Estimation and spatial distribution of some soil erodibility parameters in soils of Ilgaz National Park

Tarsius lariang (T. lariang) is an endemic species in Lore Lindu National Park (LLNP). Available information regarding T. lariang is limited to only morphological, anatomical, cytogenetic, and voices issues. Knowledge for its geospatial characteristics such as spatial preferences and spatial distribution is rare. The main objective of this study is to identify the spatial distribution pattern of T. lariang in LLNP. An additional objective is to identify the environmental factors affecting its spatial distribution patterns. Field observation for distribution pattern was done at the observation plot that were using systematic sampling with random start. Furthermore, the density estimation in each point was calculated using Triangle Count and Concentration Count method, while insect abundance was estimated using light traps sample data. Finally, spatial pattern was estimated using nearest neighbor index, while the environmental affecting factors were identified by using spatial analysis and correlation analyses. From 45 observation points, the T. lariang distribution pattern was clumped. It is also recognized that the significant factors affecting the spatial distribution were insect abundance, proximity from the commercially utilized land, and land surface temperature.

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Spatial distribution of spruce trees in the nature reserve 'Jankove bare' on mt. Kopaonik

Glasnik Sumarskog fakulteta ◽

10.2298/gsf0900191s ◽

2009 ◽

pp. 191-204

Author(s):

Branko Stajic ◽

Milivoj Vuckovic ◽

Marko Smiljanic

Keyword(s):

Spatial Distribution ◽

Tree Growth ◽

Environmental Conditions ◽

National Park ◽

Nature Reserve ◽

Distance Methods ◽

Study Results

The methodology and applicability of the study of spatial distribution of trees in Serbian forestry have been insufficiently reported and presented. This paper, based on mathematical?statistical principles, analyses the method of spatial distribution of spruce trees in the Nature Reserve 'Jankove Bare' in the National Park 'Kopaonik'. The following methods in the group of distance methods were applied: Kotar's method (1993), T2?method, and the index of distance dispersion (Johnson, Zimmer, 1985). The study results in a pure uneven-aged spruce stand based on all three methods showed that spruce trees are randomly distributed over the stand area. Therefore, environmental conditions in the study stand can be regarded as homogeneous and equally suitable for tree growth, and there are no significant interactions between the trees, which could cause a higher competition between the trees for nutrients, water, etc.

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Estimation of demographic parameters, spatial distribution of activity and its habitat types used of Javan Surili (Presbytis comata) in Sigedong Forest Block, Ciremai Mount National Park

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/528/1/012022 ◽

2020 ◽

Vol 528 ◽

pp. 012022

Author(s):

Yanto Santosa ◽

Catur Rahmawati ◽

Catharina Yudea Utami

Keyword(s):

Spatial Distribution ◽

National Park ◽

Demographic Parameters ◽

Habitat Types

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Levels and spatial distribution of perfluorinated compounds (PFCs) in superficial sediments from the marine reserves of the Tuscan Archipelago National Park (Italy)

Marine Pollution Bulletin ◽

10.1016/j.marpolbul.2013.07.051 ◽

2013 ◽

Vol 76 (1-2) ◽

pp. 379-382 ◽

Cited By ~ 11

Author(s):

Guido Perra ◽

Silvano Ettore Focardi ◽

Cristiana Guerranti

Keyword(s):

Spatial Distribution ◽

National Park ◽

Marine Reserves ◽

Perfluorinated Compounds ◽

Superficial Sediments

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Spatial distribution of heavy metals in soil with distance from Tazama pipeline through the Mikumi National Park, Tanzania

Journal of Soil Science and Environmental Management ◽

10.5897/jssem2019.0761 ◽

2019 ◽

Vol 10 (5) ◽

pp. 75-81

Author(s):

Jeremiah Mrimi Doreen ◽

William Nyahongo Julius ◽

Olav Vedeld Pål ◽

Hussein Massawe Boniface ◽

Nakakaawa Jjunju Charlotte

Keyword(s):

Heavy Metals ◽

Spatial Distribution ◽

National Park

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Spatial distribution of snares in Ruma National Park, Kenya, with implications for management of the roan antelope Hippotragus equinuslangheldi and other wildlife

Oryx ◽

10.1017/s0030605313000689 ◽

2014 ◽

Vol 49 (2) ◽

pp. 295-302 ◽

Cited By ~ 11

Author(s):

Johnstone K. Kimanzi ◽

Roy A. Sanderson ◽

Stephen P. Rushton ◽

Mware J. Mugo

Keyword(s):

Spatial Distribution ◽

National Park ◽

Negative Binomial ◽

Negative Binomial Regression ◽

Geographical Information ◽

Complete Spatial Randomness ◽

Roan Antelope ◽

Hippotragus Equinus ◽

Using Data ◽

Salt Licks

AbstractPoaching with snares has been identified as the main cause of decline of the endemic roan antelope Hippotragus equinuslangheldi in Ruma National Park, Kenya, from > 200 in 1979 to 37 in 2009. However, the spatial snaring patterns in the Park are not clearly understood. The focus of our study was to map the spatial distribution of snares in the Park and to identify the factors influencing this distribution, to develop effective methods of wildlife protection. Using data collected from 56 sample plots during 2006–2008, coupled with geographical information system techniques, we investigated the association between the occurrence of snares and the distribution of geographical features (slope, elevation), infrastructure (roads, fences), essential resources for wildlife (water, salt licks, forage), roan locations and wildlife density. Ripley's L function for assessing complete spatial randomness indicated that snares occurred in clumps (hotspots) up to 4 km apart. Negative binomial regression indicated that these hotspots occurred (1) near water resources, salt licks and the Park boundary, (2) far from roan locations and Park roads, (3) in areas with low gradients and low wildlife density, and (4) in areas with burned vegetation. We recommend concentrating routine security patrol efforts and resources on snare hotspots to reduce snaring and to protect the roan antelope and other threatened wildlife.

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Preliminary studies on the spatial distribution of artificial 137Cs and natural gamma radionuclides in the region of the Ojców National Park, Poland

Nukleonika ◽

10.2478/nuka-2018-0013 ◽

2018 ◽

Vol 63 (4) ◽

pp. 105-111

Author(s):

Marcin Stobiński ◽

Filip Jędrzejek ◽

Barbara Kubica

Keyword(s):

Spatial Distribution ◽

National Park ◽

Background Radiation ◽

Natural Radionuclides ◽

Organic Matter Content ◽

Matter Content ◽

Gamma Ray Spectrometry ◽

Strong Positive Correlation ◽

Local Climate ◽

Natural Gamma

Abstract The aim of the research is to obtain preliminary information about the spatial distribution of gamma radionuclides in the soils taken from the Ojców National Park with emphasis on the behaviour of artificial radionuclides, with 137Cs as a representative. The natural radionuclides 40K, 226Ra (uranium series), and 228Th (thorium series), which are considered as background radiation, were also determined. In total, 18 soil samples were collected during the summer periods in 2015-2017, while the sampling points were selected with respect to differences in rainfall and local topography gradient. The method was based on gamma-ray spectrometry performed on high-purity germanium (HPGe) gamma detector (relative efficiency 34%). 137Cs was mostly deposited in the top soil layers, with activity in the range of 27.9÷586.6 Bq·kg-1. We found strong positive correlation of the 137Cs activity with the soil organic matter content, and at the same time, its dependence on the rainfall amount. Consequently, the soil types and local climate can control the spatial distribution of 137Cs on a small spatial scale. The quantity of natural radionuclides was highly similar in all samples with the following mean values: 38.0 Bq·kg-1for 228Th, 33.1 Bq·kg-1for 226Ra, and 479.9 Bq·kg-1for 40K.

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