An extension to the known range of the eastern grey kangaroo Macropus giganteus on Cape York Peninsula.

2005 ◽  
Vol 27 (2) ◽  
pp. 225 ◽  
Author(s):  
EG Ritchie
Keyword(s):  
Arid Regions ◽  
Grey Kangaroo ◽  
Eastern Australia ◽  
Northern Cape ◽  
Cape York ◽  
Open Forests ◽  
Semi Arid

THE eastern grey kangaroo (Macropus giganteus) is one of Australia?s widest-ranging large macropodids, occurring in open forests, woodlands, subalpine woodland, farmland, and semi-arid regions throughout most of eastern Australia (Menkhorst and Knight 2001). However current general accounts (e.g., Poole 1995, Menkhorst and Knight 2001) regard M. giganteus as being absent from the northern Cape York Peninsula.

Taxonomic re-assessment of the Australian and New Guinean green-eyed treefrogs Litoria eucnemis, L. genimaculata and L. serrata (Anura: Hylidae)

Zootaxa ◽  
2010 ◽  
Vol 2391 (1) ◽  
pp. 33 ◽  
Author(s):  
STEPHEN J. RICHARDS ◽  
CONRAD J. HOSKIN ◽  
MICHAEL J. CUNNINGHAM ◽  
KEITH MCDONALD ◽  
STEPHEN C. DONNELLAN
Keyword(s):  
Genetic Relationships ◽  
Molecular Genetic ◽  
New Guinea ◽  
Species Group ◽  
Type Material ◽  
Eastern Australia ◽  
North Eastern ◽  
Northern Cape ◽  
Wet Tropics ◽  
Cape York

The green-eyed treefrogs (Litoria eucnemis species-group) are found throughout New Guinea and some of its offshore islands, and in two geographically separated regions in north-eastern Queensland, Australia. We examine the genetic relationships among populations of the complex from across its range and find that populations fall into two major lineages: 1) specimens referable to L. genimaculata from New Guinea and its offshore islands, and L. exophthalmia, and 2) samples referable to L. eucnemis from New Guinea and northern Cape York, Australia, and two lineages from the Wet Tropics of north-eastern Australia that are currently assigned to L. genimaculata. Based on our molecular genetic analyses, morphological assessment of new collections and re-examination of type material, we retain L. eucnemis as currently recognised for northern Cape York populations but resurrect the name L. serrata for the Wet Tropics populations. The degree of reproductive isolation between the two Wet Tropics lineages is being studied currently and so at this point we refer both to L. serrata. The degree of genetic variation observed in L. genimaculata across New Guinea locations and possible paraphyly with L. exophthalmia suggest the presence of additional undescribed species. Reexamination of type material and collection of new specimens, allow us to reassess the status of several other names currently synonymised with L. eucnemis and L. genimaculata. Our observations support the present synonymy of Hyla rhacophorus with L. eucnemis and we remove Nyctimystes loveridgei from the synonymy of L. genimaculata and place it in the synonymy of L. eucnemis.

BIODIVERSITY OF HALOPHYTES IN SEMI-ARID REGIONS CASE OF ZAHREZ GHARBI AND ZAHREZ CHERGUI (ZAAFRANE-DJELFA) IN ALGERIA

2020 ◽  
Vol 76 (11) ◽  
Author(s):  
Senni Rachida ◽  
De Belair Gerard ◽  
Abdelkrim Hacene
Keyword(s):  
Arid Regions ◽  
Semi Arid

Water Resources Management in the Semi-Arid Central Valley of California

1987 ◽  
Vol 19 (9) ◽  
pp. 97-106
Author(s):  
J. J. Vasconcelos
Keyword(s):  
Resource Management ◽  
Ground Water ◽  
Water Resource ◽  
Water Resource Management ◽  
Arid Regions ◽  
Central Valley ◽  
The United States ◽  
Policy Makers ◽  
Ground Water Resource ◽  
Semi Arid

Hater resource managers in semi-arid regions are faced with some unique problems. The wide variations in precipitation and stream flows in semi-arid regions increase man's dependence on the ground water resource for an ample and reliable supply of water. Proper management of the ground water resource is absolutely essential to the economic well being of semi-arid regions. Historians have discovered the remains of vanished advanced civilizations based on irrigated agriculture which were ignorant of the importance of proper ground water resource management. In the United States a great deal of effort is presently being expended in the study and control of toxic discharges to the ground water resource. What many public policy makers fail to understand is that the potential loss to society resulting from the mineralization of the ground water resource is potentially much greater than the loss caused by toxic wastes discharges, particularly in developing countries. Appropriations for ground water resource management studies in developed countries such as the United States are presently much less than those for toxic wastes management and should be increased. It is the reponsibility of the water resource professional to emphasize to public policy makers the importance of ground water resource management. Applications of ground water resource management models in the semi-arid Central Valley of California are presented. The results demonstrate the need for proper ground water resource management practices in semi-arid regions and the use of ground water management models as a valuable tool for the water resource manager.

scholarly journals Mulching as water-saving technique in dryland agriculture: review article

2019 ◽  
Vol 43 (1) ◽  
Author(s):  
Mohammad Abdul Kader ◽  
Ashutus Singha ◽  
Mili Amena Begum ◽  
Arif Jewel ◽  
Ferdous Hossain Khan ◽  
...  
Keyword(s):  
Arid Regions ◽  
Review Article ◽  
Water Saving ◽  
Future Research ◽  
Agricultural Water ◽  
Plastic Mulch ◽  
Dryland Agriculture ◽  
Crop Cultivation ◽  
Agricultural Water Resources ◽  
Semi Arid

Abstract Agricultural water resources have been limited over the years due to global warming and irregular rainfall in the arid and semi-arid regions. To mitigate the water stress in agriculture, mulching has a crucial impact as a water-saving technique in rain-fed crop cultivation. It is important mainly for preserving soil moisture, relegating soil temperature, and limiting soil evaporation, which affects the crop yield. Mulching has many strategic effects on soil ecosystem, crop growth, and climate. Mulch insulates the soil, helping to provide a buffer from cold and hot temperatures that have a crucial activity in creating beautiful and protected landscapes. This study has accumulated a series of information about both organic and plastic mulch materials and its applicability on crop cultivation. Moreover, future research potentials of mulching with modeling were discussed to quantify water loss in agriculture.

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