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| McCall, Sarah C; Australian Research Centre for Urban Ecology; School of Botany, University of Melbourne;; McCarthy, Michael A; School of Botany, University of Melbourne; mamcca@unimelb.edu.au; van der Ree, Rodney; Australian Research Centre for Urban Ecology; School of Botany, University of Melbourne; rvdr@unimelb.edu.au; Harper, Michael J; Australian Research Centre for Urban Ecology; Department of Sustainability and Environment, Victoria;; Cesarini, Silvana; School of Biological Scienes, Monash University;; Soanes, Kylie; Australian Research Centre for Urban Ecology;. |
| Roads and traffic are prominent components of most landscapes throughout the world, and their negative effects on the natural environment can extend for hundreds or thousands of meters beyond the road. These effects include mortality of wildlife due to collisions with vehicles, pollution of soil and air, modification of wildlife behavior in response to noise, creation of barriers to wildlife movement, and establishment of dispersal conduits for some plant and animal species. In southeast Australia, much of the remaining habitat for the squirrel glider, Petaurus norfolcensis, is located in narrow strips of Eucalyptus woodland that is adjacent to roads and streams, as well as in small patches of woodland vegetation that is farther from roads. We evaluated... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Australia; Emigration; Mortality; Population persistence; Road ecology; Squirrel glider; Survival. |
| Ano: 2010 |
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| Tischendorf, Lutz; ELUTIS Modelling and Consulting Inc.; lutz.tischendorf@gmx.net; Grez, Audrey; Universidad de Chile; agrez@uchile.cl; Fahrig, Lenore; Carleton University; lfahrig@ccs.carleton.ca. |
| We conducted a factorial simulation experiment to analyze the relative importance of movement pattern, boundary-crossing probability, and mortality in habitat and matrix on population density, and its dependency on habitat fragmentation, as well as inter-patch distance. We also examined how the initial response of a species to a fragmentation event may affect our observations of population density in post-fragmentation experiments. We found that the boundary-crossing probability from habitat to matrix, which partly determines the emigration rate, is the most important determinant for population density within habitat patches. The probability of crossing a boundary from matrix to habitat had a weaker, but positive, effect on population density. Movement... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Boundary crossing; Emigration; Habitat fragmentation; Immigration; Modeling; Movement; Population density; Simulation; Time scale. |
| Ano: 2005 |
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| Elsner, Benjamin. |
| This paper studies the impact of a large emigration wave on real wages in the source country. Following EU enlargement in 2004, a large share of the workforce of the Central and Eastern Europe emigrated to Western Europe. Using data from Lithuania for the calibration of a factor demand model I show that emigration had a significant short-run impact on real wages in the source country. In particular, emigration led to a change in the wage distribution between young and old workers. The wages of young workers increased by 6%, whereas the wages of old workers decreased by around 1%. On the contrary, I find no effect on the wage distribution between workers of different education levels. |
| Tipo: Working Paper |
Palavras-chave: Emigration; EU Enlargement; European Integration; Wage Distribution; Labor and Human Capital; F22; J31; O15; R23. |
| Ano: 2011 |
URL: http://purl.umn.edu/119098 |
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