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Resource Documents: Birds (49 items)
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Avian mortalities from two wind farms at Kutch, Gujarat and Davangere, Karnataka, India
Author: Selvaraj, Ramesh; et al.
[abstract] Wind power is renewable and helps reduce greenhouse gas emission from the energy sector; however, it also has undesirable impacts on the environment. Studies from Europe and the USA report negative impact of wind farms on wildlife, especially on birds. India, the fourth largest producer of wind energy and also a mega biodiverse country has little information on this issue. Here, we report bird collisions from two wind farms: one at Kutch, Gujarat in western India and another from . . .
More »Evaluating anthropogenic landscape alterations as wildlife hazards, with wind farms as an example
Author: Law, Peter; and Fuller, Mark
[ABSTRACT] Anthropogenic alterations to landscape are indicators of potential compromise of that landscape’s ecology. We describe how alterations can be assessed as ‘hazards’ to wildlife through a sequence of three steps: diagnosing the means by which the hazard acts on individual organisms at risk; estimating the fitness cost of the hazard to those individuals and the rate at which that cost occurs; and translating that cost rate into a demographic cost by identifying the relevant demographically-closed population. We exploit the . . .
More »Quantifying the demographic cost of human-related mortality to a raptor population
Author: Hunt, W. Grainger; et al.
[Abstract] Raptors are exposed to a wide variety of human-related mortality agents, and yet population-level effects are rarely quantified. Doing so requires modeling vital rates in the context of species life-history, behavior, and population dynamics theory. In this paper, we explore the details of such an analysis by focusing on the demography of a resident, tree-nesting population of golden eagles (Aquila chrysaetos) in the vicinity of an extensive (142 km²) windfarm in California. During 1994–2000, we tracked the fates of >250 . . .
More »Wind farms affect the occurrence, abundance and population trends of small passerine birds: The case of the Dupont’s lark
Author: Gómez-Catasús, Julia; Garza, Vicente; and Traba, Juan
Abstract 1. The assessment of the effects of wind farms on bird populations is commonly based on collision fatality records. This could undervalue the effect of wind farms on small-sized birds. We evaluate the effect of wind turbines on occurrence, abundance and population trends of a threatened small passerine species, the Dupont’s lark Chersophilus duponti. To our knowledge, this is one of the first studies addressing the effect of wind farms on population trends using time-series data from multiple wind . . .
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