Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Gregory D. Duckworth"'
Autor:
Gregory D. Duckworth, Annalie Melin, Jonathan F. Colville, Ruhan Slabbert, John S. Donaldson, Jeremy J. Midgley, Mathieu Rouget, Res Altwegg
Publikováno v:
Journal of Apicultural Research
Honey bees are the most economically important crop pollinator worldwide. They depend on a diversity of pollen for reproduction and colony growth. However, the influence of landscape composition on diversity and quantity of pollen collection by honey
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60de7411114d6ce0998902b6d54bc4f3
http://agritrop.cirad.fr/595685/
http://agritrop.cirad.fr/595685/
Autor:
Gregory D. Duckworth, Res Altwegg
Publikováno v:
Diversity & Distributions
Aim Protected areas are key conservation tools intended to increase biodiversity and reduce extinction risks of species and populations. However, the degree to which protected areas achieve their conservation goals is generally unknown for many prote
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bace6513956b4cf0eb6a88b54e63ebf2
http://europepmc.org/articles/PMC7163781
http://europepmc.org/articles/PMC7163781
Publikováno v:
Biological Conservation. 209:323-331
Grasslands are one of the most endangered ecosystems globally. Large tracts of grassland in the Great Plains, USA have been converted to cropland since the early 1900s, and woodlands are rapidly encroaching into many grasslands of the region due to c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e9b038e46820dc406b2fca2ba68e829
https://doi.org/10.1016/j.biocon.2017.02.028
https://doi.org/10.1016/j.biocon.2017.02.028
Autor:
Gregory D. Duckworth, Rheinhardt Scholtz, Frederick J Venter, Ursula M. Scharler, Gregory A. Kiker, Henry Mwambi
Publikováno v:
African Journal of Range and Forage Science; Vol 33, No 2 (2016); 91-100
Important drivers of woody cover in African savannas are rainfall, soil and nutrients, and disturbance factors, such as fire and herbivory. However, very little is known about how these drivers influence woody cover at specific height classes. The ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d33594811b2d1f3abf9e9c4c3fcb5e17
https://doi.org/10.2989/10220119.2016.1170726
https://doi.org/10.2989/10220119.2016.1170726
Sustainable harvesting practices are important for conserving plant species and their habitats; but also the livelihoods of those that depend on them. Aloe ferox, a valuable natural resource harvested for its leaves, is the focus of a recent rural de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c52fd7f2bba55b1f4dbdeeb462c2a5aa
https://ora.ox.ac.uk/objects/uuid:dcd1e2c3-9ce6-46d9-b1b2-f5a2d8117cbc
https://ora.ox.ac.uk/objects/uuid:dcd1e2c3-9ce6-46d9-b1b2-f5a2d8117cbc
Autor:
Gregory D. Duckworth, Res Altwegg
Publikováno v:
Ardea. 102:21-29
Weather and habitat-use are key factors that influence the survival of a species. A central goal in conservation biology is to gain a mechanistic understanding of how these quantities limit a species' range. We examined how weather, season and geogra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8b21c518d96873ccb4ecea7e38340d3
https://doi.org/10.5253/078.102.0104
https://doi.org/10.5253/078.102.0104
Publikováno v:
Ecosphere. 7
In contemporary society, protected areas are increasingly expected to justify their existence through the services that they provide to society. Protected areas offer many important cultural services, but appraisal of these nonmaterial benefits has g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1671e450ae1481d660348a5c0e498d1f
https://doi.org/10.1002/ecs2.1207
https://doi.org/10.1002/ecs2.1207
Publikováno v:
Journal of Ornithology. 153:421-430
A mechanistic understanding of species’ geographic range dynamics requires an understanding of the dynamics of populations at the edge of that range. Several ibis species are currently expanding their ranges, and the Hadeda Ibis (Bostrychia hagedas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9215a142bb0a06f6c642c74708cccd0
https://doi.org/10.1007/s10336-011-0758-2
https://doi.org/10.1007/s10336-011-0758-2
Publikováno v:
Diversity and Distributions. 16:765-772
Aim Climate limits the ranges of many animals, but the mechanism whereby it does so remains poorly understood. One explanation is that climate (e.g. temperature or rainfall) affects energy expenditure, eventually limiting where a species can occur. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f01a12d87f81c2b3884673e042586736
https://doi.org/10.1111/j.1472-4642.2010.00683.x
https://doi.org/10.1111/j.1472-4642.2010.00683.x