1. To study the impact of climate change and human factors
To study the effects of climate change and human factors in Campina and Campinarana, I revisited five places to register the species previously found in the same location in 2009, to evaluate the ecological changes occurring in the last 14 years.
· Science grove. Amazonian Research Institute
· Ducke Reserve - Primary Forest reserve, which extends over 100 km2 on the outskirts of the city of Manaus, where the Musa - Amazonian Museum and the Amazonic Botanic Garden are also located.
· Campina Reserve - Located on Podzolic soil, and representative of the area of influence of the Rio Negro with a type of plant formation that differs significantly from imposing Amazonian forests.
· Presidente Figueiredo region - Located about a three-hour drive from the city of Manaus.
· Amazon Ecopark - Located on the edges of the Tarumã River, a tributary of the Rio Negro, surrounded by Campina, Campinarana and the Amazon Forest.
During the field work the rain was stronger and more frequent than in 2009, but despite that I managed to accomplish what I had planned. From 20 species I had found in 2009, I found 18, plus several others not seen before. The species that I could not find again occur in a place that was impossible to visit in 2023.
Some challenges had to be overcome. I did not have the biologist Dr. Carlos Ferreira who had accompanied me in all the field work on the first project in 2009. He had recently suffered two strokes and unfortunately passed way in September 2023. I had no local guides available to help in the field work; I had to make marks in the sand in the Campina Reserve so that I would not get lost on the way back!
The main threats found in the study areas caused by human factors were: Cut bush, deforestation, pollution, fire and trash left by tourists. The main effect caused by climate change has been the amount, intensity and timing of rainfall in the Amazon River and tributaries changed over the years. The highest water measurements are taken in the port of Manaus. In the last twelve years, there have been six of the ten biggest floods in recorded history. Among the main risks to Campina and Campinarana are the human activity that contributes to ecosystems vulnerability, and wood, charcoal and sand exploitation, and also the rainfall pattern. My conclusions are neither too good nor very bad. Climate change is a fact, but at the same time especially when it comes to the Amazon, awareness has changed and several initiatives have been taken. Society has been changing its perception regarding the importance of preserving ecosystems, especially among the younger people. We have to believe that every small change makes a difference!