Habitat value of cities and rice paddies for amphibians in rapidly urbanizing Vietnam

Holzer, Katie A.; Bayers, Robert P.; Nguyen, Thien Tao; Lawler, Sharon P.

doi:10.1093/jue/juw007

Cited by 16 publications

(8 citation statements)

References 49 publications

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“…Pipistrellus javanicus Pija 31.7-35.0 5 5.3-8.0 5 42.9-50.7 6 1.4-6.4 6 9.8-23.4 6 Scotophilus kuhlii Scku 47.1-51. 1 Heaney et al [27]; 2 from free-flying bats in this study; 3 Sedlock et al [63]; 4 minimum frequency from zero-crossing recordings, Sedlock [62]; 5 from bats captured in this study; 6 recorded from free-flying bats in a large (10 × 5 × 5 m tunnel traps on Mt. Banahaw, unpublished data; 7 hand released free flying bats in this study; 8 recorded from hand-held bats on Mt.…”

Section: Assignment Of Bats To Functional Guildsmentioning

confidence: 67%

“…Unlike many staple crops, irrigated rice represents a species-rich and complex ecosystem that provides habitat for a diversity of vertebrates [1][2][3][4] and invertebrates [5]. Integrated pest management (IPM) [6] and ecological engineering [7,8] capitalize on the food web complexity of this agroecosystem-especially a rich arthropod community-to control insect pests.…”

Section: Introductionmentioning

confidence: 99%

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Local-Scale Bat Guild Activity Differs with Rice Growth Stage at Ground Level in the Philippines

et al. 2019

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High-flying insectivorous bats, as wide-ranging generalist insectivores, are valuable consumers of high-altitude migrating pests of rice in Southeast Asia. Here, we documented the behavior of relatively low-flying bats over irrigated rice to elucidate their potential role as predators of rice-associated pest insects in the Philippines. Specifically, we tested the local-scale effects of rice stage, particularly seedling and late vegetative stages, and time of night on acoustic activity of bats foraging near ground level within three functional guilds (based on foraging distance from background clutter). We also monitored bat activity from two 50 m-high towers to assess the vertical extent of relatively low-flying guilds, as well as document high-flying bat guild presence and temporal behavior. At ground level, the most active guild biased their activity and feeding over early growth stage fields, but also foraged at tower level. Activity of the bat guild adept at foraging closest to vegetation did not vary with time of night or rice stage and was absent from tower recordings. High-flying bats were predictably rare at rice level, but exhibited high foraging intensity at 50 m. Given the well-documented, sequential arrival of insect guilds with growth stage, these data suggest that at ground level edge-space bats may be important consumers of detritivores (e.g., mosquitoes). Moreover, our data suggest that just as habitat heterogeneity enhances the services of arthropod predators, these management practices also enhance bat activity and, presumably, their contribution to pest suppression.

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Section: Assignment Of Bats To Functional Guildsmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Local-Scale Bat Guild Activity Differs with Rice Growth Stage at Ground Level in the Philippines

et al. 2019

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“…Agricultural wetlands are generally adequate surrogate habitats for amphibians as they provide regular hydroperiods that facilitate breeding, as well as regular agricultural cycles that some amphibian species can tolerate [23][24][25][26][27][28][29]. However, it is important to distinguish between traditional rice agriculture that can support numerous species and industrialized rice agriculture with cemented embankment and underground waterways that is not adequate for amphibian survival [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Recommendations for IUCN Red List Conservation Status of the “Dryophytes immaculatus Group” in North East Asia

Borzée

2020

Diversity

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Threat assessment is important to prioritize species conservation projects and planning. The taxonomic resolution regarding the status of the “Dryophytes immaculatus group” and the description of a new species in the Republic of Korea resulted in a shift in ranges and population sizes. Thus, reviewing the IUCN Red List status of the three species from the group: D. immaculatus, D. suweonensis and D. flaviventris and recommending an update is needed. While the three species have similar ecological requirements and are distributed around the Yellow Sea, they are under contrasting anthropological pressure and threats. Here, based on the literature available, I have applied all IUCN Red List criterion and tested the fit of each species in each criteria to recommend listing under the appropriate threat level. This resulted in the recommendation of the following categories: Near Threatened for D. immaculatus, Endangered following the criteria C2a(i)b for D. suweonensis and Critically Endangered following the criteria E for D. flaviventris. All three species are declining, mostly because of landscape changes as a result of human activities, but the differences in range, population dynamics and already extirpated subpopulations result in different threat levels for each species. Dryophytes flaviventris is under the highest threat category mostly because of its limited range segregated into two subpopulations; and several known extirpated subpopulations. Immediate actions for the conservation of this species are required. Dryophytes suweonensis is present in both the Republic of Korea and the Democratic Republic of Korea (DPR Korea) and is under lower ecological pressure in DPR Korea. Dryophytes immaculatus is present in the People’s Republic of China, over a very large range despite a marked decline. I recommend joint efforts for the conservation of these species.

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“…Regarding amphibians, agricultural wetlands generally are adequate surrogate habitats as they provide regular hydroperiods that can be used for breeding, as well as regular agricultural cycles that some amphibian species can cope with [22][23][24][25][26][27][28]. It is however important to distinguish between traditional rice agriculture that can support numerous species, and industrialized rice agriculture that is not adequate for amphibian survival [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Preliminary Recommendations for National IUCN Red Listing Conservation Status of the “<em>Dryophytes immaculatus</em> group” in North East Asia

Borzée¹

2020

Preprint

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Threat assessment is important to prioritize species conservation projects and planning. The taxonomic resolution regarding the status of the “Dryophytes immaculatus group” and the description of a new species in the Republic of Korea resulted in a shift in ranges and population sizes. Thus, reviewing the IUCN Red List status of the three species from the group: D. immaculatus, D. suweonensis and D. flaviventris and recommending an update is needed. While the three species have similar ecological requirements and are distributed around the Yellow sea, they are under contrasting anthropological pressure and threats. Here, based on the literature available, I have applied all IUCN Red List criteria and tested the fit of each species in each criteria to recommend listing under the adequate threat level. This resulted in the recommendation of the following categories: Near Threatened for D. immaculatus, Endangered following the criteria C2a(i)b for D. suweonensis and Critically Endangered following the criteria E for D. flaviventris. All three species are declining, mostly because of landscape changes as a result of human activities, but the differences in range, population dynamics and already extirpated sub-populations result in different threat levels for each species. Dryophytes flaviventris is under the highest threat category mostly because of its limited range, segregated into two sub-populations and several known historical sub-populations are now extirpated. Immediate actions for the conservation of this species are required. Dryophytes suweonensis is present in both the Republic of Korea and the Democratic Republic of Korea and is under lower ecological pressure in DPR Korea. Dryophytes immaculatus is present in the People’s Republic of China, on a very large range despite a marked decline. I recommend joint efforts for the conservation of these species.

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Habitat value of cities and rice paddies for amphibians in rapidly urbanizing Vietnam

Cited by 16 publications

References 49 publications

Local-Scale Bat Guild Activity Differs with Rice Growth Stage at Ground Level in the Philippines

Local-Scale Bat Guild Activity Differs with Rice Growth Stage at Ground Level in the Philippines

Recommendations for IUCN Red List Conservation Status of the “Dryophytes immaculatus Group” in North East Asia

Preliminary Recommendations for National IUCN Red Listing Conservation Status of the “<em>Dryophytes immaculatus</em> group” in North East Asia

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