scholarly journals Conservation assessment at a regional level: the study case of 'Delphinium fissum' subsp. 'sordidum' (Ranunculaceae), an endemic Iberian subspecies with disjunct distribution

2019 ◽  
Vol 40 (2) ◽  
pp. 165-175
Author(s):  
Ruben Ramírez-Rodríguez ◽  
Francisco Amich
Keyword(s):  
Ex Situ Conservation ◽  
Conservation Status ◽  
Regional Level ◽  
Ex Situ ◽  
Disjunct Distribution ◽  
Conservation Assessment ◽  
Conservation Values ◽  
Study Case

Delphinium fissum subsp. sordidum is a restricted endemic subspecies whose core distribution is located in the central-western Iberian Peninsula with a disjunct subpopulation in Sierra Mágina (Jaén Province). This article reports a detailed study of its current distribution, population size and structure, and the threats that it faces. Phytosociological analysis shows two main plant communities where D. fissum subsp. sordidum develops: Quercion pyrenaicae and Quercion broteroi. According to the most recent IUCN categories and criteria, the conservation status of D. fissum subsp. sordidum is “Endangered” (EN) in Castile and Leon. We propose the creation of a Plant Micro-Reserve (PMR) in an enclave with high geological, ecological and conservation values. Medium-long term and individualized monitoring programs are required for all distribution range of Delphinium fissum subsp. sordidum. An overall Recovery Plan for the subspecies should be considered and implemented, including in-situ and ex-situ conservation measures that guarantee its protection, conservation and recovery.

scholarly journals Propagation of Threatened Nepenthes khasiana: Methods and Precautions

2015 ◽  
Vol 7 (3) ◽  
pp. 313-315
Author(s):  
Jibankumar S. KHURAIJAM ◽  
Rup K. ROY
Keyword(s):  
Plant Species ◽  
Threatened Species ◽  
Ex Situ Conservation ◽  
Ex Situ ◽  
In The Wild ◽  
Propagation Technique ◽  
Subsequent Propagation ◽  
Nepenthes Khasiana

Ex-situ conservation is an important key in the management of rare, endangered and threatened (RET) plant species and its effectiveness depends on several factors. Maintenance of viable germplasm and its subsequent propagation plays an important role in long term conservation of many RET species. Nepenthes khasiana is a rare and gravely threatened species in the wild due to over-collection and other threats. The species needs urgent in-situ and ex-situ conservation. Development of easy to propagate techniques would pave faster multiplication for its use of educational, medicinal and horticultural purpose. In the present paper, successful propagation technique of Nepenthes khasiana through seeds is demonstrated along with detailed information on precautions to be taken during the adoption of the techniques.

scholarly journals The decline and conservation management of the threatened endemic palms of the Mascarene Islands

Oryx ◽  
2002 ◽  
Vol 36 (1) ◽  
pp. 56-65 ◽  
Author(s):  
Mike Maunder ◽  
Wayne Page ◽  
John Mauremootoo ◽  
Richard Payendee ◽  
Yousoof Mungroo ◽  
...  
Keyword(s):  
Large Scale ◽  
Conservation Management ◽  
Conservation Status ◽  
Iucn Red List ◽  
Ex Situ ◽  
Population Fragmentation ◽  
Wild Populations ◽  
Mascarene Islands

Abstract The conservation status of the five genera and 11 species of palm endemic to the Mascarene Islands (Mauritius, La Réunion and Rodriques) are reviewed. All species are threatened with extinction; nine taxa are classified as Critically Endangered and four as Endangered on the 2000 IUCN Red List. Two taxa survive as single wild specimens (Hyophorbe amaricaulis and Dictyosperma album var. conjugatum); an additional seven taxa have wild populations of 100 or fewer. Although the historical phase of large-scale forest clearance has passed, the remaining palm populations in the Mascarenes are under threat from the effects of population fragmentation, invasive plants and animals, and high levels of seed predation that prevent natural regeneration. The advantages of in situ management for the recovery of these palm populations are discussed. Without a long-term conservation programme, utilising both in situ and ex situ management, extinction of wild populations will occur.

scholarly journals Mitigating Batrachochytrium salamandrivorans in Europe

2019 ◽  
Vol 40 (3) ◽  
pp. 265-290 ◽  
Author(s):  
Valarie Thomas ◽  
Yu Wang ◽  
Pascale Van Rooij ◽  
Elin Verbrugghe ◽  
Vojtech Baláž ◽  
...  
Keyword(s):  
Ex Situ Conservation ◽  
Preventive Measures ◽  
Public Awareness ◽  
Ex Situ ◽  
Chytrid Fungus ◽  
Population Declines ◽  
Batrachochytrium Salamandrivorans ◽  
Mitigation Methods

Abstract The infectious chytrid fungus Batrachochytrium salamandrivorans (Bsal) has been responsible for severe population declines of salamander populations in Europe. Serious population declines and loss of urodelan diversity may occur if appropriate action is not taken to mitigate against the further spread and impact of Bsal. We provide an overview of several potential mitigation methods, and describe their possible advantages and limitations. We conclude that long-term, context-dependent, multi-faceted approaches are needed to successfully mitigate adverse effects of Bsal, and that these approaches should be initiated pre-arrival of the pathogen. The establishment of ex situ assurance colonies, or management units, for species threatened with extinction, should be considered as soon as possible. While ex situ conservation and preventive measures aimed at improving biosecurity by limiting amphibian trade may be implemented quickly, major challenges that lie ahead are in designing in situ disease containment and mitigation post-arrival and in increasing public awareness.

scholarly journals The diversity of aroids (Araceae) in Bogor Botanic Gardens, Indonesia: Collection, conservation and utilization

2018 ◽  
Vol 19 (1) ◽  
pp. 140-152 ◽  
Author(s):  
YUZAMMI YUZAMMI
Keyword(s):  
Medicinal Plants ◽  
Ex Situ Conservation ◽  
Conservation Status ◽  
Ornamental Plants ◽  
Ex Situ ◽  
Botanic Gardens ◽  
Terrestrial Plants ◽  
The World ◽  
Scientific Value

Yuzammi. 2018. The diversity of aroids (Araceae) in Bogor Botanic Gardens, Indonesia: Collection, conservation and utilization. Biodiversitas 19: 140-152. Bogor Botanic Gardens is an ex-situ conservation centre, covering an area of 87 ha, with 12,376 plant specimens, collected from Indonesia and other tropical countries throughout the world. One of the richest collections in the Gardens comprises members of the aroid family (Araceae). The aroids are planted in several garden beds as well as in the nursery. They have been collected from the time of the Dutch era until now. These collections were obtained from botanical explorations throughout the forests of Indonesia and through seed exchange with botanic gardens around the world. Several of the Bogor aroid collections represent ‘living types’, such as Scindapsus splendidus Alderw., Scindapsus mamilliferus Alderw. and Epipremnum falcifolium Engl. These have survived in the garden from the time of their collection up until the present day. There are many aroid collections in the Gardens that have potentialities not widely recognised. The aim of this study is to reveal the diversity of aroids species in the Bogor Botanic Gardens, their scientific value, their conservation status, and their potential as ornamental plants, medicinal plants and food. The methods of the research include direct observation in the garden and nursery collections, analysis of the Gardens’ long-term registration database, as well as herbarium studies in both the Herbarium Bogoriense and the Gardens’own herbarium. A total of 130 species of aroids belonging to 36 genera have been cultivated in the Bogor Botanic Gardens. It is estimated that the gardens has 29% of the total number of genera in the world (21 genera are native to Indonesia). The aroid collection consists of terrestrial plants, aquatic plants and climbing plants (61 species, 12 species and 57 species, respectively). Amorphophallus paeoniifolius has developed further as a food plant. Genera such as Aglaonema, Alocasia, Apoballis, Rhaphidophora and Scindapsus have long been used as ornamental plants. Futhermore, some Homalomena species can be extracted for essential oils, while Epipremnum pinnatum has application in the treatment of cancer. Descriptions of some endemic, rare and high value species are discussed in this paper.

scholarly journals Conservation of genetic diversity in Mediterranean endemic species: Arenaria balearica (Caryophyllaceae)

2020 ◽  
Vol 153 (3) ◽  
pp. 348-360
Author(s):  
Javier Bobo-Pinilla ◽  
Noemí López-González ◽  
Julio Peñas
Keyword(s):  
Genetic Diversity ◽  
Endangered Species ◽  
Endemic Species ◽  
Ex Situ Conservation ◽  
Molecular Techniques ◽  
Ex Situ ◽  
Disjunct Distribution ◽  
The Mediterranean ◽  
Rocky Habitats

Background – Biodiversity loss is a problem that needs to be urgently addressed, particularly with the uncertainties of climate change. Current conservation policies principally focus on endangered species but they often give little consideration to the evolutionary processes, genetic diversity, or the rarity of non-endangered species. Endemic species occurring in rocky habitats that are undergoing exceptional habitat loss appear to be one of the most important candidates for conservation. The aim is to establish in situ and ex situ conservation recommendations for the Mediterranean endemic species Arenaria balearica.Material and methods – Arenaria balearica is a species endemic to the Mediterranean with a disjunct distribution range throughout Majorca, Corsica, Sardinia, and other small Tyrrhenian islands. A combination of molecular techniques (AFLPs and plastid DNA) was employed to determine genetic diversity and rarity across populations and to calculate the Relevant Genetic Units for Conservation (RGUCs). Moreover, Species Distribution Models (SDMs) were developed to assess the potential current distribution and the expected situation under future climatic scenarios.Key results – To preserve the genetic diversity and rarity of the species, in situ conservation is proposed for six populations as RGUCs. Moreover, as the RGUCs can only account for a part of the phylogeographic signal, ex situ conservation is also suggested for some additional populations. According to the results, the habitat suitability in the 2050 scenario is limited and suitable areas for A. balearica could have disappeared by 2070. Therefore, the persistence of the species could be in danger in a short period of time and conservation planning becomes necessary.

scholarly journals Conservation status of eleven wild bean (Phaseolus spp. Fabaceae) species in northeastern Mexico

2019 ◽  
Vol 10 (2) ◽  
pp. 417-429
Author(s):  
Alma Delia Baez-González ◽  
Efraín Acosta-Díaz ◽  
José Saúl Padilla-Ramírez ◽  
Isidro H. Almeyda-León ◽  
Francisco Zavala-García
Keyword(s):  
Conservation Status ◽  
Ex Situ ◽  
Current Conservation ◽  
Wild Bean ◽  
Natural Factors ◽  
Northeastern Mexico ◽  
Not At Risk ◽  
Phaseolus Species

Rare and endemic plants, such as the wild species of Phaseolus (Fabaceae) in northeastern Mexico, deserve high priority in conservation efforts because of their uniqueness and usefulness as plant genetic resource. This is particularly important because during the last decades, some of these species have become endangered because of anthropogenic and natural factors. The study aimed to determine the current conservation status of 11 reported wild bean species in northeastern Mexico, using wild bean data from 77 expeditions to the states of Nuevo León and Tamaulipas during the period 1869-2013.The conservation status of the different species was determined according to the Official Mexican Standard NOM-059-SEMARNAT-2010. The categories of risk were based on four indicators: amplitude of distribution, habitat status, biological vulnerability and impact of human activity. The following eight wild Phaseolus species are not at risk of extinction: P. albiflorus, P. glabellus, P. leptostachyus, P. maculatifolius, P. neglectus, P. pedicellatus, P. vulgaris and P. zimapanensis. On the other hand, P. altimontanus Freytag & Debouck is categorized as threatened; P. novoleonensis Debouck, in danger of extinction; and P. plagiocylix Harms, possibly extinct.  Current in situ and ex situ conservation programs need to be strengthened and expanded for the medium- and long-term protection of wild bean species in northeastern Mexico.

Updating and assessing plant endemism in Egypt

Phytotaxa ◽  
2021 ◽  
Vol 502 (3) ◽  
pp. 237-258
Author(s):  
MOHAMED M. EL-KHALAFY ◽  
KAMAL H. SHALTOUT ◽  
DALIA A. AHMED
Keyword(s):  
Ex Situ Conservation ◽  
Conservation Status ◽  
Life Forms ◽  
Field Trips ◽  
Ex Situ ◽  
Endemic Plants ◽  
Literature Reviews ◽  
Data Deficient ◽  
Plant Endemism

This study aimed to update and assess the list of endemic plants in the Egyptian flora, based on information obtained during field trips, literature reviews, and herbaria consultations. Life forms, habitat, national distribution, rarity forms, local threats, and conservation status according to IUCN categories, were estimated for these plants. Twenty field visits were conducted from summer 2015 to spring 2020 to many locations all over Egypt. The recent list includes 42 species (belonging to 37 genera and 20 families inhabiting 10 main habitats). Rocky surfaces and sandy formations have the highest number of endemic species, most of them are therophytes. Sinaitico-Arabian sector is the richest in endemics (19 taxa), followed by the Marioutico-Arishian (17 taxa). Small geographic range-small habitat-non-abundant plants are the most represented rarity form. All endemics are exposed to at least one type of local threat, the most prominent threats being over-collecting and over-cutting. According to the guidelines of IUCN, 31 of the endemic taxa are threatened, thus requiring in situ and ex situ conservation. Out of them, 11 taxa are believed to be Extinct, five are Critically Endangered, and 15 Endangered. In addition, 11 taxa are evaluated as Data Deficient. Further studies are still needed to verify and fill the information gaps about the Egyptian endemics.

scholarly journals THE CONTRIBUTION OF CIBODAS BOTANIC GARDEN AS AN EX-SITU CONSERVATION SITE FOR TROPICAL MOUNTAINOUS PLANTS: THE LAST DECADE

2019 ◽  
Vol 19 (2) ◽  
pp. 161
Author(s):  
Imawan Wahyu Hidayat ◽  
Neneng Ine Kurnita ◽  
Dimas Ardiyanto
Keyword(s):  
Ex Situ Conservation ◽  
Conservation Status ◽  
Natural Habitat ◽  
Plant Conservation ◽  
Ex Situ ◽  
Botanic Garden ◽  
Threatened Plant Species ◽  
Plant Collection ◽  
Quantitative Descriptive

Abstract: The threats to the plant biodiversity become more advance along with rapid degradation of the natural habitat. Plants preservation needs accompaniment between in-situ and ex-situ conservation altogether. The ex-situ plant conservation plays more important roles in order to help conserve threatened plant species. Cibodas Botanic Garden (CBG) is a government institution which has the main assignment on ex-situ plant conservation, especially tropical mountainous plants. In the last decade, CBG has conducted exploration and plants collection in order to retrieve them from the destructive pressures in their habitat. This study aimed to asses the CBG’s contribution to ex-situ plant conservation through the addition number of planted plants and to describe the important value to conservation. The study conducted through a quantitative descriptive method, based on data inventory of the newly planted plant in the garden from 2008 to 2018. This also assessed the increasing collection of each year and descriptively explaining the background data, species variety, and their conservation status. The results described that the additional number was 473 specimens and the average increase was 43 specimens per-year. These originated from exploration and plants collection 248 specimens, donation 217 specimens, self-propagation seven specimens, and one specimen from seeds exchange. The most planted was Nepenthaceae with 84 specimens, secondly Phillantaceae with 21 specimens, and Lauraceae 15 specimens. There were 116 species (152 specimens) which have conservation status. These expected to be a comprehensive description of the CBG’s plant collection and meaningful for the conservation efforts in general.Keywords: ex-situ plant conservation; garden collection; Cibodas Botanic Garden (CBG)

scholarly journals Status of the Ex Situ and In Situ Conservation of Brazilian Crop Wild Relatives of Rice, Potato, Sweet Potato, and Finger Millet: Filling the Gaps of Germplasm Collections

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 638
Author(s):  
Marcelo B. Medeiros ◽  
José F. M. Valls ◽  
Aluana G. Abreu ◽  
Gustavo Heiden ◽  
Suelma Ribeiro-Silva ◽  
...  
Keyword(s):  
Finger Millet ◽  
Ex Situ Conservation ◽  
Gap Analysis ◽  
In Situ Conservation ◽  
Germplasm Collection ◽  
Crop Wild Relatives ◽  
Wild Relatives ◽  
Ex Situ ◽  
The Status

This study presents the status of ex situ and in situ conservation for the crop wild relatives of rice, potato, sweet potato, and finger millet in Brazil, and the subsequent germplasm collection expeditions. This research is part of a global initiative entitled “Adapting Agriculture to Climate Change: Collecting, Protecting, and Preparing Crop Wild Relatives” supported by the Global Crop Diversity Trust. Species of the primary, secondary, and tertiary gene pools with occurrences reported in Brazil were included: Oryza alta Swallen, O. grandiglumis (Döll) Prod., O. latifolia Desv., O. glumaepatula Steud., Eleusine tristachya (Lam.) Lam., E. indica (L.) Gaertn., Solanum commersonii Dunal, S. chacoense Bitter, Ipomoea grandifolia (Dammer) O’Donell, I. ramosissima (Poir.) Choisy, I. tiliacea (Willd.) Choisy, I. triloba L., and I. cynanchifolia Meisn. The status of the ex situ and in situ conservation of each taxon was assessed using the gap analysis methodology, and the results were used to plan 16 germplasm collection expeditions. Seeds of the collected material were evaluated for viability, and the protocols for seed germination and cryopreservation were tested. The final conservation score, resulting from the gap analysis and including the average of the ex situ and in situ scores, resulted in a classification of medium priority of conservation for all the species, with the exception of I. grandifolia (high priority). The total accessions collected (174) almost doubled the total accessions of these crop wild relatives incorporated in Embrapa’s ex situ conservation system prior to 2015. In addition, accessions for practically absent species were collected for the ex situ conservation system, such as Ipomoea species, Eleusine indica, and Solanum chacoense. The methods used for dormancy breaking and low temperature conservation for the Oryza, Eleusine, and Ipomoea species were promising for the incorporation of accessions in the respective gene banks. The results show the importance of efforts to collect and conserve ex situ crop wild relatives in Brazil based on previous gap analysis. The complementarity with the in situ strategy also appears to be very promising in the country.

Conservation and Change: A Comparison of In situ and Ex situ Conservation of Jala Maize Germplasm

Crop Science ◽  
2006 ◽  
Vol 46 (1) ◽  
pp. 428-436 ◽  
Author(s):  
Elizabeth B. Rice ◽  
Margaret E. Smith ◽  
Sharon E. Mitchell ◽  
Stephen Kresovich
Keyword(s):  
Ex Situ Conservation ◽  
Ex Situ ◽  
Maize Germplasm
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