Diversity of Wild Bees along Elevational Gradient in an Agricultural Area in Central Java, Indonesia

Widhiono, Imam; Sudiana, Eming; Darsono, Darsono

doi:10.1155/2017/2968414

Cited by 16 publications

(14 citation statements)

References 22 publications

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“…Community composition and mutualistic interactions also respond to changes across elevation gradients, which illustrate how environmental stress influences biotic communities [6, 7]. Responses of bee-plant interactions across elevation gradients have been explored [8, 9]. However, little information is available on bees compare to other pollinator taxonomic groups such as beetles, wasps and flies as regards their response to elevation gradients, especially in Africa.…”

Section: Introductionmentioning

confidence: 99%

Insect-flower interaction networks vary among endemic pollinator taxa over an elevation gradient

2018

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Interaction networks are sensitive to elevation gradients through changes in local distribution of interacting partners. Here, we use plant-pollinator interaction network metrics to assess the effect of elevation on flowers and flower-visiting insect assemblages on a sentinel mountain used for monitoring climate change in the flower- and insect-rich Cape Floristic Region. We also use these interaction metrics to explain the effect of environmental factors on the interaction networks. We did this over four vegetation zones <1640m asl, as determined by former botanical studies. Overall, bees were the dominant flower visitors, followed by monkey beetles, and far behind were wasps and flies. The middle elevation zone (650–744 m a.s.l), which is also an ecotone between two distinct botanical zones, had the highest species richness and abundance of interacting plants and insects. Interaction frequency and size of network were also greatest in the middle zone, as were network diversity, generality, and linkage density, while lowest in the peak zone. In sum, there was distinct elevation zoning of flower-visiting insects. The greatest zonal change was between species at the middle compared with peak zone. Large-sized monkey beetles, bees and flies characterized the unique assemblage in the peak zone (1576–1640 m a.s.l.). The insect zonation tracked that of plant assemblages, with air temperature (lapse rate) being the primary driver of bee distribution, with lowest levels in the peak zone. In contrast, beetle distribution was driven mostly by flower assemblages as well as air temperature. In turn, wasp and fly interaction networks were not affected by any of the measured environmental variables. We conclude that increased elevation stress from reduced temperatures, changing abiotic weather conditions (e.g. strong winds at high elevations),and decline in flowering plant composition causes breakdown of interaction networks involving bees and beetles but not that of flies and wasps.

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Section: Introductionmentioning

confidence: 99%

Insect-flower interaction networks vary among endemic pollinator taxa over an elevation gradient

2018

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“…Another aspect that may have masked the effect of conservation level on Hymenoptera richness and abundance are the altitudinal differences amongst some of the reserves. Parasitoids (van Noort 2004;Veijalainen et al 2014;Hall et al 2015), wasps and bees (Perillo et al 2017;Widhiono et al 2017) and ants (Guerrero and Sarmiento 2010;Burwell and Nakamura 2011) have been found to be sensitive to altitude in tropical and subtropical ecosystems. However, to see more clearly how Hymenoptera are responding to both altitude and conservation level it would be necessary to use lower taxa.…”

Section: Discussionmentioning

confidence: 99%

Hymenoptera functional groups’ shifts in disturbance gradients at Andean forests in Southern Ecuador

Mazón¹,

López²,

Romero³

2020

JHR

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Ecosystems under ecological restoration should be monitored in order to investigate if the ecosystem is being functionally recovered, especially in highly vulnerable biodiversity hotspots like Andean forests. Here we sampled Hymenoptera families in four Andean forest reserves above 1800 masl from Southern Ecuador, in three conservation levels in each forest: low (degraded), medium (10–15 years of recovery) and high (well-conserved forest). All Hymenoptera families were classified into four functional groups: predators, herbivores, pollinators and parasitoids. A total of 32 hymenopteran families were collected, with parasitoids clearly dominating in the samples. Family assemblages were not statistically different, neither in abundance nor family richness. Assemblages were more similar between them in the high and medium areas than in low conservation areas, where assemblages were very variable and showed a higher functional diversity in two of the reserves. The low presence of pollinators may be due to the high humidity during the sampling and the sampling method. Although some results are promising for the restoring trajectory, especially for parasitoids, we should keep in mind that this is at family level, so it would be interesting to know if these patterns persist at lower taxonomic levels.

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“…Hal ini juga sesuai dengan pernyataan dari Parmesan & Yohe (2003) bahwa telah terjadi perubahan fenologi pembungaan pada berbagai jenis tanaman berbunga diseluruh dunia sebagai respon terhadap perubahan suhu karena pemanasan global. Koti et al (2005) (Widhiono et al, 2017).…”

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Rahayuningtyas¹,

Sudiana²,

Proklamasiningsih³

2020

bioe

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Global warming or often referred to as global warming is a form of imbalance of ecosystems on earth due to the process of increasing the average temperature of the atmosphere, sea, and land on earth. The impact of global warming can make agricultural plants flower faster while pollinating insects are not ready so that the reproductive cycle is disrupted. Studying temperature changes as a result of global warming on an organism can be represented by an altitude gradient. The study aims to determine the effect of temperature changes on the phenology of winged bean plants (Psophocarpus tetragonolobus) which is described by the gradient of altitude and to determine the diversity of pollinator insects. The independent variable in this study is the difference in the gradient in elevation of the place, while the dependent variable is the phenology of the development of winged bean flowers and pollinator insects. The results of the study of abiotic factors showed that air temperature and sunlight intensity decreased in line with the increase in altitude from the surface of the seawater, while the humidity increased. The phenological analysis of winged bean plants showed the influence of altitude on plant height, number of leaves and branches, time of the first appearance, number of flowers and flower size as well as the diversity of pollinator insects

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Diversity of Wild Bees along Elevational Gradient in an Agricultural Area in Central Java, Indonesia

Cited by 16 publications

References 22 publications

Insect-flower interaction networks vary among endemic pollinator taxa over an elevation gradient

Insect-flower interaction networks vary among endemic pollinator taxa over an elevation gradient

Hymenoptera functional groups’ shifts in disturbance gradients at Andean forests in Southern Ecuador

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