Species Diversity of Seed-Eating Desert Rodents in Sand Dune Habitats

Ecology ◽  
1973 ◽  
Vol 54 (4) ◽  
pp. 775-787 ◽  
Author(s):  
James H. Brown
Keyword(s):  
Species Diversity ◽  
Sand Dune ◽  
Desert Rodents ◽  
Seed Eating

Resource Utilization and Coexistence of Seed-Eating Desert Rodents in Sand Dune Habitats

Ecology ◽  
1973 ◽  
Vol 54 (4) ◽  
pp. 788-797 ◽  
Author(s):  
James H. Brown ◽  
Gerald A. Lieberman
Keyword(s):  
Resource Utilization ◽  
Sand Dune ◽  
Desert Rodents ◽  
Seed Eating

Population dynamics and environemental changes during natural irruptions of Australian desert rodents.

1994 ◽  
Vol 21 (5) ◽  
pp. 569 ◽  
Author(s):  
M Predavec
Keyword(s):  
Population Dynamics ◽  
Sand Dune ◽  
Temporal Trend ◽  
Time Lag ◽  
High Turnover ◽  
Seed Availability ◽  
Temporal Correlations ◽  
Desert Rodents ◽  
Over Time ◽  
Population Numbers

Populations of Pseudomys hermannsburgensis and Notomys alexis were studied during a 33-month period (January 1991 to September 1993) in a sand-dune habitat in south-western Queensland. Population numbers of both species fluctuated dramatically over time with an approximately 40-fold difference between periods of lowest and highest abundance. Increased numbers were due primarily to an influx of juveniles to the population. A high turnover of individuals in both populations resulted in low rates of recapture. Numbers of both species were correlated positively with an index of rainfall with a time-lag of four months. P. hermannsburgensis showed spatial and temporal correlations with seed availability, whereas N. alexis displayed a strong, but non-significant, temporal trend with seed availability. These data suggest strongly that natural irruptions of Australian desert rodents are triggered by rainfall and possibly rain-induced food availability.

Comparison of Niche-Packing and Community Organization in Desert Rodents in Asia and North-America

1994 ◽  
Vol 42 (4) ◽  
pp. 479 ◽  
Author(s):  
GI Shenbrot ◽  
KA Rogovin ◽  
EJ Heske
Keyword(s):  
Species Diversity ◽  
North American ◽  
Chihuahuan Desert ◽  
Community Organization ◽  
Alpha Diversity ◽  
Mean Annual Precipitation ◽  
Spatial Organisation ◽  
Feeding Modes ◽  
Desert Rodents ◽  
Desert Rodent

We compared patterns of species diversity, locomotory morphology, feeding modes, and spatial organisation for rodent communities in four Asian deserts (Kyzylkum, Gobi, ?Thar, Negev) and one North American (Chihuahuan) desert. Deserts were similar in gamma and alpha diversity. A positive relationship between regional species diversity (and biomass) and mean annual precipitation was found. The Asian deserts showed a greater degree of divergence and specialisation between bipedal and quadrupedal forms. The range of feeding modes was similar in deserts on both continents, but the Negev was the only Asian desert in which granivory was as important as in the Chihuahuan. Temperate Asian desert rodents were organised into spatial guilds, separated primarily by characteristics of the soil and perennial vegetation. North American desert rodent species overlapped more extensively in habitat use. The similarities and differences between these deserts can be explained by their biogeographic histories.

scholarly journals An Experimental Study of Competition Between Seed-eating Desert Rodents and Ants

1979 ◽  
Vol 19 (4) ◽  
pp. 1129-1143 ◽  
Author(s):  
JAMES H. BROWN ◽  
DIANE W. DAVIDSON ◽  
O. J. REICHMAN
Keyword(s):  
Experimental Study ◽  
Desert Rodents ◽  
Seed Eating

Spatial patterns of species diversity in sand dune plant communities in Yucatan, Mexico: importance of invasive species for species dominance patterns

2018 ◽  
Vol 11 (2) ◽  
pp. 157-172 ◽  
Author(s):  
Víctor Parra-Tabla ◽  
Cristopher Albor-Pinto ◽  
Juan Tun-Garrido ◽  
Diego Angulo-Pérez ◽  
Christian Barajas ◽  
...  
Keyword(s):  
Invasive Species ◽  
Species Diversity ◽  
Plant Communities ◽  
Spatial Patterns ◽  
Sand Dune ◽  
Species Dominance ◽  
Dune Plant

Patterns of Species Diversity across Scales and along the Slope on the Ecotone between the Active Sand Dune and the Inter-Dune Lowland in Horqin Sandy Land, China

2013 ◽  
Vol 726-731 ◽  
pp. 4390-4396
Author(s):  
De Ming Jiang ◽  
Xue Hua Li ◽  
Chun Ping Miao ◽  
Quan Lai Zhou ◽  
Toshio Oshida
Keyword(s):  
Species Diversity ◽  
Sand Dune ◽  
Abiotic Factors ◽  
Species Abundance ◽  
Horqin Sandy Land ◽  
Sandy Land ◽  
Grain Sizes ◽  
Succession Process ◽  
Species Richness And Abundance ◽  
Sampling Plot

To better understand the succession process of vegetation restoration from the active sand dune to the inter-dune lowland, species diversity which refers to species richness and abundance across scales and along the slope were studies in Horqin Sandy Land, China. A 0.25 ha square sampling plot, which sampled on the ecotone, was divided into five grain sizes and equal distance intervals along the slope from the top to the bottom. The results showed that both species abundance and richness increased as the grain sizes increased and along the slope, but the decreasing CV values indicated that species diversity gradually vary from heterogeneity to relatively homogeneity. In conclusion, species abundance and richness showed asynchronous changes and their relationship are more closely across scales than along the slope. Except that, more studies on the biotic and abiotic factors interaction concerning the vegetation patterns of sand dune ecosystems should be conducted. These could not only improve our understanding the mechanisms of vegetation invasion and succession, but also be beneficial for vegetation management and biodiversity conservation in semi-arid sand dune ecosystems.

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