First, a little bit about biology and the annual life cycle
The monarch’s annual lifecycle is a really marvelous and multifaceted journey – it can be thought of as a multigenerational relay race.
Monarch butterflies, just like other lepidopterans, metamorphosis from caterpillar to butterfly. The big thing that sets them apart is the migration they make annually. (Although there are many other species of moths and butterflies, and other insects as well that migrate – the monarch is arguably the most well recognized example http://texasento.net/migration.htm).
Temporal cues and an innate determination drive these ambitions fliers to travel as far north as the Canadian border. In the search for milkweed and favorable temperatures – possibly to avoid disease pressures – monarchs fly north to reproduce and recolonize across North America each year.
They leave overwintering grounds in Mexico in early spring. Along their route the monarchs will mate and reproduce. Their lives are lived within a short couple weeks, and their offspring will continue the migration northwards in search of food and milkweed.
When the seasons shift in late summer and early fall, the last generation of monarchs will begin a southbound journey, instinctively traveling to wintering sites in Mexico (there are a few populations that overwinter in California and Florida – but the large majority are thought to return to Mexico). This generation will be responsible for making the longest trek of the migration to wintering grounds. These monarchs enter reproductive diapause – the state where the body will temporarily pause reproduction – until the following spring. These monarchs will spend the winter roosting in trees in Mexico until spring when they will take up the first leg of the relay north.
This last generation from the previous year now makes up the first generation of the present year – and will pass the baton on to their offspring as the cycle starts anew.
Monarchs are traveling across New Jersey May through October. There are plenty of simple ways you can help protect this iconic species.
- Plant native species of flowering plants – monarchs and other insects (like bees) rely on a healthy diversity of nectar sources. Planting a wildflower garden is a quaint, ecological-friendly way to create habitat, and not to mention, make less work watering and money spent purchasing plants. Check out the Native Plant Society or Jersey Friendly Yards to get started. http://npsnj.org/ http://www.jerseyyards.org/
- Share this article, talk about environmental issues, and get informed. Show your support and share your concern for the wellbeing of this (and other) species!
- Rear monarchs. At home or in classrooms, rearing wild monarchs and releasing them is a rewarding and educational way to contribute.
- Participate in tagging and monitoring projects. Monitoring and tagging projects take place in the summer and fall for New Jersey Monarchs. You can also contribute simply by reporting your sightings on these websites.
- United States Habitat Creation Project. You can help by being a sponsor or by creating habitat yourself and here’s how:
- Make a donation to help us get the word out
- Build your own butterfly sanctuary or support the efforts of someone else or support the effort to maintain an informative blog website with photos and success stories. Of course, you can do all three and be a monarch super hero
- You could make a donation to help us create a United States pin map showing every location of new habitat creation with a blog website to show the accomplishments
Your donation will help set wheels in motion for establishing a co-operative effort to prevent the extinction of this most amazing creature.