1000th observation passed!

Today, the AfriBats-project passed its 1000th observation with a beautiful series of long-term observations of a family of Mauritian tomb bats (Taphozous mauritianus) by Martin Grimm from Tanzania.

Since the last collection of highlights, there's been a fantastic and increasing number of bat observations from around Africa, Madagascar and smaller islands. Some were obtained during dedicated research projects while a large number was contributed by interested citizen scientists.

Jack Bradbury, of Hypsignathus-fame, shared some of his historic bat observations from Gabon, which date back to the 1970ies and which were taken during a time when technology was far less advanced than today. Hard to imagine the serious constraints to bat research ...more ↓

Posted on May 27, 2014 09:57 PM by jakob jakob | 0 comments | Leave a comment
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Recent observations View all

Photos / Sounds

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What

Horseshoe bats Genus Rhinolophus

Observer

joachim

Date

September 20, 2014

Description

8 speciemen in a chamber of the cave
horseshoebat??

natalie Project curator ID

Genus Rhinolophus

Photos / Sounds

What

African sheath-tailed bat Coleura afra

Observer

gvi_shimoni

Date

September 15, 2014

Description

Forearm length: 5cm
head to tail Length: 6.5cm

Tags

GVI

natalie Project curator ID

Coleura afra

Photos / Sounds

What

Mastiff Bats Family Molossidae

Observer

nick22

Date

September 20, 2014

Description

Relatively small Bat that was flying around in our room

natalie Project curator ID

Family Molossidae

Photos / Sounds

15073912158_83c5578085_s

What

Vesper Bats Family Vespertilionidae

Observer

johannsnyman

Date

September 16, 2014 08:40 PM HST

natalie Project curator ID

Family Vespertilionidae

Photos / Sounds

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What

Maendeleo horseshoe bat Rhinolophus maendeleo

Observer

jakob

Date

February 25, 1992

Description

mistnetted 19:10-19:30 h

Kock, D., Csorba, G.& Howell, K.M., 2000. Rhinolophus maendeleo n. sp. from Tanzania, a horseshoe bat noteworthy for its systematics and biogeography (Mammalia, Chiroptera, Rhinolophidae). Senckenbergiana biol. 80(1/2): 233-239.

jakob Project curator ID

Rhinolophus maendeleo

Photos / Sounds

What

Horseshoe Bats Family Rhinolophidae

Observer

denism

Date

September 20, 2010

jakob Project curator ID

Family Rhinolophidae

Photos / Sounds

Square

What

Old World Roundleaf Bats Genus Hipposideros

Observer

gvi_shimoni

Date

the past

Description

Approx 6 inches head to tail.

natalie Project curator ID

Genus Hipposideros

Photos / Sounds

Square

What

African trident bat Triaenops afer

Observer

gvi_shimoni

Date

September 1, 2014

Description

Approx 3 inches head to tail.

natalie Project curator ID

Triaenops afer

Photos / Sounds

Square

What

African sheath-tailed bat Coleura afra

Observer

gvi_shimoni

Date

September 1, 2014

Description

Approx 4 inches head to tail.

Tail half sheathed.

Photos / Sounds

Square

What

Bent-winged bats Genus Miniopterus

Observer

gvi_shimoni

Date

September 1, 2014

Description

Approx 2-3 inches head to tail.

natalie Project curator ID

Genus Miniopterus

Photos / Sounds

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What

Bent-winged bats Genus Miniopterus

Observer

gvi_shimoni

Date

September 1, 2014

Description

Approx 2-3 inches head to tail.

natalie Project curator ID

Genus Miniopterus

Photos / Sounds

Square

What

Tomb Bats Genus Taphozous

Observer

gvi_shimoni

Date

September 1, 2014

Description

Approx 3 inches head to tail.

natalie Project curator ID

Genus Taphozous

Photos / Sounds

Square

What

African sheath-tailed bat Coleura afra

Observer

gvi_shimoni

Date

September 1, 2014

Description

approx 3 inches head to tail.

natalie Project curator ID

Coleura afra

Photos / Sounds

Square

What

Egyptian Fruit Bat Rousettus aegyptiacus

Observer

gvi_shimoni

Date

September 1, 2014

Description

Approx 6 inches head to tail.

natalie Project curator ID

Rousettus aegyptiacus

Photos / Sounds

Square

What

African trident bat Triaenops afer

Observer

gvi_shimoni

Date

September 1, 2014

Description

approx 3 inches head to tail.

Photos / Sounds

14956068010_21fec6902a_s

What

Peters's epauletted fruit bat Epomophorus crypturus

Observer

tpixel

Date

July 28, 2014 01:59 AM HST

Description

We saw this Epauletted fruit bat near the boat desk prior to boarding for an excursion in the Okavango Delta. When I first tried to photograph it, it flew away to a tree nearby. I then managed to approach it and it stayed there despite the flash.

nico64 Project curator ID

Epomophorus crypturus

Photos / Sounds

What

Straw-colored fruit bat Eidolon helvum

Observer

ali_bat

Date

November 28, 2008

Place

(Somewhere...)

Description

Seasonal Eidolon helvum colony at Kasanka National Park, Zambia

Excerpt from Peel et al (2012)

Location:
The largest known colony of E. helvum roosts in a 0.4km2 patch of ‘mushitu’ evergreen swamp forest in Kasanka National Park in Central Zambia.

Population size and migration:
The site is empty for most of the year, is populated rapidly from late-October each year, and persists for 2 ½ months. The arrival and departure dates are remarkably consistent annually, and coincide with peak fruit production in the region (Richter and Cumming, 2006). The peak population size has been estimated at between 1.5 million (Sørensen and Halberg, 2001) and 5–10 million (Richter and Cumming, 2006) individuals, giving a density of 4–25 bats per m2. In this study, bats were observed roosting in all three canopy layers of dense vegetation, and often much lower to the ground (5–15 m) than is typically observed in urban colonies. While no further estimations of population size were performed, the population was anecdotally reported by park guards to have declined over the last decade.

Reproductive seasonality:
Almost all (68/69) females sampled here were pregnant, and the majority were in early to mid gestation (56% and 32% respectively). While no females were observed with attached juveniles from 27/11 – 3/12/2008, 5 females (7%) were in late stage of pregnancy, and one female was observed giving birth in the colony on 3/12/2008. Lack of complete synchrony in female reproductive status meant that a ‘phase’ was not estimated for this colony.

Roost structure:
A female bias (63%) was observed in bats caught by hand, in mist nets and by shooting (by another research team in the park at the time).

Bat-human interactions:
The E. helvum roost in Kasanka National Park is a tourist attraction, with tourists visiting the periphery of the colony to watch the bats fly out to feed at dusk and return to the roost at dawn. While close contact is not permitted, the sheer number of bats flying overhead still presents a risk of contact with urine and faeces. Park employees, researchers and film crews are permitted to enter the bounds of the colony, and therefore face an increased risk, however no facemasks or other personal protective equipment are routinely worn. For this, and previous research, bats were caught by hand by park employees, with a high risk of incurring bite wounds. No employees reported any clinical signs believed to be associated with bite wounds.

Refs:
Peel, A. J. (2012). The epidemiology of Lagos bat virus and henipaviruses in straw-coloured fruit bats (Eidolon helvum). PhD Dissertation. University of Cambridge, Cambridge. Available at: http://www.dspace.cam.ac.uk/handle/1810/244571
Richter, H., & Cumming, G. (2006). Food availability and annual migration of the straw-colored fruit bat (Eidolon helvum). Journal of Zoology, 268(1), 35–44.
Sørensen, U., & Halberg, K. (2001). Mammoth roost of nonbreeding straw-coloured fruit bat Eidolon helvum (Kerr, 1792) in Zambia. African Journal of Ecology, 39, 213–215.

natalie Project curator ID

Eidolon helvum

Photos / Sounds

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What

Yellow-winged bat Lavia frons

Observer

makgobokgobo

Date

December 27, 2007 12:14 PM EAT

Place

Ishasha (Google, OSM)

natalie Project curator ID

Lavia frons

Photos / Sounds

Square

What

Peters's epauletted fruit bat Epomophorus crypturus

Observer

makgobokgobo

Date

December 27, 2006 11:01 AM SAST

natalie Project curator ID

Epomophorus crypturus

Photos / Sounds

Square

What

Wahlberg's epauletted fruit bat Epomophorus wahlbergi

Observer

ben_risky

Date

March 26, 2014

Place

Hola kenya (Google, OSM)

Description

I captured 3 individual Wahlberg's epouletted fruit bats in a mist net set in a woodland near Hola Irrigation scheme within NYS camp. The pictured was captured by Martin Odino

nico64 Project curator ID

Epomophorus wahlbergi

Photos / Sounds

Square

Observer

ben_risky

Date

December 19, 2010

Description

A single bat was captured in mist net set in Acacia woodland near Earthwatch facility in Samburu at the foot of Matthews range east of Wamba town

Photos / Sounds

Square

What

Straw-colored fruit bat Eidolon helvum

Observer

ben_risky

Date

June 22, 2014

Place

(Somewhere...)

Description

A colony of about 5,000 bats on trees in Uhuru park within Mombasa town. this is the 3rd month i have observed this colony which was not there before last year(2013).

natalie Project curator ID

Eidolon helvum

Photos / Sounds

What

Cyclops roundleaf bat Hipposideros cyclops

Observer

jakob

Date

June 23, 2014

Description

Observation courtesy of Jerry Garteh, Society for the Conservation of Nature in Liberia (SCNL, www.scnlib.net)

jakob Project curator ID

Hipposideros cyclops

Photos / Sounds

What

Greater Mascarene flying fox Pteropus niger

Observer

rinahart169

Date

August 28, 2014 09:13 PM GST

Place

(Somewhere...)

Description

Took these shot during a hike up Lion Mountain (Mauritius).

natalie Project curator ID

Pteropus niger

Photos / Sounds

What

Straw-colored fruit bat Eidolon helvum

Observer

abedilartey

Date

August 8, 2014

Place

(Somewhere...)

Description

Eidoloon, helvum, colony

natalie Project curator ID

Eidolon helvum

Photos / Sounds

Square

What

Straw-colored fruit bat Eidolon helvum

Observer

abedilartey

Date

July 26, 2014

Place

(Somewhere...)

Description

Eidolon, helvum

natalie Project curator ID

Eidolon helvum

Photos / Sounds

Square

What

Little Collared Fruit Bat Myonycteris torquata

Observer

irorotanshi

Date

April 23, 2011

Tags

ONP

nico64 Project curator ID

Myonycteris torquata

Photos / Sounds

Square

What

Zenker's fruit bat Scotonycteris zenkeri

Observer

irorotanshi

Date

April 23, 2011

natalie Project curator ID

Scotonycteris zenkeri

Photos / Sounds

14867047932_a4719b44e6_s

What

Horseshoe bats Genus Rhinolophus

Observer

kitbarn75

Date

July 28, 2014 10:07 AM CET

Description

This little guy apparently roosts here every day. We saw him or her in the exact same place hanging from the roof at the Cheetah Conservation Fund. I am sure you could contact the folks there and find out more info:
cheetah.org

natalie Project curator ID

Genus Rhinolophus

Photos / Sounds

Square

Observer

makgobokgobo

Date

August 18, 2013 08:07 AM UTC

Place

Kindia (Google, OSM)

Tags

natalie Project curator ID

Genus Tadarida
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About

The bat fauna of Africa and surrounding islands boasts nearly 300 species, but the distributions of many species are poorly known. Despite the crucial role of bats (Chiroptera) as pollinators and seed dispersers of plants as well as predators of insects, one-fifth of the bat species in Africa are threatened, and populations are declining due to habitat loss, disturbance and destruction of roost ...more ↓

5643-mini jakob created this project on April 02, 2012
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