Understanding the role of chronic environmental disturbance in the context of island biogeographic theory

Villa, Ferdinando; Rossi, Orazio; Sartore, Franco

doi:10.1007/bf02589019

Cited by 22 publications

(28 citation statements)

References 34 publications

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“…These are characterized by employing stochasticity in at least one of their mechanisms. This might be, e.g., the selection of the number of offspring in a reproduction event (e.g., [22]) or dispersal decisions (e.g., [23]). In contrast, deterministic models are often described purely analytically by a set of differential equations [24,25], although in some deterministic models, stochasticity can be easily switched on [26].…”

Section: Propertiesmentioning

confidence: 99%

“…While spatially explicit and stochastic models were common in the earliest studies [22,27], more recently published models tend to be less often spatially explicit [28,29], which mirrors the popularity of the unified neutral theory of biodiversity (UNTB; [30]). Because the UNTB inspired a large portion of the later models, we considered it an additional category.…”

Section: Propertiesmentioning

confidence: 99%

“…This also shows a positive trend with stochasticity, with deterministic analytical models usually focusing on higher organizational levels (see the diametrical axes "focal.level" and "stochastic" in Figure 2), such as population or species numbers [26,33]. In contrast, stochastic models often are individual based [22,31]. The agent level often also determines the focal level (Table 1), which is on the same or a higher organizational level as the agent level.…”

Section: Propertiesmentioning

confidence: 99%

“…This can, for instance, be the reproductive output [22,24] or the competition strength [36] and is reflected as the number of non-neutral niche axes ( Table 1). The total number of parameters ranges from one to 14 (Table 1).…”

Section: Propertiesmentioning

confidence: 99%

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Biodiversity Dynamics on Islands: Explicitly Accounting for Causality in Mechanistic Models

Leidinger

Cabral

2017

Diversity

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Island biogeography remains a popular topic in ecology and has gained renewed interest due to recent theoretical development. As experimental investigation of the theory is difficult to carry out, mechanistic simulation models provide useful alternatives. Several eco-evolutionary mechanisms have been identified to affect island biodiversity, but integrating more than a few of these processes into models remains a challenge. To get an overview of what processes mechanistic island models have integrated so far and what conclusions they came to, we conducted an exhaustive literature review of studies featuring island-specific mechanistic models. This was done using an extensive systematic literature search with subsequent manual filtering. We obtained a list of 28 studies containing mechanistic island models, out of 647 total hits. Mechanistic island models differ greatly in their integrated processes and computational structure. Their individual findings range from theoretical (such as humped-shaped extinction rates for oceanic islands) to system-specific dynamics (e.g., equilibrium and non-equilibrium dynamics for Galápagos' birds). However, most models so far only integrate theories and processes pair-wise, while focusing on hypothetical systems. Trophic interactions and explicit micro-evolution are largely underrepresented in models. We expect future models to continue integrating processes, thus promoting the full appraisal of biodiversity dynamics.

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Section: Propertiesmentioning

confidence: 99%

Section: Propertiesmentioning

confidence: 99%

Section: Propertiesmentioning

confidence: 99%

Section: Propertiesmentioning

confidence: 99%

See 2 more Smart Citations

Biodiversity Dynamics on Islands: Explicitly Accounting for Causality in Mechanistic Models

Leidinger

Cabral

2017

Diversity

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“…Si bien, este efecto probablemente sea menor que el inducido por la complejidad del hábitat, ya que la mayor parte de las especies parece que se alimentan de los fondos blandos cercanos (Ardizzone et al, 1997a;Bortone y Nelson, 1995). También hay que considerar los posibles efectos que puedan tener sobre la tasa de colonización del poblamiento total otros factores como la estacionalidad (Osman, 1978;Schoener, 1974), las características autoecológicas de las especies implicadas (Simberloff, 1978;Villa et al, 1992) o las perturbaciones de tipo natural (p.e., los temporales) o antrópico (Herwitz et al, 1996) Podemos concluir que, aunque se aprecia una cierta tendencia hacia una mayor estructuración y complejidad, los pará-metros del poblamiento refl ejan una acusada fl uctuación temporal a lo largo de todo el periodo de estudio, que se considera típico de las primeras fases de la ocupación del arrecife (Bohnsack et al, 1991). A una escala temporal anual, los resultados indican un cierto nivel de estabilidad del poblamiento íctico (sensu Snoeijs y Prentice, 1989) entre 1991 y 1992, ya que los muestreos de este último año fueron muy similares ÍNDICE a los del primero.…”

Section: Discussionunclassified

Restauración del medio marino en la reserva marina de Tabarca (Alicante, España): estructura y variaciones temporales de la ictiofauna asociada al arrecife artificial

Bayle-Sempere¹

2011

MDTRRA

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Restoration of Fragmented Landscapes for the Conservation of Birds: A General Framework and Specific Recommendations for Urbanizing Landscapes

Marzluff¹,

Ewing²

Urban Ecology

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Humans fragment landscapes to the detriment of wildlife. We review why fragmentation is detrimental to wildlife (especially birds), review the effects of urbanization on birds inhabiting nearby native habitats, suggest how restoration ecologists can minimize these effects, and discuss future research needs. We emphasize the importance of individual fitness to determining community composition. This means that reproduction, survivorship, and dispersal (not simply community composition) must be maintained, restored, and monitored. We suggest that the severity of the effects of fragmentation are determined by (1) the natural disturbance regime, (2) the similarity of the anthropogenic matrix to the natural matrix, and (3) the persistence of the anthropogenic change. As a result, urbanization is likely to produce greater effects of fragmentation than either agriculture or timber harvest. Restoration ecologists, land managers, and urban planners can help maintain native birds in fragmented landscapes by a combination of short-and long-term actions designed to restore ecological function (not just shape and structure) to fragments, including: (1) maintaining native vegetation, deadwood, and other nesting structures in the fragment, (2) managing the landscape surrounding the fragment (matrix), not just the fragment, (3) making the matrix more like the native habitat fragments, (4) increasing the foliage height diversity within fragments, (5) designing buffers that reduce penetration of undesirable agents from the matrix, (6) recognizing that human activity is not compatible with interior conditions, (7) actively managing mammal populations in fragments, (8) discouraging open lawn on public and private property, (9) providing statutory recognition of the value of complexes of small wetlands, (10) integrating urban parks into the native habitat system, (11) anticipating urbanization and seeking creative ways to increase native habitat and manage it collectively, (12) reducing the growing effects of urbanization on once remote natural areas, (13) realizing that fragments may be best suited to conserve only a few species, (14) developing monitoring programs that measure fitness, and (15) developing a new educational paradigm.

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Understanding the role of chronic environmental disturbance in the context of island biogeographic theory

Cited by 22 publications

References 34 publications

Biodiversity Dynamics on Islands: Explicitly Accounting for Causality in Mechanistic Models

Biodiversity Dynamics on Islands: Explicitly Accounting for Causality in Mechanistic Models

Restauración del medio marino en la reserva marina de Tabarca (Alicante, España): estructura y variaciones temporales de la ictiofauna asociada al arrecife artificial

Restoration of Fragmented Landscapes for the Conservation of Birds: A General Framework and Specific Recommendations for Urbanizing Landscapes

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