Primate diversity, habitat preferences, and population density estimates in Noel Kempff Mercado National Park, Santa Cruz Department, Bolivia

AbstractOcelots were historically hunted for their skins but habitat loss is now their most serious threat, causing rapid declines in populations throughout their range. Ocelot abundance has been estimated for various locations across the Neotropics, but we still lack this information from some countries, including Ecuador. Knowing whether ocelot abundance is increasing or decreasing is important to assess the conservation status of this species and the conditions of its habitats in the Ecuadorian Amazon and in the region. To determine whether ocelot abundance and its behavior are affected by human-related activities, camera-trap surveys were carried out in two localities of Yasuní National Park (YNP), one that has experienced hunting, oil extraction, and roads (Maxus Road) and one that is largely unaffected by these activities (Lorocachi). During the survey, 35 and 36 individual ocelots were photographed in Maxus Road and Lorocachi, respectively. Population density estimates were similar for both localities, ranging from 0.31 (SE±6) to 0.85 (SE±17) ocelots/km

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Population density and habitat preferences of forest duikers in Moukalaba-Doudou National Park, Gabon

African Zoology ◽

10.1080/15627020.2013.11407608 ◽

2013 ◽

Vol 48 (2) ◽

pp. 395-399 ◽

Cited By ~ 1

Author(s):

Yoshihiro Nakashima ◽

Eiji Inoue ◽

Etienne-François Akomo-Okoue

Keyword(s):

Population Density ◽

National Park ◽

Habitat Preferences

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Population Density and Habitat Preferences of Forest Duikers in Moukalaba-Doudou National Park, Gabon

African Zoology ◽

10.3377/004.048.0212 ◽

2013 ◽

Vol 48 (2) ◽

pp. 395-399 ◽

Cited By ~ 5

Author(s):

Yoshihiro Nakashima ◽

Eiji Inoue ◽

Etienne-François Akomo-Okoue

Keyword(s):

Population Density ◽

National Park ◽

Habitat Preferences

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Population density and habitat preferences of the Black-cheeked Ant-tanager Habia atrimaxillaris

Bird Conservation International ◽

10.1017/s0959270914000215 ◽

2014 ◽

Vol 25 (3) ◽

pp. 306-321 ◽

Cited By ~ 3

Author(s):

JESSICA S. CORNILS ◽

ISABELL RIEDL ◽

JULIAN FRICKE ◽

MORITZ KATZ ◽

CHRISTIAN H. SCHULZE

Keyword(s):

Population Density ◽

Population Size ◽

National Park ◽

Forest Cover ◽

Negative Impact ◽

Habitat Preferences ◽

Distance Sampling ◽

Old Growth ◽

Lowland Forest ◽

Old Growth Forest

SummaryThe lowland forest on the southern Pacific slope of Costa Rica has an extremely diverse avifauna, including the Black-cheeked Ant-tanager Habia atrimaxillaris. The only known remaining populations of this highly range-restricted species occur in the areas of Piedras Blancas and Corcovado National Park. It is assumed that the population is decreasing due to habitat loss and fragmentation. We assessed the species’ population density in a part of the Piedras Blancas National Park using distance sampling (in February–April 2009 and November 2010–January 2011) and territory mapping (November 2010–January 2011). We also examined habitat preferences based on vegetation structure at point count locations. Black-cheeked Ant-tanagers were exclusively found in old-growth forest. The species’ likelihood of occurrence at census points increased with forest cover (within a radius of 200 m around census points), canopy closure, and density of trees (with diameter at breast height >10 cm). Average population density estimated by distance sampling was 24–27 individuals per km², which is in accordance with the population size estimated by territory mapping (17–25 birds per km²). Based on these estimates, an overall population size of 12,432–20,720 birds is predicted for the remaining 592 km² lowland forest area of the Golfo Dulce region. The Black-cheeked Ant-tanager was only recorded in old-growth forest, but not in gallery forests embedded in a human-dominated landscape matrix. Since the species appears to avoid forest edges, further forest degradation and fragmentation will have a strong negative impact and should be rapidly reduced by adequate conservation measures.

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Gran Paradiso: Erkenntnisse aus der sich natürlich regulierenden Steinbockpopulation|Gran Paradiso: Conclusions from the naturally regulated Capricorn population

Schweizerische Zeitschrift fur Forstwesen ◽

10.3188/szf.2007.0349 ◽

2007 ◽

Vol 158 (11) ◽

pp. 349-352

Author(s):

Grégory Amos ◽

Ambroise Marchand ◽

Anja Schneiter ◽

Annina Sorg

Keyword(s):

Nineteenth Century ◽

Population Density ◽

National Park ◽

Optimal Management ◽

Capra Ibex ◽

Large Fluctuations ◽

The Alps ◽

Gran Paradiso ◽

Gran Paradiso National Park

The last Capricorns (Capra ibex ibex) in the Alps survived during the nineteenth century in the Aosta valley thanks to the royal hunting reservation (today Gran Paradiso national park). Capricorns from this reservation were successfully re-introduced in Switzerland after its Capricorn population had disappeared. Currently in Switzerland there are 13200 Capricorns. Every year 1000 are hunted in order to prevent a large variation and overaging of their population and the damage of pasture. In contrast, in the Gran Paradiso national park the game population regulates itself naturally for over eighty years. There are large fluctuations in the Capricorn population (2600–5000) which are most likely due to the climate, amount of snow, population density and to the interactions of these factors. The long-term surveys in the Gran Paradiso national park and the investigations of the capacity of this area are a valuable example for the optimal management of the ibexes in Switzerland.

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Body size, sex and high philopatry influence the use of agricultural land by Galapagos giant tortoises

Oryx ◽

10.1017/s0030605320001167 ◽

2021 ◽

pp. 1-10

Author(s):

Kyana N. Pike ◽

Stephen Blake ◽

Freddy Cabrera ◽

Iain J. Gordon ◽

Lin Schwarzkopf

Keyword(s):

National Park ◽

Agricultural Land ◽

Large Male ◽

Gps Data ◽

Santa Cruz Island ◽

Santa Cruz ◽

Agricultural Areas ◽

On Farm ◽

Human Wildlife Conflict ◽

Privately Owned

Abstract As agricultural areas expand, interactions between wild animals and farmland are increasing. Understanding the nature of such interactions is vital to inform the management of human–wildlife coexistence. We investigated patterns of space use of two Critically Endangered Galapagos tortoise species, Chelonoidis porteri and Chelonoidis donfaustoi, on privately owned and agricultural land (hereafter farms) on Santa Cruz Island, where a human–wildlife conflict is emerging. We used GPS data from 45 tortoises tracked for up to 9 years, and data on farm characteristics, to identify factors that influence tortoise movement and habitat use in the agricultural zone. Sixty-nine per cent of tagged tortoises used the agricultural zone, where they remained for a mean of 150 days before returning to the national park. Large male tortoises were more likely to use farms for longer periods than female and smaller individuals. Tortoises were philopatric (mean overlap of farmland visits = 88.7 ± SE 2.9%), on average visiting four farms and occupying a mean seasonal range of 2.9 ± SE 0.3 ha. We discuss the characteristics of farm use by tortoises, and its implications for tortoise conservation and coexistence with people.

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KEPADATAN POPULASI MAMALIA DARAT KARNIVORA DI CAMP LEAKEY KAWASAN TAMAN NASIONAL TANJUNG PUTING, KALIMANTAN TENGAH

Jurnal BIOMA ◽

10.21009/bioma12(2).3 ◽

2017 ◽

Vol 12 (2) ◽

pp. 83

Author(s):

Siwi Arthapati Mandiri ◽

Paskal Sukandar ◽

Yossa Istiadi

Keyword(s):

Data Collection ◽

Population Density ◽

National Park ◽

Line Transect ◽

Line Transect Sampling ◽

Clouded Leopard ◽

Helarctos Malayanus ◽

Transect Sampling ◽

Palm Civet ◽

Leopard Cat

Borneo has wide land that support high biodiversity. One of them is Tanjung Puting National Park (TPNP), which have biodiversity such as terrestrial mammalian carnivore. Carnivore has a role to maintain its ecosystems. But, there are no data for population density of terrestrial mammalian carnivore. The object of this research is to find out population density of terrestrial mammalian carnivore in Camp Leakey, TPNP, Central Borneo. This research accomplished in September-October 2015 in Camp Leakey. Using line-transect sampling. Data collection was accomplished at 18.00-24.00 Central Indonesian Time (WITA) on eight transects with three times replication by direct surveys and indirect surveys. This research has obtained five species, malayan sun bear (Helarctos malayanus), sunda clouded leopard (Neofelis diardi), leopard cat, and group of civet, like small-toothed palm civet (Arctogalidia trivirgata) and asian palm civet (Paradoxurus hermaphroditus). Population density of each species from the highest to the lowest is 13,5 Individual of leopard cat/km2, 9,84 Individual of malayan sun bears/km2, 4,31 Individual of sunda clouded leopard/km2, and 3,65 Individual of civet/km2. Malayan sun bears, sunda clouded leopards and civets prefer to be in land forest. Leopard cats prefers to be in transition forest.

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Optimum Carrying Capacity for Bison in Theodore Roosevelt National Park

The UW National Parks Service Research Station Annual Reports ◽

10.13001/uwnpsrc.1982.2333 ◽

1982 ◽

Vol 6 ◽

pp. 95-97

Author(s):

Clayton Marlow ◽

Lynn Irby ◽

Jack Norland

Keyword(s):

Population Density ◽

Carrying Capacity ◽

Food Habits ◽

National Park ◽

Theodore Roosevelt ◽

Secondary Use ◽

Range Condition ◽

Theodore Roosevelt National Park ◽

Management Priorities ◽

Capacity Estimates

This project was designed to determine the optimum population size for bison in the Theodore Roosevelt National Park (TRNP) by fulfilling the following objectives: 1. Delineate primary and secondary bison ranges; 2. Determine forage productivity for major range sites within primary and secondary use areas; 3. Determine the general seasonal food habits of bison in TRNP; 4. Determine range condition under present population density of bison and the maximum carrying capacity of primary use areas; and 5. Integrate range condition and carrying capacity estimates with management priorities for bison on the TRNP.

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