Results 91 to 100 of about 121,841 (210)

RAPD ANALYSIS OF GENETIC DIVERSITY IN Thuja koraiensis Nakai POPULATION [PDF]

open access: yesRevista Árvore
Thuja koraiensis Nakai belongs to the Cupressaceae family, which is an evergreen tree species celebrated for its durable wood. The branches, leaves, and seeds of the plant can be utilized as medicinal components, exhibiting properties such as hemostasis ...
Jinling Wang   +6 more
doaj   +1 more source

Conservation of the critically endangered frog Telmatobufo bullocki in fragmented temperate forests of Chile : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Conservation Biology at Massey University, Albany, New Zealand [PDF]

open access: yes, 2015
Amphibians are currently facing several threats and are suffering severe population declines and extinction worldwide. Telmatobufo bullocki (Anura: Calyptocephalellidae) is one of the rarest and most endangered amphibian species in Chile's temperate ...
Moreno-Puig, Virginia
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Herbicide impacts on exotic grasses and a population of the critically endangered herb "Calystegia affinis" (Convolvulaceae) on Lord Howe Island [PDF]

open access: yes, 2013
Introduced perennial grasses are capable of altering the habitat of native species, causing reductions in population size and vigour, and potentially affecting life-history processes such as survival, pollination and seedling recruitment. We examined the
Auld, Tony D.   +5 more
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Pollinators In Peril: A Systematic Status Review of North American and Hawaiian Native Bees [PDF]

open access: yes, 2017
While the decline of European honeybees in the United States and beyond has been well publicized in recent years, the more than 4,000 species of native bees in North America and Hawaii have been much less documented. Although these native bees are not as
Kelsey Kopec, Lori Ann Burd
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Leiocephalus onaneyi [PDF]

open access: yes, 2017
Number of pages: 7Geological SciencesIntegrative ...
Garrido, Orlando H.   +2 more
core   +1 more source

Nutritional Composition of Forage Available to the Northern Hairy‐Nosed Wombat

open access: yesEcology and Evolution
Access to adequate nutrition supports an animal's chance of survival and reproduction; thus, it is particularly important for threatened species. The nutritional quality of forage available to the critically endangered northern hairy‐nosed wombat ...
Fiona F. Casey   +2 more
doaj   +1 more source

Genetic support to uplist an African cheetah subspecies, Acinonyx jubatus soemmeringii, imperiled by illegal trade

open access: yesConservation Science and Practice
There has been a drastic decline in the number of cheetahs in the past century. Illegal pet trade poses a critical threat to the survival of the species and demands more attention.
Anne Schmidt‐Küntzel   +7 more
doaj   +1 more source

Genomic insights into the critically endangered King Island scrubtit

open access: yesJournal of Heredity
Abstract Small, fragmented, or isolated populations are at risk of population decline due to fitness costs associated with inbreeding and genetic drift. The King Island scrubtit Acanthornis magna greeniana is a critically endangered subspecies of the nominate Tasmanian scrubtit A. m.
Ross Crates   +10 more
openaire   +2 more sources

Impact of climate, land use and disturbances on the population structure in natural stands and regeneration patterns of Celtis toka in Burkina Faso, West Africa

open access: yesGlobal Ecology and Conservation
Celtis toka is a multipurpose wild mystic tree of Burkina Faso with an unknown population dynamic stability. The study was conducted to assess the impact of climate, land use and disturbances on the natural population of the species.
Zaïnabou Dabré   +6 more
doaj   +1 more source

How could a natural catastrophe impact the ecology of a species? The Nicobar megapode and tsunami [PDF]

open access: yes, 2008
This study on the impact of the 2004 tsunami on the Nicobar megapode Megapodius nicobariensis, endemic coastal living bird species in the Nicobar group of islands showed a significant decline (nearly 70%) in the number of individuals when compared to ...
Sivakumar Kuppusamy
core   +1 more source

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