Results 81 to 90 of about 15,867 (265)

Let's Talk About Bone Cylinders. Taphonomy of Carnivores and Humans

International Journal of Osteoarchaeology, EarlyView.
ABSTRACTBone cylinders are a distinctive structure predominantly produced by durophagous carnivoran species during the consumption of long bones, in which the diaphyseal canal remains intact while both epiphyses are removed or consumed. This study evaluates the significance of this morphology, traditionally attributed to extant and extinct hyena ...
Darío Herranz‐Rodrigo
wiley   +1 more source

Use of Wing Geometric Morphometric Analysis and mtDNA to Identify Africanization of Apis mellifera in the Central Highlands of Ecuador

Insects
Seventy-five samples were collected from 15 beehives in the central highlands of Ecuador (Tungurahua–Chimborazo) to assess Africanization in managed bee populations using wing geometric morphometric and mitochondrial DNA analyses.
Diego Masaquiza, Lino Curbelo Rodríguez, José Zapata, Joffre Monar, Maritza Vaca, Leonardo Porrini, Martin Eguaras, Martin Daniele, Dora Romero, Amilcar Arenal   +9 more
doaj   +1 more source

Phosphorus limits the growth of bacterial and eukaryotic primary producers in recently deglaciated High Arctic soils

Oikos, EarlyView.
Glaciers are receding at unprecedented rates worldwide, exposing large areas of barren sediment that are quickly colonized by microbes. Nutrient availability is a critical driver of early ecosystem succession, but in the High Arctic its role has remained uncertain.
Steven K. Schmidt, Jannetta N. Robinson, Adam J. Solon, James A. Bradley, Anastasia S. Hambi, Rachel R. Rubin, Charles Oliver, Ben W. Johnson, Mihai O. Cimpoiasu, Trevor P. Irons, Oliver Kuras, Anna Bergstrom, Pacifica Sommers   +12 more
wiley   +1 more source

Management and incipient domestication of Chamaedorea tepejilote in agroforestry systems in Mexico

PLANTS, PEOPLE, PLANET, EarlyView.
Native wild plants are key elements in addressing global biodiversity loss and supporting sustainable food systems. We investigated how rural communities in Mexico manage Chamaedorea tepejilote, a wild palm with edible male inflorescences, by combining ethnobotanical, genetic, morphological and ecological approaches.
Viviana Andrade, Alejandro Casas, Edna Arévalo‐Marín, Gonzalo D. Álvarez‐Ríos, Hernán Alvarado‐Sizzo, Vanessa Guerrero‐Hernández, Paola Ubiergo‐Corvalán, Maite Lascurain‐Rangel   +7 more
wiley   +1 more source

Native Cherimoya Trees with Commercial Potential from Southern Ecuador

Crops
The cherimoya is a plant resource of high genetic and economic value. However, in Ecuador, it remains poorly documented, particularly under the restrictive orographic and climatic conditions of the Andean region. The lack of information limits the use of
Mirian Capa-Morocho, Fernando Granja, Marlene Molina-Müller, Santiago C. Vásquez, Santiago Erazo-Hurtado, Alejandro Vaca, Marlon Oswaldo Pineda-Escobar, Guillermo Rogel, Melissa A. Romero, Diego Chamba-Zaragocin   +9 more
doaj   +1 more source

A putative nursery pollination mutualism between Japanese Chrysosplenium plants and Nipponorhynchus sawflies

PLANTS, PEOPLE, PLANET, EarlyView.
Understanding ecological interactions is increasingly important for biodiversity conservation. This study reveals a unique nursery pollination mutualism between Japanese endemic plants and sawflies. These partners exhibit tightly synchronized life cycles in riparian forests, making them sensitive to environmental changes.
Marika Yamaguchi, Hideo Takahashi, Namiki Kikuchi, Takahiro Yoshida, Noriaki Murakami, Yudai Okuyama   +5 more
wiley   +1 more source

Вариабельность морфотипов серьги восточносибирского лося (Alces americanus pfizenmayeri Zukowski, 1910) в Якутии

Амурский зоологический журнал
Исследована изменчивость и проведена классификация форм серьги у 134 особей восточносибирского лося Якутии. Выявлено 4 основных морфотипа серьги – «капля», «сосулька», «складка» и «переходная», а также 4 подтипа складчатой формы серьги – «алебардическая»
Александр Валерьевич Аргунов
doaj   +1 more source

Filamentation of Campylobacter in broth cultures

Frontiers in Microbiology, 2015
The transition from rod to filamentous cell morphology has been identified as a response to stressful conditions in many bacterial species and has been ascribed to confer certain survival advantages. Filamentation of Campylobacter jejuni was demonstrated
Nacheervan M Ghaffar, Phillippa Leigh Connerton, Ian F Connerton   +2 more
doaj   +1 more source

Monitoring of Crustose Coralline Algae Using Low‐Altitude Unmanned Aerial Vehicles in Intertidal Reefs

Remote Sensing in Ecology and Conservation, EarlyView.
High‐resolution visible‐light imagery from low‐altitude unmanned aerial vehicles, combined with superpixel segmentation and a Random Forest classifier, provides an efficient and scalable framework for mapping and monitoring crustose coralline algae and reef habitats.
Po‐Chien Lin, Han‐Yang Yeh, Zhi‐Cheng Huang   +2 more
wiley   +1 more source

Mapping Scytonemin Pigment Content and Biocrust Functional Indicators Using High‐Resolution Multispectral Imagery

Remote Sensing in Ecology and Conservation, EarlyView.
We demonstrate that high‐resolution multispectral imagery combined with machine learning can accurately predict key biocrust functional indicators, particularly the UV‐protective pigment scytonemin, across dryland ecosystems. Using fine‐scale imagery acquired in the Chihuahuan Desert and Colorado Plateau, we identified spectral bands strongly ...
Raúl Román, Tong Qiu, Fernando T. Maestre, Elizabeth A. La Rue, Sergio Vargas Zesati, Anthony Schaefer, Ryan V. Trexler, Nicole Pietrasiak, Estelle Couradeau   +8 more
wiley   +1 more source