Zobrazeno 1 - 10 of 11 pro vyhledávání: '"Grant Blackwell"'
1
Abundance and diversity of herbaceous weeds in sheep/beef pastures, South Island, New Zealand
Autor: R Hill, Grant Blackwell, M. Emanuelsson, J Manhire, Henrik Moller, D Lucock
Publikováno v: New Zealand Journal of Agricultural Research. 54:53-69
This study compared species diversity, abundance and size of broad-leaved herbaceous weeds on 28 South Island sheep/beef farms that employed either organic, integrated management (IM) or conventional management (CM) systems. Three or six paddocks per
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f9994595f7a4a07ac5bbc1065e9374ec
https://doi.org/10.1080/00288233.2010.535493
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2
Responses of stream macroinvertebrates and ecosystem function to conventional, integrated and organic farming
Autor: Christoph D. Matthaei, Grant Blackwell, Francis S. Magbanua, Ngaire R. Phillips, Colin R. Townsend
Publikováno v: Journal of Applied Ecology. 47:1014-1025
Summary 1. Organic farming practices can benefit a wide range of terrestrial biota in comparison to conventional farming but we do not know whether this benefit extends to streams flowing through farmed landscapes. 2. We measured the impacts of organ
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::38e7200e9a42f835d164d0515db47cf5
https://doi.org/10.1111/j.1365-2664.2010.01859.x
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3
Effects of geolocation archival tags on reproduction and adult body mass of sooty shearwaters (Puffinus griseus)
Autor: Josh Adams, Sam McKechnie, Darren Scott, Henrik Moller, Grant Blackwell, Scott A. Shaffer
Publikováno v: ResearcherID
We attached 11 g (1.4% body‐mass equivalent) global location sensing (GLS) archival tag packages to tarsi of 25 breeding sooty shearwaters (Puffinus griseus, titi) on Whenua Hou (Codfish Island), New Zealand during the chick‐rearing period in 200
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f70971b2aac6c32f5c54a8aa4689fc28
https://doi.org/10.1080/03014220909510160
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4
Enhanced niche opportunities: can they explain the success of New Zealand's introduced bird species?
Autor: Stuart E. Newson, Grant Blackwell, Richard P. Duncan, Catriona J. MacLeod
Publikováno v: Diversity and Distributions. 15:41-49
Aim The niche hypothesis could explain why some species introduced to new locations reach higher densities than in their native range: it posits that the new environment provides more abundant or higher quality resources or habitat, a more suitable p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b95c385b4632b57a190902a59360ff3c
https://doi.org/10.1111/j.1472-4642.2008.00498.x
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6
Room for everyone? Refugia and native biodiversity in New Zealand's agricultural landscapes
Autor: Catriona J. MacLeod, Tanja Maegli, Yuki Fukuda, Grant Blackwell
Publikováno v: New Zealand Journal of Agricultural Research. 51:473-476
(2008). Room for everyone? Refugia and native biodiversity in New Zealand's agricultural landscapes. New Zealand Journal of Agricultural Research: Vol. 51, No. 4, pp. 473-476.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7432509f662f7f0941d974042ba4dcc1
https://doi.org/10.1080/00288230809510478
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7
Intensification of New Zealand agriculture: Implications for biodiversity
Autor: Markus Gradwohl, Chris Rosin, Florian Weller, Sarah Meadows, Chris Perley, Julia H. Haggerty, Catriona J. MacLeod, Henrik Moller, Grant Blackwell
Publikováno v: New Zealand Journal of Agricultural Research. 51:253-263
Intensification of New Zealand agricultural practices is an ongoing and accelerating process which potentially threatens the environment, biodiversity and even the sustainability of agricultural production. However, neither the exact nature of this t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f20581b65192c128c260e258d8f4139
https://doi.org/10.1080/00288230809510453
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9
Baseline data on the diversity and abundance of selected bird species on conventional and converting organic dairy farms
Autor: Tanja Maegli, Marion Mondot, Grant Blackwell
Publikováno v: Proceedings of the New Zealand Grassland Association. :245-251
While it has been shown that bird species can benefit from organic farm management internationally, there is little information on birds in production landscapes in NZ. In this paper we apply spatial analysis techniques to compare the spatial distrib
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3e7b613be90b6d2713df611a6707d6c5
https://doi.org/10.33584/jnzg.2007.69.2669
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10
Reduced pesticide toxicity and increased woody vegetation cover account for enhanced native bird densities in organic orchards
Autor: Grant Blackwell, Jayson Benge, Catriona J. MacLeod
Publikováno v: Journal of Applied Ecology.
Summary 1. Organic farming is often promoted as a solution for counteracting the adverse impacts of agricultural intensification on biodiversity. However, it is unclear whether the biodiversity benefits derived from organic farming require an adoptio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a10340ebdc9197f44a2d0c5760edc978
https://doi.org/10.1111/j.1365-2664.2012.02135.x
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