Phenological Pattern and Community Structure of Dipterocarpaceae in Bukit Barisan Selatan National Park, Lampung

Hartiningtias, Diny; Andayani, Noviar; Winarni, Nurul L.

doi:10.1007/978-981-13-8249-9_15

Cited by 2 publications

(4 citation statements)

References 15 publications

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“…The D. gracilis flowering and fruiting seasons occur twice a year, indicating a sub-annual pattern (Hartiningtias et al 2019). Flowering occurs between February-March and August-September.…”

Section: Discussionmentioning

confidence: 99%

Regeneration failure and seedling growth of Dipterocarpus gracilis, a vulnerable dipterocarp in a tropical monsoon forest in Central Java, Indonesia

ROMADINI

Indrioko

Widiyatno³

et al. 2022

Biodiversitas

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Abstract. Romadini NP, Indrioko S, Widiyatno, Faridah E. 2022. Regeneration failure and seedling growth of Dipterocarpus gracilis, a vulnerable dipterocarp in a tropical monsoon forest in Central Java, Indonesia. Biodiversitas 23: 4928-4939. Dipterocarpus gracilis Blume is a vulnerable native dipterocarp species on Java Island, Indonesia. Yet, limited understanding regarding its regeneration capacity in its natural habitat is available to support a sustainable population. The research aimed to investigate the survival and growth of D. gracilis seedlings across canopy openness (CO) in Kecubung Ulolanang Nature Reserve, Central Java, Indonesia. After 10 months of observation, the highest survival rate was found in CO >20%-25% (44%), and the lowest survival rate was observed in CO <15%-20% (20%). The highest relative growth rate of height (RGR H) and the relative growth rate of diameter (RGR D) were found in CO >20%-25% (1.03 ± 0.03 cm and 1.87 ± 0.03 mm). CO <15% showed the lowest RGR H and RGR D (0.6 ± 0.02 cm and 1.39 ± 0.02 mm). The RGR H and D showed a significant CO >20%-25% increase compared with other canopy classes. Pearson’s correlation between RGR D and CO was 0.466 (p >0.05). Our observation indicated that dry months were a critical period for seedling survival. This study showed poor regeneration capacity of D. gracilis, implying that failure in a seedling establishment over time would alter the tree demographics of D. gracilis.

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Section: Discussionmentioning

confidence: 99%

Regeneration failure and seedling growth of Dipterocarpus gracilis, a vulnerable dipterocarp in a tropical monsoon forest in Central Java, Indonesia

ROMADINI

Indrioko

Widiyatno³

et al. 2022

Biodiversitas

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“…This biodiversity lives in rain forests with a complex structure and composition of vegetation, dominated by species from the Dipterocarpaceae family, which is the primary vegetation constituting tropical rainforests in Southeast Asia [1]. In its position as an emergent tree [2], Dipterocarpaceae impacts the distribution of rainfall, light, and microclimate for the plants listed below [3]. Dipterocarp trees also have an important role for fauna in BBSNP, for example, as nesting sites for several protected hornbill species and as a source of animal feed [4].…”

Section: Introductionmentioning

confidence: 99%

“…However, various Dipterocarpaceae species in BBSNP generally flower on an annual pattern, even some species can flower more than once a year. In addition, several previous studies reported that Dipterocarpaceae in other regions of Southeast Asia (Kalimantan, Peninsular Malaysia, and Pasoh) generally flower in a supra-aural pattern [3]. This difference led to the need for research to analyze the presence of GF in BBSNP until 2020.…”

Section: Introductionmentioning

confidence: 99%

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Modeling the Impact of Climate Change on General Flowering in Bukit Barisan Selatan National Park, Sumatera

Afifah

Sunarya

Dewi

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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In Southeast Asian dipterocarp forests, a general flowering (GF) occurs at the multiannual interval. At this phenomenon, at least 40% of the trees in the stands flower in synchrony, dominated by the flowering of the Dipterocarpaceae family that hypothesized to be caused by changes in climate factors, especially ENSO. This study aimed to determine the pattern of flowering trees in Bukit Barisan Selatan National Park (BBSNP) and to determine a model for predicting flowering patterns associated with climatic factors in 2021-2050. Flowers and fruits were observed every month from February 1998 to September 2020 at Way Canguk Research Station, BBSNP. The climatic factors used were temperature, rainfall, humidity, wind speed, and the ENSO index. We used a generalized linear model to link climatic factors and flowering and model future flowering. The results showed no GF in BBSNP because the highest flower synchronization only reached 37.8%. The climatic factor with the highest coefficient was ENSO, but flowering was mostly influenced by fluctuations in climate factors, not its absolute value. The model estimated that the flowering in 2021 - 2050 will peak to 34.4% in December 2044 and further ensure good forest regeneration. Thus, BBSNP can still be suitable for conservation purposes.

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Phenological Pattern and Community Structure of Dipterocarpaceae in Bukit Barisan Selatan National Park, Lampung

Cited by 2 publications

References 15 publications

Regeneration failure and seedling growth of Dipterocarpus gracilis, a vulnerable dipterocarp in a tropical monsoon forest in Central Java, Indonesia

Regeneration failure and seedling growth of Dipterocarpus gracilis, a vulnerable dipterocarp in a tropical monsoon forest in Central Java, Indonesia

Modeling the Impact of Climate Change on General Flowering in Bukit Barisan Selatan National Park, Sumatera

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