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| Almoussawi, Ali; Lenoir, Jonathan; Jamoneau, Aurélien; Hattab, Tarek; Wasof, Safaa; Gallet‐moron, Emilie; Garzon‐lopez, Carol X.; Spicher, Fabien; Kobaissi, Ahmad; Decocq, Guillaume; Collins, Beverly. |
| Questions Forest fragmentation affects biodiversity locally (α diversity) and beyond — at relatively larger scales (γ diversity) — by increasing dispersal and recruitment limitations. Yet, does an increase in fragmentation affect the relationship between α and γ diversity and what can we learn from it? Location Northern France. Methods We surveyed 116 forest patches across three fragmentation levels: none (continuous forest); intermediate (forest patches connected by hedgerows); and high (isolated forest patches). Plant species richness of both forest specialists and generalists was surveyed at five nested spatial resolutions across each forest patch: 1 m2; 10 m2; 100 m2; 1,000 m2; and total forest patch area. First, we ran log‐ratio models to quantify the... |
| Tipo: Text |
Palavras-chave: Agricultural landscapes; Alpha diversity; Anthropogenic disturbances; Community assembly; Dispersal limitations; Gamma diversity; Habitat conservation strategies; Habitat fragmentation; Local-regional richness relationship; Metacommunity dynamics. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00592/70438/68577.pdf |
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| Ahrens, Heinz; Kantelhardt, Jochen. |
| Especially in environmentally sensitive agricultural landscapes, agriculture cannot define its aims by itself - it has to account for a number of demands of different groups of society. For example, agriculture is expected to produce food and at the same time contribute to the protection of cultural landscapes and to further ecological services. Land use concepts for ecologically particularly sensitive agricultural landscapes are often focussed on the attainment of specific environmental objectives in specific areas, neglecting both socioeconomic effects, in particular income effects, and the farmers' income-driven production responses outside these areas. The paper illustrates, on the basis of an empirical study, (1) that the farmers' objectives and... |
| Tipo: Journal Article |
Palavras-chave: Agricultural landscapes; Land-use concepts; Multi-criteria decision analysis; Land Economics/Use; Environmental Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/96735 |
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