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Population ecology of the dog-faced water snake Cerberus rynchops at Sungei Buloh Wetland Reserve, Singapore.

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... Prey species that could not be positively identified in the field were photographed at high magnification and sent to a colleague (Lim, KKP pers comm.) for identification. In our review of life history studies of piscivorous species, we were able to obtain dietary data of three other focal organisms, namely the smooth-coated otter (Theng 2011), the Malayan water monitor (Abdur Rashid 2004 ) and the dogfaced water snake (Chim 2009), from which we extracted specific records. All three studies were carried out at the Sungei Buloh Wetland Reserve (1.4467°N, 103.7302°E). ...
... Four species of cichlids were reliably identified from the diet of the smooth-coated otter, the highest dietary diversity of alien species among the four predators compared although the spraint remains did not allow species-level identification for many prey items (Theng 2009). (2000) as one of the worst 100 invasive species globally 2 Likely to occur as newly released individuals, and is not known to be established (see Ng et al. 1993) Of 15 prey identified to species level in the diet of the dog-faced water snake (Chim 2009), six were alien, of which three were cichlids. A common species of estuarine streams and drainage canals (Ng and Tan 2010), the alien Mexican molly (Poecilia sphenops) was one of two dominant prey items for that species based on total biomass, the other which is the native Javanese ricefish (Oryzias javanicus) (Chim 2009) while cichlids only formed a small proportion of its diet. ...
... (2000) as one of the worst 100 invasive species globally 2 Likely to occur as newly released individuals, and is not known to be established (see Ng et al. 1993) Of 15 prey identified to species level in the diet of the dog-faced water snake (Chim 2009), six were alien, of which three were cichlids. A common species of estuarine streams and drainage canals (Ng and Tan 2010), the alien Mexican molly (Poecilia sphenops) was one of two dominant prey items for that species based on total biomass, the other which is the native Javanese ricefish (Oryzias javanicus) (Chim 2009) while cichlids only formed a small proportion of its diet. Three species of alien reptiles (families Agamidae, Emydidae, Trionychidae) and one amphibian (family Ranidae) were identified in the diets of the four predators. ...
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... Four of these species are from the family Homalopsidae, restricted to muddy substrate and estuaries, exhibit a wide range of diets (Voris and Murphy 2002). Cerberus schneiderii is a generalist feeding on fishes and crustaceans (Chim 2009). The other three species are crustacean specialists, usually associate with mud lobster mounds that serve as refuge areas for their prey (Karns et al. 2002). ...
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he Singapore Blue Plan 2018 (hereafter ‘The Blue Plan’) is a proposal for the conservation of marine ecosystems, prepared by members of Singapore society, and submitted to the Government for consideration. It was initiated by marine biologists with academics, volunteers, stakeholders, and concerned citizens. The Blue Plan synthesizes the current state of knowledge for marine environments, reviews relevant legislature and advocates comprehensive sustainable methods to manage this important ecosystem
... Many accounts demonstrate that a species not normally inclined to sidewind will do so when placed on sand, or on a very smooth artificial surface, such as linoleum (e.g., Mosauer 1930;Gray 1946;Gasc 1974;Jayne 1986Jayne , 1988Klauber 1997;Scanlon 2001;details in Supplementary Table S3). Some species sidewind on mud, which may present some of the same challenges as sand due to its granular nature (although wet granular materials behave differently from dry granular materials, so mud likely also differs from sand in interesting ways) (Wall 1919;Bustard 1969;Jayne 1986;Jayne et al. 1988Jayne et al. , 1995Chim 2009; details in Supplementary Table S2). Even among desert species that regularly sidewind in nature, some of them will use sidewinding on sand but switch to other types of locomotion when placed on crushed aggregate (e.g., Echis spp. ...
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