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首页> 外文期刊>Ecological Entomology >Resource discovery in ant communities: do food type and quantity matter?
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Resource discovery in ant communities: do food type and quantity matter?

机译：蚂蚁社区的资源发现：食物的种类和数量重要吗？

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摘要

Omnivorous woodland ant species trade off between the ability to find and behaviourally control food resources. Dominant species can limit the ability of subordinates to harvest certain food items. However, subordinate species, by being faster discoverers, could gain access to such food items by arriving at them first. In this study, we tested the hypothesis that resource-directed discovery occurs in ant communities and that good discoverers preferentially discover high value resources. We did this by measuring time to discovery and the number of discoveries of high and low levels of two resource types, crickets and honey, for species occurring in Texas and Arizona woodland ant communities. Ants discovered resources roughly 10 times faster in Texas than in Arizona. They discovered crickets more rapidly than honey in both communities, but there was no difference in the discovery of different resource levels. We also found that species were not biased in their discovery of different resource types or levels. These results provide indirect evidence that discovery is directed by resource stimuli but that such directedness does not impact interspecific exploitative competition.
机译：杂食性林地蚂蚁物种在寻找和行为控制食物资源的能力之间进行权衡。优势物种会限制下属收获某些食品的能力。但是，从属物种通过更快地发现，可以通过首先到达这些食物来获取这些食物。在这项研究中，我们检验了以下假设：资源导向的发现发生在蚂蚁群落中，而好的发现者优先发现高价值的资源。我们通过测量发现时间以及发现resource和蜂蜜这两种资源类型的高低水平的数量来实现这一目标，Texas和蜂蜜是在德克萨斯州和亚利桑那州的林蚁社区中发生的。蚂蚁在德克萨斯州发现资源的速度大约是亚利桑那州的10倍。在两个社区中，他们发现than的速度都比蜂蜜快，但是发现不同资源水平并没有什么不同。我们还发现，物种在发现不同资源类型或水平方面没有偏见。这些结果提供了间接的证据，表明发现是由资源刺激指导的，但是这种指导性并不影响种间剥削竞争。

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