Patch dynamics and temporal dispersal partly shape annual plant communities in ephemeral habitat patches

Oikos ◽  
2017 ◽  
Vol 127 (1) ◽  
pp. 147-159 ◽  
Author(s):  
Lucie Mahaut ◽  
Guillaume Fried ◽  
Sabrina Gaba
Keyword(s):  
Plant Communities ◽  
Patch Dynamics ◽  
Annual Plant ◽  
Habitat Patches ◽  
Ephemeral Habitat ◽  
Temporal Dispersal

scholarly journals Abiotic and biotic resistance to grass invasion in serpentine annual plant communities

Oecologia ◽  
2009 ◽  
Vol 159 (4) ◽  
pp. 839-847 ◽  
Author(s):  
Barbara Marie Going ◽  
Janneke Hillerislambers ◽  
Jonathan M. Levine
Keyword(s):  
Plant Communities ◽  
Biotic Resistance ◽  
Annual Plant ◽  
Grass Invasion

scholarly journals Plant survival in relation to seed size along environmental gradients: a long-term study from semi-arid and Mediterranean annual plant communities

2010 ◽  
Vol 98 (3) ◽  
pp. 697-704 ◽  
Author(s):  
Johannes Metz ◽  
Pierre Liancourt ◽  
Jaime Kigel ◽  
Danny Harel ◽  
Marcelo Sternberg ◽  
...  
Keyword(s):  
Seed Size ◽  
Plant Communities ◽  
Environmental Gradients ◽  
Annual Plant ◽  
Term Study ◽  
Plant Survival ◽  
Long Term Study ◽  
Semi Arid

Competition for microsites during recruitment in semiarid annual plant communities

Ecology ◽  
2018 ◽  
Vol 99 (12) ◽  
pp. 2801-2814 ◽  
Author(s):  
Bertrand R. Boeken
Keyword(s):  
Plant Communities ◽  
Annual Plant

Movement patterns of southern bell frogs (Litoria raniformis) in response to flooding

2008 ◽  
Vol 35 (1) ◽  
pp. 50 ◽  
Author(s):  
Skye Wassens ◽  
Robyn J. Watts ◽  
Amy Jansen ◽  
David Roshier
Keyword(s):  
Movement Patterns ◽  
Weather Conditions ◽  
Flood Frequency ◽  
Resource Utilisation ◽  
Radio Tracking ◽  
Habitat Patches ◽  
Habitat Occupancy ◽  
South Wales ◽  
Ephemeral Habitat ◽  
Full Capacity

Within the semiarid regions of New South Wales, Australia, the endangered southern bell frog (Litoria raniformis) occupies a landscape that is characterised by unpredictable rainfall and periodic flooding. Limited knowledge of the movement and habitat-occupancy patterns of this species in response to flood events has hampered conservation efforts. We used radio-tracking to assess changes in movement patterns and habitat occupancy of L. raniformis (n = 40) over three different periods (November, January and April/May) that coincided with the flooding, full capacity and subsequent drying of waterbodies within an irrigation landscape. We assessed (1) the use of permanent and ephemeral habitats in response to flooding and drying and (2) distances moved, turning angles and dispersion of frogs during wetland flooding, full capacity and drying. Individuals remained in permanent waterbodies in November but had abandoned these areas in favour of flooded ephemeral waterbodies by January. As the ephemeral waterbodies dried, radio-tracked individuals moved back into permanent waterbodies. The movement patterns of radio-tracked individuals were significantly different in the three radio-tracking periods, but did not differ significantly between sexes. Individuals moved significantly greater distances over 24 h, in straighter lines and movements were more dispersed while they occupied ephemeral waterbodies during January than when they occupied permanent waterbodies during November and April/May. Local weather conditions did not influence movement patterns when all three tracking periods were modelled together using a single linear stepwise regression. The dynamic distribution of habitat patches over space and time, combined with changing patterns of resource utilisation and movement of L. raniformis, highlights the importance of incorporating both permanent and ephemeral habitat patches into conservation plans. Reductions in flood frequency and extent of ephemeral wetlands due to modified flooding regimes have the capacity to limit dispersal of this species, even when permanent waterbodies remain unchanged.

Variation in Creosotebush (Larrea tridentata) Canopy Morphology in Relation to Habitat, Soil Fertility and Associated Annual Plant Communities

1997 ◽  
Vol 137 (1) ◽  
pp. 13 ◽  
Author(s):  
Amrita G. De Soyza ◽  
Walter G. Whitford ◽  
Ernesto Martinez-Meza ◽  
Justin W. Van Zee
Keyword(s):  
Soil Fertility ◽  
Plant Communities ◽  
Larrea Tridentata ◽  
Annual Plant

scholarly journals Floral density and co‐occurring congeners alter patterns of selection in annual plant communities*

Evolution ◽  
2020 ◽  
Vol 74 (8) ◽  
pp. 1682-1698 ◽  
Author(s):  
Katherine E. Eisen ◽  
Amy C. Wruck ◽  
Monica A. Geber
Keyword(s):  
Plant Communities ◽  
Annual Plant ◽  
Floral Density
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