Less canopy cover and more human activity in the Arboretum are factors that might cause this discrepancy. Many land snail species are sensitive to desiccation and habitat disturbance. Therefore, minimizing habitat changes and human activities is necessary to maintain or increase native land snail species diversity.

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The land snail fauna of a South American rainforest biodiversity hotspot: the Panguana conservation area in the Peruvian Amazon

Journal of Molluscan Studies ◽

10.1093/mollus/eyz014 ◽

2019 ◽

Vol 85 (3) ◽

pp. 311-318

Author(s):

Birte Wendebourg ◽

Bernhard Hausdorf

Keyword(s):

Distinct Group ◽

Land Snail ◽

Global Scale ◽

Land Snails ◽

Snail Species ◽

South American ◽

Conservation Area ◽

Additional Species ◽

Synanthropic Species ◽

Very High

Abstract We investigated the land snail fauna of the Panguana conservation area on the western rim of the Amazonas basin in Peru. A total of 2,322 individuals assigned to 65 land snail species were collected in 32 plots. Ten additional species were found in collections made on previous expeditions to Panguana. On the basis of available data, Panguana is the most species rich locality for land snails in South America. The species density of 75 land snail species in c. 2 km2 of rather homogeneous rainforest is also high on a global scale. The land snail fauna of Panguana is characterized by a very high proportion of species belonging to the carnivorous family Scolodontidae, many of which are likely to be new to science. The fauna includes seven species that are new records for Peru, and the species Hirtudiscus sp., Xenodiscula venezuelensis, Geostilbia aperta, Guppya gundlachii and Thysanophora plagioptycha represent genera not previously recorded from the country. The synanthropic species Allopeas gracile, Opeas hannense, Subulina octona, Geostilbia aperta and Gastrocopta servilis form an ecologically distinct group that occurs mainly in sites strongly modified by humans. The presence of these species on the margin of the Amazon rainforest is evidence of the ongoing homogenization of the global fauna.

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New records of Orthalicoidea land snail species for the state of Minas Gerais, southeastern Brazil (Gastropoda, Stylommatophora)

Check List ◽

10.15560/17.2.395 ◽

2021 ◽

Vol 17 (2) ◽

pp. 395-399

Author(s):

Rodrigo Brincalepe Salvador ◽

Luiz Ricardo L. Simone

Keyword(s):

New Records ◽

Land Snail ◽

Minas Gerais ◽

The State ◽

Type Locality ◽

Southeastern Brazil ◽

Snail Species ◽

Minas Gerais State

New collection efforts in the limestone caves of Parque Nacional Cavernas do Peruaçu, Minas Gerais state, Brazil, has brought to light specimens belonging to three orthalicoid land snail species previously unrecorded from that state: Kora nigra Simone, 2015 and Kora rupestris Salvador & Simone, 2016 (Bulimulidae), and Leiostracus subtuszonatus (Pilsbry, 1899) (Simpulopsidae). All the above species were previously known from very restricted areas or just from their type locality. A possible record of Streptartemon aff. cookeanus (F. Baker, 1914) (Streptaxidae) is also reported herein.

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DIVERSITY AND ECOLOGY OF LAND SNAILS IN GUNUNG HALIMUN SALAK NATIONAL PARK (GHSNP) IN JAVA, INDONESIA

Zoo Indonesia ◽

10.52508/zi.v28i1.3956 ◽

2020 ◽

Vol 28 (1) ◽

Author(s):

Ayu Savitri Nurinsiyah ◽

Ita Faizah ◽

Yogi Prasetio ◽

Tedi Setiadi ◽

Ristiyanti Marsetiowati Marwoto ◽

...

Keyword(s):

Species Richness ◽

Soil Ph ◽

National Park ◽

New Records ◽

Land Snail ◽

Montane Forest ◽

Land Snails ◽

Tropical Montane Forest ◽

Snail Species ◽

June July

The land snail fauna of the largest tropical montane forest in Java, the Gunung Halimun Salak National Park (GHSNP), was surveyed during the dry season (June-July) in 2015, concentrating on four park’s resorts, i.e. Cikaniki, Mt. Botol, Cisarua (Halimun area) and Cidahu (Salak area). In total, 399 specimens representing 43 species were collected. Prior to the surveys, 48 land snail species were known from the GHSNP. Fifteen new records for the GHSNP were discovered so 63 species are now known to inhabit the Park. This number represent 25% of the total land snail fauna of Java. 21 of the species found in GHSNP are endemic to Java. The species richness of the plots in GHSNP was correlated with soil pH and the composition of the land snail communities was correlated with elevation, annual mean temperature, and amount of deadwood.

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Diversity of Land and Freshwater Snail (Mollusca: Gastropoda) of Laiwangi Wanggameti National Park, Sumba Island, Indonesia

Jurnal Biodjati ◽

10.15575/biodjati.v6i2.13521 ◽

2021 ◽

Vol 6 (2) ◽

pp. 162-173

Author(s):

Nova Mujiono ◽

Nur Rohmatin Isnaningsih

Keyword(s):

Population Density ◽

Species Composition ◽

National Park ◽

Dominant Species ◽

New Records ◽

Land Snail ◽

Freshwater Snail ◽

The Other ◽

Snail Species ◽

Number Of Species

A study on the malacofauna of Laiwangi Wanggameti National Park (LWNP) in Sumba Island has been conducted. This study aims were to reveal the diversity of malacofauna in Sumba and compare it with those in the Lesser Sunda Islands. Observations were made on 20 stations using plots (10 x 10 m) in Wanggameti and Laiwangi. Specimens were collected for two hours in each plot. Twenty families and 44 species have been identified. The overall number of species from Sumba increased from 126 to 143 species. The LWNP represents 31% diversity of malacofauna in Sumba Island. Seventeen species are considered as new records for the island. Five endemic land snail species are still observed inside the park. The diversity and population density tend to be higher in Laiwangi area with lower altitudes than in Wanggameti area with higher altitudes. Two dominant species are Asperitas bimaensis cochlostyloides and Tarebia granifera. Species composition in Sumba is more similar to Bali compared with the other six neighboring islands.

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Diversity and Evenness of Medicinal Plants in Bantarbolang Nature Reserve Block 19-21, Pemalang, Central Java

BioEksakta : Jurnal Ilmiah Biologi Unsoed ◽

10.20884/1.bioe.2020.2.1.1752 ◽

2020 ◽

Vol 2 (1) ◽

pp. 34

Author(s):

Mufadila Day Muhyi ◽

Edy Yani ◽

Pudji Widodo

Keyword(s):

Medicinal Plants ◽

Medicinal Plant ◽

Nature Reserve ◽

Diversity Index ◽

Survey Methods ◽

Similarity Index ◽

Canopy Cover ◽

Forest Edge ◽

Conservation Area ◽

Central Java

This study was conducted in Bantarbolang Nature Reserve located in Kebon Gede village, Bantarbolang sub-district, Pemalang Regency. Bantarbolang is one of the nature reserves that have the structure and composition of complex vegetation so that there is a diversity of plants which can grow in a conservation area, such as medicinal plants diversity. The objectives of this study were to know the various species of medicinal plants in the Bantarbolang nature reserve block 19-21 and to know the evenness of medicinal plants in the Bantarbolang nature reserve block 19-21. This study was conducted with survey methods and sampling using a systematic square plot. The variables observed consists of dependent variables i.e. the species of medicinal plant and independent variables include environmental factors i.e. temperature, light intensity, humidity, canopy cover, and soil pH. The parameters observed are the number of species and individual number of medicinal plants. The data were analyzed using the Important Value Index (IVI), Diversity Index (H'), Evenness Index (e) and Similarity Index (IS). The plant samples were made into voucher herbarium and stored in PUNS for future references. The results of the study showed that the diversity of medicinal plants in the Bantarbolang Nature Reserve Block 19-21 was high (H’≥0) with 48 species from the 33 families of medicinal plants. Evenness of medicinal plants in Bantarbolang nature reserve block 19-21 is low (e closer to 0). Alocasia cucullata is a dominant species of medicinal plant of a distance of 0-200 meters from the forest edge. Keywords: Bantarbolang nature reserve, diversity, medicinal plant

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KEANEKARAGAMAN JENIS BURUNG DI TAMAN HUTAN RAYA SULTAN SYARIF HASYIM PROVINSI RIAU

Wahana Forestra Jurnal Kehutanan ◽

10.31849/forestra.v14i1.2511 ◽

2019 ◽

Vol 14 (1) ◽

pp. 22-30

Author(s):

Rohmad Badriansyah ◽

Hadinoto Hadinoto ◽

Muhammad Ikhwan

Keyword(s):

Forest Cover ◽

Forest Succession ◽

Diversity Index ◽

Habitat Destruction ◽

High Rate ◽

Bird Diversity ◽

Conservation Area ◽

Forest Park ◽

High Level ◽

Richness Index

Birds are an animal that has an important role in the process of forest succession, plays a role in spreading seeds, helping pollination, and balancing ecosystems. Deforestation of forest areas in Riau has a high rate, this can be seen from the change in the function of forests into agricultural and plantation land. The Sultan Syarif Hasyim Forest Park (TAHURA) is a conservation area that has quite alarming conditions, of the forest area of 6,172 hectares, there are only 2,000 hectares left forested, while the rest have acacia forest cover, shrubs, oil palm plantations, rubber plantations . The assessment of bird diversity needs to be carried out in the Sultan Syarif Hasyim Tahura given the high level of habitat destruction. Birds in TAHURA Sultan Syarif Hasyim have 71 species of birds from 34 families and 13 orders, there are 5 nocturnal birds. The diversity index (H) ranges from 3.19 - 3.92, the evenness index type (E) ranges from 0.88 - 0.92 and the species richness index (R) ranges from 2.14 - 4.28.

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Analisis Struktur dan Komposisi Vegetasi Tumbuhan Di Taman Hutan Raya Raden Soerjo Prigen Pasuruan

ULIN Jurnal Hutan Tropis ◽

10.32522/ujht.v5i2.5336 ◽

2021 ◽

Vol 5 (2) ◽

pp. 114

Author(s):

Nia Sylviana Sari ◽

Samsun Hadi ◽

Rr. Eko Susetyarini

Keyword(s):

Diversity Index ◽

Environmental Parameters ◽

Sampling Technique ◽

Wealth Index ◽

Tree Level ◽

Importance Value Index ◽

Importance Value ◽

Dominance Index ◽

Vegetation Diversity ◽

Forest Park

Long drought and uncontrolled human activities resulted in R. Soerjo Prigen Pasuruan Grand Forest Park experiencing fire. Adverse impacts on vegetation can result in vegetation death. Damage caused by fire to vegetation can lead to succession which can be seen from the composition and structure of forest vegetation. The purpose of this study was to determine the effect of environmental parameters, structure and composition of plant vegetation in Tahura R. Soerjo, which were used as a learning resource for biology. This study used a purposive sampling technique. The method used is a combination of paths and checkered lines. The data analysis technique used is the Importance Value Index (INP), the dominance index, the diversity index, the wealth index, and the evenness index. The results showed that the identification of plant vegetation diversity was found as many as 33 species from 17 families that came from 3 divisions. The highest INP was found at the seedling level. The value of the dominance index is less than 1. The results show that the value of the density index is low, because it has a value of <3.5. The evenness value is at a high value, except at the tree level.

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THE DIVERSITY AND DISTRIBUTION OF TWO FAMILIES OF SUMATRAN LAND SNAIL (GASTROPODA: CAMAENIDAE AND CYCLOPHORIDAE)

BERITA BIOLOGI ◽

10.14203/beritabiologi.v18i3.3746 ◽

2019 ◽

Vol 18 (3) ◽

Author(s):

Nova Mujiono ◽

Windra Priawandiputra ◽

Tri Atmowidi

Keyword(s):

Secondary Data ◽

Land Snail ◽

Primary Data ◽

Snail Species ◽

Museum Collections ◽

Species Occurrence ◽

Conservation Area ◽

New Information ◽

Distribution Ranges ◽

New Distribution

The diversity of land snail in Sumatra, Indonesia was firstly studied by Bock (1881), followed by some comprehensive studies by Degner (1928), Van Benthem Jutting (1959), and recently by Marwoto (2016). This research aimed to update the data on diversity and distribution of those two families, documenting new information on their distribution, make historical records of species occurrence, list species occurrence from inside and outside the conservation area. We collected primary data from 274 numbers of museum collections and secondary data from 29 literatures. In total, 58 species of Camaenidae and 66 species of Cyclophoridae were known from Sumatra. Fourteen land snail species, seven from family Camaenidae and seven from family Cyclophoridae, were added to the previous list of land snail species in Sumatra. There were 30 land snail species with new distribution ranges.

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Fluktuasi Fitoplankton pada Kawasan Konservasi Rajungan Perairan Betahwalang Demak

Jurnal Kelautan Tropis ◽

10.14710/jkt.v22i2.6296 ◽

2019 ◽

Vol 22 (2) ◽

pp. 191

Author(s):

Elsa Lusia Agus ◽

Rudhi Pribadi ◽

Subagiyo Subagiyo

Keyword(s):

Water Quality ◽

Species Diversity ◽

Diversity Index ◽

Phytoplankton Abundance ◽

Species Diversity Index ◽

Dominance Index ◽

Conservation Area ◽

Factors Affecting ◽

Protection Zone ◽

Water Conditions

Phytoplankton is an organism that had an effect on life waters and can be used as the parameters in monitoring water quality. Distribution of phytoplankton in the waters can be for biomonitoring which can be used to make protection zone. This study will examine the distribution and composition of phytoplankton in The crab conservation area in Betahwalang Waters, Demak. This research divided into three stations in estuaries and the sea s. Each sampling was done once a month. Samples were taken using a plankton net. The results found three classes of phytoplankton, namely Bacillariophyceae class, Cyanophyceae class and Dinophyceae class. The number of genera found in the river area (37 genera), at the estuary station as much (38 genera) and the sea station as much (31 genera). Fluctuation in phytoplankton abundance at each station is quite varied. The abundance of phytoplankton in January was 1.030.400 cells/L, in February it was 936.800 cells/L, and in March it was 643.600 cells/L. The highest abundance occurs in the estuary area, then the river and the lowest in the sea. The value of species diversity index (H ') is in the range of 2.57-3.03. Uniformity index values range from 0.86 to 0.94. The dominance index from 0.06 to 0.14. Factors affecting the abundance and dominance of phytoplankton are water conditions and the rainy season. Fitoplankton merupakan organisme yang mempunyai pengaruh besar terhadap kehidupan di suatu perairan baik langsung maupun tidak langsung dan dijadikan sebagai salah satu parameter dalam pemantauan kualitas perairan.Fitoplankton di perairan dapat dijadikan suatu ukuran bahwa Kawasan tersebut dapat dijadikan sebagai zona perlindungan biota.Penelitian ini mengkaji fluktuasi fitolankton pada Kawasan konservasi rajungan di Perairan Betahwalang, Demak. Penelitian ini dilakukan pada 3 stasiun yang terletak disungai, muara sungai, dan laut. Pengambilan sampel dilakukan setiap bulan selama tiga bulan menggunakan planktonnet. Hasil penelitian ditemukan 3 kelas yaitu kelas Bacillariophyceae, Cyanophyceae dan Dinophyceae.Jumlah genus yang ditemukan pada area sungai, muara sungai dan laut berturut-turut 37 genus, 38 genus dan 31 genus. Fluktuasi kelimpahan fitoplankton di setiap stasiun cukup bervariasi.Kelimpahan fitoplankton pada bulan Januari sebesar 1.030.400 sel/L, pada bulan Februari sebesar 936.800 sel/L, dan pada bulan Maret sebesar 643.600 sel/L. Kelimpahan tertinggi terjadi pada daerah muara, kemudian sungai dan terendah di laut. Sedangkan nilai indeks keanekaragaman jenis (H’) berada pada kisaran 2,57-3,03. Nilai indeks keseragaman berkisar 0,86-0,94. Sedangkan indeks dominasi berkisar 0,06-0,14. Faktor yang mempengaruhi kelimpahan dan dominasi fitoplankton adalah kondisi perairan dan musim hujan.

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Preliminary re-survey of the land snail fauna of Rotuma: conservation and biosecurity implications.

Pacific Conservation Biology ◽

10.1071/pc140094 ◽

2014 ◽

Vol 20 (1) ◽

pp. 94 ◽

Cited By ~ 3

Author(s):

Gilianne Brodie ◽

Gary M Barker ◽

Froseann Stevens ◽

Monifa Fiu

Keyword(s):

Native Species ◽

New Records ◽

Conservation Status ◽

Land Snail ◽

Land Snails ◽

Snail Species ◽

Native Land ◽

Fiji Island ◽

Coastal Cliffs ◽

Native Invasive

In May 2012 Rotuma Island, the main island of the remote Rotuma Group (Fiji), was surveyed to document the composition of the non-native land snail fauna and to investigate if populations of previously recorded native land snail species persist. From sampling at nine locations, twenty-one land snail species from eleven gastropod families were found. Of these, eight species are non-native and two of these Parmarion martensi Simroth, 1893 and Quantula striata (Gray, 1834) (Ariophantidae) are new records for the Rotuma Group. Ten of the 13 species of native land snails found — including the endemic partulid Partula leefi E. A. Smith, 1897 and the rhytidid Delos gardineri (E. A. Smith, 1897) — were detected only as empty shells. The native Ouagapia perryi (E. A. Smith, 1897) and the endemic Succinea rotumana E. A. Smith, 1897 and Sinployea rotumana (E. A. Smith, 1897) remain undetected on Rotuma Island since their first collection in 1897. The non-native, invasive predatory flatworm, Platydemus manokwari, was also found and represents a major threat to the island’s land snail fauna. This non-native species appears to be absent in many other parts of the Fiji Island archipelago and thus a re-evaluation of existing quarantine measures is required to address its potential spread to non-invaded areas. Comparisons with earlier surveys indicate a shift in the structure of the Rotuman land snail fauna over a 115-year period, with declining native components and increasing prevalence of non-native species. Further sampling, focusing on residual native habitat in less accessible areas such as coastal cliffs and offshore islets, is urgently needed to establish the conservation status of Rotuman native land snails and determine the threat posed by both, non-native snails and P. manokwari.

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