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Do species' strategies and type of stress predict net positive effects in an arid ecosystem?
(Ecological Society of America, 2017-03)
A proposed refinement to the stress-gradient hypothesis requires consideration of the strategies of the interacting species and the characteristics of the stress factors. While the strength and direction of these interactions ...
Testing the role of biotic stress in the stress gradient hypothesis. Processes and patterns in arid rangelands
(Wiley Blackwell Publishing, Inc, 2011-06)
Since many arid ecosystems are overstocked with domestic herbivores, biotic stress could have a stronger influence in modulating the balance of species interactions than expected from the stress gradient hypothesis (SGH). ...
Plant–plant co-occurrences under a complex land-use gradient in a temperate forest
(Springer, 2021-06)
Land-use generates multiple stress factors, and we need to understand their efects on plant–plant interactions to predict the consequences of land-use intensifcation. The stress–gradient hypothesis predicts that the relative ...
Stress-gradient hypothesis and plant distribution along ecotonal gradients
(Wiley Blackwell Publishing, Inc, 2018-11)
The stress-gradient hypothesis (SGH) predicts that, although facilitation and competition occur together, facilitative interactions will be more prevalent with increasing abiotic stress. In water-limited ecosystems, support ...
Social instability promotes hormone-behavior associated patterns in a cichlid fish
(Elsevier B.V., 2014-07-01)
Androgens are known to respond to social challenges and to control the expression of social behavior and reproductive traits, such as gonadal maturation and sperm production, expression of secondary sex characters and ...
Plant interactions balance under biotic and abiotic stressors: The importance of herbivory in semi-arid ecosystems
(Springer, 2020-10)
Biotic and abiotic stressors commonly co-occur in plant communities and influence interactions between plants. However, their combined effects on plant interactions have not been widely studied and are still unclear. Here, ...
Same-sized fish groups increase aggressive interaction of sex-reversed males Nile tilapia GIFT strain
(Elsevier B.V., 2011-11-30)
Animals with similar fighting ability can fight harder and longer than animals in asymmetric contests. Thus, the selection of fish by size similarity in husbandry might increase aggressive interactions, and lead to social ...
Same-sized fish groups increase aggressive interaction of sex-reversed males Nile tilapia GIFT strain
(Elsevier B.V., 2011-11-30)
Animals with similar fighting ability can fight harder and longer than animals in asymmetric contests. Thus, the selection of fish by size similarity in husbandry might increase aggressive interactions, and lead to social ...
Annual plant functional traits explain shrub facilitation in a desert community
(Wiley Blackwell Publishing, Inc, 2016-01)
Question: For a desert where winter is the driest, harshest season we asked: does the effect of dominant shrubs (Bulnesia retama) on annual species depend on (1) the functional traits of the latter, (2) the season of the ...