Results 21 to 30 of about 4,256,851 (341)
Robust Patterns in Food Web Structure [PDF]
We analyze the properties of seven community food webs from a variety of environments--including freshwater, marine-freshwater interfaces and terrestrial environments.
American Physical Society +3 more
core +3 more sources
Food webs in forest and pasture streams in the Waikato region, New Zealand: A study based on analyses of stable isotopes of carbon and nitrogen, and fish gut contents. [PDF]
Stable isotopes of carbon (C) and nitrogen (N) were studied in 11 stream communities in the Waikato region of New Zealand. From comparisons of mean d13C and d15N values, food webs in the shaded, forest streams were clearly based on allochthonous material
Biggs B., Lester P. J., Main M. L.
core +2 more sources
What's in a tide pool? Just as much food web network complexity as in large open ecosystems.
Understanding the fundamental laws that govern complex food web networks over large ecosystems presents high costs and oftentimes unsurmountable logistical challenges.
Vanessa Mendonça +9 more
doaj +1 more source
Aquatic, amphibious, and terrestrial organisms in or around a pond that was contaminated by e-waste were collected and persistent halogenated organic pollutants (HOPs) for these species were analyzed.
Yu Liu +6 more
doaj +1 more source
Local stability properties of complex, species‐rich soil food webs with functional block structure
Ecologists have long debated the properties that confer stability to complex, species‐rich ecological networks. Species‐level soil food webs are large and structured networks of central importance to ecosystem functioning.
Francisco deCastro +18 more
doaj +1 more source
Both dynamic and topologic approaches in food webs have shown how structure alters conditions for stability. However, while most studies concerning the structure of food webs have shown a nonrandom pattern, it still remains unclear how this structure is related to compartmentalization and to responses to perturbations. Here we build a bridge
Melián, Carlos J., Bascompte, Jordi
openaire +2 more sources
Understanding food webs environmental condition is a challenging task since evaluations are limited by data on key ecosystem elements, by the availability of indicators that incorporate relevant guilds and by the difficulty in establishing cause-effect ...
Inês Machado +4 more
doaj +1 more source
Deleting species from model food webs [PDF]
We use food webs generated by a model to investigate the effects of deleting species on other species in the web and on the web as a whole. The model incorporates a realistic population dynamics, adaptive foragers and other features which allow for the ...
Abrams +43 more
core +3 more sources
The impact of 850,000 years of climate changes on the structure and dynamics of mammal food webs. [PDF]
Most evidence of climate change impacts on food webs comes from modern studies and little is known about how ancient food webs have responded to climate changes in the past. Here, we integrate fossil evidence from 71 fossil sites, body-size relationships
Hedvig K Nenzén +2 more
doaj +1 more source
Threatened freshwater ecosystems urgently require improved tools for effective management. Food web analysis is currently under-utilized, yet can be used to generate metrics to support biomonitoring assessments by measuring the stability and robustness ...
Zacchaeus G. Compson +22 more
doaj +1 more source

