Results 81 to 90 of about 30,362 (237)

What does measuring species diversity in estuarine seagrass systems actually assess?

Marine Environmental Research, 2021
Relationships between species diversity and other species-density and species-richness metrics were investigated in the seagrass macrobenthos of Knysna estuarine bay, South Africa. Although a wide range of species density occurred across sites, neither Hill-Shannon nor Hill-Simpson diversity showed any significant relationship with it, although they ...
openaire   +3 more sources

Temporal patterns of grazers and vegetation in a temperate seagrass system [PDF]

Aquatic Botany, 1995
Abstract The densities of benthic vegetation and invertebrate grazers were monitored in the seagrass system dominated by Zostera marina L. and Zostera japonica Aschers. & Graebn. in Padilla Bay, Washington. The primary invertebrate grazers included the isopod Idotea resecata Stimpson, caprellid amphipods and the gastropod Lacuna variegata ...
Ronald Thom, Bruce Miller, Michael Kennedy   +2 more
openaire   +1 more source

Evaluating methods for high‐resolution, national‐scale seagrass mapping in Google Earth Engine

Remote Sensing in Ecology and Conservation, EarlyView.
Marine habitat mapping using satellite imagery can provide baseline and monitoring data across large spatial scales and in remote locations globally. This study evaluates how key methodological choices influence the accuracy of open‐source (for non‐commercial use), cloud‐based satellite mapping workflows for seagrass meadows in the Maldives.
Matthew Floyd, Holly K. East, Andrew J. Suggitt   +2 more
wiley   +1 more source

Mapping and classification of ecologically sensitive marine habitats using unmanned aerial vehicle (UAV) imagery and object-based image analysis (OBIA) [PDF]

, 2018
Nowadays, emerging technologies, such as long-range transmitters, increasingly miniaturized components for positioning, and enhanced imaging sensors, have led to an upsurge in the availability of new ecological applications for remote sensing based on ...
Ardizzone, Domenico, Belluscio, Andrea, Bonifazi, Andrea, Gravina, Maria Flavia, Ventura, Daniele   +4 more
core   +1 more source

Mobile consumers influence the shoreward edge of intertidal seagrass ecosystems

Journal of Animal Ecology, EarlyView.
Ecological paradigms suggest that the environmentally stressful edge of a habitat is determined by physical factors. The work finds that, counter to these paradigms, an environmentally stressful edge can also be impacted by biotic interactions and are more complex than suggested.
Stephanie R. Valdez, Carter S. Smith, Catherine L. Brenner, Avery B. Paxton, Brian R. Silliman   +4 more
wiley   +1 more source

Nonlinear Dynamics and Alternative Stable States in Shallow Coastal Systems [PDF]

Oceanography, 2013
The dynamics of shallow-water coastal environments are controlled by external drivers—sea level rise, storms, and sediment and nutrient supplies—and by internal feedbacks. Interactions of biotic processes (vegetation growth, trophic dynamics) and abiotic
Karen J. McGlathery, Matthew A. Reidenbach, Paolo D'Odorico, Sergio Fagherazzi, Michael L. Pace, John H. Porter   +5 more
doaj   +1 more source

Home range and habitat use by Kemp's Ridley turtles in West-Central Florida [PDF]

, 2003
The Kemp's ridley turtle (Lepidochelys kempii) is an endangered species whose recovery depends in part on the identification and protection of required habitats.
Bjorndal, Karen A., Bolten, Alan B., Lindberg, William J., Percival, H. Franklin, Schmid, J.R., Zwick, Paul D.   +5 more
core   +1 more source

Assessment of ecosystem status in Mozambique and implications for environmental planning

Conservation Science and Practice, EarlyView.
We assess Mozambique's terrestrial ecosystems using the IUCN Red List of Ecosystems framework, showing that more than half of Mozambique's ecosystems are threatened, with impacts primarily concentrated in temperate subhumid grasslands and pyric tussock savannas.
Kendall R. Jones, Mervyn Lötter, Hugo M. Costa, Gautam Surya, Vanessa Rathbone, Hermenegildo Matimele, Eleutério Duarte, Tereza Alves, Célia Macamo, Denise Nicolau, Muri G. Soares, Roberto Zolho, Hedley S. Grantham   +12 more
wiley   +1 more source

Caribbean-wide, long-term study of seagrass beds reveals local variations, shifts in community structure and occasional collapse.

PLoS ONE, 2014
The CARICOMP monitoring network gathered standardized data from 52 seagrass sampling stations at 22 sites (mostly Thalassia testudinum-dominated beds in reef systems) across the Wider Caribbean twice a year over the period 1993 to 2007 (and in some cases
Brigitta I van Tussenbroek, Jorge Cortés, Rachel Collin, Ana C Fonseca, Peter M H Gayle, Hector M Guzmán, Gabriel E Jácome, Rahanna Juman, Karen H Koltes, Hazel A Oxenford, Alberto Rodríguez-Ramirez, Jimena Samper-Villarreal, Struan R Smith, John J Tschirky, Ernesto Weil   +14 more
doaj   +1 more source

Seagrass can mitigate negative ocean acidification effects on calcifying algae [PDF]

, 2019
The ultimate effect that ocean acidification (OA) and warming will have on the physiology of calcifying algae is still largely uncertain. Responses depend on the complex interactions between seawater chemistry, global/local stressors and species-specific
A Buosi, A Wizemann, BC Davis, CDG Harley, CE Cornwall, CED Noriega, D Britton, DWJ Thompson, F Valladares, FW Meyer, FW Meyer, G Duarte, G Schneider, GE Hofmann, HN Page, IE Hendriks, IS Semesi, J-P Gattuso, JB Ries, JE Campbell, JE Campbell, JE Campbell, JRM Chisholm, K Caldeira, KE Peach, KE Peach, KFU Richard, KJ Kroeker, KJ Kroeker, KJ Kroeker, L Robbins, L-M Chevin, LC Hofmann, LP Gouvêa, LT Bach, LW Tait, M Koch, M Takahashi, MA Borowitzka, MA Borowitzka, MA Borowitzka, MD Johnson, ME Bandeira-Pedrosa, ME Hay, N Gruber, N Vogel, N Vogel, NN Price, O Invers, R Wollast, S Beer, S Comeau, S Sinutok, S Sinutok, SC Barry, SL Palacios, T Cyronak, T Cyronak, T Labasque, TBH Reusch, Y Yang, YX Ow   +61 more
core   +2 more sources