dc.contributor.author | Segre, Hila | |
dc.contributor.author | Carmel, Yohay | |
dc.contributor.author | Shwartz, Assaf | |
dc.date.accessioned | 2019-01-09T21:28:09Z | |
dc.date.available | 2019-01-09T21:28:09Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Segre, H., Carmel, Y. and Shwartz, A. (2018). Implementation of the land-sharing and land-sparing framework in agro-ecological corridors. 5th European Congress of Conservation Biology. doi: 10.17011/conference/eccb2018/107151 | |
dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/61753 | |
dc.description.abstract | Maintaining adequate food supply while conserving biodiversity is one of the great challenges in conservation today. There is a fundamental controversy between land sparing and land sharing[1]: Land sparing favors intensive agriculture that allows maximal food production in a small area and spares land for conservation, while land sharing favors agro-environmental practices that create multifunctional agroecosystems. While land sparing has proven more advantageous in intact forests, evidence from long-history agricultural landscapes is mixed[2]. Using the sparing-sharing framework, we assessed costs and benefits of agriculture and conservation in planning an ecological corridor in the Jezreel Valley, Israel.
We compared land sharing - using environmentally-friendly practices to create a corridor (100 km2) -- with land sparing of wide, intact natural patches (50-300m). To assess these two alternatives, we surveyed biodiversity of five taxonomic groups throughout the agricultural season in six common crops, across two land-sharing practices (uncultivated field-margins and reduced-tillage), and large, spared natural patches. Then we assessed the economic costs (profit and revenue) of these alternatives. Results indicate that uncultivated field-margins are highly biodiverse, despite suffering from a high level of disturbance. Surprisingly, arthropods (ground-dwelling arthropods, butterflies and parasitic wasps) show higher or similar diversity in field-margins as compared to natural patches. This pattern is not consistent with diversity of plants and birds, which is higher in natural patches. Composition analysis shows unique communities in field-margins and higher species turnover for arthropods, emphasizing field-margins contribution at large-scales. Unlike field-margins, reduced-tillage did not affect biodiversity. Economically, field-margins are correlated with higher revenue of some crops, which could be attributed to the pest-control services they provide.
Our results indicate that in long-history agricultural landscapes, sparing is better than sharing in creating ecological corridors, but the optimal strategy is a combination of both. Thus, wide, natural patches should be the foundation of the agro-ecological corridor because they support the greatest biodiversity. In addition, field-margins make a better land-sharing strategy than reduced tillage; we found that reduced tillage did not affect biodiversity, regardless of its benefit in reducing soil erosion. The addition of field-margins further improves biodiversity, increasing habitat diversity in the landscape, and enhancing pest-control services that provide economic benefit to farmers.
[1] Phalan et al. 2011. Reconciling food production and biodiversity conservation: land sharing and land sparing compared. Science.
[2] von Wehrden et al. 2014. Realigning the land-sharing/land-sparing debate to match conservation needs: Considering diversity scales and land-use history. Landscape Ecol. | |
dc.format.mimetype | text/html | |
dc.language.iso | eng | |
dc.publisher | Open Science Centre, University of Jyväskylä | |
dc.relation.uri | https://peerageofscience.org/conference/eccb2018/107151/ | |
dc.rights | CC BY 4.0 | |
dc.title | Implementation of the land-sharing and land-sparing framework in agro-ecological corridors | |
dc.type | Article | |
dc.type.uri | http://purl.org/eprint/type/ConferenceItem | |
dc.identifier.doi | 10.17011/conference/eccb2018/107151 | |
dc.type.coar | conference paper not in proceedings | |
dc.description.reviewstatus | peerReviewed | |
dc.type.version | publishedVersion | |
dc.rights.copyright | © the Authors, 2018 | |
dc.rights.accesslevel | openAccess | |
dc.type.publication | conferenceObject | |
dc.relation.conference | ECCB2018: 5th European Congress of Conservation Biology. 12th - 15th of June 2018, Jyväskylä, Finland | |
dc.format.content | fulltext | |
dc.rights.url | http://creativecommons.org/licenses/by/4.0/ | |