Desirable site conditions for introduction sites for a locally rare and threatened fern species Asplenium septentrionale (L.) Hoffm

Rünk, Kai; Pihkva, Karin; Zobel, Kristjan

doi:10.1016/j.jnc.2014.02.001

Cited by 20 publications

(4 citation statements)

References 27 publications

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“…A combined effect of physical environment (topography, soil depth) and landscape modulation by organisms (shrub mounds, biological soil crust, animal diggings) cause run‐off redistribution, thus creating water, sediments, and nutrients enriched or impoverished patches. Such microenvironmental differences can be very important for the establishment of translocated plants (Guerrant & Kaye 2007; Maschinski et al 2012; Roncal et al 2012; Rünk et al 2014).…”

Section: Discussionmentioning

confidence: 99%

“…A critical decision in translocation is determining a habitat able to support self‐sustaining populations and the most suitable microsites within this habitat (Godefroid et al 2011; Maschinski & Haskins 2012; Dunwiddie & Martin 2016; Volis 2016). Choosing potential introduction sites for threatened species is a challenging task due to the complexity of the species' environmental and biotic interactions, an often poorly documented historical range and often a very limited number of extant populations (Noël et al 2011; Maschinski et al 2012; Rünk et al 2014). Even close matching of recipient and reference sites based on similarity in vegetation, soil, and other habitat features can be misleading, e.g.…”

Section: Introductionmentioning

confidence: 99%

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Translocation success in Iris atrofusca: importance of replicating sites and long‐term monitoring

Volis

Blecher

2021

Restoration Ecology

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Translocation gains importance as a conservation approach of choice for imperiled plant species whose habitat is rapidly disappearing. To be successful, translocation must be done into a location that has optimal conditions for the species, but determining these conditions can be difficult for species with poorly known historic distribution. Unfortunately, most endangered plant species, including those requiring immediate action, have poorly documented historic ranges. In this study, we show, using the threatened rhizomatous Iris atrofusca, that the determination of suitable locations should be done experimentally over multiple locations, and the evidence for the success of translocation comes not just from the establishment of the planted individuals or their reproduction, but, more importantly, from the appearance, establishment and reproduction of recruits. Although 12 years after introduction, 2 of the 22 populations went extinct and the number of survived plants was below 10% in 12 populations, 4 established recruits were detected outside the planted areas in that year and another 48 individuals 2 years later. We conclude that locations in the immediate vicinity of recruits should be used for actual translocation. We also report, after analyzing the effect of four environmental variables on I. atrofusca performance across experimental microsites, the most favorable set of topographic and soil parameters for this species, namely deep soil having few rock fragments and minor slope steepness. Microsites with these parameters should be the preferred locations for I. atrofusca introduction. Overall, our study demonstrates the importance of (1) experiments preceding actual translocation and (2) long-term monitoring for translocation projects.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Translocation success in Iris atrofusca: importance of replicating sites and long‐term monitoring

Volis

Blecher

2021

Restoration Ecology

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“…Thus, for PSESPs we strongly recommend the experimental approach, i.e. experimental introduction across multiple (micro)sites within the current or documented historic species range (reintroduction), or within the presumed ecological niche of the species (translocation) ( Fiedler and Laven, 1996 , Falk et al., 1996 , Maschinski et al., 2004 , Maschinski and Wright, 2006 , Guerrant and Kaye, 2007 , Volis et al., 2010 , Volis et al., 2011 , Rünk et al., 2014 ).…”

Section: In Situ Managementmentioning

confidence: 99%

How to conserve threatened Chinese plant species with extremely small populations?

Volis

2016

Plant Diversity

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The Chinese flora occupies a unique position in global plant diversity, but is severely threatened. Although biodiversity conservation in China has made significant progress over the past decades, many wild plant species have extremely small population sizes and therefore are in extreme danger of extinction. The concept of plant species with extremely small populations (PSESPs), recently adopted and widely accepted in China, lacks a detailed description of the methodology appropriate for conserving PSESPs. Strategies for seed sampling, reintroduction, protecting PSESP locations, managing interactions with the local human population, and other conservation aspects can substantially differ from those commonly applied to non-PSESPs. The present review is an attempt to provide a detailed conservation methodology with realistic and easy-to-follow guidelines for PSESPs in China.

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“…Different grass species have inherent genetic composition that enhances their varied adaptation to water stress during droughts. Some of the adaptation mechanisms are related to; rooting depth, pattern and distribution; seed germination rates, leaf characteristics, and stem:leaf ratios among others (Rünk et al 2014). During the dry seasons and droughts, pastures are exposed to water stress and they respond by among others; reducing transpiration rates to minimize losses, leaf rolling, growing leaf hairs etc.…”

Section: Introductionmentioning

confidence: 99%

Water Stress Tolerance of Six Rangeland Grasses in the Kenyan Semi-arid Rangelands

Koech¹

2015

AJAF

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This study evaluated six grass species in terms of water stress responses by visual quality and living ground cover attributes and the recovery responses post water stress grown at 80, 50, 30% field capacity soil moisture contents. The grass species evaluated were Chloris roxburghiana, Eragrostis superba, Enteropogon macrostachyus, Cenchrus ciliaris, Chloris gayana, and Sorghum sudanense. The grasses demonstrated varied levels of water stress tolerance as evaluated by quality ratings based on colour (greenness) and uniformity of colour, leaf firing, living matter and wilting signs. All species declined in visual quality rating with prolonged water stress treatment with exception of Sorghum sudanense and Cenchrus ciliaris that had better quality ratings of six after 42 days water stress period. Sorghum sudanense, Chloris gayana and Cenchrus ciliaris had accelerated recovery in quality, attaining a visual rating of eight at 21 days of water stress period. The three soil moisture content treatments had higher quality ratings than rainfed conditions which represented water deficit. Sorghum sudanense and Chloris gayana had higher quality ratings and water use efficiency under rainfed compared to the other species. All the grasses showed higher living ground cover greater than 40% at recovery period of 28 days, when irrigation was resumed at the prescribed level, and attained living cover of over 60% by day 42. Sorghum sudanense, Chloris gayana and Cenchrus ciliaris were able to withstand water stress longer and had also a quick recovery among the six grasses. These three species are recommended for pasture establishment in semi-arid lands where water supply uncertainties exist, owing to their high tolerance to water stress.

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Desirable site conditions for introduction sites for a locally rare and threatened fern species Asplenium septentrionale (L.) Hoffm

Cited by 20 publications

References 27 publications

Translocation success in Iris atrofusca: importance of replicating sites and long‐term monitoring

Translocation success in Iris atrofusca: importance of replicating sites and long‐term monitoring

How to conserve threatened Chinese plant species with extremely small populations?

Water Stress Tolerance of Six Rangeland Grasses in the Kenyan Semi-arid Rangelands

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