scholarly journals Assessment of Wildlife Habitats Using Geo-Spatial Techniques; Implications for Long-Term Habitat Management of Girnar Wildlife Sanctuary, Gujarat, India

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
D Aditya
Keyword(s):  
Habitat Management ◽  
Wildlife Sanctuary

scholarly journals Adjacency to a harvest trail increases drought resistance of interior Douglas-fir (Pseudotsuga menziesii var. glauca) in partially harvested stands in central British Columbia

2018 ◽  
Vol 48 (7) ◽  
pp. 809-820 ◽  
Author(s):  
Neil P. Thompson ◽  
Kathy J. Lewis ◽  
Lisa M. Poirier
Keyword(s):  
British Columbia ◽  
Drought Tolerance ◽  
Pseudotsuga Menziesii ◽  
Growth Rates ◽  
Habitat Management ◽  
Odocoileus Hemionus ◽  
Douglas Fir ◽  
Ring Analysis ◽  
The Relationship

Drought tolerance of trees may be affected by competition, but most studies quantifying the relationship do not consider the effect of stem clustering. Trees are often clustered in interior Douglas-fir (Pseudotsuga menziesii var. glauca (Mayr) Franco) forests near the grassland interface in central British Columbia due to past harvesting practices or habitat management for mule deer (Odocoileus hemionus hemionus (Rafinesque, 1817)). Climate change projections indicate continued increases in temperature, an outcome that would stress trees growing in dry environments. Trees placed in different states of competition by mechanical harvesting in the 1970s were sampled to provide a 40-year comparison of three levels of competition during 1–2 year droughts. Tree-ring analysis was used to assess the reduction in growth during drought years and resumption of growth in subsequent years. A clear separation of growth rates was evident between open-growing trees, trees on the edge of harvesting trails, and trees within the unharvested interior. Edge trees had intermediate growth rates but no differences were found in the long-term climate–growth relationship compared with open-growing trees. Both Edge and Open classes showed less relative growth reduction during droughts than Interior trees growing between harvest trails. Precipitation throughfall rates and competition for resources are likely driving short-term drought tolerance in combination with other factors.

scholarly journals Corrugated Galvanised Iron Sheet as an Alternative to Conventional Roofing Materials “A case study from Sakteng Wildlife Sanctuary, Bhutan”

2018 ◽  
Vol 6 (01) ◽  
Author(s):  
Sonam Tobgay ◽  
Kumbu Dorji ◽  
Norbu Yangdon
Keyword(s):  
Habitat Management ◽  
Positive Impact ◽  
Natural Habitat ◽  
Drainage System ◽  
Development Program ◽  
Wildlife Sanctuary ◽  
Run Off ◽  
Community Pressure ◽  
The Impact ◽  
Roofing Materials

Corrugated galvanized iron (CGI) sheet as an alternative to conventional roofing material was initiated under the integrated conservation development program (ICDP) of Sakteng Wildlife Sanctuary in the year 2004. The program was aimed at reducing community pressure on natural resources to enhance conservation of biodiversity and keystone fauna and flora species through protection of wild habitat. It has benefited 628 inhabitants of Merak and Sakteng which were identified as the least developed among 15 Gewogs (Blocks) under Trashigang Dzongkhag (District). Data were collected through semi structured questionnaires to study the impact of the program to policy and natural habitat management. Amongst the two types of conventional roofing materials available in the locality, Shingles (79%) were in extensive use in comparison to Bamboo mat (21%) attributing to its durability. However, people prefer to use CGI sheet (100%) roofing which is economical, durable and effective in comparison to Shingle and Bamboo mat roofing, where incidences of water seepage to the room is frequent and requires replacing after 5.6 and 1.7 years respectively incurring higher maintenance costs. Replacing conventional roofing with CGI sheet has a long-term positive impact to conservation of forest and wild habitat. It is estimated that under ideal conditions approximately 5521 healthy matured Fir trees (>4'1''girth) and 1.68 million Bamboos were saved from felling since the initial supply of CGI sheet. However, effective roofing has led to the construction of the illegal permanent concrete huts in the Tsamdro (pastureland) and changes in the architectural designs of their native houses. The need of proper drainage system was also observed as important to reduce the gully erosion from CGI sheet roof run-off.

scholarly journals Impacts of survival and reproductive success on the long-term population viability of reintroduced great bustards Otis tarda in the UK

Oryx ◽  
2015 ◽  
Vol 50 (4) ◽  
pp. 583-592 ◽  
Author(s):  
Kate Ashbrook ◽  
Andrew Taylor ◽  
Louise Jane ◽  
Ian Carter ◽  
Tamás Székely
Keyword(s):  
Habitat Management ◽  
Bird Species ◽  
Population Viability ◽  
Adult Survival ◽  
Wild Populations ◽  
Great Bustard ◽  
Otis Tarda ◽  
Demographic Rates ◽  
The Uk

AbstractReintroductions aim to re-establish species within their historical ranges through the release of wild- or captive-bred individuals following extirpation (or extinction) in the wild. There is no general agreement on what constitutes a successful reintroduction but the probability of the population achieving long-term persistence should be addressed. Here we review a 10-year trial reintroduction of the great bustard Otis tarda, a globally threatened bird species, to the UK and assess the long-term population viability. Despite changes in rearing and release strategy, initial post-release survival probability remained consistently low, with only 11.3% of bustards (n = 167) surviving from release to 1 year post-release. Nineteen breeding attempts were made by eight females; however, only one chick survived > 100 days after hatching, and no wild juveniles have recruited into the population. Using demographic rates from the UK population and wild populations elsewhere, and stochastic population modelling, we investigate the viability of this reintroduced population by predicting population size over the next 10 years. Under current demographic rates the population was predicted to decline rapidly. Self-sufficiency was predicted only using the highest estimates from the UK population for first-year and adult survival, and recruitment rates from wild populations elsewhere. Although changes have been made in rearing, release strategies, habitat management and release sites used, these changes appear to have a modest effect on long-term viability. Substantial improvements in survival rates and productivity are necessary to establish a viable great bustard population in the UK, and we consider this unlikely.

scholarly journals Long-term habitat changes in a protected area: Implications for herpetofauna habitat management and restoration

PLoS ONE ◽  
2018 ◽  
Vol 13 (2) ◽  
pp. e0192134 ◽  
Author(s):  
Chantel E. Markle ◽  
Gillian Chow-Fraser ◽  
Patricia Chow-Fraser
Keyword(s):  
Protected Area ◽  
Habitat Management ◽  
Habitat Changes

scholarly journals Moose Habitat Management and Timber Management Planning: Three Case Studies

1988 ◽  
Vol 64 (3) ◽  
pp. 270-276
Author(s):  
D. Payne ◽  
J. McNicol ◽  
G. Eason ◽  
D. Abraham
Keyword(s):  
Case Studies ◽  
Habitat Management ◽  
Planning Process ◽  
Timber Harvesting ◽  
Lessons Learned ◽  
Management Planning ◽  
Forest Management Planning ◽  
Long Term Follow Up

Three case studies are presented in this paper that illustrate how timber harvesting practices were modified to address wildlife and silvicultural concerns. The planning process (i.e., negotiations between the Ministry of Natural Resources and the logging companies), problems encountered, and lessons learned are emphasized. Modifications to clearcutting most commonly used were block cuts (i.e., cut and leave) and linear reserves. Timing and communication are cited as serious problems in two cases and solutions are offered. Also, the logging companies in all three cases were concerned about the added expense of modified harvesting (e.g., higher road and layout costs, some loss of timber volume, and higher operating costs). Throughout, the need for more high quality moose inventory data and long-term follow-up study is made clear. Key words: case histories, modified harvest, forest management planning, moose habitat management.

scholarly journals Amphibians and reptiles of Wildsumaco Wildlife Sanctuary, Napo Province, Ecuador

Check List ◽  
2021 ◽  
Vol 17 (3) ◽  
pp. 729-751
Author(s):  
Jeffrey D. Camper ◽  
Omar Torres-Carvajal ◽  
Santiago R. Ron ◽  
Jonas Nilsson ◽  
Alejandro Arteaga ◽  
...  
Keyword(s):  
Secondary Forest ◽  
Iucn Red List ◽  
Primary Forest ◽  
Wildlife Sanctuary ◽  
Amphibian Species ◽  
Diverse Species ◽  
Transect Sampling ◽  
Reptile Species ◽  
Elevational Range

We conducted a long-term inventory of the herpetofauna of Wildsumaco Wildlife Sanctuary in the eastern part of the Napo Province in Ecuador. This private preserve is about 500 ha in size and is located on the southern slopes of Volcán Sumaco. The preserve contains primary forest, secondary forest, and pasture habitats. Based mostly on nocturnal transect sampling we documented 39 species of amphibians including one species of salamander, two species of caecilians, and 36 species of frogs. Rain frogs (Pristimantis Jiminez de la Espada, 1871) were diverse with 14 species documented. A diverse species assemblage of 45 reptile species was also documented on the preserve. Six amphibian species found were listed by the IUCN Red List. At least three species exhibited substantial geographic range extensions and seven species showed elevational range extensions. We discovered several undescribed species including one salamander, three frogs, one lizard, and one snake.

scholarly journals Alarming population status of the Grizzled Giant Squirrel Ratufa macroura (Mammalia: Rodentia: Sciuridae) in Chinnar Wildlife Sanctuary, the Western Ghats, India

2018 ◽  
Vol 10 (10) ◽  
pp. 12350-12356
Author(s):  
Kiran Thomas ◽  
Paingamadathil Ommer Nameer
Keyword(s):  
Population Density ◽  
Western Ghats ◽  
Habitat Restoration ◽  
Population Estimation ◽  
Total Count ◽  
Population Status ◽  
Wildlife Sanctuary ◽  
Southern Western Ghats ◽  
The Western Ghats

This study was carried out to assess the population of Ratufa macroura in Chinnar Wildlife Sanctuary located in the Kerala part of the southern Western Ghats.  The population density of Ratufa macroura was estimated to be 15.26 squirrels/km2.  The total count method, however, gave the population range between 11 to 14 squirrels.  The current population estimation is about 78–85 % lesser than the previous population estimation of the Ratufa macroura carried out in 1993 and 2007 respectively, which is quite alarming.  The following conservation recommendations are suggested for the long-term conservation of R. macroura, which include habitat restoration to maintain the canopy contiguity and regulation of the pilgrimage and the tourism activities in and around the R. macroura habitat.  Urgent steps should also be taken to undertake studies on the genetics of R. macroura.  It is also suggested that systematic and scientific monitoring of the population of R. macroura be undertaken on a regular basis.

Sign in / Sign up

Export Citation Format

Share Document