Tessera

Alexander Lees @alexanderlees.bsky.social · 8mo ago

Huge News from the Western Amazon: it's the year 2025 and we are still describing entirely new, strikingly-distinctive large-bodied bird species! Behold Tinamus resonans sp. nov. the Slaty-masked Tinamou mapress.com/zt/article/v... #Ornithology @tetzoo.bsky.social 🪶

Photo montage of Tinamus resonans sp. nov., a new species of tinamou from the montane forests of the Serra do Divisor, western Amazonia, Brazil. The species is distinguished by a unique combination of plumage pattern, vocal repertoire, and ecological characteristics, including a conspicuous dark slate facial mask, vivid rufous-cinnamon underparts, and a uniform brownish-gray back. Its vocalizations are remarkable, consisting of long and powerful songs that echo strikingly across the steep montane slopes, producing a characteristic resonant effect. The species was documented exclusively at higher elevations within a transitional zone between submontane and stunted forests, where the understory is densely structured by root mats. A preliminary population estimate, based on field detections and spatial extrapolation, suggests approximately 2,106 individuals restricted to the Serra do Divisor massif. Although no immediate anthropogenic pressures were observed within its range, the species may be highly vulnerable to climate change and to proposed infrastructure projects that threaten the integrity of this federally protected region. The discovery of T. resonans highlights the biological uniqueness of the Serra do Divisor, reinforces its status as a center of montane endemism, and underscores the critical importance of maintaining its long-term conservation.

Reid Rumelt @rumeltr.bsky.social · last yr.

Hello all! For my first post on this platform, I’m excited to share the first chapter of my dissertation, about using eBird and bioacoustics survey data to make species distribution models for Neotropical birds, which was published in @plosone.org today. journals.plos.org/plosone/arti... 🧵(1/8)

Combining acoustic survey and citizen science data yields enhanced species distribution models for tropical rainforest birds

A key goal in ecology is to develop effective ways to understand species’ distributions in order to facilitate both their study and conservation. Many species distribution modeling analyses have been ...

journals.plos.org