Results 81 to 90 of about 164,347 (318)

Spatial dietary differentiation and trophic variation in Gymnocypris chilianensis across three watersheds of the Hexi Corridor

open access: yesJournal of Freshwater Ecology
Gymnocypris chilianensis is an endemic cyprinid fish distributed across three major watersheds – Shiyang, Heihe and Shule Rivers – within the Hexi Corridor on the northeastern Qinghai-Tibetan Plateau.
Dan Song   +5 more
doaj   +1 more source

A dataset on African bats’ functional traits

open access: yesScientific Data, 2023
Trait-based approaches are becoming extremely common in ecological modeling and the availability of traits databases is increasing. However, data availability is often biased towards particular regions and taxa, with many taxa (e.g., bats) often under ...
Francesca Cosentino   +2 more
doaj   +1 more source

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988

open access: yesThe Anatomical Record, EarlyView.
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis   +4 more
wiley   +1 more source

Long-term change in benthopelagic fish abundance in the abyssal northeast Pacific Ocean [PDF]

open access: yes, 2006
Food web structure, particularly the relative importance of bottom-up and top-down control of animal abundances, is poorly known for the Earth's largest habitats: the abyssal plains.
Bailey, D.M., Ruhl, H.A., Smith, K.
core   +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

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

Dinner Time in the Atlantic Forest: Trophic Niche Partitioning of Two Sympatric Boana Species in the Southern Bahia State, Brazil

open access: yesActa Herpetologica
Understanding the ecological traits of species, such as dietary habits, is important for elucidating their natural history and ecological interactions.
Amanda Sabino Martins   +5 more
doaj   +1 more source

Nitrogen and phosphorus limitation of phytoplankton growth in New Zealand lakes: Implications for eutrophication control [PDF]

open access: yes, 2010
We examine macronutrient limitation in New Zealand (NZ) lakes where, contrary to the phosphorus (P) only control paradigm, nitrogen (N) control is widely adopted to alleviate eutrophication.
Abell, Jonathan Michael   +2 more
core   +1 more source

Adaptive and Biochemical Responses of Dictyosphaerium sp. AM‐2024a to Environmental Conditions and Microplastic Interactions: Synergy of Biofuel Production With Pollution Mitigation

open access: yesBiotechnology and Applied Biochemistry, EarlyView.
ABSTRACT This study investigates the physiological and biochemical responses of a newly isolated microalgal strain, Dictyosphaerium sp. AM‐2024a, identified through 18S rDNA sequencing, under varying environmental conditions and microplastic (MP) interactions.
Khushboo Iqbal   +2 more
wiley   +1 more source

Individual Specialization in a Generalist Apex Predator: The Leopard Seal

open access: yesEcology and Evolution
Apex predators are typically considered dietary generalists, which often masks individual variability. However, individual specialization—consistent differences among individuals in resource use or ecological role—is common in apex predators.
Emily S. Sperou   +12 more
doaj   +1 more source

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