scholarly journals Controlling invasive alien species Vachellia nilotica with triclopyr herbicide in Baluran National Park

2021 ◽  
Vol 914 (1) ◽  
pp. 012048
Author(s):  
R S B Irianto ◽  
R Garsetiasih ◽  
T Setyawati ◽  
N D Wahono ◽  
A Susilo ◽  
...  
Keyword(s):  
Alien Species ◽  
Active Ingredient ◽  
Rapid Growth ◽  
National Park ◽  
Invasive Alien Species ◽  
Control Method ◽  
Diesel Oil ◽  
Acacia Nilotica ◽  
Research Institutions ◽  
Efficient Control

Abstract Vachellia nilotica (Acacia nilotica), as an invasive alien species (IAS), was introduced to Baluran National Park from the Bogor Botanical Gardens in 1969. The purpose was for firebreak to prevent jumping fires from the savanna to the teak forests plantation. However, unexpectedly V. nilotica growth was uncontrollable and invaded the 6000 ha savanna. The rapid growth of this weed has killed the grass in the savanna leading to a decline in the Banteng population in Baluran National Park from 325 in 1998 to 22 in 2011. Since the 1980s, researche on V. nilotica control has been carried out by various universities and research institutions in Indonesia but has not yet obtained an effective and efficient control method. The study aimed to investigate the efficacy of herbicide with the active ingredient of triclopyr by stump brushing to control V. nilotica. Ten triclopyr herbicide concentrations with a solution of diesel and water were tested. The results showed that 1% triclopyr concentration in diesel oil could control 100% of V. nilotica weeds, while water solutions could only control 50% of V. nilotica weeds.

scholarly journals Status and impacts of invasive alien plant species in Parsa National Park, central Nepal

2020 ◽  
Vol 30 (1) ◽  
pp. 21-31 ◽  
Author(s):  
R. Chaudhary ◽  
B. B. Shrestha ◽  
H. Thapa ◽  
M. Siwakoti
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
National Parks ◽  
National Park ◽  
Invasive Alien Species ◽  
Plant Invasions ◽  
Tree Regeneration ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Invasive Alien Plant

Extent of plant invasions has been expected to be low in protected areas such as national parks due to low anthropogenic activities and high wilderness. However, recent researches across the world have revealed that plant invasions can be severe in the national parks with negative impacts on the protected species and ecosystems. Unfortunately, the status of plant invasions in the national parks of Nepal is mostly unknown. In this study, we sampled at seven locations inside the Parsa National Park (PNP) to document diversity and abundance of invasive alien plant species (IAPS) and their impacts on tree regeneration. Altogether, 130 quadrats of 10 m × 10 m were sampled. We recorded 14 IAPS in the PNP. Three of the IAPS (Chromolana odorata, Lantana camara and Mikania micrantha) were among the 100 of the world’s worst invasive alien species. C. odorata was found to be the most frequent IAPS with the highest cover. The frequency and cover of the IAPS were higher at the sites close to the settlements than at the sites away from the settlements. The species richness of the IAPS was also higher at the sites closer to the settlements than away. The sapling density of the tree species was found to have declined with the increasing cover of the IAPS suggesting that the IAPS had negatively affected tree regeneration. Our data revealed that the PNP has already witnessed massive plant invasions with widespread occurrence of three of the world’s worst invasive species. Therefore, it is high time to integrate management of invasive alien species in the management plan of the park.

scholarly journals Phytodiversity in Beeshazar Lake and Surrounding Landscape System

Our Nature ◽  
1970 ◽  
Vol 5 (1) ◽  
pp. 41-51 ◽  
Author(s):  
Sasinath Jha
Keyword(s):  
Alien Species ◽  
Vascular Plants ◽  
National Park ◽  
Invasive Alien Species ◽  
Buffer Zone ◽  
Threatened Plant Species ◽  
Landscape System ◽  
Chitwan National Park ◽  
Human Use ◽  
Surrounding Landscape

This paper deals in general with diversity of vascular plants, status of invasive alien species (IAS) and nationally threatened plant species, human use potentials of phytodiversity, and some phytodiversity-based measures to restore and improve the Ramsar characteristics of Beeshazar Lake and surrounding landscape system, which isa part of the Barandabhar forest corridor (BFC) - an extension of buffer zone of the Chitwan National Park, Nepal. Keywords: Phytodiversity, Beeshazar Lakedoi:10.3126/on.v5i1.797Our Nature (2007)5:41-51

scholarly journals Invasive Alien Species Plants in Sukaraja Atas Resort, Bukit Barisan Selatan National Park

2020 ◽  
Vol 8 (1) ◽  
pp. 109
Author(s):  
Agus Sayfulloh ◽  
Melya Riniarti ◽  
Trio Santoso
Keyword(s):  
Alien Species ◽  
Native Species ◽  
National Park ◽  
Invasive Alien Species ◽  
Imperata Cylindrica ◽  
Calliandra Calothyrsus ◽  
Importance Value Index ◽  
Importance Value ◽  
Open Land ◽  
Negative Impacts

One of the problems encountered by the Bukit Barisan Selatan National Park (TNBBS) is the presence of invasive alien species. Invasive alien species are plants that grow outside their natural distribution and have the ability to cover the area; hence it could suppress the growth of the other plants. The presence of invasive alien species in the national park has been widely reported to cause negative impacts on the ecosystem, local biodiversity, socio-economic, and human health in the vicinity. This study was carried out in the rehabilitation zone of the Sukaraja Atas Resort of TNBBS that had shifted into open land. This study aimed to determine the species and dominance of invasive alien species that exist. The sampling method was used by laying plots consisted of the combination of the line and multiple plot methods with a total plot of 25 plots. Data analysis was performed by selecting invasive alien species observed based related-literature, while the dominance of invasive alien species was calculated by the importance value index (IVI). The results identified 121 species, of which 29 species or 35% of them were classified as invasive alien, which originating from 19 families. Three invasive alien species become the most dominating, namely: Clidemia hirta with an IVI of 22.61, Imperata cylindrica with an IVI of 18.03, and Calliandra calothyrsus with an IVI 17.96. The environmental conditions and species characteristics supported the three invasive alien species domination; hence it inhibited the growth of native species. Keywords:  Bukit Barisan Selatan National Park, invasive alien species, rehabilitation zone

scholarly journals First confirmed breeding of an invasive alien species in the lagoon of Venice (Italy): the Sacred Ibis Threskiornis aethiopicus

2021 ◽  
Vol 91 (1) ◽  
pp. 51-54
Author(s):  
Francesco Scarton ◽  
Alvise Luchetta ◽  
Emiliano Molin ◽  
Alessandro Sartori ◽  
Roberto G. Valle
Keyword(s):  
Alien Species ◽  
Rapid Growth ◽  
Garbage Collection ◽  
Invasive Alien Species ◽  
Freshwater Wetlands ◽  
Lagoon Of Venice ◽  
Collection Site ◽  
Feeding Sites ◽  
Arable Fields ◽  
Sacred Ibis

After more than a decade of regular occurrence, the first confirmed breeding of the Sacred Ibis Threskiornis aethiopicus in the lagoon of Venice (Italy) was observed in 2020, in three sites. The ibises nested in colonies with of one or more species of Ardeidae and Phalacrocoracidae. The colonies were on islets < 2 ha in size, covered with thick vegetation. Nests were placed on the top of bushes or trees, at a height of 1.5-5 m. The colony sites seemed not occupied by adults until the end of February - half of March; laying took place from early May, with hatchings occurring from the end of that month until July. Overall, 22-24 pairs nested in 2020. Birds were observed feeding at saltmarshes, freshwater wetlands and arable fields; a public garbage collection site was also used regularly. Given the high number of suitable nesting and feeding sites, a rapid growth of the Sacred Ibis population is expected in the next years.

scholarly journals SPATIO-TEMPORAL MAPPING OF THE INVASIVE ALIEN SPECIES Pinus SP IN THE NORTHERN AREA OF THE LAGOA DO PEIXE NATIONAL PARK-RS

2019 ◽  
Vol 43 (1) ◽  
Author(s):  
Lisandro Marcio Signori ◽  
Jorge Ricardo Ducati
Keyword(s):  
Alien Species ◽  
National Park ◽  
Visual Analysis ◽  
Invasive Alien Species ◽  
Constant Growth Rate ◽  
Spectral Angle Mapper ◽  
Northern Area ◽  
Invasive Capacity ◽  
Spatio Temporal ◽  
Constant Growth

ABSTRACT A problem of global dimensions, the occupation of areas by invasive alien species is studied in this paper focusing on the increasing presence of Pinus sp in the Lagoa do Peixe National Park, at Rio Grande do Sul State, Brazil. From satellite imagery and the use of remote sensing and geoprocessing techniques, this paper presents a space-time mapping of the presence of this invasive alien species in the northern area of the Park, from 1985 to the 2017. Planted and disseminated areas of Pinus were mapped through visual analysis and pixel classification by the Spectral Angle Mapper (SAM) method, using images from the Landsat and Rapid Eye satellites. The results showed a constant growth rate in the areas of Pinus, with acceleration at the end of the analyzed period, confirming the invasive capacity of Pinus sp and the dispersion of their seeds by the wind. The excellent performance of the SAM algorithm in the identification of Pinus areas was demonstrated, as well as the importance of the use of satellite images in the analysis of the question.

scholarly journals Developing thresholds of potential concern for invasive alien species: Hypotheses and concepts

Koedoe ◽  
2009 ◽  
Vol 51 (1) ◽  
Author(s):  
Llewellyn C. Foxcroft
Keyword(s):  
Alien Species ◽  
Adaptive Management ◽  
Conceptual Understanding ◽  
National Park ◽  
Management Practices ◽  
Invasive Alien Species ◽  
Management Options ◽  
End Points ◽  
Management Interventions ◽  
Negative Impacts

The Kruger National Park (KNP) has developed and refined a system of management called ‘strategic adaptive management’ (SAM), which rests on the concept of ‘threshold of potential concern’ (TPC). TPCs represent end-points in a continuum of change. When thresholds are reached – at which point concerns of negative impacts on biodiversity are raised – management options are explicitly considered and implemented. This paper describes the TPCs developed for monitoring and managing invasive alien species (IAS). More importantly, however, it describes the conceptual understanding, principles and hypotheses adopted as the foundations for setting these TPCs. In accordance with adaptive management practices, the TPCs will be revised as the ecological and conceptual understanding of invasions grows and information is gained through research in the KNP and elsewhere.Conservation implication: In accepting that species and systems are variable, and that flux is inevitable and desirable, these TPCs developed for invasive alien species specifi cally, provide end points against which monitoring can be assessed. Once a threshold is reached, the cause of the threshold being exceeded is examined and management interventions recommended.

scholarly journals SABANA DI JAWA BALI LOMBOK SERTA KEKUNOAN SABANA BALURAN (Sabana in Java Bali Lombk and Ancient of Baluran Sabana)

2019 ◽  
Vol 11 (1) ◽  
pp. 19-27
Author(s):  
Sutomo ◽  
Eddie van Etten
Keyword(s):  
Alien Species ◽  
Invasive Alien Species ◽  
Climatic Factors ◽  
Floristic Composition ◽  
Fire Regimes ◽  
Lantana Camara ◽  
Acacia Nilotica ◽  
Grass Species ◽  
Eastern Region ◽  
Chromolaena Odorata

Savanna is a type of ecosystem in the lowlands or highlands, where the community consists of several trees that are spread unevenly and the lower layers are dominated by grasses. Savanna is very common in very dry areas in Nusa Tenggara. However, in some places in Java, Savanna can also be found. The widest Savanna in Java is Savanna in Baluran National Park, East Java. Information about the occurrence and formation (composition of vegetation) of Savanna in Indonesia, especially in wet areas, such as Java, Bali and Lombok, is still very rare. This paper compares and distinguishes the characteristics of vegetation from four Savanna (Java - Bali - Lombok) in the ‘wet’ area ‘which has a higher rainfall than the eastern region where savanna is more common in the Indonesian archipelago, to find out what the vegetation features are like can tell us about the origin, maintenance and age of this savanna. The results of this study indicate there are different gradients in elevation (along with related climatic factors such as temperature and rainfall) and fire regimes associated with floristic composition in Savanna Java, Bali and Lombok. Each Savanna is characterized by a variety of different woody and grass species, where Invasive Alien Species (IAS), such as Acacia nilotica, Lantana camara and Chromolaena odorata, are very important in distinguishing between Savanna and other savannas? The characteristics of the species from Savanna Baluran indicate that this ecosystem may be an old Savanna, while other Savanna may be newly formed and their existence is maintained by fire or fire. ABSTRAKSabana adalah tipe ekosistem di dataran rendah atau dataran tinggi yang komunitasnya terdiri atas beberapa pohon yang tersebar tidak merata dan lapisan bawahnya didominasi oleh suku rumput-rumputan. Sabana sangat umum dijumpai di wilayah yang sangat kering di Nusa Tenggara. Meskipun demikian, di beberapa tempat di Pulau Jawa juga dapat dijumpai sabana. Sabana terluas di Pulau Jawa adalah sabana di Taman Nasional Baluran, Jawa Timur. Informasi tentang bagaimana terjadinya serta formasi (komposisi vegetasi) sabana di Indonesia, terutama di daerah basah, seperti Jawa, Bali, dan Lombok, masih sangat jarang. Makalah ini membandingkan dan membedakan karakteristik vegetasi antara empat sabana daerah ‘basah’ di Jawa, Bali, dan Lombok yang memiliki curah hujan lebih tinggi dibanding sabana di kawasan timur Kepulauan Indonesia. Perbandingan ini dilakukan untuk mengetahui fitur vegetasi yang memuat informasi tentang asal-usul, pemeliharaan (maintenance), dan usia sabana ini. Hasil penelitian menunjukkan bahwa terdapat gradien yang berbeda dalam hal elevasi (bersama dengan faktor iklim terkait, seperti suhu dan curah hujan) dan rezim api terkait dengan komposisi floristik di sabana Jawa, Bali, dan Lombok. Setiap sabana dicirikan oleh berbagai spesies berkayu dan rumput yang berbeda yang di dalamnya Invasive Alien Species (IAS), seperti Acacia nilotica, Lantana camara, dan Chromolaena odorata, menjadi jenis yang sangat penting untuk membedakan antara sabana dan sabana yang lain. Karakteristik spesies sabana Baluran menunjukkan bahwa ekosistem ini mungkin merupakan sabana tua, sedangkan sabana yang lain mungkin baru terbentuk dan keberadaannya tetap terpelihara oleh adanya api atau kebakaran.

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