Insect diversity in various distances to forest edge in small nature reserve: A case study of Bantarbolang Nature Reserve, Central Java, Indonesia

Darsono, Darsono; Riwidiharso, Edy; Santoso, Slamet; Sudiana, Eming; Yani, Edy; Nasution, Erie Kollya; Aprilliana, Hexa; Chasanah, Titi

doi:10.13057/biodiv/d211048

Cited by 6 publications

(6 citation statements)

References 39 publications

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“…This is in keeping with broader studies of invertebrate biodiversity at edges, that suggest even sharp habitat edges as defined by major changes in soils and plants do not serve as hard edges but broad transition zones for many invertebrate taxa (Dangerfield et al, 2003). Indeed, forest edges in a tropical forest in Indonesia showed higher levels of insect diversity than the forest interior (Darsono et al, 2020). Whether particular fly species are more likely to carry Bcbva is unclear, but the variation in fly species community composition might be linked to the variation in Bcbva detection rates across habitats.…”

Section: Discussionmentioning

confidence: 99%

Fly iDNA suggests strict reliance of the causative agent of sylvatic anthrax on rainforest ecosystems

et al. 2023

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Metabarcoding of invertebrate‐derived DNA (iDNA) is increasingly used to describe vertebrate diversity in terrestrial ecosystems. Fly iDNA has also shown potential as a tool for detecting pathogens. Combining these approaches makes fly iDNA a promising tool for understanding the ecology and distribution of novel pathogens or emerging infectious diseases. Here, we use fly iDNA to explore the geographic distribution of Bacillus cereus biovar anthracis (Bcbva) along a gradient from the forest within Taï National Park, Côte d'Ivoire, out to surrounding villages. We tested fly pools (N = 100 pools of 5 flies) collected in the forest (N = 25 pools), along the forest edge (N = 50 pools), and near surrounding villages (N = 25 pools) for Bcbva. Using the same iDNA, we sought to reconstruct fly and mammal communities with metabarcoding, with the aim of investigating potential links with Bcbva detection. We detected Bcbva in 5/100 fly pools and positivity varied significantly across the habitat types (forest = 4/25, edge = 1/50, village = 0/25). It was possible to culture Bcbva from all positive fly pools, confirming their positivity, while sequencing of their whole genomes revealed a considerable portion of known genomic diversity for this pathogen. iDNA generated data about the mammal and fly communities in these habitats, revealing the highest mammal diversity in the forest and considerable changes in fly community composition along the gradient. Bcbva host range estimates from fly iDNA were largely identical to the results of long‐term carcass monitoring efforts in the region. We show that fly iDNA can generate data on the geographic distribution and host range of a pathogen at kilometer scales, as well as reveal the pathogen's phylogenetic diversity. Our results highlight the power of fly iDNA for mammal biomonitoring and pathogen surveillance.

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Section: Discussionmentioning

confidence: 99%

Fly iDNA suggests strict reliance of the causative agent of sylvatic anthrax on rainforest ecosystems

et al. 2023

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“…However, although the nest predation rate of Magpie Robins seemed to be lower than that of Shamas (3.23% vs. 16%), the difference was not statistically significant. Shamas exhibit a preference for nesting at the forest edges, possibly owing to the relatively higher abundance of insects in that habitat [68,69]. In a study on Blue Tits (Cyanistes caeruleus), supplemental food provisioning could reduce their nest-building times [70].…”

Section: Discussionmentioning

confidence: 99%

Comparison of Reproductive Strategies between Two Sympatric Copsychus Passerines

Zhang,

Bi,

Zhao

et al. 2024

Animals

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Reproduction plays a crucial role in determining the development, fate, and dynamics of bird populations. However, reproductive strategies vary among species and populations. In this study, we investigated the reproductive strategies of the Oriental Magpie Robin (Copsychus saularis) and White-rumped Shama (C. malabarica), which are closely related passerines that reproduce in sympatric areas. We found that although these two species were both cavity nesting, their nest-site selection differed; the Shama preferred nesting close to trees and forests, whereas the Magpie Robin nested close to human residential areas. Furthermore, their egg incubation patterns differed; the Shama increased daily incubation frequency with incubation time, but the Magpie Robin maintained its daily incubation time regardless of changes in incubation frequency. However, the nestling heating patterns of these two species were similar, indicating a critical demand for regulating hatchling body temperature during this crucial stage. The feeding frequencies of male parents were strongly correlated with those of females in both species, suggesting equal contribution and good synchronization between the sexes. Nestling feeding frequency was also correlated with nest cleaning frequency, implying coordination between feeding and defecation by parents and offspring, respectively. This research explored the divergence and convergence of reproductive strategies between these two sympatric species, providing valuable insights into the niche differentiation theory.

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“…Other multi‐species studies in Southeast Asia have found that, where hunting is minimal, moderate levels of forest disturbance do not have a strong negative impact on mammal richness and abundance (Tilker et al, 2019; Wearn et al, 2017). The preference for intact forest close to grasslands may be due to the combination of resources valuable to generalist species: early successional fruiting trees, prey densities, and higher quality forage within grasslands (Darsono et al, 2020; Nakashima et al, 2013; Wirth et al, 2008) and refuge from predators and hunters and larger trees for denning within intact forests. In more interior areas of the park, where the risks associated with edges and open habitat are minimal, disturbed forest may provide alternative access to such early successional resources.…”

Section: Discussionmentioning

confidence: 99%

Forest structure and seasonally inundated grassland shape tropical mammal communities under moderate disturbance

Masseloux

Burr

et al. 2022

Ecosphere

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Tropical biodiversity is threatened globally by anthropogenic disturbances, particularly forest degradation and overhunting. Where large mammals have been extirpated, smaller bodied “mesomammals” may play an important ecological role (e.g., as seed dispersers). However, these species are disproportionally affected by overhunting for wildlife trade markets and are routinely understudied as they tend to be rare, cryptic, and nocturnal. Few studies have examined spatiotemporal responses to anthropogenic disturbance by mesomammals at the community level, which may identify imbalances within an ecosystem that could threaten species persistence. We deployed camera traps throughout Cat Tien National Park (i.e., Nam Cat Tien area), southern Vietnam, to (1) identify long‐term changes in terrestrial mesomammal richness and (2) evaluate the effects of forest structure and anthropogenic disturbance on an 18‐species mesomammal community within a historically disturbed tropical forest using hierarchical Bayesian community occupancy models. We found that site occupancy was driven by the interaction between distance to seasonally inundated grassland and absolute forest cover (basal area per hectare). This may be due to the combination of intact forest benefits (refuge from predators and hunters, denning sites) and early successional grassland resources (forage quality), as well as high levels of tolerance for disturbed forest among the largely generalist mesomammal community of Nam Cat Tien. We found no negative effects of current anthropogenic factors at the community level. However, we did find that four disturbance‐tolerant small carnivores have been extirpated since the 1990s and continued human presence in the park suggests that hunting and snaring remain an acute threat to native mesomammals. Without continued efforts to address the unsustainable harvest of wildlife, Southeast Asian's remaining mesomammals are at risk of extirpation despite resilience to moderate levels of disturbance.

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Insect diversity in various distances to forest edge in small nature reserve: A case study of Bantarbolang Nature Reserve, Central Java, Indonesia

Cited by 6 publications

References 39 publications

Fly iDNA suggests strict reliance of the causative agent of sylvatic anthrax on rainforest ecosystems

Fly iDNA suggests strict reliance of the causative agent of sylvatic anthrax on rainforest ecosystems

Comparison of Reproductive Strategies between Two Sympatric Copsychus Passerines

Forest structure and seasonally inundated grassland shape tropical mammal communities under moderate disturbance

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