scholarly journals First report on the germination requirement of Pterygopleurum neurophyllum seeds

2020 ◽  
Vol 48 (1) ◽  
pp. 41-48
Author(s):  
Hyuk Joon Kwon ◽  
Yu-Ri Kim ◽  
Soo-Young Kim
Keyword(s):  
Endangered Species ◽  
Immersion Time ◽  
Red List ◽  
Effect Of Temperature ◽  
Cold Stratification ◽  
Light Conditions ◽  
Germination Requirement ◽  
Embryo Length ◽  
Germinated Seeds ◽  
All Treatment

Pterygopleurum neurophyllum is a class II endangered species and Red list class CR species in Korea. In this study, we considered the effects of cold stratification on embryo development in P. neurophyllum seeds, and analysed the effect of temperature and light conditions, immersion time in 50% H2SO4 and GA3 concentration on subsequent germination. The embryo of P. neurophyllum seeds showed elongation after four weeks of cold stratification (4°C) and embryo length was significantly increased after eight weeks. Germinated seeds were observed after 12 weeks of cold stratification. The cold-stratified (12 weeks) seeds showed the highest germination (23.1%) at 20°C. After 30 minutes H2SO4 immersion, germination of cold-stratified seeds was 29.4%. The GA3 concentration study showed the highest germination for seeds treated with 0.5 g L-1 GA3 (37.2%). The maximum germination across all treatment combinations was 79.8% for seeds given 30 minutes of 50% H2SO4 treatment and 12 weeks of cold stratification and then treated for 24 hours in 0.5 g L-1 GA3.

scholarly journals Co-extinct and critically co-endangered species of parasitic lice, and conservation-induced extinction: should lice be reintroduced to their hosts?

Oryx ◽  
2014 ◽  
Vol 49 (1) ◽  
pp. 107-110 ◽  
Author(s):  
Lajos Rózsa ◽  
Zoltán Vas
Keyword(s):  
Endangered Species ◽  
Host Specificity ◽  
Host Species ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Published Data ◽  
Common Phenomenon ◽  
Global Extinction

AbstractThe co-extinction of parasitic taxa and their host species is considered a common phenomenon in the current global extinction crisis. However, information about the conservation status of parasitic taxa is scarce. We present a global list of co-extinct and critically co-endangered parasitic lice (Phthiraptera), based on published data on their host-specificity and their hosts’ conservation status according to the IUCN Red List. We list six co-extinct and 40 (possibly 41) critically co-endangered species. Additionally, we recognize 2–4 species that went extinct as a result of conservation efforts to save their hosts. Conservationists should consider preserving host-specific lice as part of their efforts to save species.

scholarly journals Miconia rheophytica (Melastomataceae: Miconieae), a new and endangered species from the Magdalena Medio region of Colombia

Phytotaxa ◽  
2018 ◽  
Vol 371 (1) ◽  
pp. 55
Author(s):  
JUAN MAURICIO POSADA-HERRERA ◽  
FRANK ALMEDA
Keyword(s):  
Endangered Species ◽  
Iucn Red List ◽  
Red List ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Leaf Surfaces ◽  
Red List Categories ◽  
Bright Blue ◽  
Lanceolate Leaf

Miconia rheophytica is described, illustrated, and compared with presumed relatives in the Octopleura clade. It is distinguished by its narrowly elliptic to ovate-lanceolate leaf blades with entire to subentire margins that have evenly spaced spreading smooth eglandular trichomes 0.8−1.4 mm long, an indumentum of dendritic trichomes with short axes and terete radiating arms on distal internodes, adaxial petiole surfaces, and primary and secondary veins on abaxial leaf surfaces, unribbed hypanthia that are constricted and tapered distally below the torus and covered with a mixture of basally roughened trichomes and dendritic trichomes with short axes, anthers with two ± truncate apical pores, eglandular anther appendages, 3-locular ovary, and berries that are bright blue at maturity. It is known only from flash-flooded riverbanks in three river canyons in the Magdalena Medio region of Antioquia, Colombia. A conservation assessment of “Endangered” is recommended for this species based on IUCN Red List Categories and Criteria.

scholarly journals Records of Jerdon's baza Aviceda jerdoni (Blyth, 1842) from eastern Nepal

2021 ◽  
Vol 5 (1) ◽  
pp. 47-50
Author(s):  
Sanjaya Raj Tamang ◽  
Amrit Kumar Poudel ◽  
Pratik Pandeya
Keyword(s):  
Endangered Species ◽  
Sea Level ◽  
First Record ◽  
Red List ◽  
Critically Endangered ◽  
Mean Sea Level ◽  
Critically Endangered Species

Jerdon's baza Aviceda jerdoni is one of the least studied raptor species in Nepal which is listed as a Critically Endangered species in the ‘Nepal's Red List of Birds’. This paper presents the records of this species during opportunistic surveys, conducted in 2018/2019 from Ilam and Jhapa districts of eastern Nepal. A total of 18 individuals were sighted during the study period with the first record of nest of the species in Nepal. The sightings were made between 70 m, the lowest global known range to 1048 m from mean sea level, and the highest altitudinal record for Nepal. Hunting and unintentional prey poisoning were identified as major threats for species in the study site.

scholarly journals Check list of waterbirds at Wadi Djedi in Ziban Oasis-Algeria

2019 ◽  
pp. 34-43
Author(s):  
Y. Nouidjem ◽  
F. Mimeche ◽  
E. Bensaci ◽  
S. Merouani ◽  
A. Arar ◽  
...  
Keyword(s):  
Endangered Species ◽  
Iucn Red List ◽  
Red List ◽  
White Stork ◽  
Check List ◽  
Ciconia Ciconia ◽  
Water Birds ◽  
Kentish Plover

This pioneering work is the first to document the aquatic avifauna community of the Wadi Djedi in the Ziban region in southeast of Algeria. We present results obtained through the monthly counts of waterbirds conducted from September 2013 to September 2016. On this wetland we recorded 36 species of water birds representing 11 families. The Anatidae family was the most numerous, with 11 species. From among all the species, 18 were wintering species, nine were visitors, eight were sedentary breeding species (including the ruddy shelduck Tadorna furruginea and Kentish plover Charadrius alexandrines) and one species was migratory nesting (the white stork Ciconia ciconia). Two species (the teal marbled Marmaronetta angustirostris and ferruginous duck Aythya nyroca) are listed as Vulnerable on the IUCN Red List of endangered species.

scholarly journals Ground beetles (Carabidae) from slopes of Macošská stráň and Vilémovická stráň (Protected landscape area of Moravský kras, Czech Republic)

2011 ◽  
Vol 59 (3) ◽  
pp. 143-150 ◽  
Author(s):  
Jana Niedobová ◽  
Vladimír Hula ◽  
Pavla Šťastná
Keyword(s):  
Czech Republic ◽  
Endangered Species ◽  
Threatened Species ◽  
Ground Beetles ◽  
Red List ◽  
The Other ◽  
Pitfall Traps ◽  
The Czech Republic ◽  
Group A

Collecting of Carabidae was conducted using pitfall traps at four sites. The first two sites (T1 + T2) were at the slope of Macošská stráň and the other two sites (T3 + T4) at the slope of Vilémovická stráň. The study was done in 2008 and 2009. At Macošská stráň in 2008, 21 species of Carabidae with the total number of 228 individuals were found and in 2009, 18 species of the total number of 116 specimens were collected. At Vilémovická stráň in 2008, 22 species of Carabidae with the total number of 1977 specimens were found and in 2009, 21 species of the total number of 623 specimens were caught. In terms of classification of relictness, Macošská stráň in 2008 was dominated by species of adaptable group A (60%), species of eurytop group (E) were represented by 35% and of relic group (R) by 5%. In 2009, the same representation of species of groups A and E (47%) were found and the species of group R were represented by 6%. Vilémovická stráň in 2008 was dominated by species of group A (52%), species of group E were represented by 43% and of group R by 5%. In 2009 also dominated species of group A (54%), species of group E were represented by 41% and of group R by 5%. In the studied area we reported four endangered species of Carabidae protected by Law (No. 395/1992 Coll.) as amended, these were Calosoma auropunctatum (critically endangered), Brachinus crepitans, Carabus ullrichii and Cicindela campestris (endangered) and two species listed under the Red List of Threatened Species of the Czech Republic (Veselý et al., 2005). One of the species is listed as vulnerable (Calosoma auropunctatum) and one as near endangered (Carabus cancellatus). Another significant species found on the monitored sites was Aptinus bombarda.

scholarly journals Odonates from Bodoquena Plateau: checklist and information about endangered species

2017 ◽  
Vol 17 (3) ◽  
Author(s):  
Ricardo Koroiva ◽  
Marciel Elio Rodrigues ◽  
Francisco Valente-Neto ◽  
Fábio de Oliveira Roque
Keyword(s):  
Endangered Species ◽  
Iucn Red List ◽  
Red List ◽  
Mato Grosso ◽  
Number Of Species ◽  
Red List Species ◽  
Data Deficient ◽  
First Time ◽  
Species Being ◽  
Mato Grosso Do Sul

Abstract Here we provide an updated checklist of the odonates from Bodoquena Plateau, Mato Grosso do Sul state, Brazil. We registered 111 species from the region. The families with the highest number of species were Libellulidae (50 species), Coenagrionidae (43 species) and Gomphidae (12 species). 35 species are registered in the IUCN Red List species, four being Data Deficient, 29 of Least Concern and two species being in the threatened category. Phyllogomphoides suspectus Belle, 1994 (Odonata: Gomphidae) was registered for the first time in the state.

scholarly journals Conserving imperiled species: a comparison of the IUCN Red List and U.S. Endangered Species Act

2011 ◽  
Vol 5 (1) ◽  
pp. 64-72 ◽  
Author(s):  
J. Berton C. Harris ◽  
J. Leighton Reid ◽  
Brett R. Scheffers ◽  
Thomas C. Wanger ◽  
Navjot S. Sodhi ◽  
...  
Keyword(s):  
Endangered Species ◽  
Endangered Species Act ◽  
Iucn Red List ◽  
Red List ◽  
Imperiled Species

scholarly journals Amphibians of Vassununga State Park, one of the last remnants of semideciduous Atlantic Forest and Cerrado in northeastern São Paulo state, Brazil

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Ronildo Alves Benício ◽  
Fernando Rodrigues da Silva
Keyword(s):  
Endangered Species ◽  
Species Composition ◽  
Atlantic Forest ◽  
Sao Paulo ◽  
Red List ◽  
Southeastern Brazil ◽  
São Paulo ◽  
Species List ◽  
Paulo State ◽  
São Paulo State

Abstract Although São Paulo state has one of the best known amphibian fauna in Brazil, there are still protected areas for which the species composition remains unknown. Here, we present the first species list of anuran amphibians in Vassununga State Park. This area is one of the last remnants of semideciduous Atlantic Forest and Cerrado in the northeastern region of São Paulo state, southeastern Brazil. To survey species, we visited six sites (two ponds, two streams, and two transects) in December, January, and February of 2014-2015 and 2015-2016, totalizing 18 days of field samplings at each site. We recorded 24 anuran species belonging to four families: Bufonidae (2 species), Hylidae (11 species), Leptodactylidae (10 species), and Microhylidae (1 species). Anurans consist mainly of generalist and widely distributed species. Although none of the species recorded are threatened with extinction according to the International Red List of Endangered Species (IUCN), four species have declining population and another three species have unknown population trends.

Sign in / Sign up

Export Citation Format

Share Document