19 April 2018

Small Changes in Rainforests Cause Big Damage to Fish Ecosystems

Freshwater fish diversity is harmed as much by selective logging in rainforests as they are by complete deforestation, according to a new study.

Researchers had expected the level of damage would rise depending on the amount of logging and were surprised to discover the impact of removing relatively few trees.

Read More: https://www.eurekalert.org/pub_releases/2018-04/icl-sci041918.php

05 April 2018

Land-use change interacts with climate to determine elevational species redistribution

Figure 2

Abstract: "Climate change is driving global species redistribution with profound social and economic impacts. However, species movement is largely constrained by habitat availability and connectivity, of which the interaction effects with climate change remain largely unknown. Here we examine published data on 2798 elevational range shifts from 43 study sites to assess the confounding effect of land-use change on climate-driven species redistribution. We show that baseline forest cover and recent forest cover change are critical predictors in determining the magnitude of elevational range shifts. Forest loss positively interacts with baseline temperature conditions, such that forest loss in warmer regions tends to accelerate species’ upslope movement. Consequently, not only climate but also habitat loss stressors and, importantly, their synergistic effects matter in forecasting species elevational redistribution, especially in the tropics where both stressors will increase the risk of net lowland biotic attrition."

Read More: https://www.nature.com/articles/s41467-018-03786-9