Bats are often misunderstood as agricultural pests and have received little attention for conservation efforts. However, bats are critical pollinators to commercially important agricultural products, such as durians. This study intends to confirm the role of small pteropodid bats as pollinating agents to flowering durian trees. Samplings were conducted in April 2018 to record bats visiting the flowers of two durian species, Durio zibethinus and Durio lowianus at Malaysian Agricultural Research and Development Institute (MARDI) Jerangau, Terengganu. Captured bats were swabbed for conspecific pollen load on their bodies to determine their potential role as pollinators. One hundred thirty-one (131) pollen swabs were collected from three pteropodid bat species: Eonycteris spelaea Dobson, Cynopterus brachyotis Dobson, and Cynopterus horsfieldii Gray. Only E. spelaea and C. brachyotis, however, were found with conspecific pollen loads on their bodies. Between the two, E. spelaea showed a higher potential to be the pollinating agent for the durian trees. Hence, they recorded more individuals carrying many conspecific pollen grains while visiting the trees. Thus, this finding will hopefully reduce the misconceptions held on bats and conserve them in Malaysia.
Angiostrongylus malaysiensis is a potential zoonotic parasite, which reported to co‐occur with A. cantonensis in human cerebrospinal fluid. It is a heteroxenous nematode that primarily develops through the early larval stages in gastropods and attains sexual maturity within rats. This study was conducted to determine the host species responsible for the reservoir of A. malaysiensis and investigate the risk factor for transmission among the hosts in Kuala Lumpur, Malaysia. Sampling was conducted in six recreational parks. The rats were trapped alive using steel wire traps with bait, while the gastropods were collected by active searching. The rats were euthanized and dissected to collect any adult worms observed. The molecular detection of A. malaysiensis was performed by PCR on gastropod tissue samples. Biotic and landscape factors were recorded for risk factor analysis. In total, 82 rats and 330 gastropods were collected throughout the study. Overall, 3.64% of gastropods and 32.9% of rats were infected with A. malaysiensis. Rattus tiomanicus (Malayan wood rat) and Parmarion martensi (Yellow‐shelled semi‐slug) were found as important hosts for A. malaysiensis. Host species, sampling site and macrohabitat type are risk factors associated with the prevalence of A. malaysiensis infection in rats. For gastropods, host species and sampling site are risk factors that correlate with the parasite detection. In total, 128 adult A. malaysiensis were recovered from the infected rats. The mean intensity of infection with adult A. malaysiensis was 4.65 for Rattus rattus complex and 4.90 for R. tiomanicus. Adult worms were found in the pulmonary artery or right ventricle, while eggs and first‐stage larvae were found in capillaries of the caudal lung lobe. Infected lungs showed extravasated red blood cells in the alveolar spaces. The pulmonary arteries in the infected lung lobe were thickened. Kepong Metropolitan Park is the hotspot area for A. malaysiensis in Kuala Lumpur. These results provide essential information for public health officials to develop targeted interventions to reduce the transmission of A. malaysiensis in urban areas, particularly in recreational parks.
Duarte, 2012). Due to its seasonality, there is high demand for durians, leading to a high economic value in cultivating the fruit. In 2018, it was reported that Malaysia and Thailand have exported durians worth approximately US$550 million to China, which seems to be the biggest and most lucrative market (Bernama, 2019;Neo, 2019).
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