Results 31 to 40 of about 17,442 (251)

Chironomidae larvae (Diptera) of Neotropical floodplain: overlap niche in different habitats

Brazilian Journal of Biology
The niche overlap between trophic groups of Chironomidae larvae in different habitats was observed between trophic groups and between different environments in Neotropical floodplain.
CMM. Butakka, FH. Ragonha, AM. Takeda
doaj   +1 more source

Trophic niche overlap decreases in related mesocarnivore species

Oikos
In natural environments, competition between species is a crucial factor for the survival or demise of populations. Therefore, understanding the mechanisms that promote species coexistence is crucial in community and evolutionary ecology. The Phylogenetic Limiting to Similarity Hypothesis (PLSH) posits that closely related species should experience ...
Carlos Sarabia, Javier Hernández-Hernández, Imanol Miqueleiz, Emilio Virgós, Jennifer A. Leonard, Jose María Gil‐Sánchez   +5 more
openaire   +4 more sources

Diet Metabarcoding Reveals Extensive Dietary Overlap between Two Benthic Stream Fishes (Zingel asper and Cottus gobio) and Provides Insights into Their Coexistence

Diversity, 2022
Niche partitioning studies are essential to understand the mechanisms that allow ecologically similar species to coexist. The Rhone streber (Zingel asper) and the European bullhead (Cottus gobio) are both benthic riverine fishes that consume ...
Kurt Villsen, Emmanuel Corse, Gaït Archambaud-Suard, Kévin Héran, Emese Meglécz, Alexander V. Ereskovsky, Rémi Chappaz, Vincent Dubut   +7 more
doaj   +1 more source

Environmental factors drive trophic dynamics but not niche overlap of sympatric Lebiasinidae fishes in Amazonian streams

Neotropical Ichthyology
This study investigated the influence of environmental factors on trophic characteristics and interactions between two sympatric, phylogenetically related fish species, Copella arnoldi and Pyrrhulina capim, in Eastern Amazon streams.
Francisco de Paulo Tavares Ribeiro, Bruno da Silveira Prudente, Tiago Magalhães da Silva Freitas   +2 more
doaj   +1 more source

Parasite sharing in wild ungulates and their predators: Effects of phylogeny, range overlap, and trophic links [PDF]

Journal of Animal Ecology, 2019
Abstract Understanding factors that facilitate interspecific pathogen transmission is a central issue for conservation, agriculture, and human health. Past work showed that host phylogenetic relatedness and geographical proximity can increase cross‐species transmission, but further work is needed to examine the importance of host traits, and species ...
Patrick R. Stephens, Sonia Altizer, Vanessa O. Ezenwa, John L. Gittleman, Emili Moan, Barbara Han, Shan Huang, Paula Pappalardo   +7 more
openaire   +2 more sources

Feeding Ecology and Trophic Overlap of Sympatric Rajidae Species in the Eastern Ionian Sea (Central Mediterranean)

Fishes
The feeding ecology of sympatric elasmobranchs provides key insights into trophic interactions and species coexistence within demersal ecosystems. The current study examined the diet composition and trophic relationships of three skate species (Raja ...
Archontia Chatzispyrou, Konstantinos Charalampous, Evgenia Lefkaditou, Aikaterini Anastasopoulou, Constantin Koutsikopoulos   +4 more
doaj   +1 more source

Trophic Partitioning among Three Mesopredatory Shark Species Inhabiting the Northwestern Adriatic Sea

Diversity, 2023
While the general diet of Mediterranean elasmobranchs has been widely studied, little is known about food partitioning and competition among sympatric species, despite these being important forces structuring marine communities. Using stomach content and
Licia Finotto, Daniela Berto, Federico Rampazzo, Saša Raicevich, Sara Bonanomi, Carlotta Mazzoldi   +5 more
doaj   +1 more source

CD4+ Tregs Drive Post‐Ischemic Sprouting Angiogenesis via Endothelial YY1/MAML1 Reactivation

Advanced Science, EarlyView.
ABSTRACT Microvascular complications of diabetes are chronic diseases of small vessels. We previously found that CD4+ regulatory T‐cells (Tregs) are markedly reduced in type 2 diabetes (T2D) after ischemic injury in both mice and humans, and that Treg deficiency in immunodeficient mice impairs vascular regeneration.
Hang Qu, Cheng Kiu Ho, Jitao Liu, Lei Cui, Yangfeng Hou, Cai Liang, Wenchu Ye, Randolph H. L. Wong, Shohei Hori, Bin Zhou, Kathy O. Lui   +10 more
wiley   +1 more source

Formation of Adaptive Trophic Niches of Euryphagous Fish Species in Response to Off-Seasonal Water Level Regulation in Hongze Lake

Animals
Off-seasonal water level regulations disrupt the biological traits and phenological rhythms of native fish species, yet their impacts on interspecific trophic interactions remain understudied.
Si Luo, Zexin Wang, Shengyu Zhang, Huan Mu, Yubin Jiao, Xiao Qu, Qishuo Wang, Ruiqi Yang, Yanxia Zuo, Shiyu Jin   +9 more
doaj   +1 more source

Invasive signal crayfish and native noble crayfish show trophic niche shrinkage in sympatry [PDF]

NeoBiota
Studying the coexistence of native species and invasive species with similar functional traits, habitat usage, and feeding habits is crucial for understanding the dynamics of invasion and ecological changes in the invaded ecosystem.
Fabio Ercoli, Timo J. Ruokonen, Martin Bláha, Antonín Kouba, Miloš Buřič, Lukaš Veselý   +5 more
doaj   +3 more sources