Rare green snaketail dragonfly news


This is a 2009 video, showing a green snaketail dragonfly along the Roer river in Limburg province in the Netherlands.

Translated from the Dutch Vlinderstichting entomologists:

Friday, July 31, 2015

It’s a good year for the green snaketail dragonfly. This rare species has been absent for decades in the Netherlands, but since 1996 it’s back in Limburg [province]. Three years ago, the green snaketail dragonfly was seen along the Dommel [river in North Brabant province] and it has been seen there once again.

Young white storks, great crested grebes and dragonfly


This is a video from the Czech republic, about white storks with (still very young) chicks.

On 12 July 2015, to Warmond.

In the meadow, five white storks: the two parents and their three recently fledged youngsters. Later, they would fly back to the nest.

More to the north west, a white wagtail on a fence.

In the small pond in the nature reserve, a female black-tailed skimmer dragonfly, sitting on a reed stem. A blue-tailed damselfly flies past.

Many barn swallows flying over the meadow behind the woodland.

A great crested grebe on a nest in the pond behind the castle. Its partner swims not far away.

A buzzard flying over the treetops.

Rare northern emerald dragonfly discovery in the Netherlands


Male northern emerald

Today, Dutch conservation Landschap Overijssel reports that a rare species, the northern emerald dragonfly, has been found reproducing in Wierdense Veld nature reserve.

Probably, these insects have benefited from a higher water level in the reserve.

Ants attack dragonfly, video


In this 16 June 2015 video, wood ants attack a four-spotted chaser dragonfly which had just metamorphosed from the larval stage.

Warden Erik Bloeming of the Bargerveen nature reserve in Drenthe province in the Netherlands made this video. See also here.

Hippo dung helps dragonflies, fish


This video is called Inside Nature’s Giants- Hippo.

From New Scientist:

Hippo dung is health food for river animals

18:45 15 April 2015 by Jessica Hamzelou

Don’t just flush it away. Just as one person’s trash is another’s treasure, hippo dung seems to be a valuable source of nutrition for the animals’ aquatic neighbours.

By injecting millions of tons of faeces into African waters every year, hippos may be providing a vital link between terrestrial and aquatic ecosystems.

Douglas McCauley of the University of California in Santa Barbara and his colleagues compared fish and dragonfly larvae in two river pools in Kenya‘s Laikipia district, one inhabited by hippos and the other hippo-free.

They found components of hippo dung in the tissues of dragonfly larvae that lived alongside the animals year round. During the dry season, fish absorbed faecal nutrients as well, while levels in dragonfly larvae increased.

The team thinks that during the wet season, high rainfall dilutes the hippos’ waste and faster-flowing rivers also wash away dung before animals can access it.

As climate change and development in east Africa continue to affect local rivers, it will be important to consider how the benefits of hippo excrement can be preserved.

Journal reference: Ecosphere, doi.org/3nv

Dragonflies in your garden


In this Dutch video, entomologist Kars Veling explains how to attract dragonflies to your garden.

These Dragonflies Helped an Astronomer Find Ghostly New Galaxies. A Yale scientist set out to capture the insect’s full lifecycle and ended up discovering hidden wonders of the cosmos: here.

Dragonfly feeding, video


This video is about a vagrant darter dragonfly feeding.

Marjo Steffen in the Netherlands made this video.