Supplementary material from "Migration in the Anthropocene: how collective navigation, environmental system and taxonomy shape the vulnerability of migratory species"
Posted on 2018-02-08 - 10:25
Recent increases in human disturbance pose significant threats to migratory species using collective movement strategies. Key threats to migrants may differ depending on behavioural traits (e.g. collective navigation), taxonomy and the environmental system (i.e. freshwater, marine or terrestrial) associated with migration. We quantitatively assess how collective navigation, taxonomic membership and environmental system impact species' vulnerability by (i) evaluating population change in migratory and non-migratory bird, mammal and fish species using the Living Planet Database (LPD), (ii) analysing the role of collective navigation and environmental system on migrant extinction risk using International Union for Conservation of Nature (IUCN) classifications and (iii) compiling literature on geographical range change of migratory species. Likelihood of population decrease differed by taxonomic group: migratory birds were more likely to experience annual declines than non-migrants, while mammals displayed the opposite pattern. Within migratory species in IUCN, we observed that collective navigation and environmental system were important predictors of extinction risk for fishes and birds, but not for mammals, which had overall higher extinction risk than other taxa. We found high phylogenetic relatedness among collectively navigating species, which could have obscured its importance in determining extinction risk. Overall, outputs from these analyses can help guide strategic interventions to conserve the most vulnerable migrations.This article is part of the theme issue ‘Collective movement in ecology: from emerging technologies to conservation and management'.
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Hardesty-Moore, Molly; Deinet, Stefanie; Freeman, Robin; Titcomb, Georgia C.; Dillon, Erin M.; Stears, Keenan; et al. (2018). Supplementary material from "Migration in the Anthropocene: how collective navigation, environmental system and taxonomy shape the vulnerability of migratory species". The Royal Society. Collection. https://doi.org/10.6084/m9.figshare.c.3999567.v1
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AUTHORS (13)
MH
Molly Hardesty-Moore
SD
Stefanie Deinet
RF
Robin Freeman
GT
Georgia C. Titcomb
ED
Erin M. Dillon
KS
Keenan Stears
MK
Maggie Klope
AB
An Bui
DO
Devyn Orr
HS
Hillary S. Young
AM
Ana Miller-ter Kuile
LH
Lacey F. Hughey
DJ
Douglas J. McCauley