Context matters: the landscape matrix determines the population genetic structure of temperate forest herbs across Europe - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Landscape Ecology Année : 2022

Context matters: the landscape matrix determines the population genetic structure of temperate forest herbs across Europe

, , , , , , , , , , (1) , , , , , , , ,
1
Tobias Naaf
Jannis Till Feigs
  • Fonction : Auteur
Siyu Huang
  • Fonction : Auteur
Jörg Brunet
Sara Cousins
Guillaume Decocq
Pieter de Frenne
Martin Diekmann
Sanne Govaert
Per-Ola Hedwall
Jaan Liira
Camille Meeussen
Jan Plue
Pieter Vangansbeke
Thomas Vanneste
Kris Verheyen
Stephanie Holzhauer
  • Fonction : Auteur
Katja Kramp
  • Fonction : Auteur

Résumé

Abstract Context Plant populations in agricultural landscapes are mostly fragmented and their functional connectivity often depends on seed and pollen dispersal by animals. However, little is known about how the interactions of seed and pollen dispersers with the agricultural matrix translate into gene flow among plant populations. Objectives We aimed to identify effects of the landscape structure on the genetic diversity within, and the genetic differentiation among, spatially isolated populations of three temperate forest herbs. We asked, whether different arable crops have different effects, and whether the orientation of linear landscape elements relative to the gene dispersal direction matters. Methods We analysed the species’ population genetic structures in seven agricultural landscapes across temperate Europe using microsatellite markers. These were modelled as a function of landscape composition and configuration, which we quantified in buffer zones around, and in rectangular landscape strips between, plant populations. Results Landscape effects were diverse and often contrasting between species, reflecting their association with different pollen- or seed dispersal vectors. Differentiating crop types rather than lumping them together yielded higher proportions of explained variation. Some linear landscape elements had both a channelling and hampering effect on gene flow, depending on their orientation. Conclusions Landscape structure is a more important determinant of the species’ population genetic structure than habitat loss and fragmentation per se. Landscape planning with the aim to enhance the functional connectivity among spatially isolated plant populations should consider that even species of the same ecological guild might show distinct responses to the landscape structure.
Fichier sous embargo
Fichier sous embargo
0 3 28
Année Mois Jours
Avant la publication

Dates et versions

hal-03667398 , version 1 (04-10-2022)

Identifiants

Citer

Tobias Naaf, Jannis Till Feigs, Siyu Huang, Jörg Brunet, Sara Cousins, et al.. Context matters: the landscape matrix determines the population genetic structure of temperate forest herbs across Europe. Landscape Ecology, 2022, 37 (5), pp.1365-1384. ⟨10.1007/s10980-021-01376-7⟩. ⟨hal-03667398⟩
32 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More