The Experts below are selected from a list of 72 Experts worldwide ranked by ideXlab platform
Guillermo C Amico - One of the best experts on this subject based on the ideXlab platform.
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birds as suppliers of seed dispersal in Temperate Ecosystems conservation guidelines from real world landscapes
Conservation Biology, 2010Co-Authors: Daniel Garcia, Regino Zamora, Guillermo C AmicoAbstract:Seed dispersal by animals is considered a pivotal Ecosystem function that drives plant-community dynamics in natural habitats and vegetation recovery in human-altered landscapes. Nevertheless, there is a lack of suitable ecological knowledge to develop basic conservation and management guidelines for this Ecosystem service. Essential questions, such as how well the abundance of frugivorous animals predicts seeding function in different Ecosystems and how anthropogenic landscape heterogeneity conditions the role of dispersers, remain poorly answered. In three Temperate Ecosystems, we studied seed dispersal by frugivorous birds in landscape mosaics shaped by human disturbance. By applying a standardized design across systems, we related the frequency of occurrence of bird-dispersed seeds throughout the landscape to the abundance of birds, the habitat features, and the abundance of fleshy fruits. Abundance of frugivorous birds in itself predicted the occurrence of dispersed seeds throughout the landscape in all Ecosystems studied. Even those landscape patches impoverished due to anthropogenic disturbance received some dispersed seeds when visited intensively by birds. Nonetheless, human-caused landscape degradation largely affected seed-deposition patterns by decreasing cover of woody vegetation or availability of fruit resources that attracted birds and promoted seed dispersal. The relative role of woody cover and fruit availability in seed dispersal by birds differed among Ecosystems. Our results suggest that to manage seed dispersal for Temperate Ecosystem preservation or restoration one should consider abundance of frugivorous birds as a surrogate of landscape-scale seed dispersal and an indicator of patch quality for the dispersal function; woody cover and fruit resource availability as key landscape features that drive seedfall patterns; and birds as mobile links that connect landscape patches of different degrees of degradation and habitat quality via seed deposition.
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birds as suppliers of seed dispersal in Temperate Ecosystems conservation guidelines from real world landscapes
Conservation Biology, 2010Co-Authors: Daniel Garcia, Regino Zamora, Guillermo C AmicoAbstract:: Seed dispersal by animals is considered a pivotal Ecosystem function that drives plant-community dynamics in natural habitats and vegetation recovery in human-altered landscapes. Nevertheless, there is a lack of suitable ecological knowledge to develop basic conservation and management guidelines for this Ecosystem service. Essential questions, such as how well the abundance of frugivorous animals predicts seeding function in different Ecosystems and how anthropogenic landscape heterogeneity conditions the role of dispersers, remain poorly answered. In three Temperate Ecosystems, we studied seed dispersal by frugivorous birds in landscape mosaics shaped by human disturbance. By applying a standardized design across systems, we related the frequency of occurrence of bird-dispersed seeds throughout the landscape to the abundance of birds, the habitat features, and the abundance of fleshy fruits. Abundance of frugivorous birds in itself predicted the occurrence of dispersed seeds throughout the landscape in all Ecosystems studied. Even those landscape patches impoverished due to anthropogenic disturbance received some dispersed seeds when visited intensively by birds. Nonetheless, human-caused landscape degradation largely affected seed-deposition patterns by decreasing cover of woody vegetation or availability of fruit resources that attracted birds and promoted seed dispersal. The relative role of woody cover and fruit availability in seed dispersal by birds differed among Ecosystems. Our results suggest that to manage seed dispersal for Temperate Ecosystem preservation or restoration one should consider abundance of frugivorous birds as a surrogate of landscape-scale seed dispersal and an indicator of patch quality for the dispersal function; woody cover and fruit resource availability as key landscape features that drive seedfall patterns; and birds as mobile links that connect landscape patches of different degrees of degradation and habitat quality via seed deposition. Resumen: La dispersion de semillas por animales se considera como una function ecosistemica crucial, que controla las dinamicas de las comunidades de plantas en los habitats naturales y la recuperacion de la vegetacion en los paisajes alterados por el hombre. Sin embargo, existe una carencia de conocimiento ecologico adecuado para desarrollar directrices basicas de conservacion y gestion de este servicio ecosistemico. Cuestiones esenciales, tales como hasta que punto la abundancia de animales frugivoros sirve para predecir la funcion de dispersion de semillas, o si la heterogeneidad paisajistica antropogenica condiciona el papel de los dispersantes, permanecen sin respuesta. Estudiamos, en tres ecosistemas templados, la dispersion de semillas por aves frugivoras en mosaicos paisajisticos moldeados por las perturbaciones antropicas. Mediante la aplicacion de un diseno estandarizado en todos los sistemas, relacionamos la frecuencia de aparicion de semillas dispersadas por aves a lo largo del paisaje con la abundancia de aves, los rasgos del habitat y la abundancia de frutos carnosos. La abundancia de aves frugivoras predijo, por si misma, la aparicion de semillas dispersadas a lo largo del paisaje en todos los ecosistemas estudiados. Incluso aquellos rodales paisajisticos empobrecidos por perturbaciones antropicas recibieron algunas semillas dispersadas tras ser visitados intensamente por las aves. No obstante, la degradacion antropogenica del paisaje afecto ampliamente a los patrones de deposicion de semillas, reduciendo la cobertura de vegetacion lenosa y la disponibilidad de recursos frutales que atraian a las aves y fomentaban la dispersion de semillas. El papel relativo de la cobertura lenosa y la disponibilidad de frutos en la dispersion de semillas por aves difirio entre ecosistemas. Nuestros resultados sugieren que, para gestionar la dispersion de semillas de cara a conservar o restaurar los ecosistemas templados, se debe considerar la abun dancia de aves frugivoras como un parametro representante de la dispersion de semillas a escala de paisaje y un indicador de la calidad del rodal para la function de dispersion, la cobertura lenosa y la disponibilidad de recurso frutal como rasgos paisajisticos clave que controlan los patrones de deposicion de semillas, y a las aves como vinculos moviles que conectan, a traves de la deposicion de semillas, rodales de paisaje con diferentes grados de degradacion y calidad de habitat..
Daniel Garcia - One of the best experts on this subject based on the ideXlab platform.
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birds as suppliers of seed dispersal in Temperate Ecosystems conservation guidelines from real world landscapes
Conservation Biology, 2010Co-Authors: Daniel Garcia, Regino Zamora, Guillermo C AmicoAbstract:Seed dispersal by animals is considered a pivotal Ecosystem function that drives plant-community dynamics in natural habitats and vegetation recovery in human-altered landscapes. Nevertheless, there is a lack of suitable ecological knowledge to develop basic conservation and management guidelines for this Ecosystem service. Essential questions, such as how well the abundance of frugivorous animals predicts seeding function in different Ecosystems and how anthropogenic landscape heterogeneity conditions the role of dispersers, remain poorly answered. In three Temperate Ecosystems, we studied seed dispersal by frugivorous birds in landscape mosaics shaped by human disturbance. By applying a standardized design across systems, we related the frequency of occurrence of bird-dispersed seeds throughout the landscape to the abundance of birds, the habitat features, and the abundance of fleshy fruits. Abundance of frugivorous birds in itself predicted the occurrence of dispersed seeds throughout the landscape in all Ecosystems studied. Even those landscape patches impoverished due to anthropogenic disturbance received some dispersed seeds when visited intensively by birds. Nonetheless, human-caused landscape degradation largely affected seed-deposition patterns by decreasing cover of woody vegetation or availability of fruit resources that attracted birds and promoted seed dispersal. The relative role of woody cover and fruit availability in seed dispersal by birds differed among Ecosystems. Our results suggest that to manage seed dispersal for Temperate Ecosystem preservation or restoration one should consider abundance of frugivorous birds as a surrogate of landscape-scale seed dispersal and an indicator of patch quality for the dispersal function; woody cover and fruit resource availability as key landscape features that drive seedfall patterns; and birds as mobile links that connect landscape patches of different degrees of degradation and habitat quality via seed deposition.
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birds as suppliers of seed dispersal in Temperate Ecosystems conservation guidelines from real world landscapes
Conservation Biology, 2010Co-Authors: Daniel Garcia, Regino Zamora, Guillermo C AmicoAbstract:: Seed dispersal by animals is considered a pivotal Ecosystem function that drives plant-community dynamics in natural habitats and vegetation recovery in human-altered landscapes. Nevertheless, there is a lack of suitable ecological knowledge to develop basic conservation and management guidelines for this Ecosystem service. Essential questions, such as how well the abundance of frugivorous animals predicts seeding function in different Ecosystems and how anthropogenic landscape heterogeneity conditions the role of dispersers, remain poorly answered. In three Temperate Ecosystems, we studied seed dispersal by frugivorous birds in landscape mosaics shaped by human disturbance. By applying a standardized design across systems, we related the frequency of occurrence of bird-dispersed seeds throughout the landscape to the abundance of birds, the habitat features, and the abundance of fleshy fruits. Abundance of frugivorous birds in itself predicted the occurrence of dispersed seeds throughout the landscape in all Ecosystems studied. Even those landscape patches impoverished due to anthropogenic disturbance received some dispersed seeds when visited intensively by birds. Nonetheless, human-caused landscape degradation largely affected seed-deposition patterns by decreasing cover of woody vegetation or availability of fruit resources that attracted birds and promoted seed dispersal. The relative role of woody cover and fruit availability in seed dispersal by birds differed among Ecosystems. Our results suggest that to manage seed dispersal for Temperate Ecosystem preservation or restoration one should consider abundance of frugivorous birds as a surrogate of landscape-scale seed dispersal and an indicator of patch quality for the dispersal function; woody cover and fruit resource availability as key landscape features that drive seedfall patterns; and birds as mobile links that connect landscape patches of different degrees of degradation and habitat quality via seed deposition. Resumen: La dispersion de semillas por animales se considera como una function ecosistemica crucial, que controla las dinamicas de las comunidades de plantas en los habitats naturales y la recuperacion de la vegetacion en los paisajes alterados por el hombre. Sin embargo, existe una carencia de conocimiento ecologico adecuado para desarrollar directrices basicas de conservacion y gestion de este servicio ecosistemico. Cuestiones esenciales, tales como hasta que punto la abundancia de animales frugivoros sirve para predecir la funcion de dispersion de semillas, o si la heterogeneidad paisajistica antropogenica condiciona el papel de los dispersantes, permanecen sin respuesta. Estudiamos, en tres ecosistemas templados, la dispersion de semillas por aves frugivoras en mosaicos paisajisticos moldeados por las perturbaciones antropicas. Mediante la aplicacion de un diseno estandarizado en todos los sistemas, relacionamos la frecuencia de aparicion de semillas dispersadas por aves a lo largo del paisaje con la abundancia de aves, los rasgos del habitat y la abundancia de frutos carnosos. La abundancia de aves frugivoras predijo, por si misma, la aparicion de semillas dispersadas a lo largo del paisaje en todos los ecosistemas estudiados. Incluso aquellos rodales paisajisticos empobrecidos por perturbaciones antropicas recibieron algunas semillas dispersadas tras ser visitados intensamente por las aves. No obstante, la degradacion antropogenica del paisaje afecto ampliamente a los patrones de deposicion de semillas, reduciendo la cobertura de vegetacion lenosa y la disponibilidad de recursos frutales que atraian a las aves y fomentaban la dispersion de semillas. El papel relativo de la cobertura lenosa y la disponibilidad de frutos en la dispersion de semillas por aves difirio entre ecosistemas. Nuestros resultados sugieren que, para gestionar la dispersion de semillas de cara a conservar o restaurar los ecosistemas templados, se debe considerar la abun dancia de aves frugivoras como un parametro representante de la dispersion de semillas a escala de paisaje y un indicador de la calidad del rodal para la function de dispersion, la cobertura lenosa y la disponibilidad de recurso frutal como rasgos paisajisticos clave que controlan los patrones de deposicion de semillas, y a las aves como vinculos moviles que conectan, a traves de la deposicion de semillas, rodales de paisaje con diferentes grados de degradacion y calidad de habitat..
Regino Zamora - One of the best experts on this subject based on the ideXlab platform.
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birds as suppliers of seed dispersal in Temperate Ecosystems conservation guidelines from real world landscapes
Conservation Biology, 2010Co-Authors: Daniel Garcia, Regino Zamora, Guillermo C AmicoAbstract:Seed dispersal by animals is considered a pivotal Ecosystem function that drives plant-community dynamics in natural habitats and vegetation recovery in human-altered landscapes. Nevertheless, there is a lack of suitable ecological knowledge to develop basic conservation and management guidelines for this Ecosystem service. Essential questions, such as how well the abundance of frugivorous animals predicts seeding function in different Ecosystems and how anthropogenic landscape heterogeneity conditions the role of dispersers, remain poorly answered. In three Temperate Ecosystems, we studied seed dispersal by frugivorous birds in landscape mosaics shaped by human disturbance. By applying a standardized design across systems, we related the frequency of occurrence of bird-dispersed seeds throughout the landscape to the abundance of birds, the habitat features, and the abundance of fleshy fruits. Abundance of frugivorous birds in itself predicted the occurrence of dispersed seeds throughout the landscape in all Ecosystems studied. Even those landscape patches impoverished due to anthropogenic disturbance received some dispersed seeds when visited intensively by birds. Nonetheless, human-caused landscape degradation largely affected seed-deposition patterns by decreasing cover of woody vegetation or availability of fruit resources that attracted birds and promoted seed dispersal. The relative role of woody cover and fruit availability in seed dispersal by birds differed among Ecosystems. Our results suggest that to manage seed dispersal for Temperate Ecosystem preservation or restoration one should consider abundance of frugivorous birds as a surrogate of landscape-scale seed dispersal and an indicator of patch quality for the dispersal function; woody cover and fruit resource availability as key landscape features that drive seedfall patterns; and birds as mobile links that connect landscape patches of different degrees of degradation and habitat quality via seed deposition.
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birds as suppliers of seed dispersal in Temperate Ecosystems conservation guidelines from real world landscapes
Conservation Biology, 2010Co-Authors: Daniel Garcia, Regino Zamora, Guillermo C AmicoAbstract:: Seed dispersal by animals is considered a pivotal Ecosystem function that drives plant-community dynamics in natural habitats and vegetation recovery in human-altered landscapes. Nevertheless, there is a lack of suitable ecological knowledge to develop basic conservation and management guidelines for this Ecosystem service. Essential questions, such as how well the abundance of frugivorous animals predicts seeding function in different Ecosystems and how anthropogenic landscape heterogeneity conditions the role of dispersers, remain poorly answered. In three Temperate Ecosystems, we studied seed dispersal by frugivorous birds in landscape mosaics shaped by human disturbance. By applying a standardized design across systems, we related the frequency of occurrence of bird-dispersed seeds throughout the landscape to the abundance of birds, the habitat features, and the abundance of fleshy fruits. Abundance of frugivorous birds in itself predicted the occurrence of dispersed seeds throughout the landscape in all Ecosystems studied. Even those landscape patches impoverished due to anthropogenic disturbance received some dispersed seeds when visited intensively by birds. Nonetheless, human-caused landscape degradation largely affected seed-deposition patterns by decreasing cover of woody vegetation or availability of fruit resources that attracted birds and promoted seed dispersal. The relative role of woody cover and fruit availability in seed dispersal by birds differed among Ecosystems. Our results suggest that to manage seed dispersal for Temperate Ecosystem preservation or restoration one should consider abundance of frugivorous birds as a surrogate of landscape-scale seed dispersal and an indicator of patch quality for the dispersal function; woody cover and fruit resource availability as key landscape features that drive seedfall patterns; and birds as mobile links that connect landscape patches of different degrees of degradation and habitat quality via seed deposition. Resumen: La dispersion de semillas por animales se considera como una function ecosistemica crucial, que controla las dinamicas de las comunidades de plantas en los habitats naturales y la recuperacion de la vegetacion en los paisajes alterados por el hombre. Sin embargo, existe una carencia de conocimiento ecologico adecuado para desarrollar directrices basicas de conservacion y gestion de este servicio ecosistemico. Cuestiones esenciales, tales como hasta que punto la abundancia de animales frugivoros sirve para predecir la funcion de dispersion de semillas, o si la heterogeneidad paisajistica antropogenica condiciona el papel de los dispersantes, permanecen sin respuesta. Estudiamos, en tres ecosistemas templados, la dispersion de semillas por aves frugivoras en mosaicos paisajisticos moldeados por las perturbaciones antropicas. Mediante la aplicacion de un diseno estandarizado en todos los sistemas, relacionamos la frecuencia de aparicion de semillas dispersadas por aves a lo largo del paisaje con la abundancia de aves, los rasgos del habitat y la abundancia de frutos carnosos. La abundancia de aves frugivoras predijo, por si misma, la aparicion de semillas dispersadas a lo largo del paisaje en todos los ecosistemas estudiados. Incluso aquellos rodales paisajisticos empobrecidos por perturbaciones antropicas recibieron algunas semillas dispersadas tras ser visitados intensamente por las aves. No obstante, la degradacion antropogenica del paisaje afecto ampliamente a los patrones de deposicion de semillas, reduciendo la cobertura de vegetacion lenosa y la disponibilidad de recursos frutales que atraian a las aves y fomentaban la dispersion de semillas. El papel relativo de la cobertura lenosa y la disponibilidad de frutos en la dispersion de semillas por aves difirio entre ecosistemas. Nuestros resultados sugieren que, para gestionar la dispersion de semillas de cara a conservar o restaurar los ecosistemas templados, se debe considerar la abun dancia de aves frugivoras como un parametro representante de la dispersion de semillas a escala de paisaje y un indicador de la calidad del rodal para la function de dispersion, la cobertura lenosa y la disponibilidad de recurso frutal como rasgos paisajisticos clave que controlan los patrones de deposicion de semillas, y a las aves como vinculos moviles que conectan, a traves de la deposicion de semillas, rodales de paisaje con diferentes grados de degradacion y calidad de habitat..
Matt S Mcglone - One of the best experts on this subject based on the ideXlab platform.
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a conceptual framework for predicting Temperate Ecosystem sensitivity to human impacts on fire regimes
Global Ecology and Biogeography, 2013Co-Authors: David B Mcwethy, Philip E Higuera, Cathy Whitlock, Thomas T Veblen, David M J S Bowman, Geoffrey J Cary, Simon G Haberle, Robert E Keane, Bruce D Maxwell, Matt S McgloneAbstract:Aim The increased incidence of large fires around much of the world in recent decades raises questions about human and non-human drivers of fire and the likelihood of increased fire activity in the future. The purpose of this paper is to outline a conceptual framework for examining where human-set fires and feedbacks are likely to be most pronounced in Temperate forests world-wide and to establish and test a methodology for evaluating this framework using palaeoecological records.
David B Mcwethy - One of the best experts on this subject based on the ideXlab platform.
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a conceptual framework for predicting Temperate Ecosystem sensitivity to human impacts on fire regimes
Global Ecology and Biogeography, 2013Co-Authors: David B Mcwethy, Philip E Higuera, Cathy Whitlock, Thomas T Veblen, David M J S Bowman, Geoffrey J Cary, Simon G Haberle, Robert E Keane, Bruce D Maxwell, Matt S McgloneAbstract:Aim The increased incidence of large fires around much of the world in recent decades raises questions about human and non-human drivers of fire and the likelihood of increased fire activity in the future. The purpose of this paper is to outline a conceptual framework for examining where human-set fires and feedbacks are likely to be most pronounced in Temperate forests world-wide and to establish and test a methodology for evaluating this framework using palaeoecological records.
