Pollen viability is known to decline, sometimes rapidly, with age and exposure to
environmental stresses. Because of the potential impact of nongenetic factors on the ability …

We evaluated the influence of the reproductive ecology on low recruitment of sexually
derived progeny observed in Opuntia rastrera Weber in the Southern Chihuahuan Desert, in …

Pollinating seed‐consuming interactions are rare, but include fig–fig wasp and yucca–yucca
moth interactions, both of which are thought to be coevolved. Conditions favoring such …

Species interactions are a major source of adaptive radiation. In mutualisms, such
diversification can take the form of evolution of parasites that exploit the resources needed …

We investigated pollen dispersal in an obligate pollination mutualism between Yucca
filamentosa and Tegeticula yuccasella. Yucca moths are the only documented pollinator of …

Obligate pollination mutualisms have been central to our understanding of the ecology and
evolution of mutualisms. Although usually viewed as pairwise interactions, obligate …

Insect larvae such as those of yucca moths that feed on small, patchily distributed food items
often face an elevated risk of intraspecific competition or cannibalism. For this reason …

For over 100 years the association between Yucca (Agavaceae) and Tegeticula
(Lepidoptera: Incurvariidae) has been accepted as a quintessential example of an obligate …

We observed bouts of oviposition/pollination/pollen collection behaviour by the females of
two species of yucca moths associated with Yucca kanabensis. Some aspects of the bouts …

The yucca moth Tegeticula yuccasella is the sole pollinator of Yucca elata, and relies on
yucca fruits to complete its life cycle. A high percentage of pollinated flowers aborts, killing …