Results 31 to 40 of about 16,020 (250)

Trophic Dynamics and Niches of Salt Marsh Foraminifera [PDF]

open access: yesAmerican Zoologist, 1973
Energetic considerations of the growth of three species of littoral benthic foraminifera, Allogromia laticollaris, Rosalina leei , and Spiroloculina hyalina , have been made on laboratory-grown populations. Under optimum laboratory conditions A. laticollaris has the greatest intrinsic rate of increase (r = 2.533 org/day); S. hyalina (r = 1.472 org/day),
JOHN J. LEE, WILLIAM A. MULLER
openaire   +1 more source

Historical niche partitioning and long‐term trophic shifts in Laurentian Great Lakes deepwater coregonines

open access: yesEcosphere, 2018
Over the last 100 yr, anthropogenic stressors have decimated the assemblage of deepwater coregonines that once underpinned the food webs of the Laurentian Great Lakes.
Chelsey Blanke   +2 more
doaj   +1 more source

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

open access: yesFrontiers 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   +13 more
doaj   +1 more source

Trophic response to ecological conditions of habitats: Evidence from trophic variability of freshwater fish

open access: yesEcology and Evolution, 2020
To adapt to ecological and environmental conditions, species can change their ecological niche (e.g., interactions among species) and function (e.g., prey‐predation, diet competition, and habitat segregation) at the species and guild levels.
Bohyung Choi   +9 more
doaj   +1 more source

Exploring the trophic niche characteristics of four carnivorous Cultrinae fish species in Lihu Lake, Taihu Basin, China

open access: yesFrontiers in Ecology and Evolution, 2022
This study found significant differences between the standard length distributions of humpback and redfin culter and between Mongolian culter and topmouth culter.
Yuan Wang   +3 more
doaj   +1 more source

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

open access: yesNeoBiota
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   +5 more
doaj   +3 more sources

Swimming with the giant: coexistence patterns of a new redfin minnow Pseudobarbus skeltoni from a global biodiversity hot spot

open access: yesEcology and Evolution, 2016
Ecological niche theory predicts that coexistence is facilitated by resource partitioning mechanisms that are influenced by abiotic and biotic interactions.
Wilbert T. Kadye   +2 more
doaj   +1 more source

Bioenergetics, Trophic Ecology, and Niche Separation of Tunas

open access: yes, 2016
Tunas are highly specialized predators that have evolved numerous adaptations for a lifestyle that requires large amounts of energy consumption. Here we review our understanding of the bioenergetics and feeding dynamics of tunas on a global scale, with an emphasis on yellowfin, bigeye, skipjack, albacore, and Atlantic bluefin tunas.
Olson, R. J.   +7 more
openaire   +4 more sources

Trophic ecology and niche overlap of two sympatric species of Rhamdia (Siluriformes, Heptapteridae) from northeast Oaxaca, Mexico [PDF]

open access: yesNeotropical Biology and Conservation
The trophic ecology of fishes in the genus Rhamdia remains poorly reported. Here, we aim to describe the diet composition and infer the trophic levels, niche breadth, and niche overlap between Rhamdia guatemalensis and Rhamdia laticauda in northeast ...
César Camilo Julián-Caballero   +3 more
doaj   +3 more sources

Anthropogenic nutrient loading affects both individual species and the trophic structure of river fish communities

open access: yesFrontiers in Ecology and Evolution, 2023
Although the concept of trophic interactions has been used for a long time, there are still considerable gaps in our understanding of the effect of various environmental factors on trophic interactions within river fish assemblages.
Petra Horka   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy