Results 31 to 40 of about 4,759 (257)

Diet composition, niche overlap and partitioning of five sympatric rhinolophid bats in Southwestern China during summer

Frontiers in Ecology and Evolution, 2023
Understanding trophic niche differentiation is critical for exploring interspecific competition and stable coexistence among morphologically similar sympatric species.
Wentao Dai, Wentao Dai, Aoqiang Li, Yang Chang, Tong Liu, Lin Zhang, Jun Li, Haixia Leng, Zhongle Li, Longru Jin, Keping Sun, Keping Sun, Jiang Feng, Jiang Feng   +13 more
doaj   +1 more source

Diet and Trophic Niche Overlap of Three Toad Species (Amphibia, Anura) from Poland [PDF]

Biotechnology & Biotechnological Equipment, 2010
During our study we identified 53 prey items in the trophic spectrum of Bombina bombina, 124 prey items in the diet of Bufo bufo and 95 prey items in the diet of Epidalea viridis.
I. A. Mollov, A. M. Stojanova
openaire   +1 more source

Community-level trophic characteristics and interactions between native and non-native fish: The example of the Lower Pearl River Basin of China [PDF]

NeoBiota
Aquatic ecosystems can harbour more than one non-native fish species and this can represent a threat due to trophic interactions with native fishes. However, research on interactions amongst multiple co-occurring native and non-native fish remains scarce.
Hui Wei, Lorenzo Vilizzi, Mingsi Zhang, Ying Jiang, Meng Xu, Miao Fang, Fandong Yu, Lu Shu, Xuejie Wang, Dangen Gu   +9 more
doaj   +3 more sources

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   +2 more sources

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 breadth and niche overlap in a guild of flower-visiting bees in a Brazilian dry forest [PDF]

Apidologie, 2012
Trophic niche breadth and niche overlap of bees were studied in a region of Caatinga (a deciduous dry thorn scrub forest) in Brazil with the lowest mean annual rainfall of the country, highly seasonal environmental variation, and an unpredictable rainy season.
Cândida M. L. Aguiar, Gilberto M. de M. Santos, Celso F. Martins, Steven J. Presley   +3 more
openaire   +1 more source

Niche partitioning of two piscivorous fish species in a river in the western Brazilian Amazon

Iheringia: Série Zoologia, 2022
We analyzed the seasonal variation in the diet, trophic niche breadth (Levins index), the partitioning of food resources (Pianka’s symmetric index) and trophic level (weighed average of trophic level of each prey determined in FishBase and SeaLifeBase ...
Igor David da Costa, Natalia Neto dos Santos Nunes   +1 more
doaj   +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

Seasonal Change in Trophic Niche of Adfluvial Arctic Grayling (Thymallus arcticus) and Coexisting Fishes in a High-Elevation Lake System.

PLoS ONE, 2016
Introduction of non-native species is a leading threat to global aquatic biodiversity. Competition between native and non-native species is often influenced by changes in suitable habitat or food availability.
Kyle A Cutting, Wyatt F Cross, Michelle L Anderson, Elizabeth G Reese   +3 more
doaj   +1 more source

Food niche of solitary and social bees (Hymenoptera: Apoidea) in a Neotropical Savanna

Sociobiology, 2020
In this study we investigated the group of floral resources that support bee populations from a bee assemblage in a savanna, and the way in which bee species use these food resources, with an emphasis on the breadth and overlap of trophic niches.
Claudia Oliveira dos Santos, Cândida Maria Lima Aguiar, Celso Feitosa Martins, Edson Braz Santana, Flávio França, Efigênia Melo, Gilberto Marcos M. Santos   +6 more
doaj   +1 more source