The Experts below are selected from a list of 83886 Experts worldwide ranked by ideXlab platform
Miguel A Cisnerosmata - One of the best experts on this subject based on the ideXlab platform.
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illegal fisheries environmental crime and the conservation of Marine Resources
Conservation Biology, 2021Co-Authors: Erendira Acevesbueno, Andrew J Read, Miguel A CisnerosmataAbstract:The illegal harvest of Marine species within exclusive economic zones can have a strong impact on the function of local ecosystems and livelihoods of coastal communities. The complexity of these problems is often overlooked in the development of solutions, leading to ineffective and sometimes harmful social and environmental outcomes. One-dimensional, oversimplified perspectives can lead to conservation prescriptions that exacerbate social stressors. This is particularly critical in the case of international illegal trade of endangered, high-value species, which generate a value chain in which artisanal fishers are the first operational and often the weakest link of an intricate web. We examined 2 illegal fisheries, totoaba (Totoaba macdonaldi) and sea cucumber (Isostichopus badionotus and Holothuria floridana), in Mexico. Although these are 2 separate and independent fisheries, important ecological (resource condition, fishery impacts at the ecosystem level) and social (governance, markets) similarities improve understanding of their complexity. Our findings are relevant globally and show the need for interdisciplinary decision-making groups, community engagement, and the development of demand reduction measures.
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illegal fisheries environmental crime and the conservation of Marine Resources
Conservation Biology, 2020Co-Authors: Erendira Acevesbueno, Andrew J Read, Miguel A CisnerosmataAbstract:The illegal harvest of Marine species within exclusive economic zones can have a strong impact on the function of local ecosystems and livelihoods of coastal communities. The complexity of these problems is often overlooked in the development of solutions, leading to ineffective and sometimes harmful social and environmental outcomes. One-dimensional, oversimplified perspectives can lead to conservation prescriptions that exacerbate social stressors. This is particularly critical in the case of international illegal trade of endangered, high-value species, which generate a value chain in which artisanal fishers are the first operational, and often the weakest link of an intricate web. The objective of this manuscript is to underscore the complexity of these problems and identify possible pathways to find effective solutions. Our analysis of two illegal fisheries in Mexico, totoaba and sea cucumber, emphasizes the need for interdisciplinary decision-making groups, community engagement, and the development of demand reduction measures. This article is protected by copyright. All rights reserved.
Tom Minichillo - One of the best experts on this subject based on the ideXlab platform.
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early human use of Marine Resources and pigment in south africa during the middle pleistocene
Nature, 2007Co-Authors: Curtis W Marean, Miryam Barmatthews, Jocelyn Bernatchez, E Fisher, Paul Goldberg, Andy I R Herries, Zenobia Jacobs, Antonieta Jerardino, Panagiotis Karkanas, Tom MinichilloAbstract:Genetic and anatomical evidence suggests that Homo sapiens arose in Africa between 200 and 100 thousand years (kyr) ago, and recent evidence indicates symbolic behaviour may have appeared approximately 135-75 kyr ago. From 195-130 kyr ago, the world was in a fluctuating but predominantly glacial stage (Marine isotope stage MIS6); much of Africa was cooler and drier, and dated archaeological sites are rare. Here we show that by approximately 164 kyr ago (+/-12 kyr) at Pinnacle Point (on the south coast of South Africa) humans expanded their diet to include Marine Resources, perhaps as a response to these harsh environmental conditions. The earliest previous evidence for human use of Marine Resources and coastal habitats was dated to approximately 125 kyr ago. Coincident with this diet and habitat expansion is an early use and modification of pigment, probably for symbolic behaviour, as well as the production of bladelet stone tool technology, previously dated to post-70 kyr ago. Shellfish may have been crucial to the survival of these early humans as they expanded their home ranges to include coastlines and followed the shifting position of the coast when sea level fluctuated over the length of MIS6.
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early human use of Marine Resources and pigment in south africa during the middle pleistocene
Nature, 2007Co-Authors: Curtis W Marean, Miryam Barmatthews, Jocelyn Bernatchez, E Fisher, Paul Goldberg, Andy I R Herries, Zenobia Jacobs, Antonieta Jerardino, Panagiotis Karkanas, Tom MinichilloAbstract:It's been suggested that the first thing Homo sapiens did once he and she had evolved was head for the beach. This is demonstrated in dramatic fashion by a series of discoveries in Middle Pleistocene sediments from a South African sea cave near Pinnacle Point. The finds suggest that by around 164,000 years ago, the residents were on a diet that included shellfish — the earliest evidence for the exploitation of coastal Resources by some 40,000 years. There is also evidence that they used pigments such as red ochre for symbolic behaviour. This was at a time when the world was going through a cool, dry spell, and Africa was mostly desert. Perhaps this environmental stress drove small bands of hunter–gatherers down to the sea in search of new food sources and lifestyles. Evidence of shellfish use and cultural practice (use of red ochre) by Homo sapiens from a sea-cave in South Africa around 164,000 years ago presents the earliest evidence for the exploitation of coastal Resources by some 40,000 years. At that time Africa was mostly desert, possibly driving small bands of hunter-gatherers seawards in search of new food sources Genetic and anatomical evidence suggests that Homo sapiens arose in Africa between 200 and 100 thousand years (kyr) ago1,2, and recent evidence indicates symbolic behaviour may have appeared ∼135–75 kyr ago3,4. From 195–130 kyr ago, the world was in a fluctuating but predominantly glacial stage (Marine isotope stage MIS6)5; much of Africa was cooler and drier, and dated archaeological sites are rare6,7. Here we show that by ∼164 kyr ago (±12 kyr) at Pinnacle Point (on the south coast of South Africa) humans expanded their diet to include Marine Resources, perhaps as a response to these harsh environmental conditions. The earliest previous evidence for human use of Marine Resources and coastal habitats was dated to ∼125 kyr ago8,9. Coincident with this diet and habitat expansion is an early use and modification of pigment, probably for symbolic behaviour, as well as the production of bladelet stone tool technology, previously dated to post-70 kyr ago10,11,12. Shellfish may have been crucial to the survival of these early humans as they expanded their home ranges to include coastlines and followed the shifting position of the coast when sea level fluctuated over the length of MIS6.
Michael P Richards - One of the best experts on this subject based on the ideXlab platform.
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isotope evidence for the use of Marine Resources in the eastern iberian mesolithic
Journal of Archaeological Science, 2014Co-Authors: Domingo C Salazargarcia, Emili J Aura, Carme Olaria, Sahra Talamo, Juan V Morales, Michael P RichardsAbstract:There are relatively few coastal Mesolithic sites in the Iberian Mediterranean region, probably due to a number of factors including sea level changes and the disappearance of sites due to agriculture and urbanisation. However, recent excavations have uncovered inland sites that have Marine faunal remains (i.e. molluscs and fish) and lithics from the coastal area, which both indicate interactions between the coast and the upland valleys. These inland sites are located at a distance of 30–50 km from today's coastline and are at altitudes higher than 1000 m. We report on additional information on the links between the coast and these inland sites through the use of dietary isotope analysis (carbon and nitrogen stable isotope analysis) of collagen extracted from human and faunal remains at the sites of Coves de Santa Maira, Penya del Comptador and Cingle del Mas Nou. The results indicate that Mesolithic diet in this region was largely based on C3 terrestrial Resources, but there was measurable evidence of low-level consumption of Marine Resources at both coastal and inland sites.
Erendira Acevesbueno - One of the best experts on this subject based on the ideXlab platform.
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illegal fisheries environmental crime and the conservation of Marine Resources
Conservation Biology, 2021Co-Authors: Erendira Acevesbueno, Andrew J Read, Miguel A CisnerosmataAbstract:The illegal harvest of Marine species within exclusive economic zones can have a strong impact on the function of local ecosystems and livelihoods of coastal communities. The complexity of these problems is often overlooked in the development of solutions, leading to ineffective and sometimes harmful social and environmental outcomes. One-dimensional, oversimplified perspectives can lead to conservation prescriptions that exacerbate social stressors. This is particularly critical in the case of international illegal trade of endangered, high-value species, which generate a value chain in which artisanal fishers are the first operational and often the weakest link of an intricate web. We examined 2 illegal fisheries, totoaba (Totoaba macdonaldi) and sea cucumber (Isostichopus badionotus and Holothuria floridana), in Mexico. Although these are 2 separate and independent fisheries, important ecological (resource condition, fishery impacts at the ecosystem level) and social (governance, markets) similarities improve understanding of their complexity. Our findings are relevant globally and show the need for interdisciplinary decision-making groups, community engagement, and the development of demand reduction measures.
-
illegal fisheries environmental crime and the conservation of Marine Resources
Conservation Biology, 2020Co-Authors: Erendira Acevesbueno, Andrew J Read, Miguel A CisnerosmataAbstract:The illegal harvest of Marine species within exclusive economic zones can have a strong impact on the function of local ecosystems and livelihoods of coastal communities. The complexity of these problems is often overlooked in the development of solutions, leading to ineffective and sometimes harmful social and environmental outcomes. One-dimensional, oversimplified perspectives can lead to conservation prescriptions that exacerbate social stressors. This is particularly critical in the case of international illegal trade of endangered, high-value species, which generate a value chain in which artisanal fishers are the first operational, and often the weakest link of an intricate web. The objective of this manuscript is to underscore the complexity of these problems and identify possible pathways to find effective solutions. Our analysis of two illegal fisheries in Mexico, totoaba and sea cucumber, emphasizes the need for interdisciplinary decision-making groups, community engagement, and the development of demand reduction measures. This article is protected by copyright. All rights reserved.
Curtis W Marean - One of the best experts on this subject based on the ideXlab platform.
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early human use of Marine Resources and pigment in south africa during the middle pleistocene
Nature, 2007Co-Authors: Curtis W Marean, Miryam Barmatthews, Jocelyn Bernatchez, E Fisher, Paul Goldberg, Andy I R Herries, Zenobia Jacobs, Antonieta Jerardino, Panagiotis Karkanas, Tom MinichilloAbstract:Genetic and anatomical evidence suggests that Homo sapiens arose in Africa between 200 and 100 thousand years (kyr) ago, and recent evidence indicates symbolic behaviour may have appeared approximately 135-75 kyr ago. From 195-130 kyr ago, the world was in a fluctuating but predominantly glacial stage (Marine isotope stage MIS6); much of Africa was cooler and drier, and dated archaeological sites are rare. Here we show that by approximately 164 kyr ago (+/-12 kyr) at Pinnacle Point (on the south coast of South Africa) humans expanded their diet to include Marine Resources, perhaps as a response to these harsh environmental conditions. The earliest previous evidence for human use of Marine Resources and coastal habitats was dated to approximately 125 kyr ago. Coincident with this diet and habitat expansion is an early use and modification of pigment, probably for symbolic behaviour, as well as the production of bladelet stone tool technology, previously dated to post-70 kyr ago. Shellfish may have been crucial to the survival of these early humans as they expanded their home ranges to include coastlines and followed the shifting position of the coast when sea level fluctuated over the length of MIS6.
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early human use of Marine Resources and pigment in south africa during the middle pleistocene
Nature, 2007Co-Authors: Curtis W Marean, Miryam Barmatthews, Jocelyn Bernatchez, E Fisher, Paul Goldberg, Andy I R Herries, Zenobia Jacobs, Antonieta Jerardino, Panagiotis Karkanas, Tom MinichilloAbstract:It's been suggested that the first thing Homo sapiens did once he and she had evolved was head for the beach. This is demonstrated in dramatic fashion by a series of discoveries in Middle Pleistocene sediments from a South African sea cave near Pinnacle Point. The finds suggest that by around 164,000 years ago, the residents were on a diet that included shellfish — the earliest evidence for the exploitation of coastal Resources by some 40,000 years. There is also evidence that they used pigments such as red ochre for symbolic behaviour. This was at a time when the world was going through a cool, dry spell, and Africa was mostly desert. Perhaps this environmental stress drove small bands of hunter–gatherers down to the sea in search of new food sources and lifestyles. Evidence of shellfish use and cultural practice (use of red ochre) by Homo sapiens from a sea-cave in South Africa around 164,000 years ago presents the earliest evidence for the exploitation of coastal Resources by some 40,000 years. At that time Africa was mostly desert, possibly driving small bands of hunter-gatherers seawards in search of new food sources Genetic and anatomical evidence suggests that Homo sapiens arose in Africa between 200 and 100 thousand years (kyr) ago1,2, and recent evidence indicates symbolic behaviour may have appeared ∼135–75 kyr ago3,4. From 195–130 kyr ago, the world was in a fluctuating but predominantly glacial stage (Marine isotope stage MIS6)5; much of Africa was cooler and drier, and dated archaeological sites are rare6,7. Here we show that by ∼164 kyr ago (±12 kyr) at Pinnacle Point (on the south coast of South Africa) humans expanded their diet to include Marine Resources, perhaps as a response to these harsh environmental conditions. The earliest previous evidence for human use of Marine Resources and coastal habitats was dated to ∼125 kyr ago8,9. Coincident with this diet and habitat expansion is an early use and modification of pigment, probably for symbolic behaviour, as well as the production of bladelet stone tool technology, previously dated to post-70 kyr ago10,11,12. Shellfish may have been crucial to the survival of these early humans as they expanded their home ranges to include coastlines and followed the shifting position of the coast when sea level fluctuated over the length of MIS6.
