TY  - JOUR
U1  - Wissenschaftlicher Artikel
A1  - Deppe, Franziska
A1  - Breuer, Emily
A1  - Hofmann, Inka
A1  - Koch, Nicla
A1  - Näckel, Lara
A1  - Nowak, Josua
A1  - Plänker, Philip Carlo
A1  - Schmitz, Anna‐Lena
A1  - Schroeder, Lisa
A1  - Spitzlei, Anna
A1  - Vetter, Paula
A1  - Wassong, Lukas
A1  - Weich, Stefanie
A1  - Weingart, Michael
A1  - Wittkamp, Luisa
A1  - Yilmazer, Mine
A1  - Fischer, Klaus
T1  - Landscape heterogeneity affects developmental and dispersal‐related traits of a butterfly in agricultural landscapes
JF  - Ecological Applications
N2  - The loss and fragmentation of natural habitats due to the intensification of agricultural land use have detrimental impacts on the biodiversity of arthropods. The reduction of natural habitats results in a decreased availability of essential resources, which may select for rapid development and phenotypes enhancing dispersal ability. We here compared replicated populations of the butterfly Coenonympha pamphilus in field‐caught females and their laboratory‐reared offspring across two landscape types: highly fragmented and intensified “modern” and less fragmented “traditional” agricultural landscapes. We also examined the effects of food stress and landscape parameters representing compositional and configurational landscape heterogeneity on intraspecific trait variation at different spatial scales. The differences between the two landscape types in butterfly traits were nonsignificant throughout, but both field‐caught females and their offspring exhibited various responses to the measured landscape parameters. In particular, landscapes with (1) high heterogeneity of habitat patches (i.e., relatively smaller grassland patches with high boundary length), (2) higher proportion of non‐crop habitats (i.e., grassland, forests, and woodland), and (3) lower proportion of crop fields seemed to select for phenotypes enhancing dispersal ability. Flight propensity of male offspring was increased under food stress, indicating plastic responses to resource scarcity. In conclusion, our findings suggest that the compositional and configurational landscape heterogeneity, namely parameters indicative of agricultural intensification, select for enhanced dispersal in C. pamphilus . As higher investment in dispersal often comes at a cost to reproduction, such trait shifts may reduce population viability, which may have important implications for insect declines in agricultural landscapes.
AB  - The loss and fragmentation of natural habitats due to the intensification of agricultural land use have detrimental impacts on the biodiversity of arthropods. The reduction of natural habitats results in a decreased availability of essential resources, which may select for rapid development and phenotypes enhancing dispersal ability. We here compared replicated populations of the butterfly Coenonympha pamphilus in field‐caught females and their laboratory‐reared offspring across two landscape types: highly fragmented and intensified “modern” and less fragmented “traditional” agricultural landscapes. We also examined the effects of food stress and landscape parameters representing compositional and configurational landscape heterogeneity on intraspecific trait variation at different spatial scales. The differences between the two landscape types in butterfly traits were nonsignificant throughout, but both field‐caught females and their offspring exhibited various responses to the measured landscape parameters. In particular, landscapes with (1) high heterogeneity of habitat patches (i.e., relatively smaller grassland patches with high boundary length), (2) higher proportion of non‐crop habitats (i.e., grassland, forests, and woodland), and (3) lower proportion of crop fields seemed to select for phenotypes enhancing dispersal ability. Flight propensity of male offspring was increased under food stress, indicating plastic responses to resource scarcity. In conclusion, our findings suggest that the compositional and configurational landscape heterogeneity, namely parameters indicative of agricultural intensification, select for enhanced dispersal in C. pamphilus . As higher investment in dispersal often comes at a cost to reproduction, such trait shifts may reduce population viability, which may have important implications for insect declines in agricultural landscapes.
KW  - agricultural intensification
KW  - food stress
KW  - habitat fragmentation
KW  - insect declines
KW  - landscape configuration
KW  - life history traits
KW  - population responses
KW  - Coenonympha pamphilus
Y1  - 2026
SN  - 1051-0761
SS  - 1051-0761
SN  - 1939-5582
SS  - 1939-5582
UN  - https://nbn-resolving.org/urn:nbn:de:hbz:kob7-26933
U6  - https://doi.org/10.1002/eap.70209
DO  - https://doi.org/10.1002/eap.70209
VL  - 36
IS  - 2
AR  - e70209
S2  - e70209
SP  - 20
PB  - Wiley
ER  -