Effects of Management on Biological Diversity and Endangered Species

2013 ◽  
pp. 213-243 ◽  
Author(s):  
Mario Díaz ◽  
William D. Tietje ◽  
Reginald H. Barrett
Keyword(s):  
Endangered Species ◽  
Biological Diversity

scholarly journals Nepal’s National Red List of Birds

2017 ◽  
Vol 9 (1) ◽  
pp. 9700 ◽  
Author(s):  
Carol Inskipp ◽  
Hem Sagar Baral ◽  
Tim Inskipp ◽  
Ambika Prasad Khatiwada ◽  
Monsoon Pokharel Khatiwada ◽  
...  
Keyword(s):  
Endangered Species ◽  
Biological Diversity ◽  
Conservation Status ◽  
Bird Species ◽  
Convention On Biological Diversity ◽  
Wetland Birds ◽  
Distribution Maps ◽  
Critically Endangered Species ◽  
Passerine Species ◽  
Over Exploitation

The main objectives of the Nepal National Bird Red Data Book were to provide comprehensive and up-to-date accounts of all the bird species found in Nepal, assess their status applying the IUCN Guidelines at Regional Levels, identify threats to all bird species and recommend the most practical measures for their conservation.  It is hoped that the Bird RDB will help Nepal achieve the Convention on Biological Diversity target of preventing the extinction of known threatened species and improving their conservation status.  As population changes of Nepal’s birds have been studied for only a few species, assessments of species’ national status were mainly made by assessing changes in distribution.  Species distribution maps were produced for all of Nepal’s bird species except vagrants and compared to maps that were produced in 1991 using the same mapping system.  Of the 878 bird species recorded, 168 species (19%) were assessed as nationally threatened. These comprise 68 (40%) Critically Endangered species, 38 (23%) Endangered species and 62 (37%) Vulnerable species.  A total of 62 species was considered Near Threatened and 22 species Data Deficient.  Over 55% of the threatened birds are lowland grassland specialists, 25% are wetland birds and 24% tropical and sub-tropical broadleaved forest birds.  Larger birds appear to be more threatened than smaller birds with 98 (25%) non-passerine species threatened and 67 (14%) passerine species.  Habitat loss, degradation and fragmentation are the most important threats.  Other threats include chemical poisoning, over-exploitation, climate change, hydropower, invasive species, intensification of agriculture, disturbance, and limited conservation measures and research.  Measures to address these threats are described.  It was also concluded that re-assessments of the status of certain bird groups carried out every five years and the setting up of a national online system for storing and reporting bird sightings would be useful.

scholarly journals Germ cell survival and differentiation after xenotransplantation of testis tissue from three endangered species: Iberian lynx (Lynx pardinus), Cuvier's gazelle (Gazella cuvieri) and Mohor gazelle (G. dama mhorr)

2014 ◽  
Vol 26 (6) ◽  
pp. 817 ◽  
Author(s):  
Lucía Arregui ◽  
Ina Dobrinski ◽  
Eduardo R. S. Roldan
Keyword(s):  
Endangered Species ◽  
Biological Diversity ◽  
Testicular Tissue ◽  
Seminiferous Tubules ◽  
Lynx Lynx ◽  
Lynx Pardinus ◽  
Reproductive Techniques ◽  
First Time ◽  
Potential Use ◽  
Testis Tissue

The use of assisted reproductive techniques for endangered species is a major goal for conservation. One of these techniques, testis tissue xenografting, allows for the development of spermatozoa from animals that die before reaching sexual maturity. To assess the potential use of this technique with endangered species, testis tissue from six Iberian lynxes (one fetus, two perinatal cubs, two 6-month-old and one 2-year-old lynx), two Cuvier’s gazelle fetuses and one 8-month-old Mohor gazelle were transplanted ectopically into nude mice. Tissue from the lynx fetus, perinatal cubs and 2-year-old donors degenerated, whereas spermatogonia were present in 15% of seminiferous tubules more than 70 weeks after grafting in transplanted testis tissue from 6-month-old donors. Seminal vesicle weights (indicative of testosterone production) increased over time in mice transplanted with tissue from 6-month-old lynxes. Progression of spermatogenesis was observed in xenografts from gazelles and was donor age dependent. Tissue from Cuvier’s gazelle fetuses contained spermatocytes 40 weeks after grafting. Finally, round spermatids were found 28 weeks after transplantation in grafts from the 8-month-old Mohor gazelle. This is the first time that xenotransplantation of testicular tissue has been performed with an endangered felid and the first successful xenotransplantation in an endangered species. Our results open important options for the preservation of biological diversity.

scholarly journals Monitoring late-successional forest biodiversity in the Pacific Northwest, U.S.A.

2006 ◽  
Vol 82 (3) ◽  
pp. 364-367 ◽  
Author(s):  
Thomas A Spies ◽  
Jon R Martin
Keyword(s):  
Endangered Species ◽  
Pacific Northwest ◽  
Satellite Imagery ◽  
Ecosystem Management ◽  
Biological Diversity ◽  
Old Growth ◽  
Monitoring Plan ◽  
Effectiveness Monitoring ◽  
The Pacific ◽  
Old Growth Forests

The era of ecosystem management for federal forest lands in the Pacific Northwest began in 1994 with the adoption of the Northwest Forest Plan. This plan was designed to maintain and restore species and ecosystems associated with late successional and old-growth forests on over 10 million ha of federal lands in Washington, Oregon and California. The plan called for implementation monitoring, effectiveness monitoring, and validation monitoring for a variety of ecological and socio-economic components. Monitoring has become a central part of management of the federal forests in the region and managers and scientists have gained considerable experience in implementing this large and complex program. The components of the monitoring plan include late-successional/old growth vegetation, northern spotted owls, marbled murrelets, aquatic habitat and social conditions. The monitoring plan is strongly based on vegetation layer created with TM satellite imagery and on a regional grid of forest inventory plots. The lessons learned from the implementation of this monitoring plan include: 1) agencies need to devote considerable resources to insure that effective monitoring will occur at broad scales; 2) aggregation of local monitoring efforts is not a substitute for a designed regional monitoring plan; 3) vegetation structure and composition, measured with satellite imagery and inventory plots, is a cost-effective, broad-scale indicator of biological diversity; 4) some species, such as threatened and endangered species, are not necessarily covered with habitat approaches and may require population monitoring; 5) our scientific understanding of monitoring components will vary widely as will the approaches to data collection and analysis; 6) monitoring requires research support to develop and test metrics and biodiversity models; 7) links of monitoring to decision-making (adaptive management) are still being forged. Key words: aquatic ecosystems, endangered species, old-growth forests, Pacific Northwest, USA, regional ecosystem management

scholarly journals DNA profiling and assessment of genetic diversity of relict species Allium altaicum Pall. on the territory of Altai

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10674
Author(s):  
Oxana Khapilina ◽  
Olesya Raiser ◽  
Alevtina Danilova ◽  
Vladislav Shevtsov ◽  
Ainur Turzhanova ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Endangered Species ◽  
Biological Diversity ◽  
Vegetative Reproduction ◽  
Natural Populations ◽  
Mobile Genetic Elements ◽  
Ice Age ◽  
Conservation Strategy ◽  
Relict Species ◽  
Genetic Elements

Analysis of the genetic diversity of natural populations of threatened and endangered species of plants is a main aspect of conservation strategy. The endangered species Allium altaicum is a relict plant of the Ice Age and natural populations are located in extreme climatic conditions of Kazakstan’s Altai Mountains. Mobile genetic elements and other interspersed repeats are basic components of a eukaryote genome, which can activate under stress conditions and indirectly promote the survival of an organism against environmental stresses. Detections of chromosomal changes related to recombination processes of mobile genetic elements are performed by various PCR methods. These methods are based on interspersed repeat sequences and are an effective tool for research of biological diversity of plants and their variability. In our research, we used conservative sequences of tRNA primer binding sites (PBS) when initializing the retrotransposon replication as PCR primers to research the genetic diversity of 12 natural populations of A. altaicum found in various ecogeographic conditions of the Kazakhstani Altai. High efficiency of the PBS amplification method used was observed already at the intrapopulation level. Unique amplicons representative of a certain population were found at the intrapopulation level. Analysis of molecular dispersion revealed that the biodiversity of populations of mountainous and lowland A. altaicum is due to intrapopulation differences for climatic zones of habitation. This is likely conditional upon predominance of vegetative reproduction over seed reproduction in some populations. In the case of vegetative reproduction, somatic recombination related to the activity of mobile genetic elements are preserved in subsequent generations. This leads to an increase of intrapopulation genetic diversity. Thus, high genetic diversity was observed in populations such as A. altaicum located in the territory of the Kalbinskii Altai, whereas the minimum diversity was observed in the populations of the Leninororsk ecogeographic group. Distinctions between these populations were also identified depending on the areas of their distribution. Low-land and mid-mountain living environments are characterized by a great variety of shapes and plasticity. This work allowed us to obtain new genetic data on the structure of A. altaicum populations on the territory of the Kazakhstan Altai for the subsequent development of preservation and reproduction strategies for this relict species.

scholarly journals Protecting biodiversity in British Columbia: Recommendations for developing species at risk legislation

FACETS ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 136-160 ◽  
Author(s):  
Alana R. Westwood ◽  
Sarah P. Otto ◽  
Arne Mooers ◽  
Chris Darimont ◽  
Karen E. Hodges ◽  
...  
Keyword(s):  
At Risk ◽  
British Columbia ◽  
Endangered Species ◽  
Biological Diversity ◽  
Provincial Government ◽  
Individual Species ◽  
Species At Risk ◽  
Or Groups ◽  
Species At Risk Act ◽  
Species Declines

British Columbia has the greatest biological diversity of any province or territory in Canada. Yet increasing numbers of species in British Columbia are threatened with extinction. The current patchwork of provincial laws and regulations has not effectively prevented species declines. Recently, the Provincial Government has committed to enacting an endangered species law. Drawing upon our scientific and legal expertise, we offer recommendations for key features of endangered species legislation that build upon strengths and avoid weaknesses observed elsewhere. We recommend striking an independent Oversight Committee to provide recommendations about listing species, organize Recovery Teams, and monitor the efficacy of actions taken. Recovery Teams would evaluate and prioritize potential actions for individual species or groups of species that face common threats or live in a common area, based on best available evidence (including natural and social science and Indigenous Knowledge). Our recommendations focus on implementing an adaptive approach, with ongoing and transparent monitoring and reporting, to reduce delays between determining when a species is at risk and taking effective actions to save it. We urge lawmakers to include this strong evidentiary basis for species recovery as they tackle the scientific and socioeconomic challenges of building an effective species at risk Act.

scholarly journals Community Conservation

2020 ◽  
Author(s):  
Amritpal Singh Kaleka ◽  
Gagan Preet Kour Bali
Keyword(s):  
Endangered Species ◽  
Biological Diversity ◽  
Sustainable Use ◽  
Ground Level ◽  
Indigenous Communities ◽  
Local Communities ◽  
Conservation Strategies ◽  
Community Conservation ◽  
Indian Government ◽  
Non Profit

Floral and faunal diversity represents the health of an ecosystem. Increase in the number of endangered plants acts as an alarming sign of ecosystem’s imbalance. The ecological failure pose threat to our own health, thus by saving endangered species our own health is being saved. Government, non-profit international organizations, local communities and individuals are working together to protect and restore population levels. Biological Diversity Act (2002) for conservation of biodiversity is a landmark effort by Indian government as it provides mechanisms for knowledge, sustainable use of components of biological diversity and fair and equitable sharing of the benefits arising out of the use of biological resources. The various awareness campaigns have been conducted for local communities with regard to the conservation of endangered species. Both in-situ (on site) and ex-situ (off site) conservation strategies target critical habitats under continuous threat of extinction. Conservation programmes that centred mainly on the local masses which completely depend upon the environment including forests, lakes and wildlife for their needs truly showcase the leadership of local and indigenous communities in protecting biodiversity. The rights of local communities in decision making must be recognized and supported through clear laws and regulations. Sacred groves, a legacy of prehistoric traditions of nature conservation act as an ideal centre for biodiversity conservation. Besides providing vital ecosystem services to people, these are of immense ecological significance. Community conservation is the need of the hour in terms of conserving biodiversity at ground level.

scholarly journals Avian diversity in forest, agriculture and water stream habitats of Dehradun Valley, Uttarakhand, India

2021 ◽  
Vol 9 ◽  
Author(s):  
Kamal Joshi ◽  
Dinesh Bhatt ◽  
Ashish Arya
Keyword(s):  
Endangered Species ◽  
Future Study ◽  
Biological Diversity ◽  
Western Himalaya ◽  
Vulnerable Species ◽  
Avian Diversity ◽  
Water Stream ◽  
Egyptian Vulture ◽  
Ecological Values ◽  
Near Threatened

The Western Himalaya is recognised for its biological diversity and ecological values. An attempt was made to understand the avian diversity distribution in Forest, Agriculture and Water stream habitats of Dehradun (Western Himalaya) Uttarakhand. A total of two hundred and thirty one species belonging to 54 families were encountered during the survey. Out of these, one endangered species (Egyptian Vulture, Neophron percnopterus) and three near-threatened species Alexandrine Parakeet (Psittacula eupatria), Black-necked Stork (Ephippiorhynchus asiaticu) and River Lapwing (Vanellus duvaucelii) and one vulnerable species Woolly-necked Stork (Ciconia episcopus) were sighted. Three avian species, Mistle Thrush, Sulphur-bellied Warbler and White-rumped Munia. have been recorded as isolates in the study area. The presence of these species indicates the habitats extension in Dehradun District of Uttarakhand. The present study provides significant records in the study site and provides a baseline data for future study with reference to conservation in Dehradun Region.

Behavioural Approaches to Conservation in the Wild

1998 ◽  
Vol 4 (3) ◽  
pp. 273
Author(s):  
B. Van Elven
Keyword(s):  
Endangered Species ◽  
Northern Hemisphere ◽  
Captive Breeding ◽  
Biological Diversity ◽  
Ecosystem Restoration ◽  
Landscape Design ◽  
Animal Behaviour ◽  
Behavioural Research ◽  
In The Wild ◽  
Society Annual

Behavioural Approaches to Conservation in the Wild is based on a series of papers from a symposium entitled "Conservation and Behaviour in the Wild" held during the Animal Behaviour Society annual meetings in Lincoln, Nebraska in 1995. The book was compiled because the editors (and others) felt that both behavioural researchers and conservation biologists did not adequately recognize the important role that behavioural studies could play in conservation efforts. Traditionally, behavioural researchers have limited the conservation applications of their research to captive breeding and reintroduction programmes of endangered species, while conservation biologists have focussed on landscape design and ecosystem restoration without necessarily considering animal behaviour. The objectives of the book are twofold: to stimulate behavioural researchers to think about how their work can contribute to conservation of biological diversity, and to show conservation biologists the relevance of behavioural research in solving conservation problems. As expected given the location of the symposium and the high proportion of northern hemisphere contributors, most examples presented are from that region.

THE ANALYSIS OF LAW ON PROTECTION AND RATIONAL USE OF FAUNA

2021 ◽  
Author(s):  
Olim Narzullaev
Keyword(s):  
International Trade ◽  
Endangered Species ◽  
Biological Diversity ◽  
Wild Animals ◽  
Migratory Species ◽  
Free Living ◽  
International Importance ◽  
The Republic ◽  
Free Living Conditions ◽  
Animal World

This article reveals the issues of legal regulatin of the protectionand use of the animal world, as one of the types of biological resources defined inthe legislation of wild animals living in a state of natural freedom in water,atmosphere and soil, permanently or temporarily in the territory of the Republic ofUzbekistan, as well as animal world bred in semi-free living conditions or artificiallycreated for scientific or environmental purposes established by legislation on theprotection and use of wildlife, in addition, taking into account the narrowness andcontent of international legal acts “On Wetlands of International Importance, Mainlyas Habitats of Waterfowl”, “On International Trade in Endangered Species of WildFauna and Flora”, “On the Conservation of Migratory Species of Wild Animals”,“On Biological Diversity” based on the essence of the content of internationalinstruments, it is analyzed on the basis of the national legislation of Uzbekistan.

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