Results 151 to 160 of about 277,393 (289)

Trophic ecology of sooty albatross, segregating mechanisms from the congeneric light-mantled sooty albatross, and conservation implications

open access: yesEndangered Species Research
The trophic ecology of the Endangered sooty albatross (SA, 4 populations) was investigated using the concept of isotopic niche as a proxy of the trophic niche, and its isotopic metrics were compared with those of the congeneric Near Threatened light ...
Y Cherel   +6 more
doaj   +1 more source

Trophic niche, age structure and seasonality in Dolichopoda cave crickets

open access: yes, 1995
Shifts in feeding habits are expected to occur during adaptation to cave life. Dolichopoda cave crickets inhabit both natural and artificial caves showing differences in population size, fecundity, phenology and age structure.
SBORDONI, VALERIO   +9 more
core   +1 more source

A plant–pollinator invasional meltdown: the Japanese pagoda tree Styphnolobium japonicum facilitates the invasion of the giant resin bee Megachile sculpturalis

open access: yesOikos, EarlyView.
An invasional meltdown can occur when a non‐native species facilitates the spread of another non‐native species in the invaded area, increasing its likelihood of survival or its ecological impact. Plant–pollinator systems pose an exceptional study system to test this concept, which remains poorly known.
Daniel Echeandía   +9 more
wiley   +1 more source

Plasticity and overlap of trophic niches in tropical breeding Laridae

open access: yesMarine Ecology Progress Series
Trophic ecology of seabirds in tropical regions remains poorly understood despite the large number of multispecies breeding colonies supported by these ecosystems. Here, we used the isotopic niche (δ15N and δ13C) of 5 Laridae species at 2 breeding areas in Cuba to analyze the plasticity and interspecific overlap of trophic niche determined from chick ...
Garcia-Quintas, Antonio   +5 more
openaire   +3 more sources

SEGMENTATION AND DIFFERENTIATION OF AGRI-FOOD NICHE MARKETS: EXAMPLES FROM THE LITERATURE [PDF]

open access: yes
Niche marketing has recently received a great deal of attention in the agri-food trade press and in academic circles as a legitimate strategy for small- and medium-sized agri-food firms.
Phillips, Jon C.   +1 more
core  

Life‐history traits and phylogeny structure taxon‐specific species–substrate relationships in deadwood

open access: yesOikos, EarlyView.
To understand the structuring of species assemblages, integrating life‐history traits and evolutionary heritage in analyses is vital. This allows the assessment of a mechanistic link between species and their environment. Deadwood systems are vital for nutrient cycling and biodiversity support, governed by complex intra‐ and inter‐specific fungal and ...
Albin Larsson Ekström   +4 more
wiley   +1 more source

Unshared on the top: strong segregation of pathogen communities between western honey bees and wild bees in a retreating glacier foreland

open access: yesOikos, EarlyView.
Shared flowers can facilitate pathogen transmission between managed honey bees and wild bees, yet this process remains poorly understood in ecosystems undergoing rapid environmental change. Using a glacier foreland in Switzerland, we present the first study on how glacier retreat stages and bee life‐history traits influence pathogen occurrence across ...
Andrea Ferrari   +6 more
wiley   +1 more source

Context-dependent parasite infection affects trophic niche in populations of sympatric stickleback species. [PDF]

open access: yesParasitology, 2022
Thorburn DJ   +5 more
europepmc   +1 more source

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