Stream type influences food abundance and reproductive performance of a stream specialist: the Brown Dipper (Cinclus pallasii)

Hong, Shiao-Yu; Wang, Tsai-Wei; Sun, Yuan-Hsun; Chiu, Ming‐Chih; Kuo, Mei‐Hwa; Chen, Chao-Chieh

doi:10.1007/s10336-018-1604-6

Cited by 4 publications

(3 citation statements)

References 45 publications

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“…The conclusion is that areas with higher average temperature can be considered as the optimum ones, and areas at higher altitudes as suboptimum for the White-throated Dipper, and on the basis of this it is possible to expect that with rising temperature the breeding success rate and thus also the overall incidence of dippers in the monitored areas will increase, similarly as on the rivers in Scandinavia (Nilsson et al 2011). On the other hand, this positive effect of global climatic changes may be eliminated by the local impact of conditions in highland streams, where reduction in the amounts of water flowing in them may produce an environment less suitable for macrozoobenthic life and consequently also for the dippers living on it (Chen & Wang 2010, Hong et al 2019.…”

Section: Discussionmentioning

confidence: 99%

Breeding performance of the White-throated Dipper (Cinclus cinclus) under different temperature conditions

Baláž,

Hrčková,

Tulis

et al. 2021

Ornis Fenn

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Many bird species breeding under optimal temperature conditions show higher reproductive success. However, less information can be found about how the reproductive output differs within one population and one breeding season. To find inter and intra-seasonal differences in several aspects of breeding ecology and breeding output we monitored 223 breedings of the White-throated Dippers within the three river basins of northern Slovakia (Central Europe) in 2010–2018. We registered the beginning of egg laying, clutch size, nest success and the proportion of second clutches. There were significant differences in egg-laying commencement between breeding seasons. The mean February and March temperature significantly influenced the first egg day (20 February–18 March), median laying date (8 March–6 April), the interval between the first and the last first egg in all clutches in one breeding season (37–50 days) and the proportion of second clutches (0.77%–0.95%). However, the differences were found not only between different seasons. The egg-laying initiation of individual nests within each season was considerable affected by the altitude and the proportion of second clutches of particular nests was significantly influenced by their timing of egg laying.

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Section: Discussionmentioning

confidence: 99%

Breeding performance of the White-throated Dipper (Cinclus cinclus) under different temperature conditions

Baláž,

Hrčková,

Tulis

et al. 2021

Ornis Fenn

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“…Because dippers, which are not scavengers, are not affected by the amount of carcasses—in addition to their well‐studied relationship with salmon, as noted above—they are a suitable model species for examining the effect of salmon egg subsidies on the abundance and distribution of terrestrial animals. The brown dipper C. pallasii (Figure 1), which is distributed in Asia (Hong et al, 2019), preys on salmon eggs and juvenile salmon (Murata, 1900). However, its actual status has never been evaluated quantitatively, and its relationship with salmon subsidies has long been overlooked.…”

Section: Introductionmentioning

confidence: 99%

Relationship between salmon egg subsidy and the distribution of an avian predator

Yamada

Katahira

Miura

et al. 2022

Ecology and Evolution

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As a spatial subsidy, which is the phenomenon of transferring resources from a donor system to a recipient system, anadromous salmonids contribute to the supply of marine‐derived nutrients to freshwater and terrestrial systems. Live salmon and salmon carcasses and eggs are utilized by various organisms and affect their abundance and distribution. However, the evaluation of the effect of salmon subsidies on the abundance and distribution of terrestrial animals is biased toward predators or scavengers that utilize spawning adults and carcasses, and few studies have focused on the effect of salmon eggs as a subsidy. To avoid underestimating the function of salmon subsidies, the response to the availability of salmon eggs in various systems should be investigated. Here, we investigated the abundance and feeding behavior of the brown dipper Cinclus pallasii, as a consumer of salmon eggs, based on the hypothesis that the availability of salmon eggs affects the diet composition and stream distribution of this small predator. In addition, to test whether changes in the abundance of brown dippers are determined by salmon spawning, their abundance was compared upstream and downstream of the check dams in three streams during the peak spawning period. Brown dippers used salmon eggs during the spawning season (53.7% of diet composition), and their abundance increased as the number of spawning redds increased. In contrast, this pattern was not observed upstream of the check dam. These results suggested that the abundance and stream distribution of brown dippers vary according to the variation in the spatiotemporal availability of salmon eggs.

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“…Because dippers, which are not scavengers, are not affected by the amount of carcasses – in addition to their well-studied relationship with salmon, as noted above – they are a suitable model species for examining the effect of salmon egg subsidies on the abundance and distribution of terrestrial animals. The brown dipper C. pallasii (Figure 1), which is distributed in Asia (Hong et al, 2019), preys on salmon eggs and juvenile salmon (Murata, 1900). However, its actual status has never been evaluated quantitatively, and the relationship with salmon subsidies has long been overlooked.…”

Section: Introductionmentioning

confidence: 99%

Relationship between salmon egg subsidy and the distribution of an avian predator

Yamada

Katahira

Miura

et al. 2022

Preprint

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As a spatial subsidy, which is the phenomenon of transferring resources from a donor system to a recipient system, anadromous salmonids contribute to the supply of marine-derived nutrients to freshwater and terrestrial systems. Live salmon and salmon carcasses and eggs are utilized by various organisms and affect their abundance and distribution. However, the evaluation of the effect of salmon subsidies on the abundance and distribution of terrestrial animals is biased towards predators or scavengers that utilize spawning adults and carcasses, and few studies have focused on the effect of salmon eggs as a subsidy. To avoid underestimating the function of salmon subsidies, the response to the availability of salmon eggs in various systems should be investigated. Here, we investigated the abundance and feeding behaviour of the brown dipper Cinclus pallasii, as salmon egg a consumer, based on the hypothesis that the availability of salmon eggs affects the diet composition and stream distribution of this small predator. In addition, to test whether changes in the abundance of brown dippers are determined by salmon spawning or by other factors, their abundance was compared upstream and downstream of the dam. Brown dippers used salmon eggs during the spawning season (63% of diet composition), and their abundance increased as the number of spawning redds increased. In contrast, this pattern was not observed upstream of the dam. These results suggested that the abundance and stream distribution of brown dippers vary according to the variation in the spatiotemporal availability of salmon eggs.

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Stream type influences food abundance and reproductive performance of a stream specialist: the Brown Dipper (Cinclus pallasii)

Cited by 4 publications

References 45 publications

Breeding performance of the White-throated Dipper (Cinclus cinclus) under different temperature conditions

Breeding performance of the White-throated Dipper (Cinclus cinclus) under different temperature conditions

Relationship between salmon egg subsidy and the distribution of an avian predator

Relationship between salmon egg subsidy and the distribution of an avian predator

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