Small Rodent Populations and Food Supply in a Derbyshire Ashwood

Flowerdew, J. R.; Gardner, Geoffrey

doi:10.2307/3667

Cited by 50 publications

(53 citation statements)

References 18 publications

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“…Fatores fisiológicos também podem influenciar a sazonalidade da floração e frutificação (Primack 1985a). O ciclo reprodutivo das plantas pode ser afetado pela quantidade de nutrientes disponíveis no solo (Zagt 1997) e, muitas vezes, quando a deficiência de recursos torna-se acentuada em função de frutificações anteriores, um padrão supra-anual de frutificação pode ser observado (Flowerdew & Gardner 1978). Florescer sincronizadamente favorece a atração de polinizadores facilitando o fluxo de pólen e a reprodução cruzada (Marquis 1988).…”

Section: Introductionunclassified

Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil

Pedroni¹,

Sanchez²,

Santos³

2002

Rev. bras. Bot.

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-(Phenology of copaíba (Copaifera langsdorffii Desf. -Leguminosae, Caesalpinioideae) in a semideciduous forest, southeastern Brazil). Plant phenology is concerned with the timing of recurring events, and is poorly known for tropical forest species, although this ecosystem has the greatest diversity of phenological patterns. A phenological study was carried out from February/1991 to April/1993. Thirty six trees were systematically observed biweekly for changes on leaf fall, leaf flushing, flowering and fruiting. Leaf fall and flushing were synchronized phases. These events always occurred at the end of dry season (leaf fall) and start of rainy season (leaf flushing) being clearly related with precipitation. The flowering occurred in the rainy season, and fruiting during the dry season. Fruiting did not show an annual cycle, but years which massive fruiting being followed by non productive years. Other non climatic factors, like seed dispersers and seed predators were also likely to affect fruiting.RESUMO -(Fenologia da copaíba (Copaifera langsdorffii Desf. -Leguminosae, Caesalpinioideae) em uma floresta semidecídua no Sudeste do Brasil). A fenologia da emissão foliar, floração e frutificação para espécies de florestas tropicais é pouco conhecida, embora estes ecossistemas apresentem grande diversidade de padrões fenológicos. Foi estudada, de fevereiro de 1991 a abril de 1993, a fenologia da copaíba (Copaifera langsdorffii Desf.) na Reserva de Santa Genebra. Foram feitas observações em 36 indivíduos e analisadas queda de folhas, brotamento, floração e frutificação. A queda de folhas e o brotamento foram as fenofases mais sincronizadas dentro da população. Estes eventos ocorreram no final da estação seca (queda de folhas) e início da estação chuvosa (brotamento) e foram relacionados principalmente com a precipitação. A floração ocorreu na estação chuvosa e a frutificação na estação seca. A frutificação ocorreu em ciclos supra-anuais, com anos de produção intensa seguidos de anos sem frutificação. Além dos fatores climáticos, as interações com dispersores e predadores de sementes também parecem influenciar o padrão de frutificação observado em Copaifera langsdorffii.

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Section: Introductionunclassified

Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil

Pedroni¹,

Sanchez²,

Santos³

2002

Rev. bras. Bot.

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“…The results of studies on the food biology of the bank vole, Clethrionomys glareolus (Schreber 1780), in many European deciduous forests (Miller, 1954;Drożdż, 1966;Holisova, 1966Holisova, , 1971Holisova, , 1972Watts, 1968;Hansson, 1971Hansson, , 1979Novikov, 1970;Zemanek, 1972;Obrtel & Holisova, 1974Andrzejewski, 1975;Gębczyńska, 1976;Flowerdew & Gardner, 1978;Smal & Fairley, 1980a, 1980b suggest that some of their food has to consist of high-energy items, e.g. large seeds from deciduous trees or animal material.…”

Section: Introductionmentioning

confidence: 99%

Food of the bank vole in northern Finnish spruce forests

Viro¹,

Sulkava²

1985

Acta Theriol.

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“…Traces of chitin have been found amongst the stomach and gut contents of wood mice Apodemus sylvaticus and bank voles Clethrionomys glareolus throughout the year, indicating that insects and other invertebrates are routinely eaten in small quantities (Watts, 1968;Flowerdew & Gardner, 1978). However, no hymenopteran remains have been reported.…”

Section: Discussionmentioning

confidence: 99%

Causes of colony mortality in bumblebees

Goulson

O’Connor

Park

2017

Animal Conservation

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Despite considerable interest in bumblebees and their conservation, few data are available on basic life-history parameters such as rates of nest predation and the proportion of wild nests that survive to reproduction. Here, we use a combination of data collected by volunteers and our own direct observations which together describe the fate of 908 bumblebee nests in the UK between 2008 and 2013. Overall, 75% of nests produced gynes, with marked differences between species; the recently arrived species, Bombus hypnorum, had the highest proportion of colonies surviving to gyne production (96%), with the long-tongued Bombus hortorum having the lowest success in reaching gyne production (41%). There were also large differences between bumblebee species in the timing of nesting, gyne production and nest mortality, with B. hypnorum and Bombus pratorum nests starting early, producing most gynes before mid-summer, and then dying off in June, whereas at the other end of the spectrum Bombus pascuorum nests started late and produced gynes mainly in August. There was evidence for the partial or complete destruction of 100 nests. The main reported causes were excavation by a large mammal, probably primarily Meles meles (50%). Human disturbance was the second greatest cause of nest mortality (26%), followed by flooding (7%). Wax moth infestations were common (55% of nests), with B. hypnorum nests most frequently infested. However, infestation did not results in reduced likelihood of gyne production, perhaps because infestations often do not become severe until after some gynes have been produced. Our study provides novel insights into the little-studied biology of wild bumblebee nests and factors affecting their survival; collecting similar datasets in the future would enable fascinating comparisons as to how parameters such as nest survival and reproduction are changing over time, and are affected by management interventions for bees.

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Small Rodent Populations and Food Supply in a Derbyshire Ashwood

Cited by 50 publications

References 18 publications

Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil

Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil

Food of the bank vole in northern Finnish spruce forests

Causes of colony mortality in bumblebees

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