Les déplacements des espèces volantes : vers la mise en œuvre d’une « Trame aérienne » dans le cadre de la politique Trame verte et bleue ?

Romain SORDELLO, Yorick REYJOL, Jennifer AMSALLEM, Yves BAS, Lucille BILLON, Leyli BORNER, Jacques COMOLET-TIRMAN, Aurélien DALOZ, Anne-Laure DUGUÉ, Éric GUINARD, Jean-François JULIEN, Aurélie LACOEUILHE, Antoine LOMBARD, Julie MARMET, Benoît MARS, Geoffroy MARX, Catherine MÉNARD, Fabien PAQUIER, Nathalie SCHWEIGERT, Chloé THIERRY, Sylvie VANPEENE, Vincent VIGNON & Jean-Philippe SIBLET

fr Naturae 2022 (9) - Pages 169-192

Published on 08 June 2022

The movement of flying species: towards the implementation of an «aerial infrastructure» in the context of the green and blue Infrastructure policies?

While many animals use the airspace, human activities also occupy this space significantly. In this article we consider four types of obstacles – aircrafts, buildings, wind turbines and power lines – to illustrate their impacts on birds, bats and insects. Litterature shows that these airborne obstacles cause mortality through collisions, electrocutions and barotrauma, in addition to generating disturbance and habitat loss/fragmentation. However, the quantification of these problems remains highly variable depending on the obstacles and species, and is generally poorly known in France (except for aircraft and, to a lesser extent, wind turbines). We then present various management measures that are already being implemented or tested to reduce these impacts. However, here again, we stress that their deployment varies greatly depending on the obstacles. For example, bird hazard management at airports benefits from several decades of experience while the impact of buildings is hardly considered. Most of the time these measures are sector-based and remain more or less effective to date. We therefore underline the interest of a global approach based on green infrastructures concepts, in order to explore these issues and propose several suggestions to implement an aerial ecological network.

Ecological network, mortality, active flight,  chiropterans, avifauna.
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