ORCID Profile
0000-0001-9543-4589
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: Wiley
Date: 11-08-2020
DOI: 10.1111/MAEC.12609
Abstract: The benthic assemblage of reefs provides an important resource of food and habitat for reef fishes. However, how benthic composition mediates reef fishes' biotic interactions at isolated environments such as oceanic islands remains largely unknown. Here, we aimed to investigate the role of four different reef microhabitats over biological interactions of fishes in an understudied oceanic island, Príncipe Island. For that, we recorded a total of 46 Underwater Remote Videos (RUVs) to document benthic composition and fishes' trophic and agonistic interactions. We used benthic cover estimates to group the s les into four microhabitats (dominated by epilithic algal matrix [EAM], sand/rock, corals and sponges), then quantified fishes' trophic and agonistic interactions in each microhabitat. All microhabitats presented a different structure of trophic and agonistic interactions of the fish assemblage. Feeding pressure (FP) and agonistic interactions were higher on the EAM microhabitat and lower in coral microhabitat. Herbivores were the main responsible group for the FP in all microhabitats. Territorial damselfishes used microhabitats differently for both trophic and agonistic interactions. We demonstrated that reef fish ersity and intensity of biotic interactions varied according the spatial distribution of benthic resources, which suggests that benthic composition plays an important role on structuring biological interactions at isolated reef systems.
Publisher: Springer Science and Business Media LLC
Date: 2016
Publisher: Wiley
Date: 08-08-2021
Abstract: Consumption rates constitute a fundamental, yet relatively elusive quantity in ecophysiology and ecosystem ecology. Measuring consumption rates of highly mobile animals is often challenging, especially in the wild, which makes scientists rely on proxies such as bite rates. However, we still lack a theoretical framework that formally bridges these quantities. Here we expanded a model based on the Metabolic Theory of Ecology to quantitatively characterise how consumption rates are related to bite rates, and predict how the latter should change with body size, temperature and diet. We test our predictions using mensurative experiments from eight populations of redlip blennies—genus Ophioblennius —across the Atlantic Ocean. Bite rates scaled with body size according to our theoretical predictions. On the other hand, they increased at a faster‐than‐predicted rate with rising temperatures. This finding might be explained if the energetic content of Ophioblennius spp. diet—which is primarily composed by detritus across all populations—decreases with temperature. Yet, they seem to be consistent with the idea that populations adapted to warmer environments exhibit higher‐than‐expected grazing pressure on primary producers. Current ocean warming is set to skew body size distributions towards smaller sizes, and our model indicates that the combined effects of smaller sizes and higher temperatures will increase mass‐specific consumption rates, with direct implications for how energy flows through food webs.
Publisher: Public Library of Science (PLoS)
Date: 10-06-2015
Publisher: Springer Science and Business Media LLC
Date: 15-05-2017
Publisher: Springer Science and Business Media LLC
Date: 04-07-2020
Publisher: Springer Science and Business Media LLC
Date: 07-04-2022
No related grants have been discovered for Lucas Nunes Teixeira.