Christians stories have been published widely in magazines worldwide. Please see the portfolios and electronic tear sheets for the available stories. Interested editors are invited to request more detailed information on the stories. We would be happy to supply you with a broader selection of images.

Ocelots - automated radio tracking of an elusive forest cat

Mysterious forest cats meets cutting edge science. Christians images on ocelots show intimate glimpses into a secretive animals life and also documents the exciting techniques that scientists use to understand the ocelots role in the ecosystem.

Mangroves in Belize - threatened life on the fringe

Connecting the land with the oceans, mangroves can be found in many tropical coasts around the globe. They protect the coastline, provide breeding grounds for countless species of reef and open water fish and are home to a fascinating and diverse ecosystem. Unfortunately mangroves are where people want to be, and are cut down at alarming rate for shrimp farms, beachfront development and char coal. The results can be desasterous, and more then 200.000 dead people after the 2004 tsunami  illustrated the importance of mangroves in a painful way.

Red-eyed Tree Frogs The Fascinating Life History of an Icon Species
Not only is the Red-eyed tree frog an icon for biodiversity and beauty of tropical rainforests – it has also an interesting breeding behavior recently revealed. Home to the canopies of lowland rainforests between Mexico and Panama, this attractive species only comes down to the forest floor for mating. In rainy nights, males gather around ponds and pools in the rainforest and call to attract females. A female then glues egg clutches under leaves that overhang the pond and the embryos develop to tadpoles outside the water.

Army Ants The Fascination of Social Predation
Army ants are thought of as the most complex of all ant species. Their fast and detailed chemical communication enables the colony of several hundred thousands of ant worked to act almost as one single organism. The new world army ants are especially well studied and display fascinating and unique behaviors such as swarm raiding (swarms can be several hundred thousand individuals and more then 50 feet wide on the forest floor) in which the ants overwhelm much larger prey items, daily migrations and change of nest site, building temporary nests, so called bivouacs out of ant bodies.

Leaf-cutter Ants - exciting news from the oldest agriculturists

Leafcutter ants are among the most sophisticated ant species on our planet. Their enormous colonies, with up to several million ants, cultivate a certain fungus to digest the leaf fragments they bring from the rainforest canopy. The fungus “digests” the plant material, coping with its many poisons, which protect these leaves from other herbivores. Ants first employed fungi as external digestive organs about 50 million years ago. Fungus-taming has transformed some species of leaf-cutting ants into abundant, versatile herbivores — major pests of human agriculture.

A Magic Web The Forest of Barro Colorado Island
The photo essay A Magic Web was created over a 15 month field period as assignment for the Smithsonian Tropical Research Institute to illustrate a book of the same title. In a novel approach, this mixture between coffee-table and popular science book attempts to share the unique beauty and the fascinating ecology of tropical forests with all audiences interested.

Iguanas Green Dragons from the Tropical Canopy
Green Iguanas, archaic-looking tree-dwelling lizards from Central America, are kept by 10 million people as pets. In the wild, Iguanas live in the canopies of lowland rainforests in Central-and South America where they feed exclusively on foliage.

Jasmund - enchanted forest by the Sea

Jasmund National Park is a smal jewel of a beech forest on Germany's largest island, the island of Ruegen. Situated in the Baltic, it features impressive chalk cliffs of up to 300 feet, and a forest that has been largely untouched for several centuries. Christian had the opportunity to work in Jasmund throug all seasons, with extended stays of 3 weeks and more in spring, summer, fall and winter. With this photo essay, he tried to capture the variety of impressions and moods that the Jasmund forest offers to the visitor in the course of the year.

Manakins - dancers of the understory


In Manakins, little understory birds in Central and South America, the males of each species have very interesting courtship displays. Using a high speed camera, scientists  in Panama now revealed for the first time the elegance and mechanisms of the courtship of the Golden Collared Manakin.

Radio tracking Dragonflies

The movement of smal animals is ecologically very relevant, yet difficult to observe. Scientists from Princeton University and their collaborators custum made extremely small radiotransmitters and outfitted Cessna planes with receivers to explore the secrets of migrating dragonflies.

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