Results 61 to 70 of about 59,670,359 (205)

Multi-temporal satellite mapping of coal mine expansion and forest loss in the Hasdeo Arand Forest, India

open access: yesDiscover Sustainability
Open-cast coal mining in forested regions presents a persistent sustainability challenge, as cumulative physical disturbance often unfolds incrementally and remains poorly captured by administrative clearance records.
Sai Ganesh Veeravalli   +2 more
doaj   +1 more source

Between Autonomy and Dependency: The Territorialisation of Agroecology in the Colombian Peasant Reserve Zones

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT Peasant movements employ a spectrum of politico‐economic strategies for territorialising agroecology, ranging from autonomy to (inter)dependency. To substantiate this argument, I draw on qualitative fieldwork and historical analysis to examine the Colombian Peasant Reserve Zone movement's strategies for territorialising agroecology at both the
Daniel Ortiz Gallego
wiley   +1 more source

LAS CODORNICES DE BOSQUES Y SELVAS. RETOS DE MANEJO Y CONSERVACIÓN DE LA FAUNA SILVESTRE

open access: yesRevista Mexicana de Ciencias Forestales, 2018
Las codornices que habitan en bosques y selvas representan un buen modelo para analizar los retos que representan tanto el manejo como la conservación de la fauna silvestre, debido a su estrecha dependencia hacia esos ecosistemas.
openaire   +3 more sources

Molecular phylogenetic analysis sheds light on the diversity and evolutionary history of the Neotropical and African Triplophyllum (Tectariaceae)

open access: yesJournal of Systematics and Evolution, EarlyView.
We used a molecular approach to resolve the evolutionary lineages of Neotropical Triplophyllum, uncovering that current species circumscriptions are hindered by high morphological homoplasy in indument characters. Our results support the recognition of three new species and provide a necessary neotypification for T.
Mauricio Gonçalves Nunes   +6 more
wiley   +1 more source

Plantio direto de hortaliças orgânicas: estudo de caso em uma propriedade periurbana em Florianópolis, SC [PDF]

open access: yes, 2004
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias. Programa de Pós-Graduação em Agroecossistemas.As hortas são ambientes agrícolas resultantes da interação entre ações humanas, plantas (cultivadas e espontâneas)
Gomes, Guilherme
core  

Plano de manejo comunitário de jacarés na várzea do baixo rio Amazonas,Santarém – PA, Brasil

open access: yesBiotemas, 2013
As iniciativas de organização comunitária na várzea do baixo Amazonas apoiadas por acordos de pesca e planos de uso foram elaboradas para o ordenamento do uso dos recursos associados à melhoria da qualidade de vida local.
RAFAEL SÁ LEITÃO BARBOZA   +3 more
doaj   +1 more source

Tick‐borne diseases in subtropical dairy farming: The role of calf rearing strategies in antibody and antigen prevalence Enfermedades Transmitidas por Garrapatas en la Ganadería Lechera subtropical: El Papel de las Estrategias de Crianza de Terneros en la Prevalencia de Anticuerpos y Antígenos

open access: yesMedical and Veterinary Entomology, EarlyView.
Tropical farmers try to adapt calf‐rearing systems to temperate dairy industry standards. Calves in tick‐infested areas develop stronger immunity to TBD under controlled exposure to ticks. Early tick exposure promotes sustainable management, balancing tick infestation and developing TBD immunity.
Daniela Balseca   +11 more
wiley   +1 more source

Efeito do plantio de Pinus elliottii para a fauna edáfica e para a germinação de sementes: Estudos na Floresta Nacional de Três Barras [PDF]

open access: yes, 2016
TCC(graduação) - Universidade Federal de Santa Catarina. Campus Curitibanos. Engenharia Florestal.O Pinus elliottii é uma espécie exótica, muito comum na região sul do Brasil e possui grande importância econômica, sendo a principal fonte de madeira para ...
Ortiz, Danielle cristina
core  

Effects of essential amino acids on phagostimulation and reproduction in adults of the Mediterranean fruit fly Efectos de amino ácidos esenciales en la fago‐estimulación y reproducción en adultos de la mosca de las frutas del Mediterráneo

open access: yesPhysiological Entomology, EarlyView.
The phagostimulation and reproductive effects of individual essential amino acids, without other nutrient except fructose, were investigated. Methionine, Arginine and Leucine display significantly higher phagostimulation strength than fructose. Arginine and Methionine showed a significant improvement in reproductive activity compared to other tested ...
David Nestel   +6 more
wiley   +1 more source

Floral intra‐individual variation differs between morphs and is linked to pollen deposition in self‐incompatible distylous plants

open access: yesPlant Biology, EarlyView.
For most traits, floral intra‐individual variation was similar between morphs and populations with different pollinator guilds (bees and hummingbirds), potentially facilitating effective pollen transfer in distylous systems. Still, greater variation in corolla length increased pollen deposition in L‐morph flowers in the bee‐pollinated population ...
R. Trevizan   +6 more
wiley   +1 more source

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