About This Project

We are studying a population of moths in an unique oak ecosystem in a coastal barrier island environment to determine the relationship between the moth, its primary larval food plant, and the oak ecosystem it inhabits. This species, previously known only from Central Texas, has somehow evolved to live in a sand dominated coastal environment. Much of the known habitat will transition to Texas Parks & Wildlife management and our research will help in developing a sustainable land use plan.

Ask the Scientists

What is the context of this research?

We are studying the complete life cycle and specifically the egg laying behavior of Peiglers' Buck Moth. Our focus is on the unique adaptations to a coastal habitat. These moths are geographically isolated from the only other known population. Unlike many other species of Buck Moths these moths do not have to deal with snow or freezing temperatures but they do contend with fire and high temperatures. We have recently observed large brush fires in their habitat. We believe that the height at which the eggs have been laid keeps them relatively safe from these periodic brush fires.

The relationship between this Vulnerable Status moth species, fire and the coastal habitat has never been studied in depth - and needs to be profiled to help us protect and preserve the colony.

What is the significance of this project?

The moth species under investigation is currently listed as: "Conservation Status: Vulnerable (NatureServe)." The area that it inhabits is under a change in ownership. We believe that new studies on this unique ecosystem are needed to shape and guide the future plans for an amazing, unique coastal ecosystem. The Nature Conservancy & Texas Parks and Wildlife have purchased a huge tract of habitat and are now formulating their land use plans for the immediate future.

We will be able to offer insight to the supervising agencies. This new Conservation Area will encompass over 40% of the known coastal habitat for this species - so it represents an opportunity to provide guidance on how to best protect the colony while future land use and management plans are in the process of formulation.

What are the goals of the project?

1) Visit the location and survey recently burned areas for intact or recently hatched egg rings. Take additional measurements (height above ground and Branch Diameter) of any egg rings located.

2) We believe that the current larval population will be in a fourth or fifth Instar stage in mid-April and we need to look at the impact that the larva have on the environment - in particular on the larval food plant.

3) Confirm the identity of the oak(s) that is being used as the larval food plant and identify any other local plants that are used as the larva mature.

4) Further our knowledge of the ecosystem and all the biota that it contains by continuing the process of bio-cataloging using the iNaturalist application.