Results 51 to 60 of about 565 (129)

Mass mortality of saguaros (Carnegiea gigantea) from windthrow: A rare, demographic disturbance in a desert ecosystem

Ecosphere, Volume 17, Issue 5, May 2026.
Abstract Windthrow is a significant disturbance in many forests globally during which strong winds damage trees or other large flora, yet its role in arid ecosystems remains largely understudied. The saguaro cactus (Carnegiea gigantea), a keystone species of the Sonoran Desert, is a long‐lived, massive succulent whose demography is primarily thought to
Don E. Swann, Lauren Badinger, Daniel E. Winkler, Anastacia Lopez Davis   +3 more
wiley   +1 more source

Systematics of treefrogs of the Hypsiboas calcaratus and Hypsiboas fasciatus species complex (Anura, Hylidae) with the description of four new species

ZooKeys, 2014
We review the systematics of the Hypsiboas calcaratus species complex, a group of widely distributed Amazonian hylid frogs. A comprehensive analysis of genetic, morphological, and bioacoustic datasets uncovered the existence of eleven candidate species ...
Marcel Caminer, Santiago Ron
doaj   +1 more source

Exploring Andean foothill connectivity: insights from population divergence in the white‐tipped sicklebill, Eutoxeres aquila

Journal of Avian Biology, Volume 2026, Issue 3, May 2026.
The Northern Andes, acting both as barrier and corridor, exert strong influence in Neotropical biodiversity. Still, the diversification of foothill taxa inhabiting ecotonal zones between lowland rainforest and montane environments in this region remains poorly understood.
Laura Rosado‐ Llerena, Abigail Perkins, David Ocampo, Jefferson García‐ Loor, Andrés M. Cuervo, David A. Prieto‐ Torres, Elisa Bonaccorso   +6 more
wiley   +1 more source

Decadal Erosion Rates and Sediment Buffering Identified Through Enhanced DEM Differencing Using Underutilized Global Satellite DEMs

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 5, May 2026.
Abstract Quantifying decadal‐scale erosion rates in tectonically active regions is essential for assessing landscape hazards and constraining sediment budgets. A key question in Earth surface processes is how contemporary erosion measurements influenced by recent climatic extremes relate to long‐term geological rates.
Gopal Kumar, Yu‐Chang Chan, Cheng‐Wei Sun, Chih‐Tung Chen   +3 more
wiley   +1 more source

Unprecedented Shifts in Hydrology Are Emerging Across California's Critical Basins: An Evaluation From 0.5 to 3.5°C

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract With advances in climate models and downscaling techniques, stakeholders anticipate high‐resolution analysis to inform regional to local changes in water management. Here, we produce hydrologic projections from an ensemble of Earth System Models (ESMs) that were selected and downscaled to support California's 5th Climate Assessment.
B. Bass, L. Su, D. Pierce, S. Rahimi, A. Hall, D. Cayan, W. Krantz, J. Kalansky, A. Rhoades, P. Ullrich   +9 more
wiley   +1 more source

The Genus Hyalyris Boisduval, 1870 (Lepidoptera: Nymphalidae) in the Brazilian Atlantic Forest: Systematics, Taxonomy and Conservation

Austral Entomology, Volume 65, Issue 2, May 2026.
ABSTRACT The neotropical butterfly tribe Ithomiini (Danainae) comprises about 400 species distributed from Mexico to Northern Argentina, 58 of which occur in the Brazilian Atlantic Forest. Among these are two species assigned to the genus Hyalyris Boisduval, 1870: Hyalyris fiammetta (Hewitson, 1852) and Hyalyris leptalina (C. Felder & R. Felder, 1865).
André Victor Lucci Freitas, Eduardo Proença Barbosa, Nick Vyacheslavovich Grishin, Ricardo Russo Siewert, Keith Richard Willmott, Gerardo Lamas, Joana Isabel Meier, Augusto Henrique Batista Rosa   +7 more
wiley   +1 more source

Similar looking sisters: A new sibling species in the Pristimantis danae group from the southwestern Amazon basin (Anura, Strabomantidae) [PDF]

Zoosystematics and Evolution
We describe a new frog species that is the sibling of Pristimantis reichlei. These two sister species inhabit the Amazonian lowlands and adjacent foothills of the Andes, from central Bolivia to central Peru.
Jörn Köhler, Frank Glaw, César Aguilar-Puntriano, Santiago Castroviejo-Fisher, Juan C. Chaparro, Ignacio De la Riva, Giussepe Gagliardi-Urrutia, Roberto Gutiérrez, Miguel Vences, José M. Padial   +9 more
doaj   +3 more sources

Exploring ecohydrology through the lens of local fishers in the Bolivian Amazon

Ecosphere, Volume 17, Issue 4, April 2026.
Abstract The natural flow regimes of Andean‐Amazon tributaries play a vital role in sustaining their rich biodiversity and productive local fisheries, but ongoing and proposed alteration of river flow regimes by large dams threatens to negatively impact river ecosystems. Despite its importance, our understanding of how hydrologic variability influences
Lina G. Terrazas‐Villarroel, Jochen Wenninger, Marcelo Heredia‐Gómez, Nick van de Giesen, Michael E. McClain   +4 more
wiley   +1 more source

Local canopy cover, shade tree identity and landscape tree cover shape leaf‐cutter ant nest density and herbivory in cacao agroforestry systems

Journal of Applied Ecology, Volume 63, Issue 4, April 2026.
Our findings provide practical guidance for agroforestry management by demonstrating that intercropping with selected species can mitigate damage from leaf‐cutter ants in cacao agroforests. At the landscape scale, high tree cover was associated with low herbivory rates, emphasising the need to maintain or restore forested habitats.
Blanca Ivañez‐Ballesteros, Melvin Opolka, Pablo Aycart‐Lazo, Carolina Ocampo‐Ariza, Bea Maas, Evert Thomas, Teja Tscharntke, Marcell Karl Peters, Ingolf Steffan‐Dewenter   +8 more
wiley   +1 more source

The Biogeography of ENSO‐Induced Climate Variability, Deforestation Trends and Fire‐Induced Forest Loss in the Neotropics

Journal of Biogeography, Volume 53, Issue 4, April 2026.
ABSTRACT Aim To identify Neotropical ecoregions experiencing compound environmental exposure to El Niño/La Niña‐driven climate variability, deforestation trends and fire‐induced forest loss. Location Neotropical realm. Methods We quantified historical exposure to ENSO‐related climate variability by correlating the Oceanic Niño Index with four ...
Andres González‐González, Benjamin Quesada, Nicola Clerici, Juan Fernández‐Manjarrés   +3 more
wiley   +1 more source