Ups and Downs in Pollinator Populations: When is there a Decline?
نویسنده
چکیده
Introduction Methods Biological background Variability measures Trends and perturbations Euglossine census techniques and evaluation Results Community comparisons Long-term trends Simultaneous sampling and evaluation of census techniques Discussion Bee communities over time ENSO and the bees Euglossine sampling techniques and long-term sampling strategies Responses to this Article Acknowledgments Literature Cited Appendix 1 Appendix 2 Appendix 3 Appendix 4
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تاریخ انتشار 2008