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Full-Text Articles in Life Sciences
Estimating Growth Of Caribbean Spiny Lobster Using Mark–Recapture Data, Yuying Zhang, Nan Yao
Estimating Growth Of Caribbean Spiny Lobster Using Mark–Recapture Data, Yuying Zhang, Nan Yao
Department of Biological Sciences
To estimate the growth of the hard‐to‐age Caribbean spiny lobster Panulirus argus in the southeastern USA, a double‐maximum‐likelihood‐estimation method (referred to as the “likelihood model”) has been applied to the mark–recapture data collected in the Florida Keys from 1967 to 2003. Parameters related to the intermolt period and the growth increment have been assessed, and the uncertainty of the parameters has been estimated using the bootstrap resampling method. For better comparison with the previously published step‐wise growth models, an individual‐based model, in which the variance and covariance of model parameters were fully considered, has been developed to simulate growth transition …
Interactive Effects Of Herbivory And Substrate Orientation On Algal Community Dynamics On A Coral Reef, Alain Duran, Ligia Collado-Vides, L. Palma, D. E. Burkepile
Interactive Effects Of Herbivory And Substrate Orientation On Algal Community Dynamics On A Coral Reef, Alain Duran, Ligia Collado-Vides, L. Palma, D. E. Burkepile
Department of Biological Sciences
Herbivory is a significant driver of algal community dynamics on coral reefs. However, abiotic factors such as the complexity and orientation of the benthos often mediate the impact of herbivores on benthic communities. We experimentally evaluated the independent and interactive effects of substrate orientation and herbivorous fishes on algal community dynamics on a coral reef in the Florida Keys, USA. We created horizontal and vertical substrates, mimicking the trend in the reduction of vertical surfaces of coral reefs, to assess how algal communities developed either with herbivory (open areas) or without herbivory (herbivore exclosures). We found that substrate orientation was …