PubMed期刊
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作者:Wilder Shawn M , Meikle Douglas B
来源:[J].Oecologia(IF 3.011), 2005, Vol.144 (3), pp.391-8PubMed
摘要:While many species show positive relationships between population density and habitat patch area, some species consistently show higher densities in smaller patches. Few studies have examined mechanisms that may cause species to have negative density-area relationships. We tested...
作者:Wilder Shawn M , Le Couteur David G , Simpson Stephen J
来源:[J].Age, 2013PubMed
摘要:The disposable soma hypothesis posits a negative correlation between longevity and reproduction, presumably because these aspects of fitness compete for a limited pool of nutrients. However, diet, which varies widely among animals, could affect the availability of key nutrients r...
作者:Wilder Shawn M , Holway David A ...
来源:[J].Ecology(IF 5.175), 2011, Vol.92 (2), pp.325-32PubMed
摘要:Many arthropods engage in mutualisms in which they consume plant-based foods including nectar, extrafloral nectar, and honeydew. However, relatively little is known about the manner in which the specific macronutrients in these plant-based resources affect growth, especially for ...
作者:Wilder Shawn M , Eubanks Micky D
来源:[J].Biology Letters, 2009, Vol.6 (2), pp.177-9PubMed
摘要:We tested whether the carbohydrate and amino acid content of extrafloral nectar affected prey choice by a predatory ant. Fire ants, Solenopsis invicta, were provided with artificial nectar that varied in the presence of carbohydrates and amino acids and were then provided with tw...
作者:Wilder Shawn M , Rypstra Ann L
来源:[J].Oecologia, 2010, Vol.162 (3), pp.617-25PubMed
摘要:Cannibalism is hypothesized to have evolved as a way to obtain a high-quality meal. We examined the extraction of lipid and protein by female wolf spiders, Hogna helluo, during sexual cannibalism of males and predation of crickets. Most food-limited females did not cannibalize ma...
作者:Wilder Shawn M , Rypstra Ann L
来源:[J].The American naturalist, 2008, Vol.172 (3), pp.431-40PubMed
摘要:Sexual cannibalism varies widely among spiders, but no general evolutionary hypothesis has emerged to explain its distribution across taxa. Sexual size dimorphism (SSD) also varies widely among spiders and could affect the vulnerability of males to cannibalistic attacks by female...
作者:Wilder Shawn M , Barnum Thomas R ...
来源:[J].Oecologia, 2013PubMed
摘要:Animals frequently experience resource imbalances in nature. For ants, one resource that may be particularly valuable for both introduced and native species is high-carbohydrate honeydew from hemipteran mutualists. We conducted field and laboratory experiments: (1) to test if red...
作者:Wilder Shawn M , Holway David A ...
来源:[J].Proceedings of the National Academy of Sciences of the United States of America, 2011, Vol.108 (51), pp.20639-44PubMed
摘要:Mutualisms play key roles in the functioning of ecosystems. However, reciprocally beneficial interactions that involve introduced species also can enhance invasion success and in doing so compromise ecosystem integrity. For example, the growth and competitive ability of introduce...
作者:Marcello Gregg J , Wilder Shawn M , Meikle Douglas B
来源:[J].Journal of Animal Ecology, 2007, Vol.77 (1), pp.41-6PubMed
摘要:1. Pulsed food resources are often considered equivalent in their potential impact on the reproduction and population dynamics of consumers, but differences in the attributes of food pulses and their distribution in the landscape may cause differences in their effects. 2. We test...

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