Edge effect
- Sent by Renato Goshima - 16/04/2007
- 0 comments
Edge effect: periphery areas of forest fragments are more suceptive to external impacts, leading to environment degradation from the outside towards the inside.
Leia MaisEdge effect: periphery areas of forest fragments are more suceptive to external impacts, leading to environment degradation from the outside towards the inside.
Leia Mais35cm Identification: the head is dark with a bege band on the eyebrows and another one on the neck. The throat is white, but unlike Falco rufigularis this ribbon is not extended up to the back of the neck. The chest is light brown with black dots, unlike Falco deiroleucus which presents this region orange. The belly is dark with white spots and there is a red patch near the tail. The tail is dark with three white bars. It is one of Brazilian commonest falcons since it inhabits open landscapes, included those disturbed by men. Feeds on small rodents and birds, reptiles and large insects. Like other falcons these are monogamous birds with fixed breeding grounds. The nest is built o...
Leia Mais13,5cm The most distinguishing features of this species are the yellowish-orange head and the grayish-green body. This shades of color may vary depending on the subspecies, given that this bird is distributed thoughout the tropical region South to the Amazon river and East to the Andes. There is also a curiously isolated population in the Orinoco river basin. It lives in secondary forest, forest edges and even in cities with plenty of trees. Spends most of its time in the canopy, rarely coming to the ground. This bird moves in a very typical way, climbing the branches in a fast zig-zag, up to the tip and then letting itself fall onto the base of the next branch. It feeds mainly on s...
Leia Mais11,5cm. Identification: there is no other Brazilian species like this bird, at least not in urban and disturbed areas. Formerly all the house wren populations ranging from Canada to Chile were considered as a single species, but after several studies the populations south to Mexico were renamed as the Tropical House Wren (Troglodytes musculus ). This hyperactive bird hops non-stop on the ground in search for the small invertebrates it feeds on, reminding a mouse (musculus = mouse ). It only perches to rest or to sing. Its song is very complex and melodic, like other well known members of the Troglodytidae family. It is famous for the breeding behavior, as this bird may nest in the mos...
Leia Mais16cm. Identification: The male is practically unmistakably recognized for the fully barred body and a black crest in the head. The female is ferruginous and has a crest and is barred in the head. It is currently the only antshrike which lives in really urban and disturbed areas. It is worth reminding that this bird has only recently conquered the urban environment. In the early 80s the first records of this antshrike in large cities were so unexpected that they yielded notes in scientific papers. Like other antshrikes it lives in couples, leaping and flying from branch to branch, usually through the short trees’ canopy in search for the small arthropods it feeds on. In the breeding seas...
Leia MaisWhite-spotted Woodpecker 18cm. Identification: it is a small woodpecker with drab colors. The body is brown, heavily spotted and barred in darker shades of brown and with some white spots below. The male has reddish regions in the head. Very little is known about this woodpecker, probably due to its inconspicuous colors and behavior. It lives in areas with plenty of trees as parks, woods and secondary forests. This woodpecker occurs mainly in the medium and higher forest levels, rarely coming to the ground. Like other woodpeckers it feeds on insects it collects from tree trunks and also on berries.
Leia MaisNome popular: pixirica
Árvore até 14m; extremidade dos ramos glabra, levemente achatada; folha simples, oposta, sem estípula, pecíolo achatado, 2,5 X 0,2cm, avermelhado no material seco, lâmina elíptica, ápice longo-acuminado, base atenuada, 9-12,5 X 3-5,5cm, margem inteira, cartácea a subcoriácea, venação acródroma, 1 par de nervura secundária, mai conspícua na face abaxial, venação terciária paralela, mais conspícua na abaxial, nervura marginal próxima à margem, pouco conspícua, tricomas cedo caducos.
Distribuição: Bahia até Santa Catarina; formações florestais. Referência:Baumgratz, J.F.A.; Souza,...
Leia MaisNome popular: pixirica
Árvore até 9m; extremidade dos ramos denso-estrelado-ferrugínea; folha simples, oposta, sem estípula, pecíolo estriado, 5,5 X 0,2cm, denso-estrelado-ferrugíneo, lâmina elíptica, ápice acuminado, base arredondada, 15-20 X 6,5-9cm, margem inteira, membranácea a subcartácea, venação acródroma, 2 pares de nervuras secundárias, conspícuas na face abaxial, venação terciária paralela, conspícua na abaxial, face adaxial esparso-estrelada, abaxial denso-estrelada, pontuações brancas na face adaxial, marrom-esverdeada no material seco, discolor.
Distribuição: México até o estado de Santa Catarina; fo...
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Árvore até 12m; extremidade dos ramos achatada, glabra, descamante; folha simples, oposta, sem estípula, pecíolo sub-séssil, 0,2 X 0,1cm, glabro, nigrescente no material seco, lâmina elíptico-lanceolada ou oval-lanceolada, ápice agudo, base assimétrico-arredondada, 9-14 X 3-4cm, margem inteira, cartácea a sub-coriácea, venação camptódroma, nervura central conspícua, amarronzada no material seco, na face abaxial, ca.15 pares de nervuras secundárias inconspícuas, nervura marginal ca. 0,3cm da margem, pouco conspícua, glabra.
Distribuição: Bahia até Santa Catarina; formações florestais. Referência:Imagens do Diamictito, rocha sedimentar conglomerática com matriz argilosa que contém grãos de areia e grânulos, além de seixos, calhaus e esparsos matacões. Podem ser maciços ou apresentar estratificação incipiente de camadas mais ricas em grãos grossos com camadas mais ricas em grãos finos. Local de ocorrência em Campinas: Centro-Norte/Centro-Sul do município de Campinas Formação a qual pertence: Subgrupo Itararé Tipo de rocha: Rocha Sedimentar Características da rocha: Rocha conglomerática, com camadas tabulares, de espessuras métricas. Apresentam matriz argilosa que contém grãos de areia e grânulos, além de seixos, calhaus e esparsos matacões, de várias litologias. Podem ser mac...
Leia MaisUm sistema agroflorestal (SAF) é uma estratégia de uso da terra que combina o cultivo de árvores, arbustos e plantas com a agricultura ou a pecuária em uma mesma área. Esse método promove a integração sustentável de elementos florestais e agrícolas, gerando benefícios econômicos, ambientais e sociais. Um resumo visual para representar um SAF pode incluir uma imagem que ilustra uma paisagem agrícola com árvores intercaladas, mostrando a coexistência de cultivos agrícolas e vegetação florestal. Essa integração beneficia a biodiversidade, a conservação do solo, a captura de carbono e a produção de alimentos.
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