FN Archimer Export Format
PT J
TI Climatic microrefugia under anthropogenic climate change: implications for species redistribution
BT 
AF LENOIR, Jonathan
   HATTAB, Tarek
   PIERRE, Guillaume
AS 1:1;2:1;3:2;
FF 1:;2:;3:;
C1 Univ Picardie Jules Verne, FRE 3498 CNRS UPJV, EDYSAN, Unit Rech Ecol & Dynam Syst Anthropis, 1 rue Louvels, F-80037 Amiens 1, France.
   Univ Reims, Grp Etude Geomat & Environm Nat Anthrop & Archeol, GEGENA2 EA 3795, 57 Rue Pierre Taittinger, FR-51096 Reims, France.
C2 UNIV PICARDIE JULES VERNE, FRANCE
   UNIV REIMS, FRANCE
IN DOAJ
IF 4.52
TC 221
UR https://archimer.ifremer.fr/doc/00398/50982/51746.pdf
LA English
DT Article
AB The role of modern climatic microrefugia is a neglected aspect in the study of biotic responses to anthropogenic climate change. Current projections of species redistribution at continental extent are based on climatic grids of coarse ( 1 km) resolutions that fail to capture spatiotemporal dynamics associated with climatic microrefugia. Here, we review recent methods to model the climatic component of potential microrefugia and highlight research gaps in accounting for the buffering capacity due to biophysical processes operating at very fine (< 1 m) resolutions (e.g. canopy cover) and the associated microclimatic stability over time (i.e. decoupling). To overcome this challenge, we propose a spatially hierarchical downscaling framework combining a free-air temperature grid at 1 km resolution, a digital elevation model at 25 m resolution and small-footprint light detection-and-ranging (LiDAR) data at 50 cm resolution with knowledge from the literature to mechanistically model sub-canopy temperatures and account for microclimatic decoupling. We applied this framework on a virtual sub-canopy species and simulated the impact of a warming scenario on its potential distribution. Modelling sub-canopy temperatures at 50 cm resolution and accounting for microclimatic stability over time enlarges the range of temperature conditions towards the cold end of the gradient, mitigates regional temperature changes and decreases extirpation risks. Incorporating these spatiotemporal dynamics into species redistribution models, being correlative, mechanistic or hybrid, will increase the probability of local persistence, which has important consequences in the understanding of the capacity of species to adapt. We finally provide a synthesis on additional ways that the field could move towards effectively considering potential climatic microrefugia for species redistribution. 
PY 2017
PD FEB
SO Ecography
SN 0906-7590
PU Wiley
VL 40
IS 2
UT 000394668800007
BP 253
EP 266
DI 10.1111/ecog.02788
ID 50982
ER

EF