Results 81 to 90 of about 2,643 (205)

The ecological biogeography of Amazonia

Frontiers of Biogeography, 2013
The Amazon drainage basin (Amazonia) contains the largest continuous area of tropical rainforest in the world and is the most species-rich terrestrial ecosystem on Earth.
Ana C M Malhado, Richard Ladle, Robert Whittaker, Atanásio Neto, Yadvinder Malhi, Hans ter Steege   +5 more
doaj  

Impacts of large herbivores on savanna plant communities: Predictive models of herbivore selectivity and plant response

Ecology, Volume 107, Issue 7, July 2026.
Abstract Large herbivores are among the most ecologically influential and extinction‐prone animals. Megaherbivores, in particular, radically alter vegetation. Yet, few studies have tried to predict the impacts of herbivores—or their extinction—on plant species composition and community structure.
Joel O. Abraham, Maria Stahl, Samson Kurukura, Abdikadir Ali Hassan, Jacob R. Goheen, Todd M. Palmer, Tyler R. Kartzinel, Robert M. Pringle   +7 more
wiley   +1 more source

Decoupling climate and human impacts on the nitrogen cycle during the Irish Bronze Age

Journal of Quaternary Science, Volume 41, Issue 5, Page 672-685, July 2026.
ABSTRACT Disentangling climate variability and human activity in past nitrogen cycling is key to understanding ecosystems. Previous studies in Ireland observed a widespread, permanent shift in terrestrial nitrogen cycling during Later Prehistory, potentially linked to intensifying land‐use.
Sarah Ferrandin, Gill Plunkett, Neil Ogle   +2 more
wiley   +1 more source

Insights into Red Deer Ecology during the Late Epigravettian: New isotopic evidence from Riparo Tagliente (Italian Prealps)

Journal of Quaternary Science, Volume 41, Issue 5, Page 716-731, July 2026.
ABSTRACT The transition from the Last Glacial Maximum to the Late Glacial marked a shift from the cold conditions of Greenland Stadial‐2 (GS‐2) to the warmer phases of Greenland Interstadial‐1 (GI‐1), enabling the reoccupation of Alpine regions by Late Palaeolithic hunter‐gatherers.
Mahym Amanova, Dorothée G. Drucker, Federica Fontana   +2 more
wiley   +1 more source

An updated view on the long‐term survival and significance of marine protist resting stages

Limnology and Oceanography Letters, Volume 11, Issue 4, July 2026.
Abstract Resting stages of protists act as biological time capsules when buried in marine sediments, preserving viable cells that enable the study of ecological and evolutionary processes across timescales. Recent studies have extended the known viability in diatoms to several millennia and in dinoflagellates to over a century, while also identifying ...
Sanne Mariël Moedt, Sofia Ribeiro
wiley   +1 more source

Human–climate–environment interactions in Espiritu Santo, Vanuatu during the past millennium

Frontiers in Earth Science
Over the past millennium, the tropical Pacific Islands of Remote Oceania have experienced significant transformations caused by different waves of human settlement and climatic variability.
Giorgia Camperio, Giorgia Camperio, S. Nemiah Ladd, Matiu Prebble, Matiu Prebble, Matiu Prebble, Cindy De Jonge, Tobias Schneider, Elena Argiriadis, Elena Argiriadis, Ronald Lloren, Ronald Lloren, Daniel B. Nelson, Amicie A. Delahaie, Amicie A. Delahaie, Christiane Krentscher, Nathalie Dubois, Nathalie Dubois   +17 more
doaj   +1 more source

Digitizing collections to unlock the full potential of palynology: A case study with the Smithsonian palynology collection

PLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1116-1131, July 2026.
Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collections if they are not fully utilizable? To solve this problem, we digitized the Smithsonian palynological collection using both light and confocal microscopy.
Carlos Jaramillo, Surangi W. Punyasena, Daurys de Alba, Roxana Alveo, Angelica Arcila, Jorge Bermudez, Jonatan Bustos, Dayenari Caballero‐Rodriguez, Karen Cardenas, David Caro, Francy Carvajal, Ivonne Marcela Castañeda, Shara Chaves, Carlos D'Apolito, Andres Diaz‐Jaramillo, Laura Diaz, Luisa Gomez, Mauricio León‐Carreño, Paula Lopera, Maria Alejandra Lopez, Priscila Lopez, Luke Mander, Jhonatan Martínez Murcia, Carlos Moreno, Enrique Moreno, Enrique Neyra, Brenda Orosco, Jhon Ortiz, Natalia Ossa, Natalia Ovalle, Carolina Ovalle, Angelo Plata, Ingrid Romero, Bruno Scudeiro, Silane A. F. da Silva Caminha, Axel Tejada‐Fajardo, Vinicius Do Valle, Thiago Wood   +37 more
wiley   +1 more source

Fossil freshwater fishes from the Pliocene of northern Colombia and the palaeogeography of northern South America

Papers in Palaeontology, Volume 12, Issue 4, July/August 2026.
Abstract Freshwater fishes from the northwestern Colombian Andes are reported from the Pliocene Sincelejo and Ware formations. A total of 10 taxa have been identified, involving two orders, five families and nine genera. Characters from dental morphology, fin spines and cranial bones are provided as taxonomic tools for the study of fossil fishes.
Gustavo A. Ballen, Camilo Montes, Jorge D. Carrillo‐Briceño, Sergio Bogan, Sandra Reinales, Mario C. C. de Pinna, Carlos Jaramillo   +6 more
wiley   +1 more source

A thorny evolution: first Triassic ammonoid with a ventral apertural elongated rostrum

Papers in Palaeontology, Volume 12, Issue 4, July/August 2026.
Abstract Ornamented terminal peristomes are common in ammonoids, but pronounced conch projections are rare, particularly in the Triassic. A new early Spathian assemblage from southeastern Idaho yielded two ammonoid specimens with an impressive terminal mid‐ventral elongated rostrum, documenting the first Triassic occurrence and one of the few ...
Arnaud Brayard, Emmanuel Fara, Nicolas Olivier, James F. Jenks, Kevin G. Bylund, Daniel A. Stephen, Noreen Kittrick, Emilie Steimetz, Gilles Escarguel   +8 more
wiley   +1 more source

Correlative X‐Ray and Neutron Tomography of Microbial Biosignatures: Perspectives for Mars Sample Return

Earth and Space Science, Volume 13, Issue 7, July 2026.
Abstract Mars Sample Return (MSR) is the next major frontier in Mars exploration, through which advanced laboratory instrumentation will be used to study Martian samples and answer key questions surrounding Mars' planetary evolution and astrobiology. Non‐destructive, high‐resolution imaging will be critical for preliminary MSR analyses.
Sylvia Olewinski, Imran A. Rahman, Anna Fedrigo, Peta A. Hayes, Caroline L. Smith, Keyron Hickman‐Lewis   +5 more
wiley   +1 more source