Results 21 to 30 of about 2,505,274 (300)

The population change in Serbia in the post-Yugoslav period (1991-2017): Significant demographic aspects [PDF]

open access: yesSociološki Pregled, 2019
The aim of the paper is to consider the population trends in Serbia and their components over the last three decades. It is a period of profound political, economic and social transformations.
Penev Goran D.   +1 more
doaj  

Declines of Aerial Insectivores in North America Follow a Geographic Gradient

open access: yesAvian Conservation and Ecology, 2010
North American birds that feed on aerial insects are experiencing widespread population declines. An analysis of the North American Breeding Bird Survey trend estimates for 1966 to 2006 suggests that declines in this guild are significantly stronger than
Silke Nebel   +3 more
doaj   +1 more source

Rural Depopulation in Greece: Trends, Processes, and Interpretations

open access: yesGeographies, 2023
Depopulation is caused by low fertility rates and out-migration, and it applies to countries, regions and smaller areas. Rural depopulation is defined as a sharp population decline that falls well below an adequate population size and indicates that an ...
Apostolos G. Papadopoulos, Pavlos Baltas
doaj   +1 more source

Narcissus dubius, Narcisse Douteux [PDF]

open access: yes, 2018
This species is endemic to southern France and eastern Spain. It is assessed as Least Concern because it has a widespread distribution, occurs in several protected areas throughout its range and its population is not expected to significantly decline in ...
Carapeto, André   +5 more
core   +1 more source

Local Decline and Populism

open access: yesSSRN Electronic Journal
Support for right-wing populist parties is characterised by considerable regional heterogeneity and especially concentrated in regions that have experienced economic decline. It remains unclear, however, whether the spatial externalities of local decline, including homelessness and crime, boost support for populist parties, even among those not ...
Thiemo Fetzer   +2 more
openaire   +3 more sources

Over-summering as a risk effect reducing population growth in a long-distance migrant shorebird

open access: yesAvian Conservation and Ecology
That anti-predator behavior can have large demographic consequences (called risk effects) is theoretically well-founded and experimentally supported. Here we investigate whether this mechanism could be contributing to population declines reported over ...
Ronald C Ydenberg, Lia Hemerik
doaj   +1 more source

Both external and internal factors as an explanation of depopulation of cities on the area of Poland

open access: yesEnvironmental & Socio-economic Studies, 2014
The aim of this paper is an attempt of explanation basic factors of depopulation in case of cities in Poland in the 20st and in the beginning of 21st century. Author takes into consideration only large urban centers with population more than 50 thousands
Kantor-Pietraga Iwona
doaj   +1 more source

The Hollowing Process of Rural Communities in China: Considering the Regional Characteristic

open access: yesLand, 2021
This study examined the hollowing process of rural communities, which is caused by migration, and explored its influence factors based on Hierarchical Linear Model (HLM) analysis in an attempt to explore effect of regional characteristic.
Ying Liu, Liqiong Shu, Li Peng
doaj   +1 more source

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Spatial and Temporal Dynamics of Birch Populations in Residential Areas of St. Petersburg, Russia, from 2002 to 2022

open access: yesEarth
Trees play a vital role in urban landscapes, yet long-term dynamics in tree populations across different levels of urbanization remain poorly understood.
Mikhail V. Kozlov   +2 more
doaj   +1 more source

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