Short-term fitness and long-term population trends in the orchid Anacamptis morio

Hornemann, Gitte; Michalski, Stefan G.; Durka, Walter

doi:10.1007/s11258-012-0113-6

Cited by 20 publications

(9 citation statements)

References 55 publications

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“…Overall, the genetic population differentiation in our study was pronounced ( F ST = 0.365) supporting genetic divergence by isolation ( Hornemann, Michalski & Durka, 2012 ). According to Charlesworth (1998) , high F ST values can also be seen as an expression of the low diversity within populations, as we observed in our study.…”

Section: Discussionsupporting

confidence: 66%

Genetic differentiation, local adaptation and phenotypic plasticity in fragmented populations of a rare forest herb

Gentili

Solari

Diekmann

et al. 2018

PeerJ

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BackgroundDue to habitat loss and fragmentation, numerous forest species are subject to severe population decline. Investigating variation in genetic diversity, phenotypic plasticity and local adaptation should be a prerequisite for implementing conservation actions. This study aimed to explore these aspects in ten fragmented populations of Physospermum cornubiense in view of translocation measures across its Italian range.MethodsFor each population we collected environmental data on landscape (habitat size, quality and fragmentation) and local conditions (slope, presence of alien species, incidence of the herbivorous insect Metcalfa pruinosa and soil parameters). We measured vegetative and reproductive traits in the field and analysed the genetic population structure using ISSR markers (STRUCTURE and AMOVA). We then estimated the neutral (FST) and quantitative (PST) genetic differentiation of populations.ResultsThe populations exhibited moderate phenotypic variation. Population size (range: 16–655 individuals), number of flowering adults (range: 3–420 individuals) and inflorescence size (range: 5.0–8.4 cm) were positively related to Mg soil content. Populations’ gene diversity was moderate (Nei-H = 0.071–0.1316); STRUCTURE analysis identified five different clusters and three main geographic groups: upper, lower, and Apennine/Western Po plain. Fragmentation did not have an influence on the local adaptation of populations, which for all measured traits showed PST < FST, indicating convergent selection.DiscussionThe variation of phenotypic traits across sites was attributed to plastic response rather than local adaptation. Plant translocation from suitable source populations to endangered ones should particularly take into account provenance according to identified genetic clusters and specific soil factors.

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Section: Discussionsupporting

confidence: 66%

Genetic differentiation, local adaptation and phenotypic plasticity in fragmented populations of a rare forest herb

Gentili

Solari

Diekmann

et al. 2018

PeerJ

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“…In contrast, warmer temperature in unfavorable/range edge regions in Northern European countries can favor orchid extension there (e.g. in Germany, Hornemann et al, 2012). Therefore, we hypothesized a northward displacement of species in our study area related to increasing temperature (Parmesan and Yohe, 2003;IPCC, 2013).…”

Section: The North-south Gradient Of Species Declinementioning

confidence: 93%

Recent declines and range changes of orchids in Western Europe (France, Belgium and Luxembourg)

Vogt‐Schilb

Munoz

Richard

et al. 2015

Biological Conservation

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“…It should be noted that the photosynthetic apparatus of orchid species inhabiting a forest floor can acclimate to reduced illumination by changing the Chl a/b ratio to manage coordination between photosystem II (PSII) and photosystem I (PSI) [57,75]. Some species that require full light conditions are Anacamptis morio [84], Epipactis palustris [68], and Pseudorchis albida [85]. On the other hand, a significant number of orchids have a wide ecological valence in relation to light (e.g., Epipactis helleborine, Cephalanthera longifolia, Dactylorhiza fuchsii, Neottia ovata, and Platanthera bifolia) [9,73].…”

Section: Lightmentioning

confidence: 99%

The Role of Ecological Factors in Distribution and Abundance of Terrestrial Orchids

Djordjević

Tsiftsis

2022

Reference Series in Phytochemistry

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Distributed throughout the continents, terrestrial orchids are known for their great species richness and specificity in relation to pollinators and mycorrhizal symbionts. Moreover, a large number of them are rare and sensitive to environmental changes. This chapter is mainly focused on the terrestrial orchids of Europe and reviews the major environmental factors affecting the patterns of their distribution, abundance, and richness (elevation, latitude, longitude, area size, climatic factors, geological substrates, soil characteristics, vegetation types, effects of disturbance), as well as the significance of mycorrhizal fungi and pollination systems. Some new data, especially regarding the responses of orchids to climate change and their occurrence on specific geological and soil substrates and vegetation types, are presented. Although the distribution and abundance of terrestrial orchids are associated with the joint effects of most of the examined factors, some factors have emerged as crucial, especially on the northern and southern borders of their distribution. Furthermore, the role of environmental factors depends largely on the belowground strategies of orchids. The chapter highlights the importance of exploring the level of specialization of orchids with respect to habitat conditions as an important basis for their conservation.

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Short-term fitness and long-term population trends in the orchid Anacamptis morio

Cited by 20 publications

References 55 publications

Genetic differentiation, local adaptation and phenotypic plasticity in fragmented populations of a rare forest herb

Genetic differentiation, local adaptation and phenotypic plasticity in fragmented populations of a rare forest herb

Recent declines and range changes of orchids in Western Europe (France, Belgium and Luxembourg)

The Role of Ecological Factors in Distribution and Abundance of Terrestrial Orchids

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