Table 7.7         Overall Impact Evaluation to Species of Conservation Interest

Species of Conservation Interest

Construction Phase Impacts

Operation Phase Impacts

Common Name

Scientific Name

Description

Evaluation

Description

Evaluation

Flora

 

 

 

 

 

Incense Tree

Aquilaria sinensis

Individuals of these species fall outside of works areas, no impacts predicted.

No impact.

Individuals of these species fall outside of works areas, no impacts predicted.

No impact.

Small Persimonn

Diospyros vaccinioides

No Impact.

No Impact.

 

 

 

 

 

 

Fauna

 

 

 

 

 

Avifauna

 

 

 

 

 

Grey Heron

Ardea cinerea

Grey Heron recorded from lower PNH River. Impacts anticipated to result from temporary loss of feeding habitats due to river channel construction, and disturbance caused by increased human activity and noisy construction phase activities.

Low.

Following re-establishment, newly constructed drainage channels expected to provide suitable foraging habitat for this species. Impacts would be limited to periodic and temporary disturbance due to maintenance works.

Very Low.

Great Egret

Egretta alba

Great Egret recorded from lower LTT River. Impacts anticipated to result from temporary loss of feeding habitats due to river channel construction, and disturbance caused by increased human activity and noisy construction phase activities.

Low.

Following re-establishment, newly constructed drainage channels expected to provide suitable foraging habitat for this species. Impacts would be limited to periodic and temporary disturbance due to maintenance works.

Very Low.

Little Egret

Egretta garzetta

Little Egret recorded largely from river habitats. Impacts anticipated to result from temporary loss of feeding habitats due to river channel construction, and disturbance caused by increased human activity and noisy construction phase activities.

Low.

Following re-establishment, newly constructed drainage channels expected to provide suitable foraging habitat for this species. Impacts would be limited to periodic and temporary disturbance due to maintenance works.

Very Low.

Cattle Egret

Bubulcus ibis

Cattle Egret recorded from river and marsh habitats. Impacts anticipated to result from permanent loss of small areas of marsh habitat, temporary loss of feeding habitats due to river channel construction, and disturbance caused by increased human activity and noisy construction phase activities.

Low.

Impacts would be limited to loss of small area of marsh habitat, and periodic and temporary disturbance due to maintenance works.

Very Low.

Chinese Pond Heron

Ardeola bacchus

Chinese Pond Heron various habitats within the Assessment Area. Impacts anticipated to result from permanent loss of small areas of marsh habitat, temporary loss of feeding habitats due to river channel construction, and disturbance caused by increased human activity and noisy construction phase activities.

Low.

Following re-establishment, newly constructed drainage channels expected to provide suitable foraging habitat for this species. Impacts would be limited to loss of small area of marsh habitat, and periodic and temporary disturbance due to maintenance works.

Very Low.

Striated Heron

Butorides striatus

Striated Heron recorded from river/stream habitats within the Assessment Area. Impacts anticipated to result from temporary loss of habitat due to river channel construction, and disturbance caused by increased human activity and noisy construction phase activities.

Low.

Following re-establishment, newly constructed drainage channels expected to provide suitable foraging habitat for this species. Impacts would be limited to periodic and temporary disturbance due to maintenance works.

Very Low.

Black-crowned Night Heron

Nycticorax nycticorax

Night Heron recorded from estuarine and downstream reaches of the rivers. Impacts anticipated to result from temporary loss of feeding habitats due to river channel construction, and disturbance caused by increased human activity and noisy construction phase activities.

Low.

Following re-establishment, newly constructed drainage channels expected to provide suitable foraging habitat for this species. Impacts would be limited to periodic and temporary disturbance due to maintenance works.

Very Low.

Common Teal

Anas crecca

Teal recorded from LTT River. Impacts anticipated to result from temporary loss of feeding habitats due to river channel construction, and disturbance caused by increased human activity and noisy construction phase activities.

Low.

Following re-establishment, newly constructed drainage channels expected to provide suitable foraging habitat for this species. Impacts would be limited to periodic and temporary disturbance due to maintenance works.

Very Low.

Black Kite

Milvus migrans

Black Kite recorded soaring over the Assessment Area. Negligible impact anticipated.

Negligible.

No impact.

No Impact.

White-throated Kingfisher

Halcyon smyrnensis

Kingfishers recorded from various habitats within the Assessment Area. Impacts anticipated to result from permanent loss of small areas of marsh habitat, temporary loss of feeding habitats due to river channel construction, and disturbance caused by increased human activity and noisy construction phase activities.

Low.

Following re-establishment, newly constructed drainage channels expected to provide suitable foraging habitat for this species. Impacts would be limited to periodic and temporary disturbance due to maintenance works.

Very Low.

Pacific Swift

Apus pacificus

Recorded flying over Assessment Area. No impact predicted.

No Impact

Recorded flying over Assessment Area. No impact predicted.

No Impact

Zitting Cisticola

Cisticola juncidis

Zitting Cisticola recorded from Luk Tei Tong Marsh. Impacts anticipated to result from temporary and permanent loss of habitat due to channel construction, and disturbance caused by increased human activity and noisy construction phase activities

Low-moderate.

Impacts would be limited to loss of small area of marsh habitat, and periodic and temporary disturbance due to maintenance works.

Very Low.

Plumbeous Redstart

Rhyacornis fuliginosus

Plumbeous Redstart recorded from PNH River. Impacts anticipated to result from temporary loss of feeding habitat due to river channel construction, and disturbance caused by increased human activity and noisy construction phase activities.

Low.

Following re-establishment, newly constructed drainage channels expected to provide suitable foraging habitat for this species. Impacts would be limited to periodic and temporary disturbance due to maintenance works.

Very Low.

Yellow-breasted Bunting

Emberiza aureola

Buntings recorded from Luk Tei Tong Marsh area. Impacts anticipated to result from temporary and permanent loss of feeding habitats due to channel construction, and disturbance caused by increased human activity and noisy construction phase activities.

Low-moderate.

Impacts would be limited to small loss of marsh habitat, and periodic and temporary disturbance due to maintenance works.

Very Low.

Yellow-billed Grosbeak

Eophona migratoria

Grosbeak recorded flying over the Assessment Area. Impacts expected to be minor.

Very Low.

No impact.

No Impact.

White-shouldered Starling

Sturnus sinensis

Starlings recorded breeding in the disused watchtowers. Potential construction phase disturbance to breeding birds would largely be avoided, but is still considered a potentially low-moderate impact.

Moderate.

Impacts would be limited to periodic and temporary disturbance due to maintenance works.

Very Low.

 

 

 

 

 

 

Herpetofauna

 

 

 

 

 

Chinese Bullfrog

Rana rugulosa

Potential direct impact to this species during construction phase..

Moderate-high

Impacts to Luk Tei Tong Marsh would result in loss of small area of habitat for this species, although newly constructed LTT (2) Channel would provide partial compensation for habitat loss.

Low-moderate

Romer’s Tree Frog

Philautus romeri

Potential direct impact to this species during construction phase.

High

Impact to 0.13ha woodland habitat would be permanent, although the affected area is small in the context of similar habitats in the Mui Wo area as a whole.

Very Low

 

 

 

 

 

 

Fish

 

 

 

 

 

Flagtail

Kuhlia marginata

Potential direct impact to these species’ during construction phase. Potential disturbance during construction phase due to habitat loss and increased sedimentation.

Moderate-high

Following re-establishment, newly constructed drainage channels expected to provide suitable habitats for these fish species. Impacts would be limited to periodic and temporary disturbance due to maintenance works.

Low

Predaceous Chub

 

Parazacco spilurus

Low-moderate

Low