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Laba laba penenun-Bola yang tinggal di daerah perkotaan mungkin lebih
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dapat tumbuh lebih besar dan memiliki
peningkatan kemampuan untuk mereproduksi ketika tinggal di daerah perkotaan..............
Orb-weaving spiders living in urban areas may be larger
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.
Results show
that the spiders had smaller bodies in areas with more vegetation cover and
larger bodies in areas associated with urban development, indicated by the
presence of hard surfaces. Additionally, the authors found that the spiders'
reproductive ability, measured by increased ovary weight, may have increased in
higher socioeconomic areas, such as in areas with hard surfaces or leaf litter.
According to the authors, the larger size and increased reproductive capacity
of orb-weaving spiders in urban areas further support the idea that some
species may benefit from habitat changes associated with urbanization.
Story
Source:
The above
story is based on materials provided by PLOS. Note: Materials may be edited
for content and length.
Journal
Reference:
- Elizabeth C. Lowe, Shawn M. Wilder, Dieter F. Hochuli. Urbanisation at Multiple Scales Is Associated with Larger Size and Higher Fecundity of an Orb-Weaving Spider. PLoS ONE, 2014; 9 (8): e105480 DOI: 10.1371/journal.pone.0105480
