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Pollinator-mediated selection on a flower color polymorphism in experimental populations of Antirrhinum (Scrophulariaceae).
We quantified pollinator visit behavior, pollen receipt and export, and changes in allele and genotype frequencies from initial Hardy- Weinberg conditions in experimental arrays of two color morphs…
Ant–Aphid Interactions: Are Ants Friends, Enemies, or Both?
This study suggests that ants simultaneously protect and prey upon aphids, suggesting selection to appease ants and to gain protection from ants can both be important forces generating ant–aphid mutualisms.
The relationship between ant-tending and maternal care in the treehopper Publilia modesta
It is concluded that ant-tending provides an ecological context that favors maternal care in this treehopper species and the primary benefit of maternal care is to attract ants while nymphs are small and few in number.
Effects of Aggregation Size and Host Plant on the Survival of an Ant-Tended Membracid (Hemiptera: Membracidae): Potential Roles in Selecting for Generalized Host Plant Use
Test whether presence of ants or aggregation size resulted in variable selection for host use by the generalist membracid Publilia modesta (Uhler) (Hemiptera: Membracidae) that feeds on host species Chrysothamnus viscidiflorus (Hook.) Nutt.
Fitness costs of butterfly oviposition on a lethal non-native plant in a mixed native and non-native plant community
- Mifuyu Nakajima, C. Boggs, S. Bailey, J. Reithel, Timothy Paape
- Environmental ScienceOecologia
- 1 July 2013
It is proposed that the fine-scale spatial structure of the plant community relative to the butterflies’ dispersal ability, combined with the females’ broad habitat use, contributes to the fitness costs associated with the non-native plant and the resulting evolutionary trap.
A trade-off between the frequency and duration of bumblebee visits to flowers
The potential for a trade-offs between these two components of pollinator service exists when visit duration depends on reward quantity; whether the trade-off is realized will depend on variation in nectar production and on whether pollinators forage systematically.
Bottom-up Mediation of an Ant-Membracid Mutualism: Effects from Different Host Plants
Experimental manipulation of the presence of ants in two different years indicated that the existence of ants had a positive effect on nymph numbers on both host plants, Chrysothamnus viscidiflorus and Wyethia spp, but not on WyethIA spp.
Importance of Fertilization of Host Plants to Ant Tending and Growth Rates in Glaucopysche lygdamus (Lepidoptera: Lycaenidae)
The finding that nitrogen addition affected tending rates parallels findings for a very different ant–lycaenid system, and it is suggested that nitrogen availability to host plants may be of general importance to ant-lyceanid interactions.
“How Do We Do This at a Distance?!” A Descriptive Study of Remote Undergraduate Research Programs during COVID-19
A study describes and evaluates remote undergraduate research programs in the life sciences during summer 2020 and indicates that remote REUs are sufficiently positive to further investigate their affordances and constraints, including the potential to scale up offerings, with minimal concern about disenfranchising students.
Short Communications Evidence foranActive DimerofEscherichia coli a-Galactosidage
It is shown here how the chiral stationary phase affects the ability of a chiral “spatially reprograming” to be passed off as a “positive” or “negative”formation.