Results 161 to 170 of about 106,773 (303)

STRUCTURAL AND PRODUCTIVE CHARACTERISTICS IN INTRASPECIFIC AND INTERSPECIFIC HYBRIDS OF ELEPHANTGRASS

, 2019
The objective of this study was to evaluate the structure and forage production of hybrids of elephant-grass managed under cut. Twenty-four clones of elephant-grass from Embrapa dairy cattle were used as treatments, and Cameroom as a control. The grasses were cut close to the ground, every 60 days.
Emerenciano Neto, João Virgínio, Bezerra, Marcio Gleybson da Silva, França, Alan Ferreira de, Aguiar, Emerson Moreira de, Difante, Gelson dos santos   +4 more
openaire   +1 more source

Relationship between home range and population density in mammals: the role of sociality, territoriality and habitat dimensionality

Ecography, EarlyView.
Organisms' energy requirements increase with body mass, leading to larger home range areas and lower population density. Previous research has highlighted the differential scaling of these variables in mammals, where species with large home ranges have higher density than expected due to increased home range overlap. Here we investigate this phenomenon
Luca Santini, Gianni Jacucci, Marlee A. Tucker   +2 more
wiley   +1 more source

Spatial distribution of acoustic traits in bird assemblages along regional bioclimatic gradients

Ecography, EarlyView.
Environmental variation shapes acoustic interactions among birds, creating spatial structures in the sonic signature of local species assemblages. Exploring these patterns at regional scales can reveal processes that segregate acoustic strategies along environmental gradients.
Michela Busana, Frédéric Sèbe, Luc Barbaro, Jonathan Carruthers‐ Jones, Solène Croci, Alice Eldridge, Almo Farina, Amandine Gasc, Charlène Gemard, Sylvain Haupert, Sandra Müller, Jean‐Yves Barnagaud   +11 more
wiley   +1 more source

Macroecological relationships of ant diversity with increasing aridity in Australian tropical savannas: contrasting responses of epigaeic and hypogaeic assemblages

Ecography, EarlyView.
Studies using climatic gradients play a key role in our understanding of the importance of rainfall and temperature as factors regulating species diversity and distribution, and thus of likely responses to climate change. However, such studies currently consider above‐ground species only, ignoring the diverse hypogaeic (subterranean) invertebrate fauna.
François Brassard, Giovanny Destour, Tristan Klaftenberger, Alan N. Andersen   +3 more
wiley   +1 more source

Widespread admixture blurs population structure and confounds Lake Trout (Salvelinus namaycush) conservation even in the genomic era

Scientific Reports
Intraspecific variation is important for species’ long-term persistence in changing environments. Conservation strategies targeting intraspecific variation often rely on the identification of management or policy units below the species level based on ...
Thaïs A. Bernos, Julie Gibelli, Sozos Michaelides, Hari Won, Hyung-Bae Jeon, Kia Marin, David A. Boguski, Muhammad Yamin Janjua, Colin P. Gallagher, Kimberly L. Howland, Dylan J. Fraser   +10 more
doaj   +1 more source

Pollen Morphology of Crucianella L. (Rubiaceae) Based on Light and Scanning Electron Microscope Data and Implications for Taxonomy

Microscopy Research and Technique, EarlyView.
This study provides the palynological analysis of 12 Crucianella L. taxa using LM and SEM. Variations in pollen size, aperture number, and exine ornamentation were identified as key traits, demonstrating their taxonomic value for distinguishing closely related species and subspecies within the genus. ABSTRACT Crucianella L.
Sevcan Celenk, Zelal Kücük, Gülşah Bağcıvan, Ruziye Daşkın   +3 more
wiley   +1 more source

Tracking the Pulse of the Dunes: Seasonal Metabolic Responses of Liolaemus arambarensis to Climatic Variability

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Seasonal environmental fluctuations profoundly influence ectothermic vertebrates, regulating their physiology, metabolism, and life cycles. This study investigated the metabolic and morphometric seasonal dynamics of the subtropical sand lizard Liolaemus arambarensis, an endangered species endemic to the coastal dunes of southern Brazil.
Artur Antunes Navarro Valgas, Gustavo Kasper Cubas, Diogo Reis de Oliveira, Jessica Fonseca Araujo, Guendalina Turcato Oliveira, Laura Verrastro   +5 more
wiley   +1 more source

Beyond Genes: Metabolomic Evidence Indicates Potential Species‐Level Differentiation in European Wild Rabbits

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT The European rabbit (Oryctolagus cuniculus) plays a key ecological role in Mediterranean ecosystems, yet its populations are declining. Two subspecies, O. c. algirus and O. c. cuniculus, are present in the Iberian Peninsula and exhibit genetic, phenotypic, and ecological differences.
César Cortés‐García, Mette Skou Hedemann, Jorge Mateo‐López, Lola Llobat, María Cambra‐López, Juan José Pascual, Ignacio García‐Bocanegra, Carlos Rouco, Pablo Jesús Marín‐García   +8 more
wiley   +1 more source

Microbial communities and functional diversity in seafood

JSFA reports, EarlyView.
Abstract Functional diversity encompasses ecosystem processes that enhance adaptability to environmental change. This study explores the diversity of microorganisms associated with seafood. In this paper, we present our knowledge of microbial diversity in relation to seafood.
Christian Larbi Ayisi, Samuel Ayeh Osei, Grace Afumwaa Boamah, Gertrude Dzifa Mensah   +3 more
wiley   +1 more source

Is quinoa‐farming sustainable in marginal environments? Social, economical and environmental aspects

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Quinoa (Chenopodium quinoa Willd.) is an Andean grain crop introduced as a novel crop to many parts of the world in recent years. Recognized for nutritious seeds and high abiotic stress tolerance, it has been promoted as an element of climate‐resilient agriculture, particularly in marginal environments.
Anna Tabea Mengen, Damir Esenaliev, Jakhongir Babadjanov, Lukas John, Sandra M. Schmöckel, Botir Khaitov   +5 more
wiley   +1 more source