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Featured researches published by Peter J. F. Davie.


The Australian zoologist | 2014

Freshwater crabs occupying tropical north Queensland coastal creeks

Nathan Waltham; Jane M. Hughes; Peter J. F. Davie

Balancing coastal urban development with species conservation and habitat protection can be challenging for managers especially where good quality ecological data is lacking. Primary freshwater crabs (Austrothelphusa species) of the family Gecarcinucidae (formerly Parathelphusidae) that occupy inland creek systems are also present in small coastal areas. In coastal regions, habitat loss in response to urbanisation and transformation of natural water channels to concrete drainage lines is a major threat to coastal crab populations. We provide data showing that one species, A. transversa, still exists in natural creek lines in Townsville, but not in engineered creek channels a little further downstream in some cases. Continued urbanisation means that populations will be under threat as the city continues to expand, transforming further natural creek lines to engineered concrete channels. Whether the absence of crabs in urban channels is due to increased predation from fish present in the permanent water (including noxious Oreochromis mossambicus), water chemistry differences, increased competition for food and shelter, or simply because this species cannot burrow in concrete channels to complete important lifecycle stages, warrants further investigation. Evidence is also provided that A. transversa coexists in natural waters with another freshwater crab species, the varunid, (Varuna litterata). The importance of management strategies for both species is discussed, particularly under continuing habitat squeeze with expanding coastal development.


Crustaceana | 2009

A New Genus and Species of Macrophthalmidae (Brachyura, Ocypodoidea) from the Northern Territory, Australia

Peter J. F. Davie

A new genus and new species of euryhaline marine macrophthalmid crab, Lutogemma sandybrucei, is described from Arnhem Land, Northern Territory, Australia. Lutogemma can be distinguished from other macrophthalmid genera by its unique mouthparts, apparently modified for suspension feeding; the bulging pterygostome; its narrow sub-cylindrical walking legs with recurved dactyli on the last pair; the male abdomen leaving a gape into the sterno-abdominal cavity laterally at base of sternite 4; and a characteristic male first gonopod. Eine neue Gattung und neue Art euryhaliner, mariner macrophthalmider Krabben, Lutogemma sandybrucei, wird von Arnhem Land, Northern Territory, Australien beschrieben. Lutogemma kann von anderen macrophthalmiden Gattungen durch die Kombination folgender Merkmale unterschieden werden: einzigartige, wahrscheinlich ans Filtrieren angepasste Mundwerkzeuge; aufgewolbtes Pterygostom; schmale subzylindrische Schreitbeine mit zuruckgekrummten Dactyli am letzten Paar; Abdomen des Mannchens mit einer zur sterno-abdominalen Hohle fuhrenden Aussparung lateral der Basis des vierten Sterniten; charakteristischer erster Gonopod des Mannchens.


Crustaceana | 2017

Perisesarma tuerkayi , a new species of mangrove crab from Vietnam (Decapoda, Brachyura, Sesarmidae), with an assessment of its phylogenetic relationships

Adnan Shahdadi; Peter J. F. Davie; Christoph D. Schubart

A new species of Perisesarma, P. tuerkayi, is described from mangroves of Tan Thoi Island, southern Vietnam. Morphologically, the new species differs most significantly from congeners by the tuberculation pattern of the chelar dactylus, its unique G1 morphology, an unusually large maximum body size, and relatively short and broad ambulatory legs. Genetically, P. tuerkayi n. sp. is markedly divergent from other congeneric species, both in mitochondrial and nuclear DNA. It is the fifth species of Perisesarma reported from Vietnam.


Zootaxa | 2013

A review of Chiromantes obtusifrons (Dana, 1851) (Decapoda: Brachyura: Sesarmidae), with descriptions of four new sibling-species from Christmas Island (Indian Ocean), Guam and Taiwan

Peter J. F. Davie; Peter K. L. Ng

The identity of Chiromantes obtusifrons (Dana, 1851), previously considered widespread in the tropical West Pacific region to the eastern Indian Ocean, is revised and found to be a species-complex. Chiromantes obtusifrons is now considered endemic to the Hawaiian Is., and four new species are described from Guam, Taiwan and Christmas Island. Two species live sympatrically in Taiwan. Species separation is based on carapace and frontal shape and granulation, leg proportions, abdominal somite proportions, and distinctive live colouration.


Invertebrate Systematics | 2018

Systematics and phylogeography of the Australasian mangrove crabs Parasesarma semperi and P. longicristatum (Decapoda : Brachyura : Sesarmidae) based on morphological and molecular data

Adnan Shahdadi; Peter J. F. Davie; Christoph D. Schubart

Abstract. Parasesarma semperi (Bürger, 1893) was first described from Bohol in the Philippines and is considered to be widely distributed in Southeast Asia. Parasesarma longicristatum (Campbell, 1967) was originally described as a subspecies of P. semperi from Queensland, Australia, and later recognised as a full species. In this study, we re-examine specimens of the two species from across their entire geographic range using genetic markers, a morphometric analysis, and traditional morphological characters. Previous taxonomic species diagnoses were found to be unreliable, but morphometric principle component analyses consistently separate the two species, with the length to width ratio of the propodus of the fourth pereiopod being of particular importance. Genetic data corresponding to the mitochondrial genes COI, ND1 and 16S confirmed a close sister relationship between the two species, forming reciprocally monophyletic groups. Both species have high haplotype diversities and high intraspecific gene flow.


Archive | 2010

A REVISION OF THE PORTUNUS PELAGICUS (LINNAEUS, 1758) SPECIES COMPLEX (CRUSTACEA: BRACHYURA: PORTUNIDAE), WITH THE RECOGNITION OF FOUR SPECIES

Joelle C. Y. Lai; Peter K. L. Ng; Peter J. F. Davie


Zootaxa | 2005

A revision of the genus Pachygrapsus Randall, 1840 (Crustacea: Decapoda: Brachyura, Grapsidae), with special reference to the Southwest Pacific species

Joseph Poupin; Peter J. F. Davie; J.-C. Cexus


Zootaxa | 2007

A revision of the shovel-nosed lobsters of the genus Thenus (Crustacea: Decapoda: Scyllaridae), with descriptions of three new species

T. E. Burton; Peter J. F. Davie


Hydrobiologia | 2009

Genetic evidence for the recognition of two fiddler crabs, Uca iranica and U. albimana (Crustacea: Brachyura: Ocypodidae), from the northwestern Indian Ocean, with notes on the U. lactea species-complex

Hsi-Te Shih; Ehsan Kamrani; Peter J. F. Davie; Min-Yun Liu


Archive | 2015

Anatomy and functional morphology of Brachyura

Peter J. F. Davie; Danièle Guinot; Peter K. L. Ng

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Peter K. L. Ng

National University of Singapore

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Hsi-Te Shih

National Chung Hsing University

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Danièle Guinot

National Museum of Natural History

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Peter K. L. Ng

National University of Singapore

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Dwi Listyo Rahayu

Indonesian Institute of Sciences

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Benjamin Mos

Southern Cross University

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