Terpsiphone Atrocaudata Research Articles

수동음향모니터링 방법을 이용한 긴꼬리딱새 Terpsiphone atrocaudata의 소리 빈도 연구

We tried to study the song frequency of Black paradise flycatcher and from May 1 to June 30, 2023, we got songs using songmeter at 15 sites in Geoje, Hallyeohaesang National Park. As a result, the Black paradise flycatcher was first recorded on May 10. The song frequency during the daily was the most frequent at 06:00, and the song frequency was the most active during the mid-June period. The correlation between song frequency and weather factors was analyzed. There was a positive correlation with the daily average temperature, and a negative correlation was found with precipitation and relative humidity factors. This study is meaningful in that it presents the criteria for the timing of the Black paradise flycatcher survey.

Mitochondrial genome sequence of black paradise flycatcher (Aves: Monarchidae) and its phylogenetic position

We generated the complete mitochondrial genome of the black paradise flycatcher (Terpsiphone atrocaudata; Family: Monarchidae), an ecologically important insectivorous bird in Asian forest ecosystems. The mitogenome was 16,984 bp in length and consisted of 13 protein-coding genes, 22 tRNAs, two rRNAs and a control region. Gene composition and arrangement in the mitogenome were similar to those of related families Corvidae and Laniidae available in GenBank. However, tRNAAla was located between COXII and ATP8 genes in the mitogenome of T. atrocaudata while tRNALys, was in the same location in the mitogenomes of Corvidae and Laniidae. The phylogenetic tree based on the mitogenomes of T. atrocaudata and the related families supported that Monarchidae was the sister taxa to the clade of Laniidae and Corvidae. The mitogenome of T. atrocaudata will be a valuable genetic resource for phylogenetic analyses and implication of conservation and management of the species.

An observation of a nest of the Black Paradise Flycatchers Terpsiphone atrocaudata attended by two males

An observation of a nest of the Black Paradise Flycatchers <i>Terpsiphone atrocaudata </i>attended by two males

千葉県清澄山系におけるサンコウチョウの営巣環境

The breeding habitat of the Black Paradise Flycatcher Terpsiphone atrocaudata was studied in the Kiyosumi mountains, Chiba Prefecture. Five nests were found in the study area in 2004. The song areas in the three sites that were intensively monitored were similar in size (approximately 1.9 ha). All song areas comprised forestry plantations with low tree density, which appeared suitable for the aerial feeding habits of this species. All nest sites were near forest borders and the tree densities beneath and around them were low. The nests were built on vines or dead branches with canopy cover, but branches and leaves below them were scarce. These features of the nest sites probably provide access to the nests for parents and defense against nest predators. Although the Black Paradise Flycatcher is said to inhabit dark forests, my results suggest that it may prefer (at least partially) forests with low tree density as breeding habitats.

Habitat requirements of the Seychelles Black Paradise Flycatcher Terpsiphone corvina: a re‐evaluation of translocation priorities

The critically endangered Seychelles Black Paradise Flycatcher Terpsiphone corvina was once found on at least five of the inner (granitic) islands in the Seychelles archipelago, western Indian Ocean. Currently, it is only found on two islands, with c. 98% of the world population (c. 150–200 individuals) occurring on the 10‐km2 island of La Digue. Creation of additional island populations is therefore considered crucial in improving its conservation status. The presence of native broad‐leaved plateau forest in proximity to wetland areas is proposed as an important selection criterion when considering the suitability of other islands for translocation, due to the presumed importance of insect prey (dependent on water) in the diet. We quantified habitat use, territory composition, the effect of water on invertebrate abundance, and foraging and breeding success to determine the importance of native broad‐leaved woodland and wetland areas for Flycatchers. Flycatcher territories contained significantly more native broad‐leaved woodland (88%) than its availability on the plateau (43%); Flycatchers used native tree species significantly more for both foraging (81%) and nesting (95%) than their availability within territories (71%); and territory size varied inversely with the density of native broad‐leaved tree species. Native broad‐leaved forest was associated with semipermanent and permanent water bodies and availability of native forest habitat was a good predictor of territory distribution. The number of aerial insects trapped was higher close to water, but there was no effect of the proximity to water on the number of insects counted on foliage. The majority of identified prey species in adult diet were not dependent on water: Orthoptera and Lepidoptera were the most common prey groups, comprising 66% of identified prey items. There was no effect of proximity to water on foraging or breeding success (c. 35%): depredation was the major factor determining breeding success, and accounted for the majority of nest failures. The importance of wetland areas to Flycatchers therefore appears to have been over‐emphasized. The implications for translocation and conservation of the Flycatcher are discussed.

Nest site use and changes in habitat of the Seychelles Black Paradise Flycatcher

The population size and extent of habitat for the Seychelles Black Paradise Flycatcher are compared with earlier investigations. The estimated world population is 90 individuals (1992). Deforestation on the western plateau of La Digue is estimated to have resulted in a 24% decline in Takamaka Calophyllum inophyllum and Indian Almond Terminalia catappa woodland since 1978. Monitoring of nest site use supports previous associations of the Flycatcher 's dependence on Takamaka and Indian Almond woodland (Collar and Stuart, 1985; Watson, 1991). Preliminary observations suggest that land management practices (clearing Takamaka and Indian Almond woodland for development) should be mitigated in view of the potential impact on nest site use by the flycatcher.

The status and conservation of threatened and near-threatened species of birds in the Red River Delta, Vietnam

SummaryThe Red River Delta in northern Vietnam is an important stopover and wintering site for migratory waterbirds. During the spring of 1994, six globally threatened and five near-threatened species were observed in the coastal areas of the Delta. According to current applications of threat categories, one of the species has Critical status (Black-faced Spoonbill Platalea minor), three are Endangered (Nordmann's GreenshankTringa guttifer, Saunders's Gull Larus saundersi and Chinese EgretEgretta eulophotes), two are Vulnerable (Spoonbill SandpiperEurynorhynchus pygmaeusand Spot-billed Pelican Pelecanus philippensis) and five are Near-threatened (Asian DowitcherLimnodromus semipalmatus, Grey-headed LapwingVanellus cinereus, Black-headed IbisThreskiornis melanocephalus, Painted Stork Mycterialeucocephalaand Japanese Paradise-FlycatcherTerpsiphone atrocaudata). A nature reserve, also listed as a Ramsar area, already exists in the middle of the Delta. The Cua Day Estuary in the southern part of the delta is not included in either the nature reserve or Ramsar area. However, observations of 260 Saunders's Gulls and 41 Black-faced Spoonbills, which represent 9% and 12% of the estimated respective world populations, indicates the international importance of this area. The major threats to the waterbirds using the delta are reclamation of intertidal sand- and mudflats for aquaculture, increased disturbance associated with collection of sea products and hunting. Recommendations are made for future conservation actions.