Wednesday, July 23, 2014
A guest post by Scott Maxham
Last week I was out clearing Japanese knotweed from the riverside. Clearing knotweed can be a daunting task. It takes over large areas and deprives other plants of sunlight. While taking a much needed water break, a few feet away from the knotweed patch, I found a spiky surprise. This black red spotted caterpillar looked a bit menacing with the numerous spikes, but I was feeling adventurous and let him crawl into my hands. This caterpillar seemed ginormous after working with the tiny cecropia caterpillars we have been raising at the Nature Center.
Back at the Center Center Chip and I determined that I found a Mourning Cloak Caterpillar. Chip agreed that it was a big caterpillar and would probably be looking to pupate in the near future. Sure enough the next day we found the mourning cloak hanging upside down from the container it now calls home. If you’re interested you can see the mourning cloak pupae here at the Nature Center in our critter room.
The mourning cloak butterfly is one of the first to be seen in the spring. This is because it overwinters as an adult butterfly and does not migrate. They find safe spots in trees or logs to overwinter. The butterfly hibernates and when spring arrives the mourning cloak is ready to find a mate. The mourning cloak is unique in that it remains an adult butterfly for 10 long months. This is much longer than most butterflies live. Most butterflies will live for about a month. Even the migrating monarch butterfly will live a shorter life, usually around 7 to 8 months.
|Photo by Jo Ann Poe-McGavin|
All these caterpillars have been a warm-up for the rapidly approaching Live Caterpillar Day at NBNC. This Saturday, July 26, between 11am and 4pm Sam Jaffe from the Caterpillar Lab will be coming to the Nature Center to show off his wonderful caterpillars. If you can’t make it to caterpillar day or can’t wait until Saturday to see caterpillars you can again stop by the critter room at NBNC. The cecropia caterpillars are plentiful and have grown to be much more colorful. Hope to see you Saturday at Caterpillar Day!
Friday, July 11, 2014
Last week campers in grades 5th through 8th joined us for a week of scientific research during NBNC's Summer Scientists camp. We joined a different researcher in the field every day as we learned their methodologies and aided them in their studies.
|Sorting BMIs into ice cube trays|
We began the week by heading to the Dog River with the UVM Watershed Alliance for some water quality testing. After testing for dissolved oxygen, phosphorus, and other chemical and physical properties, we cast our nets for some Benthic Macro Invertebrates (river and lake bottom dwelling bugs). Placing our nets firmly on the bottom of the river, we reached in and began rubbing rocks with our hands on the upstream side of the open nets, hoping to dislodge some critters, which would then be carried by the current into the net. With many pollution sensitive species such as stonefly and dragonfly larvae combined with favorable chemical and physical test results, we concluded that section of the Dog River was indeed healthy. Upon our return to the nature center, we dipped our nets one final time along the bend in the North Branch River before heading home.
|Hellgrammite found in North Branch River|
|Camper holding a baby wood turtle|
Day 2 was spent wading in the Worcester section of the North Branch River with local wood turtle guru Mark Powell and his turtle dog Gracie. Having been skunked last year, we would have been happy with just one turtle but as luck would have it, we found 3! Gracie the turtle dog sniffed out in the brush one while our keen camper eyes spotted one basking on the bank. After we helped Mark weigh and measure the turtles, we released them back into the water. While bending over to return one of the turtles, a camper discovered our 3rd and smallest turtle of the day. This turtles was less than one year old with its shell only measuring 1 and 3/4 inches!
For our third day, we stayed onsite at NBNC while visiting Chip and Larry at the bird banding station. We caught several birds that had already been banded in years prior and some that had just hatched this year. There were common yellowthroats, song sparrows, chestnut-sided warblers, and house wrens. The highlight though was a species that we had never banded at the nature center... a red-winged blackbird. Although they are a very common species at the nature center, they tend to stick to the fields and cattails.
|Female Red-winged Blackbird|
|Petting a Common Yellowthroat|
Our week culminated in a full day citizen science adventure in Groton State Forest as we worked to photograph and identify as many species as we possibly could, which we would then add to the Vermont Center for Ecostudies project the VT Atlas of Life. The goal of this project is to catalog every living species in the state. So we photographed and identified everything from slugs to flowers, from birds to newts. No better way to spend a day than exploring the wonderful flora and fauna of Vermont!
|We found some Blue-eyed Grass while having lunch atop Owl's Head!|
Saturday, July 5, 2014
|Chestnut-sided Warbler is|
one of the migratory species
that benefits from bird-friendly coffee
A guest post by Scott Maxham:
Birds and coffee don’t seem to have much in common at first thought. Although an early morning birder may beg to differ as waking up at the crack of dawn can be a bit easier with a quick caffeine boost. The connection between birds and coffee is deeper than most realize.
Coffee is a beverage enjoyed by many, but quite often we don’t think about where it was grown. If we do know where it was grown it is most likely to romanticize over the warm location and not how the coffee itself was grown. Unfortunately most coffee plantations clear cut rainforests to make way for the coffee plants. Habitats are destroyed and once pristine forests are no longer standing. This is a big deal because coffee does not require full sun to grow. Interestingly, shade-grown coffee plants produce higher quality beans than sun grown coffee plants.
|Bird-friendly coffee can help preserve|
forest trees, providing critical habitat.
This in turn means that tropical rainforests don’t need to be cut down. These forests are the overwintering habitats for many of the birds we enjoy and are happy to have nesting in North America. Of course, such forests are home to many other plants and animals. Forests are also great at storing carbon and creating oxygen. Forests prevent erosion and promote healthy water cycles.
Birds and Beans is a brand of coffee that aims to support farmers who grow shade-grown coffee. They seek out these farmers and then sell their coffee to bird-loving coffee drinkers. If you would like to taste this bird friendly coffee, visit our coffee page.
In an effort to determine the benefits shade grown coffee, in terms of bird populations, North Branch Nature Center’s ‘Avian Wonders’ summer camp surveyed the Beidler Family Farm, in Randolph, to see what birds resided there. Other organic and bird-friendly farms were surveyed throughout the U.S. and Central America as part of a project with Birds and Beans… stay tuned for the results!
We encourage you to help the cause by purchasing Birds and Beans coffee for yourself or another coffee drinking friend or family member as part of our buyer's club. It is also small and easy change you can make to protect birds all around the world.