Category Archives: Wildflowers

Good News to Share!

Dear Friends of Beauty on the Wing,

I hope you are all doing well and fortunate enough to have good health.

After a brief cold snap we are having a beautiful Indian Summer here on Cape Ann. I hope you have the opportunity to get outdoors today and enjoy nature. Bird and butterfly migrations are well underway. At Parker River National Wildlife Refuge, rangers shared that they have never seen a migration such as this year’s, with over 180 species sited at the refuge this past week. The birds appear to have benefitted from decreased human activity over the past seven months. On the other hand, the Atlantic Coast Monarch migration seems stalled or nonexistent. Perhaps we will have a late, great migration as we did several years ago. And there are some positive signs for the butterflies, especially through the Mississippi Flyway as Monarch Waystations further north, such as the one at Point Pelee have been reporting that the Monarch migration is doing well. I’ve seen Monarchs migrating through Cape Ann in good numbers as late as the second week of October, so we’ll be ever hopeful.

Good news to share -the page for Beauty on the Wing is up on American Public Television World Wide! Here is the link, including information with a link on how to license Beauty. The page looks great and the line-up of films, stellar. We are so honored to be included in this fine catalogue of Science, Health, and Nature Programming!

And more super good news to share – Beauty on the Wing has been accepted to the Boston International Kids Film Festival! This is an outstanding festival for kids, by kids, and about kids and is organized by a dynamic group of women: Laura Azevedo, Kathleen Shugrue, and Natalia Morgan. A complete list of films for the 2020 BIKFF will be posted in the upcoming days, along with information on how the festival will be organized for safe viewing during the pandemic.

I have been following (or become enchanted is a more accurate description) a small flock of Bobolinks. Click here to read a story posted on my website: Bobolinks Amongst the Sunflowers. While reading about Bobolinks, I came across a link to The Bobolink Project, a truly worthwhile organization. The Bobolink Project habitat conservation plan not only helps Bobolinks, but many species of declining grassland birds.

The sun is coming out and the temperature still summery. Stay well and enjoy the day!

Warmest wishes,
Kim

TINY KALEIDOSCOPE OF MONARCHS PASSING THROUGH

Winds from the north brought a tiny kaleidoscope of Monarchs to our shores over the weekend. Isn’t that a wonderful official word for a group of butterflies! A bunch of caterpillars is officially called an army.

Will there be more waves of Monarchs passing through? Time will tell. Along the Atlantic Coast Flyway, we’ve seen far fewer butterflies so far this year, especially when compared to last year’s numbers. Keeping my hopes up though 🙂

Dancing Monarch

Soaring

BEAUTY ON THE WING OFFICIAL SELECTIONS FOR THE WILDLIFE CONSERVATION AND NATURE WITHOUT BORDERS INTERNATIONAL FILM FESTIVALS

NEW STUDY BY MONARCH WATCH CHIP TAYLOR REFUTES “MIGRATION MORTALITY” AS THE MAJOR REASON FOR THE DECLINE OF THE MONARCHS

Female Monarch depositing egg on Common Milkweed (Asclepias syriaca)

Evaluating the Migration Mortality Hypothesis Using Monarch Tagging Data

Frontiers in Ecology and Evolution

August 7, 2020

Authors:

Orley Talor, Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS, United States

John M. Pleastant, Department of Ecology, Evolution and Organismal Biology, Iowa State University, Ames, IA, United States

Ralph Grundel, U.S. Geological Survey, Great Lakes Science Center, Chesterton, IN, United States

Samulel D. Pecoraro, U.S. Geological Survey, Great Lakes Science Center, Chesterton, IN, United States

James P. Lovett, Monarch Watch, Kansas Biological Survey, University of Kansas, Lawrence, KS, United States

Ann Ryan, Monarch Watch, Kansas Biological Survey, University of Kansas, Lawrence, KS, United States

The decline in the eastern North American population of the monarch butterfly population since the late 1990s has been attributed to the loss of milkweed during the summer breeding season and the consequent reduction in the size of the summer population that migrates to central Mexico to overwinter (milkweed limitation hypothesis). However, in some studies the size of the summer population was not found to decline and was not correlated with the size of the overwintering population. The authors of these studies concluded that milkweed limitation could not explain the overwintering population decline. They hypothesized that increased mortality during fall migration was responsible (migration mortality hypothesis). We used data from the long-term monarch tagging program, managed by Monarch Watch, to examine three predictions of the migration mortality hypothesis: (1) that the summer population size is not correlated with the overwintering population size, (2) that migration success is the main determinant of overwintering population size, and (3) that migration success has declined over the last two decades. As an index of the summer population size, we used the number of wild-caught migrating individuals tagged in the U.S. Midwest from 1998 to 2015. As an index of migration success we used the recovery rate of Midwest tagged individuals in Mexico. With regard to the three predictions: (1) the number of tagged individuals in the Midwest, explained 74% of the variation in the size of the overwintering population. Other measures of summer population size were also correlated with overwintering population size. Thus, there is no disconnection between late summer and winter population sizes. (2) Migration success was not significantly correlated with overwintering population size, and (3) migration success did not decrease during this period. Migration success was correlated with the level of greenness of the area in the southern U.S. used for nectar by migrating butterflies. Thus, the main determinant of yearly variation in overwintering population size is summer population size with migration success being a minor determinant. Consequently, increasing milkweed habitat, which has the potential of increasing the summer monarch population, is the conservation measure that will have the greatest impact.

Introduction

Since the late 1990s, the monarch butterfly, Danaus plexippus, population has declined significantly based on measurements made at the Mexican overwintering grounds (Brower et al., 2011; Semmens et al., 2016). Identifying the cause or causes of the decline is important in order to focus conservation measures appropriately. Two explanations for the decline in the size of the overwintering population dominate the literature. The first, known as the “milkweed limitation” hypothesis, posits that the decline in the number of milkweed host plants in the major summer breeding area in the Upper Midwest of the U.S. (Figure 1) has led to a reduction in the size of the migratory population (Pleasants et al., 2017). The second, known as the “migration mortality” hypothesis, posits that the resources and conditions during the fall migration have declined resulting in an increase in mortality during the migration and a decline in the overwintering population (Agrawal and Inamine, 2018).

Figure 1. All wild-caught butterflies tagged from north of 40° latitude and east of 100° longitude were included in the study. This area includes the region we are calling the Midwest, encompassing the area from 40 to 50° latitude and 80 to 100° longitude (outlined in red) and the region we are calling the Northeast, encompassing the area from 40 to 50° latitude and 65 to 80° longitude (outlined in blue). What we are calling the Total Area is the Midwest and Northeast combined. The NDVI values (Saunders et al., 2019) come from the region that encompasses the area from 30 to 40° latitude and 90 to 105° longitude (outlined in green). The dark blue square indicates the location of the overwintering colonies. Butterflies were tagged in other sectors besides the Midwest and Northeast but those data are not included in this study.

The milkweed limitation hypothesis is supported by data showing that in the early 2000s the majority of monarch production came from common milkweed, Asclepias syriaca, in corn and soybean fields in the Midwest (Oberhauser et al., 2001) and that the abundance of those milkweeds declined precipitously due to glyphosate herbicide use in those fields (Pleasants and Oberhauser, 2013; Flockhart et al., 2015; Pleasants et al., 2017; Thogmartin et al., 2017a; Saunders et al., 2018). The loss of the milkweeds from corn and soybean fields began in the late 1990s with the adoption of glyphosate-tolerant crops. Milkweeds had been nearly eliminated from these fields by 2006 (Pleasants, 2017). During this period, an estimated 71% of the monarch production potential of milkweeds on the Midwest landscape was eliminated, amounting to 25 million hectares of agricultural habitat that no longer had milkweeds (Pleasants, 2017). The subsequent decrease in the availability of milkweed is thought to have limited the size of the summer breeding population. Support for this hypothesis comes from the pattern of decline in milkweed availability that parallels the decline in the size of the overwintering population (Pleasants et al., 2017). Further support comes from the strong correlation between yearly late summer Midwest monarch egg production and yearly overwintering population size (Pleasants and Oberhauser, 2013; Pleasants et al., 2017).

READ MORE HERE

“BEAUTY ON THE WING” AT THE NEW HAVEN DOCUMENTARY FILM FESTIVAL!

I am so excited to share that the New Haven Documentary Film Festival begins on Tuesday the 18th. Because of the pandemic, much of the festival is online. Beauty on the Wing will begin airing at 11am on the 21st. There is also an interview about the making of Beauty on the Wing with myself and Karyl Evans.

Very unfortunately  and yet another consequence of the pandemic, the films in the program are geoblocked, which means they can only be viewed in Connecticut. Not to worry though, as soon as it is safe, we will have a local premiere and I am very much looking forward to that!

For any of my readers in Connecticut, if you are interested in purchasing a ticket, please GO HERE

To learn more about the New Haven Documentary Film Festival, click here.

See the NHdocs 2020 trailer here (with lots of clips from Beauty on the Wing!) –

Beauty on the Wing Movie Poster

Version two of Monarch movie poster, with laurels!

BEAUTY ON THE WING ACCEPTED TO THE NEW HAVEN DOCUMENTARY FILM FESTIVAL!

Overjoyed Beauty on the Wing has been accepted to the New Haven Documentary Film Festival!

2019 Honors Filmmaker

TWELVE NATIVE MILKWEEDS

Did you know that there are over two hundred species of milkweed (Asclepias) found around the world? Seventy different species are native to North America.

Milkweeds, as most know, are the host plant for Monarch Butterflies. A host plant is another way of saying caterpillar food plant. Monarchs deposit eggs on milkweed plants. Some milkweeds are more productive than other species. For the Northeast region, the most productive milkweed is Common Milkweed (Asclepias syriaca). The second most productive is *Marsh Milkweed (Asclepias incarnata). What is meant by productive? When given a choice, the females choose these plants over other species of milkweed and the caterpillars have the greatest success rate. In our own butterfly garden and at at my client’s habitat gardens, I grow both side-by-side. The females flit from one plant to the next, freely depositing eggs on both species.

This fun chart shows some of the most common species of milkweeds found in North American gardens. *Swamp Milkweed is another common name for Marsh Milkweed.

 

FRIENDS CHECK OUT THIS SUPER INTERESTING AND FAMILY ORIENTED ZOOM WEBINAR I AM PARTICIPATING IN, ALONG WITH WITH JOHN NELSON AND MARTIN RAY

Save the date for the Zoom event “Try Birding in Your Own Backyard” with fellow guests Martin Ray and John Nelson, moderated by Eric Hutchins and hosted by Literacy Cape Ann.

So very much looking forward to participating and so very honored to be asked.

Try birding in your backyard!
Zoom in for something fun on summer solstice eve!
Three of our favorite chroniclers of birds and nature share birding tips and experiences via Zoom and all are invited. Literary Cape Ann presents authors/naturalists John Nelson, Kim Smith and Martin Ray on Friday, June 19, from 6:30 to 7:30 for a lively talk the family will enjoy. Learn ways not just to observe birds but to capture your experience with birds via blogs, journals, photos or sketches. Make some popcorn, gather your family and join us.

Check in with the Literary Cape Ann Facebook page on June 19 for the Zoom link.

EXCERPT FROM MONARCH FILM “MONARCH BUTTERFLIES MATING” AND WHY WE PLANT NATIVE WILDFLOWER HABITAT GARDENS!

An excerpt from the forthcoming film, Beauty on the Wing: Life Story of the Monarch Butterfly, shows three of the wildflowers found in our gardens, meadows, and marshes that attracts Monarchs (along with myriad species of other pollinators).

Plant the two milkweeds listed below and you, too, will have Monarchs mating in your garden!

Featuring:

Seaside Goldenrod (Solidago sempervirens) that supports southward migrating Monarchs.

Marsh Milkweed (Ascleipias incarnata), one of the milkweeds most readily used by ovipositing female Monarchs.

Common Milkweed (Asclepias syriaca). A study published last year that shows Common Milkweed is THE milkweed for Monarchs!

Music by Jesse Cook