نتایج جستجو برای: indigenous species

تعداد نتایج: 576014  

Journal: :Proceedings. Biological sciences 2007
Steven L Chown Sarette Slabber Melodie McGeouch Charlene Janion Hans Petter Leinaas

Synergies between global change and biological invasion have been identified as a major potential threat to global biodiversity and human welfare. The global change-type drought characteristic of many temperate terrestrial ecosystems is especially significant because it will apparently favour invasive over indigenous species, adding to the burden of conservation and compromising ecosystem servi...

2015
Justus P. Deikumah Vida Asieduwaa Konadu Richard Kwafo

BACKGROUND Studies on indigenous knowledge of fauna particular birds and its potential use in biodiversity conservation and management are rare globally. Characteristics used in creating indigenous bird names in many Ghanaian languages are undocumented. The main aim of this study is to answer the question "whether indigenous bird naming systems by the Akan tribes in Ghana follow scientific nome...

2008
D. O. Bergin David Bergin

An indigenous species coastal planting trial was established at Ohiwa Spit, eastern Bay of Plenty in mid-2005 by the the Ohiwa Beach Coast Care group, Whakatohea Trust, Environment Bay of Plenty and Opotiki District Council. The aim of the trial was to evaluate the performance of a range of local indigenous ground cover and shrub species planted within three demarcated zones on a relatively sta...

1990
Janice M Lord

The effect of protection from sheep grazing on indigenous plant species in relatively mesic, strongly modified Poa cita grassland, was examined using paired grazed and ungrazed sites. Ungrazed sites, fenced at times ranging from four to more than 24 years ago, had fewer species, lower indigenous cover and lower tussock density than adjacent grazed sites. The dominance of adventive species, part...

2016
Ripu M Kunwar Kedar Baral Prashant Paudel Ram P Acharya Khum B Thapa-Magar Mary Cameron Rainer W Bussmann

Indigenous plant use-systems have evolved under, and constantly adapted to human and non-human impacts. In the last decades however, increasing socioeconomic and cultural transformations, including land-use change, outmigration, globalized markets, the introduction of new species, and climate change have led to a decreasing availability of indigenous resources, and are ultimately leading to a r...

2003
Colin A. Chapman Lauren J. Chapman

Exotic tree plantations have been considered as a management strategy for the rehabilitation of indigenous tree communities in situations that require human intervention to assure forest ecosystem rehabilitation. This study evaluated the value of pine Pinus caribaea and Pinus patula and cypress Cupressus lusitanica plantations as a means o f permitting indigenous trees to become established on ...

2011
Evelyn Dröge Parinaz Maghferat Cornelius Puschmann Julia Verbina Katrin Weller

In the following study, we analyze the usage of Twitter during four scientific conferences with focus on humanities and computer science. Automated analyses of tweets, retweets and @-messages were performed as well as an intellectual analysis of the tweets’ contents.

Journal: :Paediatrics & child health 2014
Jill M Starkes Lola T Baydala

Canadian and international guidelines address the ethical conduct of health research in general and the issues affecting Indigenous populations in particular. This statement summarizes, for clinicians and researchers, relevant ethical and practical considerations for health research involving Aboriginal children and youth. While not intended to duplicate findings arising from lengthy collaborat...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
John Lindo Alessandro Achilli Ugo A Perego David Archer Cristina Valdiosera Barbara Petzelt Joycelynn Mitchell Rosita Worl E James Dixon Terence E Fifield Morten Rasmussen Eske Willerslev Jerome S Cybulski Brian M Kemp Michael DeGiorgio Ripan S Malhi

Recent genomic studies of both ancient and modern indigenous people of the Americas have shed light on the demographic processes involved during the first peopling. The Pacific Northwest Coast proves an intriguing focus for these studies because of its association with coastal migration models and genetic ancestral patterns that are difficult to reconcile with modern DNA alone. Here, we report ...

2015
Francis J. O’Donahoo Kirstin E. Ross Paul B. Tchounwou

Research within Indigenous communities has been criticised for lacking community engagement, for being exploitative, and for poorly explaining the processes of research. To address these concerns, and to ensure 'best practice', Jamieson, et al. (2012) recently published a summary of principles outlined by the NHMRC (2003) in "one short, accessible document". Here we expand on Jamieson et al.'s ...

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