Population structure and movements of a threatened butterfly (Lopinga achine) in a fragmented landscape in Sweden

Bergman, Karl‐Olof; Landin, Jan

doi:10.1016/s0006-3207(02)00104-0

Cited by 62 publications

(66 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Higher mobility of females has been reported in many insects [5,[30][31][32] and seems related to oviposition behaviour. Laying eggs in different fragments of a habitat patch or in different patches helps to maximise offspring survival, and thus female fitness, through risk spreading [2].…”

Section: Discussionmentioning

confidence: 65%

Movements and flight morphology in the endangered Large Blue butterflies

et al. 2013

View full text Add to dashboard Cite

Movements and flight morphology of the endangered Large Blue butterflies Phengaris teleius and P. nausithous in southern Poland were studied with mark-release-recapture surveys and GIS analyses. Most individuals moved relatively small distances (<40 metres) within their habitat patches. Distances covered by both species were positively related to season progression and wing length, and negatively related to body mass. P. teleius movement distances slightly exceeded those of P. nausithous. In addition, females moved longer distances than males, although the difference was significant only in P. teleius. Morphological traits appeared to be good indicators of the inter-specific and inter-sexual differences in mobility. While P. teleius individuals were heavier than P. nausithous ones, they had considerably longer wings, which may explain longer movements in the former species. Similarly, females were heavier than males in both species, but they invested more in wing size, which is likely to compensate for the negative impact of body mass on movement distances. Our results indicate that combination of GIS analysis of movement distances recorded with mark-release-recapture methods and morphometric measurements taken in field during non-lethal handling of captured individuals proved useful for studying the mobility potential of the endangered insect species.

show abstract

Section: Discussionmentioning

confidence: 65%

Movements and flight morphology in the endangered Large Blue butterflies

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Dispersal may be sex-biased as predicted by several theoretical models (Perrin and Mazalov 2000;Gros et al 2008) and often confirmed empirically (Bergman and Landin 2002;Nowicki and Vrabec 2011;Schultz et al 2012). If females are more mobile their dispersal allows the effective colonisation of empty patches (Bergman and Landin 2002) while dispersal restricted to males does not.…”

Section: Introductionmentioning

confidence: 79%

“…If females are more mobile their dispersal allows the effective colonisation of empty patches (Bergman and Landin 2002) while dispersal restricted to males does not. Male dispersal, although often ignored, may also crucially contribute to gene flow among local populations (Piaggio et al 2009;Solmsen et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Different flight behaviour of the endangered scarce large blue butterfly Phengaris teleius (Lepidoptera: Lycaenidae) within and outside its habitat patches

et al. 2013

View full text Add to dashboard Cite

Understanding individual movements in heterogeneous environments is central to predicting how landscape changes affect animal populations. An important but poorly understood phenomenon is behavioural response to habitat boundaries and the way animals cross inhospitable matrix surrounding habitat patches. Here, we analyze movement decisions, flight behaviour, and activity of the endangered scarce large blue Phengaris (Maculinea) teleius, focusing on the differences among the patterns observed in patch interior, at patch boundaries and within matrix. The probability of crossing an external patch boundary, regardless of the land use in the adjacent area, was considerably lower than crossing a 'control line' within patch interior. Movement distances, flight durations and net squared displacement were largest in matrix, while similarly smaller at patch boundaries and in patch interior. The distribution of angles between successive movements was clearly clustered around 0°(indicating flight in a straight line) in matrix and at patch boundaries, but not in patch interior. There were no differences in time spent on foraging, resting and ovipositing between patch interior and boundaries, but the first two activities rarely, and oviposition never, happened in matrix. Our results suggest that although P. teleius adults do not avoid using the resources located in the boundaries of habitat patches, they often return to the interior of the patches when crossing their boundaries. However, having entered the matrix the butterflies perform relatively long and straight flights. The estimated probability of emigration and net squared distance implies that the dispersal between local populations is common in this species in the studied area.

show abstract

“…While females are often a more mobile sex in butterflies (e.g. Bergman and Landin 2002;Auckland et al 2004;Vrabec 2011, but see Junker andSchmitt 2010), we observed the opposite pattern in the dryad. This is a further constraint for the successful conservation of this species because only mated females are able to ensure colonisations of vacant habitat patches, which is a key process for metapopulation persistence.…”

Section: Discussionmentioning

confidence: 46%

Within-patch mobility and flight morphology reflect resource use and dispersal potential in the dryad butterfly Minois dryas

et al. 2013

View full text Add to dashboard Cite

Knowledge of mobility is essential for understanding animal habitat use and dispersal potential, especially in the case of species occurring in fragmented habitats. We compared within-patch movement distances, turning angles, resting times, and flight-related morphological traits in the locally endangered butterfly, the dryad (Minois dryas), between its old populations occupying xerothermic grasslands and newly established ones in wet meadows. We expected that the latter group should be more mobile. Individuals living in both habitat types did not differ in their body mass and size, but those from xerothermic grasslands had wider thoraxes and longer wings, thus lower wing loading index (defined as body mass to wing length ratio). The majority of movements were short and did not exceed 10 m. Movement distances were significantly larger in males. However, there was no direct effect of habitat type on movement distances. Our results suggest that the dryads from xerothermic grasslands have better flight capabilities, whereas those from wet meadows are likely to invest more in reproduction. This implies that mobility is shaped by resource availability rather than by recent evolutionary history. Lower female mobility may have negative implications for the metapopulation persistence because only mated females are able to (re)colonise vacant habitat patches efficiently. Conservation efforts should thus be focused on maintaining large habitat patches that prevent stochastic local extinctions. Furthermore, the recommendation of promoting the exchange of individuals among patches through improving matrix permeability, as well as assisted reintroductions of the species into suitable vacant habitats should also improve its conservation.

show abstract

Population structure and movements of a threatened butterfly (Lopinga achine) in a fragmented landscape in Sweden

Cited by 62 publications

References 42 publications

Movements and flight morphology in the endangered Large Blue butterflies

Movements and flight morphology in the endangered Large Blue butterflies

Different flight behaviour of the endangered scarce large blue butterfly Phengaris teleius (Lepidoptera: Lycaenidae) within and outside its habitat patches

Within-patch mobility and flight morphology reflect resource use and dispersal potential in the dryad butterfly Minois dryas

Contact Info

Product

Resources

About