Search
Search Results
-
Method choice affects estimates of diet and niche breadth for small stream fish
The diet of fish from Arctic tundra streams was analyzed to compare the efficacy of (1) morphological gut content analysis, (2) DNA metabarcoding,...
-
Tree hydrological niche acclimation through ontogeny in a seasonal Amazon forest
How tropical plants cope with water availability has important implications for forest resilience, as severe drought events are expected to increase...
-
Elucidating the role of competition in driving spatial and trophic niche patterns in sympatric juvenile sharks
The coexistence of ecologically and morphologically similar species is often facilitated by the partitioning of ecological niches. While subordinate...
-
Abundance, isotopic amplitude, and pups body mass of California sea lions (Zalophus californianus) from the Southwest Gulf of California during anomalous warming events
The California sea lion ( Zalophus californianus ) population in the Gulf of California has shown a significant abundance decline. However, its 13...
-
Trophic niche segregation between the sympatric tunas Thunnus alalunga and Katsuwonus pelamis in the Gulf of Cadiz (East Atlantic)
This study presents information about trophic relationships between juvenile albacore (ALB, Thunnus alalunga ) and skipjack tuna (SKJ, Katsuwonus...
-
Feeding niche overlap between native and alien fishes in Swat River, Khyber Pakhtunkhwa, Pakistan
One of the major causes of biodiversity loss in freshwater ecosystems is the introduction of alien species. The common carp has been established in...
-
Agriculture induces isotopic shifts and niche contraction in Horned Larks (Eremophila alpestris) of the Colorado Desert
Agriculture can dramatically alter community composition, food webs, and resource availability, yet the impacts of agriculture on many ecosystems and...
-
Pelagic niche shift by fishes following restorations of a eutrophic lake
Lake restoration by biomanipulation or phosphorus fixation has been commonly applied methods to improve the ecological status of lakes. However, the...
-
Trophic niche partitioning of Mekong giant catfish Pangasianodon gigas in a tropical reservoir: evidence from stable isotope and fatty acid analyses
Large-bodied animals, such as the Mekong giant catfish ( Pangasianodon gigas ), may modify prey communities and affect their potential competitors for...
-
Plant Competition Across Topographic Gradients in Neotropical Cerrado Savannas: An Isotopic Approach
The Cerrado is the second most extensive biome in South America, encompassing a series of plant physiognomies, which normally form gradients of tree...
-
Individual variability in habitat, migration routes and niche used by Trindade petrels, Pterodroma arminjoniana
Individual variability within a population and the eventual repeatability across time and space may provide stability in a population facing...
-
Trophic interactions and isotopic niche of octopuses and sea stars in North Patagonia
Coexistence of species is associated with differentiation of niches and partitioning of resources, which lessen niche overlap and the intensity of...
-
What a sucking louse can tell us: the use of the seal lice (Lepidophthirus macrorhini) from the southern elephant seal (Mirounga leonina) in isotopic analysis of hosts
The southern elephant seal, Mirounga leonina , is one of the top predators inhabiting the Southern Ocean. Foraging at sea represents 80% of their...
-
Food web structure and isotopic niche in a fringe macro-tidal mangrove system, Tropical Eastern Pacific
Tropical mangroves are amongst the most productive and dynamic ecosystems on Earth. In order to understand the trophic dynamics of estuarine mangrove...
-
Trophic relationships of translocated and indigenous chub Squalius cephalus populations with trophically analogous fishes
The translocation of non-indigenous fishes into lowland rives can result in invasive populations establishing and dispersing. Because non-indigenous...
-
-
Trophic positions and niche segregation of two anuran species in the ecosystem of a forest lake
Different species of amphibians often breed in the same water bodies and their diets overlap. Theoretically, this might lead to a competitive...
-
Multi-isotope (δ2H, δ13C, δ15N) feather profiles and morphometrics inform patterns of migratory connectivity in three species of North American swallows
Aerial insectivorous birds have suffered steep population declines in North America over the last 60 years. A lack of information on migratory...
-
Differences in above-ground resource acquisition and niche overlap between a model invader (Phragmites australis) and resident plant species: measuring the role of fitness and niche differences in the field
Identifying the mechanisms that result in a “high impact” invasive species can be difficult. Coexistence theory suggests that detrimental invasive...
-
A palmitate-rich metastatic niche enables metastasis growth via p65 acetylation resulting in pro-metastatic NF-κB signaling
Metabolic rewiring is often considered an adaptive pressure limiting metastasis formation; however, some nutrients available at distant organs may...
