Results 31 to 40 of about 558,694 (351)

Sponge distribution and the presence of photosymbionts in Moorea, French Polynesia [PDF]

open access: yesPeerJ, 2016
Photosymbionts play an important role in the ecology and evolution of diverse host species within the marine environment. Although sponge-photosymbiont interactions have been well described from geographically disparate sites worldwide, our understanding
Christopher J. Freeman, Cole G. Easson
doaj   +2 more sources

Applying trait-based models to achieve functional targets for theory-driven ecological restoration [PDF]

open access: yes, 2014
Manipulating community assemblages to achieve functional targets is a key component of restoring degraded ecosystems. The response-and-effect trait framework provides a conceptual foundation for translating restoration goals into functional trait targets,
Laughlin, Daniel C.
core   +2 more sources

Relationships between body size and abundance in ecology

open access: yesTrends in Ecology & Evolution, 2007
Body size is perhaps the most fundamental property of an organism and is related to many biological traits, including abundance. The relationship between abundance and body size has been extensively studied in an attempt to quantify the form of the relationship and to understand the processes that generate it.
White, Ethan P.   +3 more
openaire   +5 more sources

Long term changes in aquaculture influence migration, regional abundance, and distribution of an avian species.

open access: yesPLoS ONE, 2023
Agricultural development has been causing changes to the environment and the abundance and distribution of avian species. Agriculture is dynamic with changes in products occurring at large scales over relatively short time periods.
Paul C Burr   +4 more
doaj   +2 more sources

Rainfall but not selective logging affect changes in abundance of tropical forest butterfly in Sabah, Borneo [PDF]

open access: yes, 2003
We investigated the effects of rainfall on the distribution and abundance of the satyrine butterfly Ragadia makuta in selectively logged and unlogged forest on Borneo. In 1997-98, there was a severe El Nino-Southern Oscillation (ENSO) drought, and annual
Chey, V K   +4 more
core   +1 more source

SUMMER ABUNDANCE AND ECOLOGY OF ZOOPLANKTON IN THE GULF STREAM

open access: yesThe Biological Bulletin, 1975
We have described the results of laboratory analyses of 42 horizontal tows using a Clarke-Bumpus plankton sampler with a 100 µ emmesh net in the Gulf Stream. Classifications of 20 zooplankton taxa have been made for the 42 hauls. Calanoids dominate the hauls. It was found that the zooplankton population distribution and density varied considerably from
W G, Egan, J E, Conrad
openaire   +3 more sources

The structure of ant–plant ecological networks: Is abundance enough? [PDF]

open access: yesEcology, 2014
Knowledge of the mechanisms that shape biodiversity is essential to understand the ecological and evolutionary dynamics of interacting species. Recent studies posit that most of the organization of mutualistic networks is shaped by differences in species abundance among interacting species. In this study, we examined the mutualism involving plants with
Wesley, Dattilo   +3 more
openaire   +2 more sources

Evolution of Resource Competition between Mutually Dependent Digital Organisms [PDF]

open access: yes, 2004
We study the emergence and dynamics of competing strains of digital organisms in a world with two depletable resources. Consumption of one resource produces the other resource as a by-product, and vice versa.
Johnson, Tyler J., Wilke, Claus O.
core   +1 more source

Ecological niche structure and rangewide abundance patterns of species [PDF]

open access: yesBiology Letters, 2013
Spatial abundance patterns across species' ranges have attracted intense attention in macroecology and biogeography. One key hypothesis has been that abundance declines with geographical distance from the range centre, but tests of this idea have shown that the effect may occur indeed only in a minority of cases.
Enrique, Martínez-Meyer   +3 more
openaire   +2 more sources

Long-term monitoring of the fish community in the Minho Estuary (NW Iberian Peninsula) [PDF]

open access: yesBiodiversity Data Journal
The paper presents an extensive fish sampling dataset spanning a long-term period from 2010 to 2019. The data were collected in Lenta Marina, an upstream area in the Minho Estuary of the NW Iberian Peninsula, which belongs to a LTSER (Long-Term Socio ...
Allan Souza   +11 more
doaj   +3 more sources

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