Results 31 to 40 of about 22,652,530 (299)

Migration as a means of population control [PDF]

open access: yes, 1970
For more about the East-West Center, see http://www.eastwestcenter.org/That it makes a difference to ultimate population whether out-migrants are of fertile ages or not is well known.
Keyfitz, Nathan   +1 more
core   +1 more source

The status of grey seals in Britain

open access: yesNAMMCO Scientific Publications, 2013
Grey seal pup production in Scotland was estimated through annual aerial surveys of the main grey seal breeding colonies. Between 3 and 7 counts of pups were obtained for each colony at intervals through the course of the breeding season.
C D Duck, D Thompson
doaj   +1 more source

Vitamin A supplementation and nutritional status among children 6–36 months in Northern Ghana

open access: yesAcademia Nutrition and Dietetics
Background: Vitamin A deficiency impairs immune function, growth, and child survival. We investigated the association between Vitamin A supplementation (VAS) intake and nutritional status among children aged 6–36 months and identified ...
Esmond W. Nonterah   +7 more
doaj   +1 more source

Status of grey seals along mainland Europe from the Southwestern Baltic to France

open access: yesNAMMCO Scientific Publications, 2007
The grey seal was a common species along mainland Europe during the Stone Age (8,000-5,500 BC). Along the North Sea coast populations started to decline substantially during the 11th century as a result of excessive hunting. The last breeding populations
Tero Härkönen   +6 more
doaj   +1 more source

Steppe Eagle in the Republic of Kalmykia (Russia): Results of the 2021 Survey

open access: yesПернатые хищники и их охрана, 2021
The article presents the results of the Steppe Eagle (Aquila nipalensis) study in the Republic of Kalmykia. 135 breeding territories of eagles were examined and 155 birds were observed during summer registrations and counts.
Anton Aleksandrovich Abushin   +1 more
doaj   +1 more source

Status of sexual and reproductive health and rights in Zambia: Violence against women and HIV/AIDS prevention and treatment [PDF]

open access: yes, 2017
In 1994, the International Conference on Population and Development affirmed that sexual and reproductive health and rights (SRHR) are human rights. The Government of the Republic of Zambia has fully committed to fulfilling the SRHR of all people by ...
Population Council
core   +1 more source

A note on harbour seal (Phoca vitulina) distribution and abundance in France and Belgium

open access: yesNAMMCO Scientific Publications, 2010
The most southern European colonies of harbour seals (Phoca vitulina) are located in France, in three areas: Baie du Mont Saint Michel, Baie des Veys and Baie de Somme.
Sami Hassani   +7 more
doaj   +1 more source

The assessment of the current status of Gentiana lutea L. populations of the Ukrainian Carpathians: Ecological and genetic approaches

open access: yesFolia Oecologica, 2022
Based on the analysis of the genetic polymorphisms (RGAP- and CDDP-PCR) among populations and comparison of these results with ecological characteristics (density, area, spatial and vitality structure, age, ability of renewal and self-maintenance), the ...
Prokopiak Mariana   +4 more
doaj   +1 more source

Updated breeding distribution and population status of Jankowski’s Bunting Emberiza jankowskii in China

open access: yes, 2017
Since 2010, Jankowski’s Bunting Emberiza jankowskii has been listed as ‘Endangered’ on the IUCN Red List of Threatened Species. However, because no comprehensive surveys had been conducted, it was not known whether undiscovered populations existed ...
Zheng Han   +8 more
semanticscholar   +1 more source

Population Status of Primates in the Atlantic Forest of Argentina

open access: yesInternational journal of primatology, 2015
To guide future conservation actions and management decisions, it is crucial to assess the population status and identify the environmental or anthropogenic variables that affect species’ abundance and persistence.
I. Agostini   +3 more
semanticscholar   +1 more source

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