There is now compelling evidence of a reduction of pollinator richness and density at a
global scale. In this opinion article, we argue that such pollinator decline intensifies pollen …

Climate change will alter natural selection on native plant populations. Little information is
available to predict how selection will change in the future and how populations will …

Abstract Although rarely tested, it is often assumed that interspecific competition results in
the divergence of traits related to resource use. Using a plant‐pollinator system as a model, I …

1 The reproductive output of Shorea siamensis, a widespread dipterocarp tree, was
assessed in relation to disturbance and tree density at three sites in western Thailand during …

Mimulus luteus (Scrophulariaceae) is a perennial herb occurring in the South American
Andes that shows a wide variation in the size and shape of a red spot on the lower lobe of …

The strength and direction of natural selection on floral traits can vary spatially and
temporally because of variation in the biotic and abiotic environment. High spatial variation …

Females of the desert solitary bee Anthophora pauperata collect nectar and pollen almost
exclusively from Alkanna orientalis (Boraginaceae). The bee and plant are found together in …

In this study we examine the hypothesis that divergent natural selection produces genetic
differentiation among populations in plant defensive strategies (tolerance and resistance) …

Nicotiana glauca, a hummingbird pollinated plant, exhibits geographical variation in several
floral traits. We examined whether geographical differentiation occurred for different flower …

Background A hiking trail is one of the major recreational activities that have critical impacts
on wildlife. Wadi Telah in Saint Katherine Protectorate (South Sinai, Egypt)(N 28.568539 …