Quantifying reproductive state and predator effects on copepod motility in ephemeral ecosystems
Journal of Arid Environments, ISSN: 0140-1963, Vol: 168, Page: 59-61
2019
- 2Citations
- 9Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
Ephemeral wetlands in arid environments are unique ecosystems with atypical trophic structuring, often dominated by invertebrate predation. Copepod behavioural traits and vulnerabilities to predation can vary substantially according to reproductive status. Gravid female copepods may be more vulnerable to predation due to reduced escape speeds or higher visibility to predators. Here, we quantify how reproductive status modulates horizontal motility rates of the predatory ephemeral pond specialist copepod Lovenula raynerae, and the responsiveness of the copepod to predator cues of the notonectid Anisops debilis. Males exhibited significantly higher motility rates than gravid female copepods, however chemical predator cues did not significantly influence activity rates in either sex. The lack of responsiveness to predator cues by specialist copepods in ephemeral wetlands may result from a lack of predation pressure in these systems, or due to time stress to reproduce during short hydroperiods. In turn, this could increase predation risk to copepods from externally-recruited top predators in ephemeral wetlands, and potentially contribute to the development of skewed sex ratios in favour of females.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0140196318318421; http://dx.doi.org/10.1016/j.jaridenv.2019.05.010; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85066300146&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0140196318318421; https://dx.doi.org/10.1016/j.jaridenv.2019.05.010
Elsevier BV
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