Detecting the effects of introduced species: A case study of competition between Apis and Bombus
Article Abstract:
Data from an experimental test of introduced honey bee (Apis mellifera) impacts on native bumble bees (Bombus spp.) is used to address the question of how well these more commonly and easily measured indices of competition predicted the observed effects on colonies. Findings reveal that observational data on spatial and temporal correlations in particular were both highly variable and did not predict the outcome of experimental study manipulations.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2006
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Snakes don't shrink, but 'shrinkage' is an almost inevitable outcome of measurement error by the experiments
Article Abstract:
Decreasing in body size in snakes up to 20% of their initial size during periods of reduced food availability has induced to speculate whether these shrinkages are adaptive or not and whether they are not in squamate reptiles living in seasonally variable environments. It is found that shrinkage events are just apparent in snakes and are caused by measurement errors by experimenters.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2005
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Why don't small snakes bask? Juvenile broad-headed snakes trade thermal benefits for safety
Article Abstract:
An investigation on whether predation risk constrains thermoregulation in the nocturnal broad-headed snake Hoplocephalus bungaroides is presented. Results suggest that juvenile broad-headed snakes do not bask during autumn due to high risk of avian predation associated with this activity.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2005
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