scholarly journals A systematic conservation strategy for crop wild relatives in the Czech Republic

2017 ◽  
Vol 23 (4) ◽  
pp. 448-462 ◽  
Author(s):  
Nigel G. Taylor ◽  
Shelagh P. Kell ◽  
Vojtěch Holubec ◽  
Mauricio Parra-Quijano ◽  
Karel Chobot ◽  
...  
Keyword(s):  
Czech Republic ◽  
Crop Wild Relatives ◽  
Wild Relatives ◽  
Conservation Strategy ◽  
The Czech Republic

scholarly journals In situ and ex situ conservation gap analyses of crop wild relatives from Malawi

2020 ◽  
Author(s):  
Nolipher Khaki Mponya ◽  
Tembo Chanyenga ◽  
Joana Magos Brehm ◽  
Nigel Maxted
Keyword(s):  
Ex Situ Conservation ◽  
Plant Genetic Resources ◽  
Crop Wild Relatives ◽  
Wild Relatives ◽  
Conservation Strategy ◽  
Ex Situ ◽  
Grid Cells ◽  
Ex Situ Collections ◽  
Minimum Number

Abstract The study analysed the conservation gaps of the priority crop wild relatives (CWR) taxa for Malawi in order to contribute to the development of a harmonized conservation strategy that helps secure the priority CWR under in situ and ex situ. We used taxa distribution modelling, complementarity analysis and ecogeographic land characterization map to analyse spatial diversity and distribution of 123 priority taxa across different adaptive scenarios. We identified areas of observed and predicted richness, the minimum number of protected areas (PAs) that conserve the broadest ecogeographic diversity in situ and the minimum number of grid cells that capture highest diversity outside PAs to recommend the establishment of genetic reserves. We then analysed the representativeness of the conserved ecogeographic diversity of target taxa in ex situ collections to identify ex situ conservation gaps and advise for priority areas for ex situ collections. For the 123 taxa, 70.7% of the total diversity occurs in 36 PAs with 66.8% of the diversity captured in only 10 complementary PAs. Outside PAs, the broadest diversity was conserved in three grid cells of size 5 × 5 km. Fifty-three of 123 taxa have ex situ collections with only three taxa having ex situ collections at the Malawi Plant Genetic Resources Centre. The findings of this study will guide formulation of conservation actions for the priority taxa as well as lobbying for active conservation of the same under in situ and ex situ.

Diversity and conservation priorities of crop wild relatives in Mexico

2019 ◽  
Vol 17 (2) ◽  
pp. 140-150 ◽  
Author(s):  
Aremi R. Contreras-Toledo ◽  
Moisés Cortés-Cruz ◽  
Denise E. Costich ◽  
Ma. de Lourdes Rico-Arce ◽  
Joana Magos Brehm ◽  
...  
Keyword(s):  
Climate Change ◽  
Gap Analysis ◽  
Conservation Status ◽  
Crop Wild Relatives ◽  
Wild Relatives ◽  
Conservation Strategy ◽  
Ex Situ ◽  
Cultivated Plants ◽  
Conservation Priorities

AbstractCrop wild relatives (CWR) are valuable resources for crop breeding due to their close genetic relationship to the cultivated plants and their wide genetic variation, allowing the introgression of desirable traits into the crops, such as resistance to plant pests and diseases or adaptability to climate change. Mexico is a centre of agrobiodiversity, including CWR, but climate change, and other factors, are contributing to the loss of important Mexican CWR genetic diversity. The in situ and ex situ conservation status of Mexican priority CWR were assessed through a gap analysis as part of a national CWR conservation strategy for Mexico, to ensure the long-term preservation and improve the availability of these genetic resources. A set of 310 priority CWR taxa, previously identified as part of the national CWR inventory for Mexico, were analysed. Species distribution modelling and ecogeographic diversity analyses were used to detect gaps in in situ and ex situ conservation at taxon and ecogeographic levels. Priority target sites were identified throughout the country for complementary in situ and ex situ conservation of these taxa. The results obtained allow us to make recommendations for immediate conservation actions, thus helping to mitigate the threats to Mexican agrobiodiversity and enhance both national and global food security.

scholarly journals Are Valuable and Representative Natural Habitats Sufficiently Protected? Application of Marxan model in the Czech Republic

2020 ◽  
Vol 12 (1) ◽  
pp. 402
Author(s):  
Ondřej Cudlín ◽  
Vilém Pechanec ◽  
Jan Purkyt ◽  
Karel Chobot ◽  
Luca Salvati ◽  
...  
Keyword(s):  
Czech Republic ◽  
Protected Areas ◽  
Sustainable Management ◽  
Biodiversity Loss ◽  
Conservation Strategy ◽  
Nature Protection ◽  
Natural Habitats ◽  
The Czech Republic ◽  
Conservation Targets ◽  
Percent Area

The joint impact of human activities and climate change on natural resources lead to biodiversity loss. Therefore, it is important to select protected areas through systematic conservation planning. The present study assessed how representative natural habitats are protected under the nature conservation network, and to identify new—but so far insufficiently—protected areas containing these habitats for sustainable management. We used the Marxan model to select the most valuable insufficiently protected natural habitats in the Czech Republic as a representative example for a conservation strategy for Central–Eastern European environments. We set three conservation targets (25%, 50%, and 75%), defining how much percent area of valuable representative natural habitats should be added to the area of the habitats already included in the Nature Protection Network. To implement these conservation targets it is necessary to preserve 22,932 ha, 72,429, ha and 124,363 ha respectively of the conservation targets occurring in the insufficiently protected areas, and 17,255 ha, 51,620 ha, and 84,993 ha respectively of the conservation features in the areas without protection status. Marxan was revealed to be an appropriate tool to select the most valuable and insufficiently protected natural habitats for sustainable management.

scholarly journals Exploring the diversity and distribution of crop wild relatives of cacao (Theobroma cacao L.) in Colombia

2020 ◽  
Vol 67 (8) ◽  
pp. 2071-2085
Author(s):  
Carlos E. González-Orozco ◽  
Angela A. Sánchez Galán ◽  
Pablo E. Ramos ◽  
Roxana Yockteng
Keyword(s):  
Theobroma Cacao ◽  
Amazon Basin ◽  
Species Distribution Modelling ◽  
Crop Wild Relatives ◽  
Wild Relatives ◽  
Conservation Strategy ◽  
Distribution Modelling ◽  
The Pacific ◽  
Wide Range ◽  
Species Occurrences

Abstract Crop wild relatives are important for agriculture because they contain high levels of genetic diversity and grow in a wide range of habitats and environments. Colombia has the largest number of cacao crop wild relatives in the world, including different species of the genus Theobroma and its sister genus Herrania. This paper investigates diversity and distribution of cacao crop wild relatives in Colombia using species occurrences extracted from museum and herbarium archives, fieldwork collections gathered on recently conducted expeditions and species distribution modelling. A total of 211 botanical collections comprising 174 samples of Theobroma species, and 37 samples of Herrania species were collected on expeditions to Caguán–Caquetá in the upper Amazon basin and La Victoria, in the Pacific region of central Choco. These collections represent 22 taxa of cacao crop wild relatives. On the Chocó expedition, we reported the highest richness and endemism, where seven taxa of Theobroma and three of Herrania were found within a radius of 10 km, which has never been recorded before. On the Amazon expedition, we found an abundance of wild populations of Theobroma cacao on the river banks. We estimated that 95% of the most suitable environments for wild cacao in Colombia are in unprotected areas. Our study reveals that species diversity and endemism of cacao crop wild relatives in Colombia is under sampled and distributional patterns are incomplete. Based on the findings of our study, we propose a conservation strategy that consists of further expeditions to collect herbarium and germplasm samples, and habitat protection of cacao crop wild relatives in Colombia.

scholarly journals Results of projects on collecting, mapping, monitoring, and conserving of plant genetic resources 1990–2008

2010 ◽  
Vol 46 (Special Issue) ◽  
pp. S2-S8 ◽  
Author(s):  
V. Holubec ◽  
P. Hauptvogel ◽  
F. Paprštein ◽  
W. Podyma ◽  
M. Ševčíková ◽  
...  
Keyword(s):  
Czech Republic ◽  
Plant Genetic Resources ◽  
Crop Wild Relatives ◽  
Gene Bank ◽  
The Czech Republic ◽  
Mapping Software ◽  
National Heritage ◽  
Obsolete Cultivars ◽  
New Crop

&nbsp;Old landraces and obsolete cultivars represent a national heritage that must be conserved for future generations. Similarly, crop wild relatives (CWR) are a valuable gene pool for plant breeding or for direct introduction as a new crop. These materials have been mapped, collected, evaluated, regenerated, and conserved in the Gene Bank. In total, 3726 seed and vegetative samples have been collected in the Czech Republic, as well as 1582 abroad (in Slovakia, Poland and Austria) during cross-border cooperation projects. All collecting sites (over 1000) were located by GPS and plotted using the Geobaze Professional 2.8 mapping software. Altogether, 688 samples were declared as a national collection, and 627 seed accessions were conserved in the Gene Bank. In addition, 842 accessions of fruits were recommended for <I>in situ </I>conservation. Selected species of the families <I>Poaceae, Fabaceae, </I>and <I>Alliaceae</I>, which are rare or threatened in the Czech Republic, have been monitored <I>in situ </I>for 3–5 years. Two sites were suggested for protection as new protected areas.

Social variation in size at birth and preterm delivery in the Czech Republic and Sweden, 1989-91

1998 ◽  
Vol 12 (1) ◽  
pp. 7-24 ◽  
Author(s):  
Koupilova ◽  
Vagero ◽  
Leon ◽  
Pikhart ◽  
Prikazsky ◽  
...  
Keyword(s):  
Czech Republic ◽  
Preterm Delivery ◽  
The Czech Republic ◽  
Social Variation ◽  
Size At Birth

On Geropsychology in the Czech Republic

GeroPsych ◽  
2012 ◽  
Vol 25 (3) ◽  
pp. 161-166
Author(s):  
Hana Stepankova ◽  
Eva Jarolimova ◽  
Eva Dragomirecka ◽  
Irena Sobotkova ◽  
Lenka Sulova ◽  
...  
Keyword(s):  
Czech Republic ◽  
Clinical Practice ◽  
Old Age ◽  
Cognitive Rehabilitation ◽  
The Czech Republic ◽  
Rehabilitation Research

This work provides an overview of psychology of aging and old age in the Czech Republic. Historical roots as well as recent activities are listed including clinical practice, cognitive rehabilitation, research, and the teaching of geropsychology.

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