Understanding the Indian mainland–island biogeography through plant dispersal mechanism

2018 ◽  
Vol 28 (8-9) ◽  
pp. 2063-2084 ◽  
Author(s):  
Swapna Mahanand ◽  
Mukunda Dev Behera
Author(s):  
Ted J. Case ◽  
Martin L. Cody ◽  
Exequiel Ezcurra

This updated and expanded A New Island Biogeography of the Sea of Cortés, first published nearly 20 years ago, integrates new and broader studies encompassing more taxa and more complete island coverage. The present synthesis provides a basis for further research and exploration in upcoming years of the biologically fascinating Sea of Cortés region. The Gulf region is increasingly being exploited, for its natural resources by way of marine fisheries, and for its stunning natural beauty by way of a burgeoning tourism industry. Further, the region's human population is increasing apace. It is appropriate, therefore, that this volume discusses these evolving circumstances, and the efforts of the Mexican government to regulate and manage them. The new Biogeography includes a section on the conservation issues in the Sea of Cortés, past accomplishments and conservation needs as yet outstanding. This book should be of strong interest to conservation biologists, ecologists, and evolutionary biologists more generally.


2019 ◽  
Vol 46 (9) ◽  
pp. 1901-1911
Author(s):  
Aloïs Robert ◽  
Thierry Lengagne ◽  
Martim Melo ◽  
Vanessa Gardette ◽  
Sacha Julien ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
H. De Kort ◽  
J. G. Prunier ◽  
S. Ducatez ◽  
O. Honnay ◽  
M. Baguette ◽  
...  

AbstractUnderstanding how biological and environmental factors interactively shape the global distribution of plant and animal genetic diversity is fundamental to biodiversity conservation. Genetic diversity measured in local populations (GDP) is correspondingly assumed representative for population fitness and eco-evolutionary dynamics. For 8356 populations across the globe, we report that plants systematically display much lower GDP than animals, and that life history traits shape GDP patterns both directly (animal longevity and size), and indirectly by mediating core-periphery patterns (animal fecundity and plant dispersal). Particularly in some plant groups, peripheral populations can sustain similar GDP as core populations, emphasizing their potential conservation value. We further find surprisingly weak support for general latitudinal GDP trends. Finally, contemporary rather than past climate contributes to the spatial distribution of GDP, suggesting that contemporary environmental changes affect global patterns of GDP. Our findings generate new perspectives for the conservation of genetic resources at worldwide and taxonomic-wide scales.


2016 ◽  
Vol 44 (5) ◽  
pp. 1041-1052 ◽  
Author(s):  
Olivia Dondina ◽  
Valerio Orioli ◽  
Pamela D'Occhio ◽  
Massimiliano Luppi ◽  
Luciano Bani

2015 ◽  
Vol 39 (1) ◽  
pp. 290-293 ◽  
Author(s):  
Elizabeth A. Sinclair ◽  
Renae Hovey ◽  
John Statton ◽  
Matthew W. Fraser ◽  
Marion L. Cambridge ◽  
...  

1972 ◽  
Vol 61 (3) ◽  
pp. 547-558 ◽  
Author(s):  
D. J. Greathead

By means of sticky traps and a suction trap, it was demonstrated on a plot of sugar-cane at Kawanda Research Station, Uganda, that large numbers of crawlers of Aulacaspis tegalensis (Zhnt.) become airborne (up to 10/m3). The numbers increase with wind speed up to about 2·0 m/s and then remain constant, but are depressed by increasing humidity. In laboratory experiments, crawler survival was reduced by high temperatures (30°C) and low humidities (30% r.h.), but some individuals should survive the extreme conditions sometimes experienced if airborne from morning until evening. On hatching, crawlers move upwards and towards the light, but downwards in the dark; movement is inhibited by high humidity. These behaviour responses indicate hat the presence of crawlers in the air is not accidental but a dispersal mechanism. At Arusha Chini, an isolated sugar estate in Tanzania, sticky-trap catches downwind of a windbreak confirmed that airborne dispersal of crawlers is a major source of infestation. It is shown that air currents could have carried crawlers to Arusha Chini from a source on the Kenya coast, 260 km to the east.


Science ◽  
2005 ◽  
Vol 310 (5755) ◽  
pp. 1778-1779 ◽  
Author(s):  
R. S. Thorpe

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