Results 71 to 80 of about 5,417,430 (208)

Genomics reveals two distinct invasive lineages of Pereskia aculeata Miller in Australia: Implications for biological control

open access: yesBiological Control
Understanding the invasion history of weeds can assist practitioners in making informed decisions about weed management. This information often plays a vital role in the selection of potential biological control (biocontrol) agents from the native range ...
Muhammad Nawaz   +2 more
doaj   +1 more source

Biodiversity shapes tree species aggregations in tropical forests [PDF]

open access: yes, 2008
Spatial patterns of conspecific trees are considered as the consequences of biological interactions and environmental influences. They also reflect species interactions in plant communities.
Chang-Fu Hsieh   +2 more
core  

Influence of alternative packaging on the storage and quality of jatobá seeds (Hymenaea courbaril L.) [PDF]

open access: yesBrazilian Journal of Biology
Jatobá (Hymenaea courbaril L.) is a tree species of the Fabaceae family with great socio-environmental importance Although the economic exploitation of this crop is increasing mainly in the Amazon region, the collection of information is still limited ...
B. S. Lins   +9 more
doaj   +1 more source

Increase of an introduced bird competitor in old-growth forest associated with restoration [PDF]

open access: yes, 2012
Many successful invasions involve long initial periods in which the invader exists at low densities followed by sudden population increases. The reasons for such time-lags remain poorly understood.
Freed, Leonard A.   +7 more
core   +1 more source

Land use dynamics, tree diversity and local perception of dry forest decline in southern Burkina Faso, West Africa [PDF]

open access: yes, 2008
Conversion of tropical forests into cropland and pasture has risen incessantly during the last few decades. With the aim of providing evidence for informed-decision on sustainable forest management, this thesis examined the dynamics of land use change in
Paré, Souleymane
core   +1 more source

Patterns of red tree vole distribution and habitat suitability: implications for surveys and conservation planning

open access: yesEcosphere, 2016
Environmental regulations often require wildlife surveys prior to habitat disturbance to avoid impacts or as the basis for planning mitigation, yet project‐level surveys may not provide the insights needed to guide long‐term management. Management of the
Daniel K. Rosenberg   +5 more
doaj   +1 more source

Regeneration in gap models: priority issues for studying forest responses to climate change [PDF]

open access: yes, 2001
Recruitment algorithms in forest gap models are examined with particular regard to their suitability for simulating forest ecosystem responses to a changing climate. The traditional formulation of recruitment is found limiting in three areas.
Zimmermann, N.E.   +12 more
core   +1 more source

The sex ratio of spruce bark beetles - Ips typographus (Coleoptera: Curculionidae: Scolytinae) captured in different types of traps

open access: yesJournal of Forest Science
In forest protection, various types of trap systems are used against spruce bark beetles to treat the foci of infested areas. Traditionally, these include pheromone traps, treated trap trees, and recently also the application of Storanet insecticide nets
Marie Zahradníková   +2 more
doaj   +1 more source

Exigências nutricionais da grápia em Argissolo Vermelho distrófico arênico: efeito da adubação NPK no teor de nutrientes nos tecidos Nutritional demand of grápia in Paleaudalf soil: effect of NPK fertilization on content of nutrients in the tissues

open access: yesCiência Rural, 2007
A grápia (Apuleia leiocarpa (Vog.) Macbride) é uma espécie florestal nativa de ampla utilidade na indústria madeireira, motivo pelo qual, atualmente, encontra-se em processo de extinção.
Fernando Teixeira Nicoloso   +4 more
doaj   +1 more source

Métodos para quebra de dormência de unidades de dispersão de Zizyphus joazeiro Mart. (Rhamnaceae) Methods for dormancy breaking of Zizyphus joazeiro Mart. dispersal units

open access: yesRevista Árvore, 2008
O Z. joazeiro é uma espécie florestal de grande importância socioeconômica para a Região Nordeste do Brasil e apresenta dificuldades na germinação das unidades de dispersão, causada pela impermeabilidade à água.
Edna Ursulino Alves   +7 more
doaj   +1 more source

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