Date:
August 20, 2014
Source:
PLOS
Summary:
A common orb-weaving spider may grow larger and have an increased ability to reproduce when living in urban areas.
A common orb-weaving spider may grow larger and have an increased ability to reproduce when living in urban areas, according to a study published August 20, 2014 in the open-access journal PLOS ONE by Elizabeth Lowe from the University of Sydney, Australia and colleagues.
Urbanization may drastically alter the landscape, local climate, and consequently the organisms that inhabit it. Some will no longer have the resources they need to survive in the urban environment, while others may thrive, possibly more so than in their native habitat; one way in which this may be evident is in marked changes in the organism's size. The authors of this study investigated changes in the physical attributes of the orb-weaving spider, commonly found in both urban and natural landscapes, using multiple environmental variables. The researchers quantified the degree of urbanization at multiple sites in Sydney, Australia, and investigated changes in the orb-weaving spider's body size, fat reserves, and ovary weight.
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