scholarly journals Birds of La Plata Island, Machalilla National Park, Ecuador

2016 ◽  
Author(s):  
Diego F Cisneros-Heredia
Keyword(s):  
Native Species ◽  
National Park ◽  
Passer Domesticus ◽  
La Plata ◽  
Sula Granti ◽  
Sula Leucogaster ◽  
Phoebastria Irrorata ◽  
First Time ◽  
Term Monitoring

La Plata Island, Machalilla National Park, is located 30 km off the Ecuadorian coast. In June 2000, I surveyed the avifauna of La Plata Island. In total I observed 57 species of birds (25 families). At least 17 species are known to breed on the island; in fact, for mainland Ecuador, Waved Albatross Phoebastria irrorata, Red-billed Tropicbird Phaethon aethereus, Nazca Booby Sula granti, and Red-footed Booby Sula sula only breed in La Plata. Long-tailed Mockinbird subspecies Mimus longicaudatus platensis is the only endemic bird taxon of the island. House Sparrow Passer domesticus is the only non-native species of the island. Brown Booby Sula leucogaster, Ecuadorian Ground-Dove Columbina buckleyi, Little Woodstar Chaetocercus bombus and Yellow-bellied Elaenia Elaenia flavogaster are reported for the first time on the island. Isla de La Plata maintains an important biodiversity, and it is necessary to implement conservation, management and tourism plans on a sustainable way along with long-term monitoring studies of the fauna and flora.

scholarly journals Birds of La Plata Island, Machalilla National Park, Ecuador

2016 ◽  
Author(s):  
Diego F Cisneros-Heredia
Keyword(s):  
Native Species ◽  
National Park ◽  
Passer Domesticus ◽  
La Plata ◽  
Sula Granti ◽  
Sula Leucogaster ◽  
Phoebastria Irrorata ◽  
First Time ◽  
Term Monitoring

La Plata Island, Machalilla National Park, is located 30 km off the Ecuadorian coast. In June 2000, I surveyed the avifauna of La Plata Island. In total I observed 57 species of birds (25 families). At least 17 species are known to breed on the island; in fact, for mainland Ecuador, Waved Albatross Phoebastria irrorata, Red-billed Tropicbird Phaethon aethereus, Nazca Booby Sula granti, and Red-footed Booby Sula sula only breed in La Plata. Long-tailed Mockinbird subspecies Mimus longicaudatus platensis is the only endemic bird taxon of the island. House Sparrow Passer domesticus is the only non-native species of the island. Brown Booby Sula leucogaster, Ecuadorian Ground-Dove Columbina buckleyi, Little Woodstar Chaetocercus bombus and Yellow-bellied Elaenia Elaenia flavogaster are reported for the first time on the island. Isla de La Plata maintains an important biodiversity, and it is necessary to implement conservation, management and tourism plans on a sustainable way along with long-term monitoring studies of the fauna and flora.

scholarly journals Monitoring Selected Species of Mammals in Grand Teton National Park in 2001

2001 ◽  
Vol 25 ◽  
pp. 82-87
Author(s):  
Brian Miller ◽  
Hank Harlow
Keyword(s):  
National Park ◽  
Vegetation Type ◽  
Vegetation Types ◽  
Population Composition ◽  
Grand Teton National Park ◽  
Needed Information ◽  
Mammal Distribution ◽  
The Impact ◽  
Term Monitoring

Our objective is to establish a long-term monitoring project that will assess the abundance and densities of selected species of mammals at sites representing five defined vegetation types found in Grand Teton National Park. The term monitoring implies data collection over multiple years. Taking long term estimations of population composition before, during, and after biotic and abiotic changes provides needed information to assess the impacts of such changes and furnish useful options for management decisions. This standardized monitoring plan will provide information on small and medium-sized mammals that will (1) assess species use of habitat, (2) monitor changes in species composition as a result of environmental change, such as precipitation and temperature, (3) produce predictive models of small and medium-sized mammal distribution based on vegetation type, and (4) analyze the impact of wolf colonization on the mammal (and plant) community.

scholarly journals Applying LiDAR to Quantify the Plant Area Index Along a Successional Gradient in a Tropical Forest of Thailand

Forests ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 520
Author(s):  
Siriruk Pimmasarn ◽  
Nitin Kumar Tripathi ◽  
Sarawut Ninsawat ◽  
Nophea Sasaki
Keyword(s):  
National Park ◽  
Forest Succession ◽  
Secondary Forests ◽  
Area Index ◽  
Khao Yai National Park ◽  
Plant Area Index ◽  
Plant Area ◽  
Successional Process ◽  
Term Monitoring

Long-term monitoring of vegetation is critical for understanding the dynamics of forest ecosystems, especially in Southeast Asia’s tropical forests, which play a significant role in the global carbon cycle and have continually been converted into various stages of secondary forests. In Thailand, long-term monitoring of forest dynamics during the successional process is limited to plot scales assuming from the distinct structure of successional stages. Our study highlights the potential of coupling airborne light detection and ranging (LiDAR) technology and stand age data derived from Landsat time-series to track back forest succession, and infer patterns in the plant area index (PAI) recovery. Here, using LIDAR data, we estimated the PAI of the 510 sample plots of a seasonal evergreen forest dispersed over the study area in Khao Yai National Park, Thailand, capturing a successional gradient of tropical secondary forests. The sample plots age was derived from the available Landsat time-series dataset (1972–2017). We developed a PAI recovery model during the first 42 years of the succession process. We investigated the relationship between the model residuals and PAI values with topographic factors, such as elevation, slope, and topographic wetness index. The results show that the PAI increased non-linearly (pseudo-R2 of 0.56) during the first 42 years of forest succession, and all three topographic factors have less influence on PAI variability. These results provide valuable information of the spatio-temporal PAI patterns during the successional process and help understand the dynamics of tropical secondary forests in Khao Yai National Park, Thailand. Such information is essential for forest management and local, regional, and global PAI synthesis. Moreover, our results provide significant information for ground-based spatial sampling strategies to enable more accurate PAI measurements.

Estimating the abundance of the bilby (Macrotis lagotis): a vulnerable, uncommon, nocturnal marsupial

2015 ◽  
Vol 37 (1) ◽  
pp. 75 ◽  
Author(s):  
Gregory William Lollback ◽  
Rachel Mebberson ◽  
Niki Evans ◽  
Jonathan David Shuker ◽  
Jean-Marc Hero
Keyword(s):  
National Park ◽  
Distance Sampling ◽  
Abundance Estimation ◽  
Dramatic Decrease ◽  
South West ◽  
Population Crash ◽  
Pellet Density ◽  
Long Term Monitoring ◽  
Term Monitoring

The bilby (Macrotis lagotis) is listed as Vulnerable in Australia, is strictly nocturnal and shy, and it has proven difficult to estimate its population abundance. The aim of this study was to determine methodology that would reliably estimate the abundance of the bilby within an enclosure at Currawinya National Park, south-west Queensland. We estimated the abundance of bilbies on long-term monitoring plots by counting pellets comparing two methods: counting standing odorous pellets using distance sampling and counting newly deposited pellets (FAR). Pellet deposition rate and decay rate were also estimated to enable population estimation using distance sampling. The density of odorous (<14 days old) standing pellets and old pellets was highest in October 2011 and dropped dramatically when plots were revisited in March 2012 and July 2012. Counting standing pellets using distance sampling provided a rigorous estimate of abundance of bilbies at Currawinya. Bilby density and pellet deposition rates were too low for the FAR method to accurately or precisely estimate bilby density. A population crash within the enclosure following an invasion of feral cats was mirrored by a dramatic decrease in pellet density. Incorporating detectability into abundance estimation should be carefully considered for conservation purposes.

scholarly journals Herpetofaunal diversity of West Bali National Park, Indonesia with identification of indicator species for long-term monitoring

2021 ◽  
pp. e01638
Author(s):  
A.A. Thasun Amarasinghe ◽  
Chairunas A. Putra ◽  
Sujan M. Henkanaththegedara ◽  
Asri A. Dwiyahreni ◽  
Nurul L. Winarni ◽  
...  
Keyword(s):  
Indicator Species ◽  
National Park ◽  
Long Term Monitoring ◽  
Term Monitoring

scholarly journals Dynamics of gamma diversity and abundance of diurnal butterflies (Lepidoptera, Papilionoformes) in the Nizhny Novgorod Region (Russia) under anthropogenic changes in landscapes over the last hundred years

2021 ◽  
Vol 4 (4) ◽  
pp. 32-41
Author(s):  
Stanislav K. Korb
Keyword(s):  
Russian Regions ◽  
Gamma Diversity ◽  
Natural Conditions ◽  
Boreal Species ◽  
Long Term Monitoring ◽  
Near Future ◽  
First Time ◽  
Term Monitoring ◽  
Nizhny Novgorod Region

The hundred-year dynamics of gamma diversity and butterflies’ abundance have been assessed for the first time in Russia for the Nizhny Novgorod Region. According to analyzed data, we forecast that no significant change in the number of 104 species of butterflies is expected, the number of 33 species in the near future is likely to increase, and the number of 11 species will continue to decline in the near future. A decrease in abundance of 23 steppe and arcto-boreal species is also expected. The reasons for the decrease in the number of species are considered, supported by the long-term monitoring dataset. Extrapolation of our conclusions for Russian regions with similar conditions (Kirov, Ivanovsk, Vladimir, Kostroma, Penza, and Ulyanovsk regions and the Republics of Mari El, Chuvash, and Mordovia), taking into account the natural conditions of these areas, seems applicable and promising.

scholarly journals Features of the dynamics of the herbal plants life forms of the meadow communities of the Ugra National Park at the different conditions of anthropogenic impact on the basis of permanent monitoring

2019 ◽  
Vol 9 (2) ◽  
pp. 201-227
Author(s):  
F.A. Maslov ◽  
E.I. Kurchenko ◽  
I.M. Ermakova ◽  
N.S. Sugorkina ◽  
V.G. Petrosyan
Keyword(s):  
Plant Species ◽  
National Park ◽  
Anthropogenic Impact ◽  
Life Forms ◽  
Meadow Communities ◽  
Herbal Plants ◽  
Kaluga Region ◽  
Long Term Monitoring ◽  
Term Monitoring

The article presents the analysis of the influence of anthropogenic conditions on the dynamics of life forms of meadow plants using the indices of the average number and stability of life forms based on data from long-term monitoring of Zalidov meadows of Kaluga region. It is shown that regular mowing leads to an increase in rod-root plants and an abundance of economically insignificant species. With regular moderate grazing, the number of long root-growing life forms increases, and the abundance of high-value plant species increases. It has been established that for rational use of Zalidov meadows, haying and pasture regimes should be alternated. The issues of the applicability of the indices used to identify general trends in the development of the meadow community depending on anthropogenic impact are discussed.

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