Essays about: "declining species"

Showing result 1 - 5 of 85 essays containing the words declining species.

  1. 1. An attempt to promote ground-nesting bees in an urban landscape. Investigating the use of sand beds as a conservation effort.

    University essay from Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Author : Bodil Mattson; [2024-02-16]
    Keywords : ground-nesting bees - pollinator conservation - sand beds – conservation in urban parks;

    Abstract : Pollinators provide crucial services for the ecosystems by pollinating around 80-90% of all plants. However, pollinating insects are declining worldwide which may cause a parallel decline in plant species leading to large biodiversity losses. READ MORE

  3. 2. Urban äng – ansvar och potential för biologisk mångfald : en jämförande analys av arter och indelningar mellan den svenska ängsfröproducenten Pratensis och Natura 2000

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Ebba Forsberg; Nadia Olausson; [2023]
    Keywords : biodiversitet; biologisk mångfald; äng; urban äng; stadsplanering; urban planering; Natura 2000; Pratensis; handel; utbud;

    Abstract : Global biodiversitet minskar drastiskt vilket utöver att drabba enskilda arter även riskerar att få stora konsekvenser för ekosystem och grundläggande ekosystemtjänster. Ängen är en naturtyp med stor artrikedom och en lång tradition i Sverige men som idag är hotad och naturvårdsklassad till följd av förändrad markanvändning, som bland annat innefattar urbanisering. READ MORE

  4. 3. System ecology of legumes mixes in ley production : impact on pollinating insects and further implications for production in northern Sweden

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Philippe Simon; [2023]
    Keywords : Ley production; Nitrogen fixation; Pollination ecology;

    Abstract : The population and diversity of pollinating insects in Europe are declining, partly due to lossof habitat. In agricultural landscapes, farming practices with more intensified land use haveincreased. In Swedish agricultural habitats, most ley production is dominated by grass and red clover (Trifolium pratense). READ MORE

  5. 4. Faunabroar: Är det framtiden för minskade viltolyckor?

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Lisa Huss; [2023]
    Keywords : viltolycka; faunapassager; vilt; dataanalys;

    Abstract : Wildlife vehicle collisions (WVC) are a problem in the world that is costly and can create suffering for the affected. Every year about 65 000 WVC are reported in Sweden only. Fauna passages are built to try to reduce WVC and the fragmentation that road networks make. READ MORE

  6. 5. Modelling the effects of substituting pollinators in decline

    University essay from Lunds universitet/Matematik LTH

    Author : Axel Eriksson; [2023]
    Keywords : pollinators; plants; mutualism; competition; equilibrium populations; Mathematics and Statistics;

    Abstract : While pollination is essential for many plant species and ecosystem functions, pollinator populations worldwide are declining. This decline is largely due to abiotic changes in the environment: climate change and other anthropogenic impacts, such as pesticides and land use change. READ MORE