scholarly journals Anatomy of the Male Reproductive Organs of Javan Pangolin (Manis javanica)

2019 ◽  
Author(s):  
Yusrizal Akmal ◽  
Chairun Nisa ◽  
Savitri Novelina

Pangolin is an animal that has special attention by CITES since 1985. This is due to increase of market demand, especially from China. It causes the illegal hunting is increasing, so that alleged wild population decreases dramatically. Overcoming of decreasing of the pangolin populations in the wild, could be anticipated by captive breeding. The information about the status of the reproductive biology of wild animals is very important for implementation of ex situ conservation activities. One of the aspects of the reproductive biology of wild animals is knowledge of the anatomy and physiology of the reproductive organs both males and females.Nowdays, data on morphological characteristics of male reproductive organs of pangolin (M. javanica) still limited. The data obtained of this study is new information in reproductive biology, especially on the morphological characteristics of the male reproductive organs of pangolin (M. javanica). In addition, the information can be the data base that is important in the effort to support ex situ conservation.

2019 ◽  
Vol 25 (1) ◽  
pp. 13
Author(s):  
Ken Dara Cita ◽  
Jarwadi Budi Hernowo ◽  
Burhanuddin Masy'ud

<p>Recently, the population of the lesser bird of paradise (Paradisaea minor Shaw, 1809) has been decreasing due to illegal hunting, illegal trading, and habitat destruction. Meanwhile, ex situ conservation efforts of this bird are lacked and very low in the success of breeding. The aims of this research were to identify and analyze the component that determines the successful ex situ conservation of the lesser bird of paradise. The study was conducted from March until May 2016 in the TMII Bird Park, Mega Bird and Orchid Farm (MBOF), Ragunan Zoo, Bandung Zoo, and Al Wabra Wildlife Preservation (AWWP) in Qatar. Data<br />included an internal and external biological aspect of species, captive breeding technique, and social aspect, and were analyzed by Principle Component Analysis (PCA). The statistical analysis resulted that there were five determinant factors of successful ex situ conservation of lesser bird of paradise which the first determinant factors were maturity, diet, and ability of animal keeper.</p>


Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2986
Author(s):  
Joan Manubens ◽  
Oriol Comas ◽  
Núria Valls ◽  
Lluís Benejam

The strong decline of freshwater fish species in Europe implies that further ex-situ conservation plans should be implemented in the near future. The present study reflects our experience with the Pyrenean sculpin (Cottus hispaniolensis Bacescu-Mester, 1964)—a small cottid endemic to the Hispano-French Garona River basin. In recent years, the Spanish Pyrenean sculpin population has reached a limit situation. Because of that, the non-profit association ADEFFA—with support from the public administration—started the first captive breeding program for this species in 2006. Fourteen years later, this study presents the results and evaluates the different steps of the program, with the aim of discussing and improving the ex-situ conservation plans for this and other cold freshwater species. There is a description and a comparison between six consecutive phases during the captive breeding process: nesting behaviour, courtship, egg fixation, parental care (incubation), hatching and survival during juvenile development. The purposes of this project are to: (1) identify the most determining phases for a successful captive breeding; (2) identify the factors that had a major influence to the success of the critical phases; and (3) increase the number of the offspring. This study is based on thirty-three wild individuals collected from Garona River (Val d’Aran, Spanish Pyrenees). During the program, twelve couples spawned in captive conditions, with around 2300 eggs laid. Eight couples bred successfully, with 751 hatched individuals and 608 juveniles reared. The analysis of each step of the captive breeding does not reveal significant differences between phases, so it can be concluded that they are all critical at the same level. In the literature, similar study-cases of captive breeding programs identify incubation and survival phases as the most critical. Consequently, the management made for this project has probably allowed to overcome in part the main impediments described in other similar programs.


2018 ◽  
Vol 65 (3-4) ◽  
pp. 153-160
Author(s):  
Oz Barazani ◽  
Nir Hanin ◽  
Prabodh Kumar Bajpai ◽  
Yoni Waitz ◽  
Michal Barzilai ◽  
...  

The winter annuals Brassica tournefortii and Raphanus raphanistrum (Brassicaceae) share similar habitats and life-history traits, but differ in their reproduction system (self-compatibility vs. self-incompatibility, respectively). The two phylogenetically close species offer means to assess the effect of reproductive biology on genetic diversity between and within populations. In general, genetic diversity between populations of B. tournefortii was higher than that found between populations of R. raphanistrum, while higher genetic diversity indices were evident within populations of R. raphanistrum. In addition, the results of pairwise genetic distances indicated that the genetic distances between populations can be associated to the species’ reproductive biology and not to the population’s distribution pattern. We discuss whether knowledge of reproductive and habitat characteristics can be used to predict genetic diversity when planning sampling scheme for ex situ conservation.


2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Aldi Haryono ◽  
Hari Prayogo ◽  
. Erianto

Sambas Botanical Garden is an ex-situ conservation area, in its management there is the term Vak, which is a small management area with care and supervision that is more focused on the inside plants, Bellucia pentamera in the management of Vak is very limited and cut down, but actually Bellucia pentamera is forest plant which has the criteria of providing fruit almost all year long and is widely used by most wildlife. The study aims to record species of aves and diurnal mammals that use Bellucia pentamera as a source of feed for wild animals in the Sambas Botanical Gardens. The research was carried out in the management area and secondary forest, each represented by three growing places, namely hills, foothills and riparians. The study was conducted in July-August with a survey method by observing direct observation at the point of tangkalak guava stands with repetitions three times. The results showed that seven types of aves were found, namely Chloropsis sonnerati, Dicaeum trigonostigma, Dicaeum trochileum, Pycnonotus goiavie, Chloropsis cochinchinensis, Zosterops palpebrosus, and Arachnothera crassirostris, There are four types of mammals found, namely Macaca fascicularis, Sundasciurus lowii, Callosciurus prevostii, and Callosciurus orestes.Keywords: Aves, Bellucia pentamera, Feed, Mammals


2019 ◽  
Vol 59 ◽  
pp. e20195946 ◽  
Author(s):  
Eduardo França Alteff ◽  
Gustavo Gonsioroski ◽  
Marcelo Barreiros ◽  
Leonardo Gabriel Campos de Oliveira Torres ◽  
André Restel Camilo ◽  
...  

The Belem Curassow (Crax fasciolata pinima) is one of the most endangered birds in South America, without sightings of birds in the wild for 40 years. This subspecies is nationally and internationally classified as critically endangered and close to extinction, suffering from poaching and deforestation in its range. Here we present new records of free-living individuals made on three indigenous lands in Pará and Maranhão states: in part of Terra Indígena Mãe Maria, Bom Jesus do Tocantins, Pará; in locations within the Reserva Biológica do Gurupi/Terra Indígena Alto Turiaçu, Centro Novo do Maranhão, Maranhão; and around the Terra Indígena Rio Pindaré, Alto Alegre do Pindaré, Maranhão. We also provide recommendations to protect this bird via a dedicated conservation program which includes finding new individuals in non-sampled areas (north of BR-222), estimating population size, enhancing taxonomic and natural history knowledge, capturing wild animals in order to start urgent ex situ conservation programs, and developing environmental awareness programs with the local and indigenous populations.


2020 ◽  
Vol 272 ◽  
pp. 109587 ◽  
Author(s):  
Dragan Milatović ◽  
Dragan Nikolić ◽  
Slađana Janković ◽  
Dragan Janković ◽  
Jelena Stanković

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Nadya Rahmania ◽  
Indra Yustian ◽  
Arum Setiawan

Deer is one of the species that going through a reduction of population because its being used as the target of illegal hunting. To prevent the reduction in population, the efforts to save them with conservation method both in-situ or ex-situ has been done. Captive deer in PT. Pusri Palembang is the only captive deer which located in urban areas of Palembang and carrying out an ex-situ conservation effort. This research aimed to analyze the habitat condition such as daily feed, water needed, and shelter, to know about the level of palatability and also to analyze the habitat condition as a basic of captive deer management towards an optimalization. The research has been done in January 2015. The interview method, literature study and field observation are used to get the data about population and habitat condition in captive deer PT. Pusri Palembang. It can be concluded that the habitat condition in the captive deer PT. Pusri Palembang still quite good, and 1,5 hectare areas still be able to maintain the total of 44 deers (22 sambar deers and 22 chital deers) in 2015.Key words: sambar deer, chital deer, captivity, ex-situ conservation, PT Pusri Palembang. 


2019 ◽  
Vol 67 (6) ◽  
Author(s):  
Juliera Bejar ◽  
Mónica A. Murace ◽  
Mario Carlos Saparrat

Lygodium sp. is a climbing fern that occurs in open forests, settling frequently in areas with disturbed vegetation. In Argentina, Lygodium venustum inhabits in the protected area "Moconá" Provincial Park, in few and small populations. In-vitro cultivation of spores is a strategy for ex-situ conservation of species with reduced or threatened populations. Usually, fern spores need to be surface sterilized before sowing, to avoid the development of unwanted microorganisms. As part of our project focused on the conservation of native fern species in Argentina, the aim of this work was to evaluate a propagation protocol for L. venustum through in-vitro cultivation of spores, employing a standard procedure of disinfection, to investigate its effect on spore germination and the subsequent gametophyte as well as its response by the inoculation with a fungus. A batch of spores was previously treated with 10% (v/v) solution of NaOCl during 2 min and then sown in Dyer agar medium supplemented with 1% Nystatin (T1). The petri dishes were incubated in a growth chamber under white illumination (28μmol m-2 s-1) with a photoperiod of 12 hr and a temperature of 22±2°C. Another set of spores without previous disinfection was sown on Dyer agar medium and under the same conditions and used as a control (T0). Spore germination and gametophyte and sporophyte development were monitored through periodical observations under stereoscopic and light microscopes. As during cultures of non-disinfected spores a fungus developed in association with L. venustum gametophytes, its conidia were morphologically characterized as well as those obtained from the black spots present on the sporophyte leaves. A conidial suspension was applied to 20 days-old gametophytes obtained in axenic conditions to evaluate the appearance of any symptom. In both treatments (T1 and T0), spores germinated at 7 days after sowing. The pattern of spore germination followed the Anemia-type, unlike the Vittaria-type found by other researchers. Untreated spores showed a higher mean percentage of germination than those treated (86 and 72 % in 30 days, respectively). In T0 gametophytes grew in association with a fungus, whose conidia had the morphological characteristics of Pestalotiopsis maculans, as occurred with the conidia obtained from the black spots of L. venustum leaves. The association of P. maculans with L. venustum is reported here for the first time. The gametophytes developed in T0 and those inoculated with P. maculans became necrotic and died before producing gametangia, suggesting a pathogenic role of the fungus. The elevated percentage of spore germination registered in T0 could also indicate some effect of P. maculans or its metabolites in the promotion of spore germination. Gametophytes developed in T1 became bisexual or unisexual male, which points to the presence of some antheridiogen that induces the production of antheridia on smaller or slower-growing gametophytes. The sporophytes arose after 4 months of spore sown in T1, pointing out the methodology employed here suitable for the ex-situ conservation of L. venustum.


Animals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 31
Author(s):  
Gisela Kaplan

This paper discusses paradoxes in our relationship to and treatment of birds in captive and conservation contexts. The paper identifies modern and new challenges that arise from declining bird numbers worldwide. Such challenges have partly changed zoos into providers of insurance populations specifically for species at risk of extinction. They have also accelerated fieldwork projects, but by using advanced technological tools and in increasing numbers, contradictorily, they may cause serious harm to the very birds studied for conservation purposes. In practice, very few avian species have any notable protection or guarantee of good treatment. The paper first deals with shortcomings of identifying problematic avian behavior in captive birds. It then brings together specific cases of field studies and captive breeding for conservation in which major welfare deficits are identified. Indeed, the paper argues that avian welfare is now an urgent task. This is not just because of declining bird numbers but because of investment in new technologies in field studies that may have introduced additional stressors and put at risk bird survival. While the paper documents a substantial number of peer-reviewed papers criticizing practices counter to modern welfare standards, they have by and large not led to changes in some practices. Some solutions are suggested that could be readily implemented and, to my knowledge, have never been considered under a welfare model before.


2016 ◽  
Vol 8 (4) ◽  
pp. 2155-2163
Author(s):  
Suresh Kumar ◽  
Chandan Singh Purohit ◽  
R. N. Kulloli

Over expolitation of tubers of Ceropegia bulbosa var. lushii which is a narrow endemic in the Indian Desert has drastically declined its populations and made it threatened. This was confirmed by its absence at its previously reported sites in Barmer, Jodhpur, Jalore, Jhunjhunun and Jaisalmer. Its occurance in Jhalawar, a previously reported site and at another unreported site at Jalore with density of only 4-12 plants/ha confirmed that it has become rarer. Reasons for declining populations in terms of density and occurrence of C. bulbosa var. lushii due to both extrinsic and intrinsic factors (= threats) have been investigated in this paper. Extrinsic factors include overexploitation of tubers, habitat loss and fragmentation due to mining. Six tubers brought from its native sites regenerated successfully at Desert Botanical Garden , CAZRI, Jodhpur. Intrinsic threats were experimentally assessed by studying its life cycle for three years. Seeds produced by these plants under captivity showed 30-35% germination. Germination, phenology and growth of plants both, from seeds for one year and tubers for three years revealed many sensitive, risk prone stages which indicated potential threat to its regeneration in its native places. These included failure to seed set due to lack of pollinator, falling of immature follicles, exposure of seeds to open sun, sapling damage by wild animals and digging out of perenating tubers by wild ungulates and human being. Both extrinsic and intrinsic factors are responsible for its rarity in the wild. It emerged that for success in its ex-situ conservation, mature seeds, availability of partial shade and safety from wild animals are essential requirements.


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