LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Erweiterte Suche

Ihre letzten Suchen

  1. AU="Peh, Kelvin S-H"
  2. AU="Hossein Safarpour"
  3. AU="Hall, Frances"
  4. AU="Weckmann, U."
  5. AU="Martínez-Sáez, O"
  6. AU="dos Santos, Alejandra Filippo Gonzalez Neves"
  7. AU="Beverly Castillo Herrera"
  8. AU="Fatin Izzati Abdul Hadi"
  9. AU="Musinguzi, Nicholas"
  10. AU=Lee Edward Y
  11. AU="Raval, Urdhva"
  12. AU="Senn, L Kirsten"
  13. AU="Matsutani, Noriyuki"
  14. AU="Bernstein, Herbert J"
  15. AU="Elisa Impresari"
  16. AU="Feldman, Noa"
  17. AU="Dhingra, Mandeep Singh"

Suchergebnis

Treffer 1 - 10 von insgesamt 64

Suchoptionen

  1. Artikel ; Online: The potential impact of future climate change on the production of a major food and cash crop in tropical (sub)montane homegardens.

    Watts, Martin / Mpanda, Mathew / Hemp, Andreas / Peh, Kelvin S-H

    The Science of the total environment

    2022  Band 865, Seite(n) 161263

    Abstract: Tropical agroforestry systems support the wellbeing of many smallholder farmers. These systems provide smallholders with crops for consumption and income through their ecological interactions between their tree, soil, and crop components. These ... ...

    Abstract Tropical agroforestry systems support the wellbeing of many smallholder farmers. These systems provide smallholders with crops for consumption and income through their ecological interactions between their tree, soil, and crop components. These interactions, however, could be vulnerable to changes in climate conditions; yet a reliable understanding of how this could happen is not well documented. The aim of this study is to understand how tree-soil-crop interactions and crop yield are affected by changes in climate conditions, which has implications for recognising how these systems could be affected by climate change. We used a space-for-time climate analogue approach, in conjunction with structural equation modelling, to empirically examine how warmer and drier climate conditions affects tree-soil-crop interactions and banana yield in Mt. Kilimanjaro's homegarden agroforest. Overall, the change in climate conditions negatively affected ecological interactions in the homegardens by destabilizing soil nutrient cycles. Banana yield, however, was mainly directly influenced by the climate. Banana yields could initially benefit from the warmer climate before later declining under water stress. Our findings imply that under increasingly warmer and drier climate conditions, homegarden agroforestry may not be a robust long-term farming practice which can protect smallholder's wellbeing unless effective irrigation measures are implemented.
    Mesh-Begriff(e) Climate Change ; Tanzania ; Agriculture ; Farms ; Soil/chemistry ; Trees
    Chemische Substanzen Soil
    Sprache Englisch
    Erscheinungsdatum 2022-12-30
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2022.161263
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  2. Artikel: Truth matters for conservation and the environment

    Peh, Kelvin S.-H

    Land use policy. 2018 Mar., v. 72

    2018  

    Abstract: There is an understandable, but ultimately misguided temptation of some environmentalists to cling to any explanation which appears to strengthen their case. One such recent example is the attempt to claim that the proceeds of illegal trade in ivory may ... ...

    Abstract There is an understandable, but ultimately misguided temptation of some environmentalists to cling to any explanation which appears to strengthen their case. One such recent example is the attempt to claim that the proceeds of illegal trade in ivory may support and fund international terrorism. But enduring policy decisions are dependent on mutually-agreed and established facts, so rigorous fact-checking and sustaining the highest standards of professional integrity remain essential. Truth not only continues to matter; it remains the biggest weapon and shield for all wildlife conservationists and environmental scientists in a world of increasingly wanton, politically-motivated myth-making.
    Schlagwörter funding ; issues and policy ; terrorism ; trade ; wildlife
    Sprache Englisch
    Erscheinungsverlauf 2018-03
    Umfang p. 239-240.
    Erscheinungsort Elsevier Ltd
    Dokumenttyp Artikel
    ZDB-ID 852476-2
    ISSN 0264-8377
    ISSN 0264-8377
    DOI 10.1016/j.landusepol.2017.12.061
    Datenquelle NAL Katalog (AGRICOLA)

    Zusatzmaterialien

    Kategorien

  3. Artikel ; Online: Impacts of anthropogenic climate change on tropical montane forests: an appraisal of the evidence.

    Mata-Guel, Erik O / Soh, Malcolm C K / Butler, Connor W / Morris, Rebecca J / Razgour, Orly / Peh, Kelvin S-H

    Biological reviews of the Cambridge Philosophical Society

    2023  Band 98, Heft 4, Seite(n) 1200–1224

    Abstract: In spite of their small global area and restricted distributions, tropical montane forests (TMFs) are biodiversity hotspots and important ecosystem services providers, but are also highly vulnerable to climate change. To protect and preserve these ... ...

    Abstract In spite of their small global area and restricted distributions, tropical montane forests (TMFs) are biodiversity hotspots and important ecosystem services providers, but are also highly vulnerable to climate change. To protect and preserve these ecosystems better, it is crucial to inform the design and implementation of conservation policies with the best available scientific evidence, and to identify knowledge gaps and future research needs. We conducted a systematic review and an appraisal of evidence quality to assess the impacts of climate change on TMFs. We identified several skews and shortcomings. Experimental study designs with controls and long-term (≥10 years) data sets provide the most reliable evidence, but were rare and gave an incomplete understanding of climate change impacts on TMFs. Most studies were based on predictive modelling approaches, short-term (<10 years) and cross-sectional study designs. Although these methods provide moderate to circumstantial evidence, they can advance our understanding on climate change effects. Current evidence suggests that increasing temperatures and rising cloud levels have caused distributional shifts (mainly upslope) of montane biota, leading to alterations in biodiversity and ecological functions. Neotropical TMFs were the best studied, thus the knowledge derived there can serve as a proxy for climate change responses in under-studied regions elsewhere. Most studies focused on vascular plants, birds, amphibians and insects, with other taxonomic groups poorly represented. Most ecological studies were conducted at species or community levels, with a marked paucity of genetic studies, limiting understanding of the adaptive capacity of TMF biota. We thus highlight the long-term need to widen the methodological, thematic and geographical scope of studies on TMFs under climate change to address these uncertainties. In the short term, however, in-depth research in well-studied regions and advances in computer modelling approaches offer the most reliable sources of information for expeditious conservation action for these threatened forests.
    Mesh-Begriff(e) Ecosystem ; Climate Change ; Cross-Sectional Studies ; Forests ; Biodiversity ; Tropical Climate
    Sprache Englisch
    Erscheinungsdatum 2023-03-29
    Erscheinungsland England
    Dokumenttyp Systematic Review ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1423558-4
    ISSN 1469-185X ; 0006-3231 ; 1464-7931
    ISSN (online) 1469-185X
    ISSN 0006-3231 ; 1464-7931
    DOI 10.1111/brv.12950
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  4. Artikel ; Online: Wildlife protection: seize diplomats smuggling ivory.

    Peh, Kelvin S-H

    Nature

    2013  Band 500, Heft 7462, Seite(n) 276

    Mesh-Begriff(e) Conservation of Natural Resources/legislation & jurisprudence ; Conservation of Natural Resources/methods ; Conservation of Natural Resources/trends ; Government Regulation ; International Cooperation ; Travel/legislation & jurisprudence
    Sprache Englisch
    Erscheinungsdatum 2013-08-15
    Erscheinungsland England
    Dokumenttyp Letter
    ZDB-ID 120714-3
    ISSN 1476-4687 ; 0028-0836
    ISSN (online) 1476-4687
    ISSN 0028-0836
    DOI 10.1038/500276e
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  5. Artikel: The importance of green spaces to public health: a multi-continental analysis.

    Amano, Tatsuya / Butt, Isabel / Peh, Kelvin S-H

    Ecological applications : a publication of the Ecological Society of America

    2018  Band 28, Heft 6, Seite(n) 1473–1480

    Abstract: As green spaces are a common feature of liveable cities, a detailed understanding of the benefits provided by these areas is essential. Although green spaces are regarded as a major contribution to the human well-being in urbanized areas, current ... ...

    Abstract As green spaces are a common feature of liveable cities, a detailed understanding of the benefits provided by these areas is essential. Although green spaces are regarded as a major contribution to the human well-being in urbanized areas, current research has largely focused on the cities in developed countries and their global importance in terms of public health benefits remains unclear. In this study, we performed a multiple linear regression using 34 cities in different regions across the globe to investigate the relationship between green spaces and public health. Our analysis suggested that for richer cities, green spaces were associated with better public health; whereas a greater area of green spaces was associated with reduced public health in the poorest cities. In contrast to previous studies, which typically found positive relationships between green spaces and health benefits, we demonstrate that health benefits of green spaces could be context dependent.
    Mesh-Begriff(e) Gardens ; Humans ; Public Health ; Urbanization
    Sprache Englisch
    Erscheinungsdatum 2018-06-20
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Multicenter Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 1074505-1
    ISSN 1939-5582 ; 1051-0761
    ISSN (online) 1939-5582
    ISSN 1051-0761
    DOI 10.1002/eap.1748
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  6. Artikel ; Online: Crop failure signals biodiversity crisis.

    Peh, Kelvin S-H

    Nature

    2011  Band 473, Heft 7347, Seite(n) 284

    Mesh-Begriff(e) Agriculture/economics ; Agriculture/statistics & numerical data ; Biodiversity ; Conservation of Natural Resources ; Food Supply/economics ; Food Supply/statistics & numerical data ; Humans ; Liberia ; Tropical Climate
    Sprache Englisch
    Erscheinungsdatum 2011-05-19
    Erscheinungsland England
    Dokumenttyp Comment ; Letter
    ZDB-ID 120714-3
    ISSN 1476-4687 ; 0028-0836
    ISSN (online) 1476-4687
    ISSN 0028-0836
    DOI 10.1038/473284d
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  7. Artikel: Economic Value of Cultural Ecosystem Services from Recreation in Popa Mountain National Park, Myanmar: A Comparison of Two Rapid Valuation Techniques

    Soe Zin, Wai / Gasparatos, Alexandros / Peh, Kelvin S.-H / Suzuki, Aya

    Land. 2019 Dec. 14, v. 8, no. 12

    2019  

    Abstract: Protected areas offer diverse ecosystem services, including cultural services related to recreation, which contribute manifold to human wellbeing and the economy. However, multiple pressures from other human activities often compromise ecosystem service ... ...

    Abstract Protected areas offer diverse ecosystem services, including cultural services related to recreation, which contribute manifold to human wellbeing and the economy. However, multiple pressures from other human activities often compromise ecosystem service delivery from protected areas. It is thus fundamental for effective management to understand the recreational values and visitor behaviors in such areas. This paper undertakes a rapid assessment of the economic value of cultural ecosystem services related to recreation in a national park in Myanmar using two valuation techniques, the individual travel cost method (TCM) and the Toolkit for Ecosystem Service Site-based Assessment (TESSA v.1.2). We focus on the Popa Mountain National Park, a protected area visited by approximately 800,000 domestic and 25,000 international tourists annually. Individual TCM estimates that each domestic visitor spent USD 20–24 per trip, and the total annual recreational value contributed by these visitors was estimated at USD 16.1–19.6 million (USD 916–1111 ha-1). TESSA estimated the annual recreational expenditure from domestic and international visitors at USD 15.1 million (USD 858 ha-1) and USD 5.04 million (USD 286 ha-1), respectively. Both methods may be employed as practical approaches to assess the recreational values of protected areas (and other land uses with recreational value), and they have rather complementary approaches. We recommend that both techniques be combined into a single survey protocol.
    Schlagwörter anthropogenic activities ; conservation areas ; economic valuation ; ecosystem services ; land use ; national parks ; rapid methods ; recreation ; social welfare ; surveys ; tourists ; travel ; Myanmar
    Sprache Englisch
    Erscheinungsverlauf 2019-1214
    Erscheinungsort Multidisciplinary Digital Publishing Institute
    Dokumenttyp Artikel
    ZDB-ID 2682955-1
    ISSN 2073-445X
    ISSN 2073-445X
    DOI 10.3390/land8120194
    Datenquelle NAL Katalog (AGRICOLA)

    Zusatzmaterialien

    Kategorien

  8. Artikel: Pollination by bats enhances both quality and yield of a major cash crop in Mexico

    Tremlett, Constance J / Moore, Mandy / Chapman, Mark A / Zamora‐Gutierrez, Veronica / Peh, Kelvin S.‐H

    Journal of applied ecology. 2020 Mar., v. 57, no. 3

    2020  

    Abstract: Bats pollinate many plants of high socio‐economic value, including the majority of columnar cacti (Cactaceae) in Mexico, which have been used by humans for food and materials for thousands of years. However, the importance of bats as pollinators has been ...

    Abstract Bats pollinate many plants of high socio‐economic value, including the majority of columnar cacti (Cactaceae) in Mexico, which have been used by humans for food and materials for thousands of years. However, the importance of bats as pollinators has been overlooked, with a consequent lack of knowledge of the reliance of crops on bats for harvest yield and quality. We used exclusion experiments to determine the effect of different pollinator taxa on the yield and quality of pitayas (fruit of Stenocereus queretaroensis (F.A.C. Weber) Buxbaum), a major crop in central Mexico. We studied the three most economically important cultivars and wild individuals in the principal region for pitaya production. For each pollinator taxon we recorded fruit set and measured three key parameters of fruit quality: weight, sucrose concentration and seed set. We placed camera traps to determine pollinator identity and the effect of visitation rate on fruit quality. We found the primary pollinators of pitayas to be nectarivorous bats in the genus Leptonycteris. When bats were excluded from flowers and flowers were pollinated by other taxa (i.e. diurnal birds and insects), pitaya yield decreased by 35%, though pollination dependence varied between cultivars. Fruit quality decreased significantly in the absence of bat pollination across all cultivars, with fruits 46% lighter and 13% less sweet when pollinated by other taxa; reducing economic value, as size determines market price. Additionally, seed set (an indicator of effective pollination) was significantly lower in the absence of bat pollinators. Visitation rate had no effect on fruit quality. Synthesis and applications. Our study shows that bats provide a vital ecosystem service by pollinating a crop of major socio‐economic importance, and that consideration of both crop quality and yield are essential to fully understanding the benefits of bat pollination. A reduction of this service would result in a decrease in both the size and quality of the harvest, causing substantial loss of income for rural communities. Bats world‐wide face many threats, and management efforts targeted to the enhancement of wild bat pollinator populations would preserve the sustainability of both bat‐pollinated crops and wild plants.
    Schlagwörter Chiroptera ; Stenocereus queretaroensis ; applied ecology ; cameras ; cash crops ; crop quality ; cultivars ; economic valuation ; ecosystem services ; fruit quality ; fruit set ; fruits ; income ; market prices ; nectar feeding ; pollination ; pollinators ; seed set ; socioeconomics ; sucrose ; Mexico
    Sprache Englisch
    Erscheinungsverlauf 2020-03
    Umfang p. 450-459.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung NAL-AP-2-clean ; JOURNAL ARTICLE
    ZDB-ID 410405-5
    ISSN 1365-2664 ; 0021-8901
    ISSN (online) 1365-2664
    ISSN 0021-8901
    DOI 10.1111/1365-2664.13545
    Datenquelle NAL Katalog (AGRICOLA)

    Zusatzmaterialien

    Kategorien

  9. Artikel: Does governance play a role in the distribution of invasive alien species?

    Evans, Thomas / Zu Ermgassen, Philine / Amano, Tatsuya / Peh, Kelvin S-H

    Ecology and evolution

    2018  Band 8, Heft 4, Seite(n) 1984–1994

    Abstract: Invasive alien species (IAS) constitute a major threat to global biological diversity. In order to control their spread, a detailed understanding of the factors influencing their distribution is essential. Although international trade is regarded as a ... ...

    Abstract Invasive alien species (IAS) constitute a major threat to global biological diversity. In order to control their spread, a detailed understanding of the factors influencing their distribution is essential. Although international trade is regarded as a major force structuring spatial patterns of IAS, the role of other social factors remains unclear. Despite studies highlighting the importance of strong governance in slowing drivers of biodiversity loss such as logging, deforestation, and agricultural intensification, no study has yet analyzed its contribution to the issue of IAS. Using estimates of governance quality and comprehensive spatiotemporal IAS data, we performed multiple linear regressions to investigate the effect of governance quality upon the distribution of species listed under "100 of the worst" IAS in 38 Eurasian countries as defined by DASIE. Our model suggested that for countries with higher GDP, stronger governance was associated with a greater number of the worst IAS; in contrast, for the lowest GDP countries under analysis, stronger governance was associated with fewer of these IAS. We elucidate how the quality of governance within a country has implications for trade, tourism, transport, legislation, and economic development, all of which influence the spread of IAS. While our findings support the common assumption that strengthening governance benefits conservation interventions in countries of smaller economy, we find that this effect is not universal. Stronger governance alone cannot adequately address the problem of IAS, and targeted action is required in relatively high-GDP countries in order to stem the influx of IAS associated with high volumes of trade.
    Sprache Englisch
    Erscheinungsdatum 2018-01-17
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2635675-2
    ISSN 2045-7758
    ISSN 2045-7758
    DOI 10.1002/ece3.3744
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  10. Artikel ; Online: China and India: think outside the borders.

    Peh, Kelvin S-H

    Science (New York, N.Y.)

    2010  Band 328, Heft 5983, Seite(n) 1228–1229

    Mesh-Begriff(e) Biodiversity ; China ; Conservation of Natural Resources ; Ecosystem ; Environment ; India ; International Cooperation ; Military Personnel
    Sprache Englisch
    Erscheinungsdatum 2010-06-04
    Erscheinungsland United States
    Dokumenttyp Comment ; Letter
    ZDB-ID 128410-1
    ISSN 1095-9203 ; 0036-8075
    ISSN (online) 1095-9203
    ISSN 0036-8075
    DOI 10.1126/science.328.5983.1228-d
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

Zum Seitenanfang