Cypripedium calceolus (Orchidaceae) in Central Russia: a case study for its populations in two protected areas in the Republic of Mordovia (Russia)

Abstract

AbstrACt. Cypripedium calceolus is considered as one of the flagship plant species of nature conservation. It is legally protected throughout Eurasia. Due to its wide distribution range, this Eurasian species could be considered as Least Concern, Near Threatened, Vulnerable, Endangered or Critically Endangered taxon. We performed an analysis of the status for some C. calceolus populations in Central Russia located in the Republic of Mordovia, with emphasis on populations situated in the federal protected areas. The aim of our study was to asses the modern state and the endangerment of C. calceolus populations. The environment conditions and species composition in five habitats with rare species in Mordovia were compared using phytoindication methods. Changes in stage spectrum and total abundance dynamics in C. calceolus populations over 2011-2016 were estimated and compared with available data from other locations within species' range. Reproductive ability of populations from the federal protected area, Mordovia State Nature Reserve, were studied. The results showed that C. calceolus grows in three habitat types that differed in environment conditions and floristic composition. Convallaria majalis was the only species registered in all studied locations, together with C. calceolus. In Central Russia this species occurs in broad-leaved, coniferous and mixed forests. The three populations of C. calceolus within the Mordovia State Nature Reserve and National Park "Smolny" were characterized by the dominance of vegetative individuals in stage spectrum, while generative plants predominated in two other populations located in mixed forests. No correlation between total abundance of individuals and stage spectrum in populations of threatened species has been found over the study period. The population in Mordovia Reserve showed a higher fruit set (36.7% as a mean) than others reported within its range. Continued population monitoring of C. calceolus in Central Russia from different habitat types is suggested. Generalization of jointly obtained demographic, ecological, phytocoenological data will be appropriate in order to develop measures for conservation and management of C. calceolus habitats.

A global systematic review on orchid data in Protected Areas

“…The highest number of population-based studies has been concerned investigations of 1-2 orchid species (e.g. Raventós et al, 2015;Khapugin et al, 2016Khapugin et al, , 2017aBr-zosko et al, 2017;Puchnina, 2017;Kirillova & Kirillov, 2020). However, there are a few studies (Pierce et al, 2006;Stefaniak et al, 2013;Talalaj et al, 2017) concerning a higher number of orchid species which are more valuable for further comparison.…”

Is the lady's-slipper orchid (Cypripedium calceolus) likely to shortly become extinct in Europe?—Insights based on ecological niche modelling

“…The database of C. calceolus localities was compiled based on information in public facilities (e.g. GBIF, ukrbin.com, tela-botanica.org, iNaturalist, redbook.minpriroda.gov.by, WildSlovenia, Portale della Flora d'Italia, naturamediterraneo.com), published articles and books [21] [24] [36][37][38][39][40][41][42][43][44][45][46][47][48][49], conservation reports (FAO, Berne Convention Resolution 6, Krajowy plan ochrony gatunku obuwik pospolity; [50]) and field observations made by Jakubska-Busse. While identification of numerous orchid species requires taxonomic skills and experience and for such taxa using information derived from public databases is not recommended, C. calceolus is the most spectacular terrestrial orchid in Europe which can be easily recognized even by amateur naturalists.…”

Découverte de Cypripedium calceolus (Orchidaceae) au Djurdjura (Algérie), nouvelle pour l’Afrique du Nord

“…La Suède continentale est une région qui compte les plus grandes populations européennes (Antonelli & al. 2009 (Khapugin & al. 2017).…”

“…Il s'est accroché sur un site et a depuis été propagé et réintroduit avec succès. Ailleurs, il est extrêmement rare (par exemple au Danemark) ou éteint (par exemple en Grèce), et préoccupation mineure, quasi menacée, vulnérable, en voie de disparition ou gravement en danger(Khapugin & al. 2017).…”