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Study of Spatiotemporal Changes and Driving Factors of Habitat Quality: A Case Study of the Agro-Pastoral Ecotone in Northern Shaanxi, China. SUSTAINABILITY 2022. [DOI: 10.3390/su14095141] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Habitat quality is a key indicator for assessing the biodiversity-maintenance functions of ecosystem services. The issue of habitat quality changes in semi-arid and arid areas has been becoming serious, but there are few deep investigations of habitat quality in these regions, such as studies of the temporal and spatial changes of habitat quality and its driving forces. This study focuses on the agro-pastoral ecotone of northern Shaanxi with vulnerable biodiversity. By using the Fragstats software, the InVEST model, and the Geo-detector model, we analyzed land-use data collected from 1990, 2000, 2010, and 2020, and we explored the landscape pattern index, the spatial and temporal variation of habitat quality, and the influence of its drivers. GDP, population density, precipitation, temperature, land use, NDVI, elevation, and slope were detected by Geo-detector. The research results show that: (1) Arable land and grassland were the dominant land types from 1990 to 2020, and there was significant mutual circulation between arable land and grassland. Forest area increased by 24%. Many other land-use types were transformed into construction land, and construction land increased by 727% compared with the base period. (2) Landscape heterogeneity increased in the study region, shown by the fractured structure of the overall landscape and by the aggravated human disturbance of the landscape. (3) Average habitat quality underwent a trend of oscillation. Regarding spatial distribution, habitat quality was higher in the east than in the west. (4) The influencing factors of habitat quality monitored by Geo-detectors show that the driving force of land use on habitat quality was the strongest, followed by precipitation and vegetation coverage. Elevation, slope, GDP, and population density had the least influence on habitat quality. The bi-factor interaction enhanced habitat quality to different levels. This study is critical to the conservation of biodiversity and to ecological civilization construction in arid and semi-arid regions.
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Thiault L, Collin A, Chlous F, Gelcich S, Claudet J. Combining participatory and socioeconomic approaches to map fishing effort in small-scale fisheries. PLoS One 2017; 12:e0176862. [PMID: 28486509 PMCID: PMC5423602 DOI: 10.1371/journal.pone.0176862] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 04/18/2017] [Indexed: 12/02/2022] Open
Abstract
Mapping the spatial allocation of fishing effort while including key stakeholders in the decision making process is essential for effective fisheries management but is difficult to implement in complex small-scale fisheries that are diffuse, informal and multifaceted. Here we present a standardized but flexible approach that combines participatory mapping approaches (fishers’ spatial preference for fishing grounds, or fishing suitability) with socioeconomic approaches (spatial extrapolation of social surrogates, or fishing capacity) to generate a comprehensive map of predicted fishing effort. Using a real world case study, in Moorea, French Polynesia, we showed that high predicted fishing effort is not simply located in front of, or close to, main fishing villages with high dependence on marine resources; it also occurs where resource dependency is moderate and generally in near-shore areas and reef passages. The integrated approach we developed can contribute to addressing the recurrent lack of fishing effort spatial data through key stakeholders' (i.e., resource users) participation. It can be tailored to a wide range of social, ecological and data availability contexts, and should help improve place-based management of natural resources.
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Affiliation(s)
- Lauric Thiault
- National Center for Scientific Research, PSL Research University, CRIOBE, USR 3278 CNRS-EPHE-UPVD, PSL Research University, Perpignan, France
- Laboratoire d'Excellence CORAIL, France
- Museum National d’Histoire Naturelle, PALOC, UMR 208 MNHN-IRD, Paris, France
- Center of Applied Ecology and Sustainability, Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- * E-mail:
| | - Antoine Collin
- Laboratoire d'Excellence CORAIL, France
- PSL University—EPHE, CNRS Prodig, Dinard, France
| | - Frédérique Chlous
- Museum National d’Histoire Naturelle, PALOC, UMR 208 MNHN-IRD, Paris, France
| | - Stefan Gelcich
- Center of Applied Ecology and Sustainability, Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Joachim Claudet
- National Center for Scientific Research, PSL Research University, CRIOBE, USR 3278 CNRS-EPHE-UPVD, PSL Research University, Perpignan, France
- Laboratoire d'Excellence CORAIL, France
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Goldstein ED, D'Alessandro EK, Reed J, Sponaugle S. Habitat availability and depth‐driven population demographics regulate reproductive output of a coral reef fish. Ecosphere 2016. [DOI: 10.1002/ecs2.1542] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- E. D. Goldstein
- Department of Marine Biology and EcologyRosenstiel School of Marine and Atmospheric ScienceUniversity of Miami Miami Florida 33149 USA
| | - E. K. D'Alessandro
- Department of Marine Biology and EcologyRosenstiel School of Marine and Atmospheric ScienceUniversity of Miami Miami Florida 33149 USA
| | - J. Reed
- Harbor Branch Oceanographic InstituteFlorida Atlantic University Fort Pierce Florida 34946 USA
| | - S. Sponaugle
- Department of Integrative BiologyHatfield Marine Science CenterOregon State University Newport Oregon 97365 USA
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Cabral RB, Gaines SD, Lim MT, Atrigenio MP, Mamauag SS, Pedemonte GC, Aliño PM. Siting marine protected areas based on habitat quality and extent provides the greatest benefit to spatially structured metapopulations. Ecosphere 2016. [DOI: 10.1002/ecs2.1533] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Reniel B. Cabral
- Sustainable Fisheries GroupBren School of Environmental Science and Management and Marine Science InstituteUniversity of California Santa Barbara California 93106 USA
- National Institute of PhysicsUniversity of the Philippines, Diliman 1101 Quezon City Philippines
- Marine Science InstituteUniversity of the Philippines, Diliman 1101 Quezon City Philippines
| | - Steven D. Gaines
- Sustainable Fisheries GroupBren School of Environmental Science and Management and Marine Science InstituteUniversity of California Santa Barbara California 93106 USA
| | - May T. Lim
- National Institute of PhysicsUniversity of the Philippines, Diliman 1101 Quezon City Philippines
| | - Michael P. Atrigenio
- Marine Science InstituteUniversity of the Philippines, Diliman 1101 Quezon City Philippines
| | - Samuel S. Mamauag
- Marine Science InstituteUniversity of the Philippines, Diliman 1101 Quezon City Philippines
| | - Gerold C. Pedemonte
- National Institute of PhysicsUniversity of the Philippines, Diliman 1101 Quezon City Philippines
| | - Porfirio M. Aliño
- Marine Science InstituteUniversity of the Philippines, Diliman 1101 Quezon City Philippines
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Figueroa-Pico J, Valle DMD, Castillo-Ruperti R, Macías-Mayorga D. Marine debris: Implications for conservation of rocky reefs in Manabi, Ecuador (Se Pacific Coast). MARINE POLLUTION BULLETIN 2016; 109:7-13. [PMID: 27263979 DOI: 10.1016/j.marpolbul.2016.05.070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 05/25/2016] [Accepted: 05/26/2016] [Indexed: 06/05/2023]
Abstract
Marine debris (MD) pollution is a problem of global concern because of its impact on marine ecosystems. The current extent of this problem and its implications concerning reef conservation are unknown in Ecuador. The composition and distribution of submerged MD was assessed on two reefs using underwater surveys of geomorphological areas: crest, slope and bottom. MD items were classified according to source and use. Plastic-derived debris represents >90% of total MD found on the reefs, principally composed by plastic containers and nets. 63% of the MD was associated to fishing activities. The composition showed differences between sites and geomorphological areas, monofilament nets were found on the crests, multifilament lines on the slopes and plastic containers on the bottom. MD disposal might be a result of the influx of visitors and fishing activities. Distribution is related to bottom type, level of boating/fishing activity and benthic features.
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Affiliation(s)
- Juan Figueroa-Pico
- Departamento Central de Investigación (DCI), Ecuadorian Aquatic Ecotoxicology (ECUACTOX) group, Universidad Laica Eloy Alfaro de Manabí (ULEAM), Manta, Ecuador.
| | - David Mero-Del Valle
- Departamento Central de Investigación (DCI), Ecuadorian Aquatic Ecotoxicology (ECUACTOX) group, Universidad Laica Eloy Alfaro de Manabí (ULEAM), Manta, Ecuador; Facultad de Ciencias Agropecuarias, Universidad Laica Eloy Alfaro de Manabí (ULEAM), Manta, Ecuador
| | - Ricardo Castillo-Ruperti
- Departamento Central de Investigación (DCI), Ecuadorian Aquatic Ecotoxicology (ECUACTOX) group, Universidad Laica Eloy Alfaro de Manabí (ULEAM), Manta, Ecuador; Facultad de Ciencias Agropecuarias, Universidad Laica Eloy Alfaro de Manabí (ULEAM), Manta, Ecuador
| | - Dayanara Macías-Mayorga
- Departamento Central de Investigación (DCI), Ecuadorian Aquatic Ecotoxicology (ECUACTOX) group, Universidad Laica Eloy Alfaro de Manabí (ULEAM), Manta, Ecuador; Facultad de Ciencias Agropecuarias, Universidad Laica Eloy Alfaro de Manabí (ULEAM), Manta, Ecuador
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Truelove N, Behringer DC, Butler Iv MJ, Preziosi RF. Isolation and characterization of eight polymorphic microsatellites for the spotted spiny lobster, Panulirus guttatus. PeerJ 2016; 4:e1467. [PMID: 26855853 PMCID: PMC4741071 DOI: 10.7717/peerj.1467] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Accepted: 11/12/2015] [Indexed: 11/30/2022] Open
Abstract
Microsatellite sequences were isolated from enriched genomic libraries of the spotted spiny lobster, Panulirus guttatus using 454 pyrosequencing. Twenty-nine previously developed polymerase chain reaction primer pairs of Panulirus argus microsatellite loci were also tested for cross-species amplification in Panulirus guttatus. In total, eight consistently amplifying, and polymorphic loci were characterized for 57 individuals collected in the Florida Keys and Bermuda. The number of alleles per locus ranged from 8 to 20 and observed heterozygosities ranged from 0.409 to 0.958. Significant deviations from Hardy–Weinberg equilibrium were found in one locus from Florida and three loci from Bermuda. Quality control testing indicated that all loci were easy to score, highly polymorphic and showed no evidence of linkage disequilibrium. Null alleles were detected in three loci with moderate frequencies ranging from (20% to 22%). These eight microsatellites provide novel molecular markers for future conservation genetics research of P. guttatus.
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Affiliation(s)
- Nathan Truelove
- Faculty of Life Sciences, University of Manchester, Manchester, England; Current affiliation: Smithsonian Museum of Natural History, Smithsonian Marine Station, Fort Pierce, FL, United States
| | - Donald C Behringer
- School of Forest Resources and Conservation & Emerging Pathogens Institute, University of Florida , Gainesville, FL , United States
| | - Mark J Butler Iv
- Department of Biological Sciences, Old Dominion University , Norfolk, VA , United States
| | - Richard F Preziosi
- Faculty of Life Sciences, University of Manchester , Manchester , England
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Briones-Fourzán P. Differences in life-history and ecological traits between co-occurring Panulirus spiny lobsters (Decapoda, Palinuridae). Zookeys 2015:289-311. [PMID: 25561843 PMCID: PMC4283377 DOI: 10.3897/zookeys.457.6669] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Accepted: 06/29/2014] [Indexed: 11/29/2022] Open
Abstract
Coexistence of closely related species may be promoted by niche differentiation or result from interspecific trade-offs in life history and ecological traits that influence relative fitness differences and contribute to competitive inequalities. Although insufficient to prove coexistence, trait comparisons provide a first step to identify functional differences between co-occurring congeneric species in relation to mechanisms of coexistence. Here, a comparative review on life history and ecological traits is presented for two pairs of co-occurring species of spiny lobsters in the genus Panulirus: Panulirusgracilis and Panulirusinflatus from the Eastern Central Pacific region, and Panulirusargus and Panulirusguttatus from the Caribbean region. Panulirusgracilis and Panulirusinflatus have similar larval, postlarval, and adult sizes and a similar diet, but differ in degree of habitat specialization, fecundity, and growth rate. However, little is known on behavioral traits of these two species that may influence their competitive abilities and susceptibility to predators. The more abundant information on Panulirusargus and Panulirusguttatus shows that these two species differ more broadly in degree of habitat specialization, larval, postlarval and adult sizes, diet, fecundity, growth rate, degree of sociality, defense mechanisms, susceptibility to predators, and chemical ecology, suggesting a greater degree of niche differentiation between Panulirusargus and Panulirusguttatus than between Panulirusgracilis and Panulirusinflatus. Whether the substantial niche differentiation and apparent interspecific trade-offs between Panulirusargus and Panulirusguttatus relative to Panulirusgracilis and Panulirusinflatus reflect an earlier divergence of the former pair of species in the evolution of the genus constitutes an intriguing hypothesis. However, whether or not post-divergence evolution of each species pair occurred in sympatry remains uncertain.
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Affiliation(s)
- Patricia Briones-Fourzán
- Universidad Nacional Autónoma de México, Instituto de Ciencias del Mar y Limnología, Unidad Académica de Sistemas Arrecifales. Prol. Av. Niños Héroes s/n, Puerto Morelos, Quintana Roo, México
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Hovey RK, Van Niel KP, Bellchambers LM, Pember MB. Modelling deep water habitats to develop a spatially explicit, fine scale understanding of the distribution of the western rock lobster, Panulirus cygnus. PLoS One 2012; 7:e34476. [PMID: 22506021 PMCID: PMC3323630 DOI: 10.1371/journal.pone.0034476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Accepted: 03/05/2012] [Indexed: 11/19/2022] Open
Abstract
Background The western rock lobster, Panulirus cygnus, is endemic to Western Australia and supports substantial commercial and recreational fisheries. Due to and its wide distribution and the commercial and recreational importance of the species a key component of managing western rock lobster is understanding the ecological processes and interactions that may influence lobster abundance and distribution. Using terrain analyses and distribution models of substrate and benthic biota, we assess the physical drivers that influence the distribution of lobsters at a key fishery site. Methods and Findings Using data collected from hydroacoustic and towed video surveys, 20 variables (including geophysical, substrate and biota variables) were developed to predict the distributions of substrate type (three classes of reef, rhodoliths and sand) and dominant biota (kelp, sessile invertebrates and macroalgae) within a 40 km2 area about 30 km off the west Australian coast. Lobster presence/absence data were collected within this area using georeferenced pots. These datasets were used to develop a classification tree model for predicting the distribution of the western rock lobster. Interestingly, kelp and reef were not selected as predictors. Instead, the model selected geophysical and geomorphic scalar variables, which emphasise a mix of terrain within limited distances. The model of lobster presence had an adjusted D2 of 64 and an 80% correct classification. Conclusions Species distribution models indicate that juxtaposition in fine scale terrain is most important to the western rock lobster. While key features like kelp and reef may be important to lobster distribution at a broad scale, it is the fine scale features in terrain that are likely to define its ecological niche. Determining the most appropriate landscape configuration and scale will be essential to refining niche habitats and will aid in selecting appropriate sites for protecting critical lobster habitats.
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Affiliation(s)
- Renae K Hovey
- The UWA Oceans Institute and School of Earth and Environment, Faculty of Natural and Agricultural Sciences, The University of Western Australia, Perth, Western Australia, Australia.
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Wilson SK, Fisher R, Pratchett MS, Graham NAJ, Dulvy NK, Turner RA, Cakacaka A, Polunin NVC. Habitat degradation and fishing effects on the size structure of coral reef fish communities. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2010; 20:442-451. [PMID: 20405798 DOI: 10.1890/08-2205.1] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Overfishing and habitat degradation through climate change pose the greatest threats to sustainability of marine resources on coral reefs. We examined how changes in fishing pressure and benthic habitat composition influenced the size spectra of island-scale reef fish communities in Lau, Fiji. Between 2000 and 2006 fishing pressure declined in the Lau Islands due to declining human populations and reduced demand for fresh fish. At the same time, coral cover declined and fine-scale architectural complexity eroded due to coral bleaching and outbreaks of crown-of-thorns starfish, Acanthaster planci. We examined the size distribution of reef fish communities using size spectra analysis, the linearized relationship between abundance and body size class. Spatial variation in fishing pressure accounted for 31% of the variation in the slope of the size spectra in 2000, higher fishing pressure being associated with a steeper slope, which is indicative of fewer large-bodied fish and/or more small-bodied fish. Conversely, in 2006 spatial variation in habitat explained 53% of the variation in the size spectra slopes, and the relationship with fishing pressure was much weaker (approximately 12% of variation) than in 2000. Reduced cover of corals and lower structural complexity was associated with less steep size spectra slopes, primarily due to reduced abundance of fish < 20 cm. Habitat degradation will compound effects of fishing on coral reefs as increased fishing reduces large-bodied target species, while habitat loss results in fewer small-bodied juveniles and prey that replenish stocks and provide dietary resources for predatory target species. Effective management of reef resources therefore depends on both reducing fishing pressure and maintaining processes that encourage rapid recovery of coral habitat.
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Affiliation(s)
- S K Wilson
- School of Marine Science & Technology, University of Newcastle, Newcastle-upon-Tyne NE1 7RU United Kingdom.
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Briones-Fourzán P. Assessment of predation risk through conspecific alarm odors by spiny lobsters: How much is too much? Commun Integr Biol 2009; 2:302-4. [PMID: 19721871 DOI: 10.4161/cib.2.4.8221] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2009] [Accepted: 02/17/2009] [Indexed: 11/19/2022] Open
Abstract
Strong "alarm odors" emanating from lethally injured conspecifics may indicate an imminent risk of predation to spiny lobsters. In laboratory trials,1 strong conspecific alarm odors elicited avoidance in Panulirus argus, a highly gregarious species that displays collective defense behavior, but not in Panulirus guttatus, a species that tends to aggregate when reproductive activity is high (spring) but not when it is low (late summer) and does not display collective defensive behavior. To reduce predation risk, however, lobsters may autotomize limbs, thus sustaining nonlethal injuries. I tested the response of these lobsters to scents emanating from intact, lethally-injured and non-lethally injured conspecifics. In P. argus, these scents elicited, respectively, attraction, avoidance and a random response, suggesting that, in P. argus, avoidance of conspecific alarm odors depends on their strength. In contrast, P. guttatus lobsters responded at random to scents of lethally injured conspecifics and showed a similar response to scents of intact and non-lethally injured conspecifics in the spring (attraction) and in the summer (random), reflecting the more cryptic defensive behavior of this species. Therefore, both species use conspecific alarm odors for risk-assessment, but each responds to these cues in the most effective way to reduce its risk of predation.
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Affiliation(s)
- Patricia Briones-Fourzán
- Unidad Académica Puerto Morelos; Instituto de Ciencias del Mar y Limnología; Universidad Nacional Autónoma de México; Puerto Morelos, México
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Alvarez-Filip L, Dulvy NK, Gill JA, Côté IM, Watkinson AR. Flattening of Caribbean coral reefs: region-wide declines in architectural complexity. Proc Biol Sci 2009; 276:3019-25. [PMID: 19515663 DOI: 10.1098/rspb.2009.0339] [Citation(s) in RCA: 268] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Coral reefs are rich in biodiversity, in large part because their highly complex architecture provides shelter and resources for a wide range of organisms. Recent rapid declines in hard coral cover have occurred across the Caribbean region, but the concomitant consequences for reef architecture have not been quantified on a large scale to date. We provide, to our knowledge, the first region-wide analysis of changes in reef architectural complexity, using nearly 500 surveys across 200 reefs, between 1969 and 2008. The architectural complexity of Caribbean reefs has declined nonlinearly with the near disappearance of the most complex reefs over the last 40 years. The flattening of Caribbean reefs was apparent by the early 1980s, followed by a period of stasis between 1985 and 1998 and then a resumption of the decline in complexity to the present. Rates of loss are similar on shallow (<6 m), mid-water (6-20 m) and deep (>20 m) reefs and are consistent across all five subregions. The temporal pattern of declining architecture coincides with key events in recent Caribbean ecological history: the loss of structurally complex Acropora corals, the mass mortality of the grazing urchin Diadema antillarum and the 1998 El Nino Southern Oscillation-induced worldwide coral bleaching event. The consistently low estimates of current architectural complexity suggest regional-scale degradation and homogenization of reef structure. The widespread loss of architectural complexity is likely to have serious consequences for reef biodiversity, ecosystem functioning and associated environmental services.
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Affiliation(s)
- Lorenzo Alvarez-Filip
- Centre for Ecology, Evolution and Conservation, School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK.
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Briones-Fourzán P, Ramírez-Zaldívar E, Lozano-Alvarez E. Influence of conspecific and heterospecific aggregation cues and alarm odors on shelter choice by syntopic spiny lobsters. THE BIOLOGICAL BULLETIN 2008; 215:182-190. [PMID: 18840779 DOI: 10.2307/25470699] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In spiny lobsters, conspecific scents ("aggregation cues") may mediate gregarious diurnal sheltering, but scents from injured conspecifics ("alarm odors") may elicit avoidance behavior. In laboratory experiments, individuals of two coexisting species, Panulirus guttatus (a reef-obligate) and P. argus (a temporary reef-dweller), significantly chose shelters emanating conspecific aggregation cues and responded randomly to shelters emanating heterospecific aggregation cues. However, despite evidence that the two species perceived each other's alarm odors to a similar extent, P. guttatus responded randomly to shelters emanating either conspecific or heterospecific alarm odors, whereas P. argus significantly avoided both. This differential influence of alarm odors likely reflects interspecific differences in life history, sociality, and behavior. The less social, reef-obligate P. guttatus lobsters forage close to their reef dens, into which they retract deeply upon perception of risk. This cryptic behavior may offset the need to avoid conspecific (and heterospecific) alarm odors. In contrast, avoidance of conspecific alarm odors by P. argus is consistent with its ontogenetic habitat shifts and greater sociality. Furthermore, because reef-dwelling P. argus lobsters forage across open areas away from the reef, an ability to avoid alarm odors from P. guttatus upon returning to their reef dens may increase their fitness.
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Affiliation(s)
- Patricia Briones-Fourzán
- Unidad Académica Puerto Morelos, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Cancún, Q.R., Mexico.
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Jones JPG, Andriamarovololona MM, Hockley N, Gibbons JM, Milner-Gulland EJ. Testing the use of interviews as a tool for monitoring trends in the harvesting of wild species. J Appl Ecol 2008. [DOI: 10.1111/j.1365-2664.2008.01487.x] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Milner-Gulland EJ. EDITOR'S PERSPECTIVE: New perspectives on harvesting as one driver of ecosystem dynamics. J Appl Ecol 2007. [DOI: 10.1111/j.1365-2664.2007.01455.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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